HDD AND ASSOCIATED WORKS FOR SPURLINE OF BARAUNI GUWAHATI PIPELINE PROJECT OF GAIL (INDIA) LIMITED

Amount

RAILWAY CROSSING AT CH. 2.3 Km (by HDD Method)

Complete work for Installation of carrier pipeline of size 12" NB, 7.9/8.7 mm wall thickness, API 5L Gr. X- 70 & CS Conduit pipe size 6" NB, 6.4 mm thk., IS 3589, Fe 410 for HDPE Duct/OFC across Railway Tracks along with Pond and/or Nala by curved HDD in single shot includes bending in horizontal as well as vertical plane between the limits as per approved drawing/scheme/documents - detailed construction drawings & documents shall be prepared by the contractor duly approved by GAIL/MECON, which includes design, preparation of design basis report, detail execution philosophy, risk mitigation philosophy (as required), detail engineering as per specification, approved procedures & applicable approved drawings etc. The job includes execution of the complete crossing and associated works, but not limited to following works in accordance with technical specifications, latest applicable guideline, codes & standard,whichever is stringent and as per provision of Contract document. The decision of EIC shall be final and binding to the Contractor

Mobilization & demobilization as per contractor's scope of supply of all materials and consumables, HDD machine, wireline tracking tool for precise control of drilling path & other associated equipment, manpower and other resources to work site including handling, loading, unloading, aligning, etc. Acquiring the required land by Contractor for storage, fabrication, site preparation and develop temporary approach access to work site for transportation of pipes and other construction equipments etc. for execution of the works.

Contractor has to mandatorily carryout topographical survey including identification of underground utilities and Geotechnical Investigation (at least 2 Nos. of Boreholes of minimum 15.0 m depth) to establish bed strata, its bore log by soil testing as per technical specification attached in the tender. Carry out all other additional surveys, if required, for collecting data relevant to design & construction of crossing, engineering & design calculation, preparation of all necessary construction drawing duly approved by owner / concerned authority.

Work/construction permit for the crossing as well as utility crossings (if any) encountered during the crossing prior to start of the execution work from respective concerned authority/ Engineer In Charge. Liaisoning with PWD, Railway and other concerned local / statutory authorities for all works required for execution & completion of curved HDD works including placement of HDD rig/string preparation.

Drilling to the required depth along curved path in single shot (i.e. bending in horizontal as well as vertical plane) including maintenance of drill hole in all types of soil strata (including soft/ hard/ disintegrated rock/ boulders/ cobbles/ gravles etc.), all depth to accommodate the pipeline and CS conduit at all conditions of the crossing by HDD method.

Installation of the proposed pipeline along with CS conduit at a depth of more than 10 m below the NGL or as per approved profile or as desired by concerned authority / as per instruction of EIC (whichever is more/stringent) by HDD method to the correct profile as per approved drawings. Actual depth of crossing shall be decided based on the authority permission and depth data of steel girders/piling/foundation in railway ROW. All type of surveys required to carry out & complete the HDD works along with associated works and all type of liaisoning works with concerned authority for obtaining the required data are in the scope of Contractor and no separate payments shall be made.

Supply of 40 mm, permanently lubricated HDPE Telecom DUCT (quantity of HDPE Duct shall be two times the approved HDD profile length + 80 mtrs) (if the HDD Profile length changes, accordingly the HDPE duct length shall be changed), Factory Acceptance Testing as per specification, Supply of spare HDPE accessories like End Plugs (EP), Cable Sealing Plugs (CSP), End Caps (EC) etc. complete in all respect as per specification and as per direction of EIC). For Laying 2 runs of HDPE Duct, separate drums of HDPE Duct shall be supplied. The HDPE Duct must be procured after approval of HDD profile during detail engineering. Accordingly, quantity of HDPE Duct shall be two times the approved HDD profile length + 80 mtrs

Installation of 40mm OD, permanently lubricated HDPE Telecom ducts (2 Runs), in HDD section through CS conduit in all type of soil & terrain, excavation & work for HDD as required, cleaning and sealing of ducts at the end of laid lengths, Duct Integrity Testing of supplied 2 runs of 40 mm OD permanently lubricated HDPE Telecom Duct, jointing (wherever deemed necessary by EIC) of HDPE conduit, supply and installation of HDPE Duct accessories (HDPE accessories required including Fusion Couplers, End Plugs, Cable Sealing Plugs, End Caps, etc. suitable & sufficient for supplied Duct.),Testing of laid permanently lubricated HDPE ducts, rectification / modification if required, cleaning and sealing of ducts at the end of laid lengths,preparation of report all complete as per tender & as per direction of EIC. For payment purpose running HDD length (for each run of duct) shall be considered. Jointing of HDPE Ducts shall be avoided as much as possible.

All activities pertaining to Blowing / Laying of optical fiber cable in each of the laid 40 mm HDPE telecom duct (after testing of OFC drum at site), Blowing/Laying of OFC cable to be done in both the ducts installed in CS conduit, testing of OFC before Blowing/laying, cable sealing etc. using all materials required complete as per specifications and drawing provided in the bid document & as per direction of EIC. (spare loop of 10 Meter at Blowing Pit, 20 Meter at Jointing Pit shall be provided). OFC shall be free issued to the bidder.

Testing of the laid OFC (including OTDR Test of the laid OFC and end to end Power Testing of laid OFC), Identification of the fault, Rectification, preparation of reports, reconciliation of OFC etc., all testing reports in the format provided in the tender, CD of all fibre OTDR traces, work complete in all respect with all necessary accessories for all location, final acceptance / Handing over of the OFC to other contractor, all works complete as per the tender and as per the direction of Engineer in charge. For Testing details, Refer tender .

Supply and installation of OFC Jointing pit (RCC pit as per MECON dwg) at both ends of the HDD, including complete sand filling etc all complete as per spec, drawing provided in the bid document. The Jointing pit shall be provided 2 nos. each at each end of the HDD (1 each at each end for each run of HDPE duct with OFC) and 1 no. at each planned/ unplanned joint location. Supply and installation of OFC Joint Marker at every location of OFC Jointing Pit. Scope also includes supply of Jointing Closure (24F) for each Joint Pit. The Joint closure shall be handed over to other contractor for Jointing of Laid OFC. In addition, if Jointing is done by the bidder, supply and installation of Jointing Closure (24F) for each OFC joint done by the bidder is included in scope of the bidder.

Supply, Installation & Commissioning of Electronic Marker System as per specification , test certificate and documents etc. consisting of Electronic Markers (To be buried underground along with each OFC Jointing Pit at each ends). The electronic marker shall be provided for each Jointing pit supplied by bidder.

Carrying out cleaning, gauging and post installation hydrostatic testing of complete pipeline section laid by HDD method as approved by Owner to specified test pressure (1.5 times the design pressure, not exceeding 95% of SMYS at any location) for minimum 24 hours holding period; providing all equipment, pumps, test headers, fittings, instruments, dead weight tester, pressure recorder, etc., and services, supervision, labour, consumables, water including supply of corrosion inhibitor, air, etc. as required for successful completion of hydrotesting of pipeline to acceptance criteria defined in the specifications; complete dewatering and swabbing of the pipeline; final tie-in joint ( if required) with existing laid mainline at required depth including all assoctiated work like excavation, welding, NDT, coating etc.

Supply and providing end seal at both ends of CS conduit.

Backfilling of the ditch / trench including restoration, clean-up of area, disposal of drilling fluid & waste, etc. to the satisfaction of Owner / Concerned Authority and getting NOC from concerned authority.

Preparation and submission of as built drawings & other drawings, etc. duly approved by Owner.

Railway crossing including Nala, Pond etc. at minimum cover mentioned as above at chainage 2.3 Km ( Approx.) (Ref. Alignment sheets/Crossing Detail Drawing/Scheme enclosed in bid document)

Crossing of Railway alongwith adjacent road / asphalted road / drain / nala/ pond, if any, by curved HDD (i.e. bending in horizontal as well as vertical plane) for carrier pipeline of size 12" NB, 7.9/ 8.7 mm wall thickness, API 5L Gr. X- 70 along with CS conduit for HDPE Duct/OFC, Installation of HDPE Duct & OFC

Notes: (i) HDD is to be carried out in curved path in single shot, which includes bending of bore path in horizontal as well as vertical plane due to space constraints and other limitations. Instant HDD is critical in nature as there is space constraint at both side of the Railway crossing and surrounding consists of Nala, Pond, Railway track, road & undulated/hilly terrain with shops/ houses along the road in a short span. Contractor may have to acquire additional land for placement of HDD rig/string prepration. Crossing width indicated in the bid document may vary as per site condition. Bidders are advised to visit the site and carry out confirmatory bore-logs if felt necessary, before quoting, for actual assessment of extent of crossing, quantum of work, site condition, soil strata and to assess the extent of cover which may have to be provided. Actual string length for HDD shall be as per design calculations so that pipe is not under stress as permitted by codes/ specifications. Final length of string shall be decided after decision of minimum cover requirement by concerned Authority/ Engineer-in-charge.

(ii) The Bidder has to quote for X-ing alongwith 6" CS conduit. It is sole discretion of the Contractor to do HDD crossing of mainline pipe as well as CS conduit pipe either by suitabily strapping together both the carrier pipe & CS conduit and pulled through the same drill hole or making separate curved HDD for 6" CS conduit for OFC laying at minimum 4m distance apart from centreline of HDD of mainline either side. This decision will also depend upon the authority permission and space constraint in ROU. No separate payment for HDD for 6" CS conduit shall be paid in any of the above cases.

(iii) Payment shall be made only for the tied-in carrier pipeline length as per approved profile or actual executed profile length whichever is less. In case actual executed profile length is more than the approved profile length due to site constraints, the same needs to be jointly recorded and certfied by Owner, PMC and Contractor for payment purpose. The above item rate is inclusive of installation of HDPE ducts, blowing of OFC inside 2 nos. HDPE duct in CS conduit, which is laid by HDD method and no separate payments shall be made under any other clause mentioned elsewhere.

(iv) Survey data reports to the extent available are attached with the tender document. Contractor shall mandatorily be required to carry out topographic survey and geotechnical investigation without any cost and time implication. The contractor shall submit design calculation and all construction (profile) drawings, survey data for GAIL / PMC approval. Work shall start only after approval of the above.

(v) Contractor shall not be entilted for any extra payment due to change of strata, location / area constraint, higher capacity of rig, etc.

(vi) Preparation of pipeline & CS conduit string including welding, coating and pre-testing of carrier pipe and making the pipeline ready for installation by HDD method are exclusive of above SOR item and their payment shall be made under other SOR item mentioned elsewhere in SOR. (vii) Void (viii) The above works is excluding supply of required length of CS conduit which is covered elsewhere in the SOR.

(ix) Based on the soil strata, if bidder / contractor feels requirement of any additional protective coating over and above 3LPE coated pipe/ joint coating for successful pulling / execution of HDD, the same shall be supplied and installed by the contractor after due approval by EIC without any additional cost to company and cost for the same is deemed to be included in above quoted rate.

(x) Contractor may have to excavate & maintain some area upto a depth suitable for placement of HDD rig in order to achieve the desired cover as per site conditions and approved profile drawing. Above item rate is inclusive of all work and all material such as sheet piling etc. required for excavation. No additional payment on this account shall be made to Contractor and the quoted rates are deemed to be inclusive of same. Bidders are advised to visit the site for assessment of actual site conditions and quantum of work to be executed.

(xi) As per railway guidelines, class-4 thickness linepipe shall be used in Railway ROU and at least upto risk radius on either side.

(xii) Depth of the Centre line of the pulled Carrier Pipeline by curved HDD method at entry and exit shall be kept at approx. 2.0 meter for final tie-in with existing laid pipeline, however, in case Contractor fails to maintain above depth of 2.0 meter and depth of the Centre line of the pulled Carrier Pipeline by curved HDD method at entry and exit pits are more than 2.0 meter due to unavoidable site conditions/issues, then contractor has to extend the pulled carrier pipe by laying of additional carrier pipe section through open cut trench method upto required length to maintain the desired cover (approx. 2m). Work involved for bringing the pipeline at desired depth ie; excavation, sheet piling (if required), dewatering and to maintain the pit dry, Tie-in , NDT, Joint coating , backfilling, restoration of site etc. as per specification are included in the scope of this item . Pipeline laying by open cut from higher depth to approx. 2.0 meter depth shall be payable through separate item available elsewhere in SOR ie A00200. Supply of LR bends (as required), shall be payable through separate item available elsewhere in SOR ie A00300.

(xiii) Rates for laying of pipeline by open cut, if required for interconnection of HDD section with existing pipeline, shall be paid separately through other SOR item available elsewhere.

PIPELINE LAYING / INSTALLATION BY OPEN CUT METHOD

Laying/ installation of coated line pipe by open cut method, including but not limited to, Receiving and taking-over, handling, loading, transportation and unloading of Owner supplied externally corrosion coated pipes and other Owner supplied materials from Owner designated place(s) of issue/ Existing contractor's storage yard, survey, staking, clearing of ROU, grading, stringing, cold field bending (as required), installation of cold field & LR bends (as required), welding, NDT, repair of welds, replacement in case of irreparable defects, re-radiography of repairs, joint-coating, trenching to all depths to achieve a cover of min. 1.2m from existing ground level, crossing of minor roads/ nala by open cut, crossing of HT Lines/ foreign pipelines, lowering, supply & installation of warning mat/ mesh as per specification, backfilling, internal cleaning using water & compressed air, gauging, pressurization, hydrotesting, Repair of defects recorded during EGP/gauge plate run or otherwise, hydrotesting, de-watering, swabbing, restoration, final clean-up of ROU, reconciliation of FIM, return of surplus FIM to owner's designated yard, preparation of as-built drawings & documents including supply of all consumables (such as electrode, coating material, pigs etc.), equipment (pumps, compressors, etc.), machinery and manpower as per specifications,drawings, other provisions of Contract and instructions of Engineer-in-Charge.

Scope also includes supply & installation of 40mm permanently lubricated HDPE Telecom DUCT, Factory Acceptance Testing as per specification, Supply of spare HDPE accessories like Fusion Couplers, End Plugs (EP), Cable Sealing Plugs (CSP), End Caps (EC) etc. in same trench as pipeline, jointing, supply & installation of HDPE accessories, testing, supplying of OFC jointing pits (as required), blowing of OFC after testing (spare loop of 10 Meter at Blowing Pit, 20 Meter at Jointing Pit shall be provided- No payments for laying shall be made for these spare loops), supply & installation of electronic marker, Testing and commissioning of OFC including Test of the fibre for the smooth operation system on wavelengths, OTDR Test of the laid OFC, end to end Power Testing of laid OFC, Identification of the fault, Rectification, preparation of reports, reconciliation of free issued OFC etc., all testing reports in the format provided in the tender, CD of all fibre OTDR traces, work complete in all respect with all necessary accessories for all location, final acceptance & Handing over of the same to other contractor(mainline laying contractor) and as per the direction of Engineers in charge, as per specification & contract agreement. For Testing details, Refer PJS, specifications and other drawings and documents provided in the tender.

SOR shall be read in conjuction with scope of work, job specific requirements, specifications, standards, drawings and other provision of contract document. All above works, line pipe laying and installation of all above works for buried pipeline as per following details: Installation of Coated Line Pipes with a minimum cover as per specification as per following details:

Line pipe details Size Thk. Grade Coating Type Length of each Pipe Type of Soil/strata mm(NB) (mm) 323.9 7.9/8.7 API 5L Gr. X-70 3 Layer PE Double random (approx. All Soils/strata PSL-2 Coating 11.5 to 12.5 mtr.) & Bevel End

Notes: 1. This item rate is applicable for complete work of laying of underground pipeline. The length of pipeline is tentative. 2. Rate for laying of OFC, supply & installation of conduit shall be inclusive in the above rates. 3. OFC shall be provided as free issue material to the contractor. 4. Supply of HDPE duct and accessories shall be in scope of contractor. 5.The above rate shall be inclusive of hydrotesting of complete pipeline section 6. Payment for Preparation of as-built drawings, pipe-book and other records as specified in the specifications is to be covered in this SOR rate. 7.Bidders are advised to visit the site for actual assessment of site. 8. Contractor shall return all surplus material to defined storage yard as mentioned in Annexure-2 to SCC, as directed by Engineer-In-Charge

LONG RADIUS BENDS

Supply of Long Radius Bends (R = 6D) of various angles as required for tie-in of carrier pipeline of HDD section with mainline for 12" dia. pipe, API 5L Gr. X70 (thk. 8.7 mm) as per T.S. (No. MEC/TS/05/62/015) enclosed in Tender Document (Bare pipe for LR Bends shall be free issue to the contractor).

TCP WORK

Supply, packing, transportation to site, storage, installation, testing & commissioning of the Temporary Cathodic Protection system using Mg (Min 5.0 Kg Each) galvanic anodes to protect the external surface of 3LPE Coated pipe at the crossing by HDD against corrosion for a design life of minimum 2 years as per standard specification No.- MEC/S/05/E9/016A for temporary cathodic protection system, Scope of work/PJS, Data Sheets & tender drawings. Scope shall also include but not limited to the following for completion of jobs:

Sacrificial anodes- Pre packed Mg anodes

Prepacked Magnesium anodes for Carrier Pipe protection (Min 5.0 Kg Each) as per tender specification (1/2/3/4 Nos. of anodes) at both side of HDD crossing. (02 nos. on each side)

Supply, laying, termination, Glanding and ferruling TCP-Cables--The Cables shall be annealed high conductivity, stranded copper conductor, 650/1100V grade, XLPE Insulated & PVC Sheathed in new/existing test stations.

1c x 6 mm2 - Anode tail cable - unarmored

1 core x 6 mm2 - Potential Measurement, ref Cell & measurement cable- armored

1 core x 10 mm2 - current measurement cable & Pipeline to Test station- armored

Test Stations

New test stations Normal Size-(Weather Proof with IP-55) as per tender drawings with name plate

All Cable to pipe connections by Exothermic Process or Pin Brazing for all sizes (Upto 1C x 25mm2)

Monitoring of the TCP system on monthly basis of HDD portion till design life or closure of contract whichever is earlier.

PIPELINE STRING PREPARATION FOR CROSSING BY HDD METHOD

"Receiving and taking-over" as defined in the specification, handling, loading, transportation and unloading of Owner supplied externally corrosion coated line pipes and other Owner supplied materials from Owner's designated place(s) of issue/ dump site(s)/existing Contractor's storage yard to Contractor's own stock-yard(s)/ Work Shop(s)/ work-site(s) including stringing of line pipes on the desired alignment required for pulling of pipeline string during HDD operation, preparation of pipeline string of coated linepipe, associated fittings and accessories, etc. of following sizes given below, including executing all works; arrangement of all additional land or working space required for string preparation/during pulling (if required), Contractor's storage, fabrication, access for construction; supply of all materials (except Owner supplied materials), consumables, labour and other incidental works; return of the surplus pipes to the Owner's designated stockyard(s); carrying out all temporary, ancillary, auxiliary works required to make the pipeline ready for insertion by HDD method as per drawings, specifications, scope of work indicated in SCC and other provisions of Contract document and instructions of Owner, including but not limited to carrying out the following works:

Carrying out repairs of pipe defects/ replacement in case of irreparable defects and repairs of defects of pipe coating not attributable to Owner including defects/ damages occurring during transportation/ handling after taking over from Owner by Contractor including management of their own dump site, if required.

Stringing of line pipes along the desired & approved alignment required for pulling of pipeline string during HDD operation including providing straw/ sand/ soft soil bags, soft padding/ sand padding.

Aligning, bending, cutting and bevelling (as required) of pipes for welding and field adjustments, welding, carrying out destructive/ non-destructive testing of welds as required as per specification including 100% radiography by X-Ray and providng all requisite equipment, labour, supervision, materials, films, consumables all facilities and personnel to process, develop, examine and interpret radiographs and other tests, as required, carrying out repairs of weld joints found defective by Owner, carrying out re-radiography and other tests such as ultrasonic etc. as required on repaired joints etc. as mentioned in SCC & particular job specification.

Supply of special type "Dirax" or equivalent heat shrink sleeves coating materials for all field joints including special type coating repair patch material (PERP-60E or equivalent) as per specifications compatible with 3-Layer PE Coating as per tender specifications with prior approval of Owner.

Coating of all field weld joints. Payment for field joint coating inlcuding supply of material for above section shall be made through separate SOR item.

Carrying out cleaning through pigging, gauging, water filling, pre-hydrotesting of complete pipeline in one section/ test sections as approved by Owner to specified test pressure (1.5 times of the design pressure, not exceeding 95% of SMYS at any location) for minimum 6 (six) hours holding period; providing all equipment, pumps, test headers, fittings, pressure & temperature instruments etc., and services, supervision, labour, consumables, water, air, etc. as required; detection of leaks, if any occurred during pre-hydrotesting, attributable to Contractor and rectification of defects, re-testing after rectification with due approval of Owner, successful completion of pre-hydrotesting including dewatering of pipeline to acceptance criteria defined in the specifications.Payment for pre-hydrotesting including cleaning, gauging etc. of above section shall be made through separate SOR item.

(Note : Leak detection, its rectification and successfully re-hydrotesting shall be carried out by Contractor with a view that completion of all activity for successful pre-hydrotesting is not inordinately extended, which will hamper the overall project schedule. Further, no extra payment claim shall be entertained for re-hydrotesting, leak detection and their rectifications if defects found attributable to Contractor.)

Final clean-up and restoration of additional land / right of use / corridor including obtaining NOC from respective land owners & statutory authorities if required, and disposal of debris and returning surplus material to Owner's designated disposal area(s)/ stockyard(s) as directed by Owner for the complete HDD section

Preparation of pipe-book and other records as specified in the specifications

All welded joints of pipeline string shall be 100% radiographically tested by X-ray.

Line pipe details

Size Thk. Material Coating Type Length of each Pipe

inches (NB) (mm)

12 7.9/8.7 API 5L Gr. X-70 3 Layer PE Double random (approx.

Coating 11.5 to 12.5 mtr.) &

Bevel End

Notes: (i) Above SOR item is applicable for complete work of string prepration of pipeline section excluding pre-hydrotesting & joint coating of above section made for installation by HDD across the crossing. The length of pipeline is tentative.

(ii) Installation of pipeline string by HDD method & its post-installation hydrotesting is exclusive of above item and their payment shall be made under other SOR item mentioned elsewhere in SOR.

(iii) Payment for pre-hydrotesting including cleaning, gauging etc. of above section shall be made through separate SOR item.

(iv) Payment for field joint coating inlcuding supply of material for above section shall be made through separate SOR item.

(v) A pipe string of approx. 16 nos. pipes is available at site which shall be handed over to the Contractor. Please note that for this section, only welding has been completed and other activities like NDT, Weld Repair, Pre-testing & joint coating of this string is balance which shall be paid through separate SOR items.

(vi) Any coating damage in free issue linepipes/ existing welded pipeline string shall be jointly recorded during handing over to Contractor and same shall be payable to the Contractor through SOR item available elsewhere in SOR.

RADIOGRAPHY

Performance of radiographic inspection by X-ray as per scope of work and as per specifications including providing/hiring of all necessary equipments, supply of all consumables, and whatever else even though not expressely mentioned but required to perform the work as per specifications and instructions of Engineer-in-Charge (full circle re-radiography of the repaired joint and additional radiography necessitated due to poor performance of contractor's welder shall be carried out by the Contractor at his own cost and shall not be paid extra by Company). Radiographs shall be submitted to the Engineer-in-Charge for acceptance, whose decision shall be final and binding.

12" NB Pipeline - Full Joint

12" NB Pipeline - Repair joint

Note : (i) Quantity Indicated above is tentative and for already welded pipe string wherein existing joint ( made by earlier contractor) radiography/ repair activity need to be performed by contractor.

WELD REPAIR

Repair of weld found defective in NDT/X-ray as per technical specification and approved procedure, including all required work for locating the joint, marking at defective location of weld joint including all requisite equipment, labor, supervision, materials,consumables, all facilities and personnel for carrying repair joint

12", API 5L Gr. X-70 PSL2, 7.9/8.7 mm THK, 3 Layer PE Coating

Note: Quantity indicated above is tentative and for repairing the weld joint made by earlier contractor.

CUTTING & WELDING OF JOINT

Aligning, bending, cutting and beveling (as required) of pipes for welding and field adjustments, welding as per technical specification and approved procedure and providing all requisite equipment, labor, supervision, approved electrode , other materials,consumables, all facilities and personnel , carrying out repairs of these weld joints found defective in NDT/ X-ray as per technical specification & approved procedure.

12", API 5L Gr. X-70 PSL2, 7.9/8.7 mm THK, 3 Layer PE Coating

Note : (i) Quantity Indicated above is tentative and shall be applicable for the weld joints made by earlier contractor and require cutting and re-welding.

PRE-HYDROTESTING OF PIPELINE STRING

Complete work for Carrying out cleaning through pigging, gauging, water filling, pre-hydrotesting of complete pipeline in one section/ test sections as approved by Owner to specified test pressure (1.5 times of the design pressure, not exceeding 95% of SMYS at any location) for minimum 6 (six) hours holding period; providing all equipment, pumps, test headers, fittings, pressure & temperature instruments etc., and services, supervision, labour, consumables, water, air, etc. as required; detection of leaks, if any occurred during pre-hydrotesting, attributable to Contractor and rectification of defects, re-testing after rectification with due approval of Owner, successful completion of pre-hydrotesting including dewatering of pipeline to acceptance criteria defined in the specifications.

(Note : Leak detection, its rectification and successfully re-hydrotesting shall be carried out by Contractor with a view that completion of all activity for successful pre-hydrotesting is not inordinately extended, which will hamper the overall project schedule. Further, no extra payment claim shall be entertained for re-hydrotesting, leak detection and their rectifications if defects found attributable to Contractor.)

12", API 5L Gr. X-70 PSL2, 7.9/8.7 mm THK, 3 Layer PE Coating

Note: Quantity mentioned above is tentative and for complete pipeline string (preparded by earlier contractor as well as present scope) for the HDD section.

HDD SECTION JOINT COATING

Supply of special type "Dirax" or equivalent heat shrink sleeves coating materials for all field joints as per specifications compatible with 3-Layer PE Coating as per tender specifications with prior approval of Owner.

Coating of all field weld joints.

12", API 5L Gr. X-70 PSL2, 7.9/8.7 mm THK, 3 Layer PE Coating

Note: Quantity Indicated above is tentative and for complete pipeline string (i.e. newly made pipeline string as well as handed over pipeline string).

CS CONDUIT SUPPLY AND STRING PREPARATION FOR CROSSING BY HDD METHOD

Complete work of Supply of CS conduit pipes including all taxes, duties, transportation and inspection charges and Transportation including loading, unloading, handling of CS conduit pipe from Contractor's storage point to work at site, including stringing of CS conduit pipes on the desired alignment required for pulling of pipeline string during HDD operation, preparation of string of CS conduit at approved crossing length including all accessories, etc. of required sizes including executing all works; arrangement of all additional land required for Contractor's storage, fabrication, access for construction; supply of all materials, if any, consumables, labour and other incidental works; carrying out all temporary, ancillary, auxiliary works required to make the pipeline ready for insertion by HDD method as per drawings, relevant specifications, scope of work indicated in SCC, specification and instructions of Engineer-in-charge and other provisions of Contract document and instructions of Owner, including but not limited to carrying out the following works:

Carrying out repairs of pipe defects/ replacement in case of irreparable defects including defects/ damages occurring during transportation/ handling by Contractor including management of their own dump site, if required.

Stringing of CS conduit pipes along the desired & approved alignment required for pulling of pipeline string during HDD operation including providing straw/ sand/ soft soil bags, soft padding/ sand padding.

Aligning, bending, cutting and bevelling (as required) of pipes for welding and field adjustments, welding and providng all requisite equipment, labour, supervision, materials, consumables all facilities as mentioned in SCC & particular job specification.

Final clean-up and restoration of additional land / right of use / corridor including obtaining NOC from respective land owners & statutory authorities if required, and disposal of debris to disposal area(s)/ stockyard(s) as directed by Owner. Such clean-up & restoration activities shall be payable under SOR item "PIPELINE STRING PREPARATION & PRE-TESTING FOR CROSSING BY HDD METHOD".

Supply & string preparation of CS Conduit pipe 6'' NB, 6.4 mm thk., IS 3589, Fe410 or equivalent for HDPE duct / OFC

Coating of CS conduit with coal tar epoxy coating of minimum 600 microns (after proper cleaning) including supply of coating material, consumables etc.

Notes: (i) Payment for above item shall be made only for the length of final pulled length or as per approved drawing whichever is less. Installation of CS conduit pipeline string by HDD method is exclusive of above item and payment for the same shall be made under other SOR item mentioned elsewhere in SOR.

REPAIR OF DEFECTS IN LINE PIPE AND PIPE COATING (ATTRIBUTABLE TO OWNER)

Repair of Owner supplied line pipe and external corrosion coating of all thicknesses noted at the time of taking delivery by Contractor, including performing all works as per specifications and directions of Owner.

Repair of coating defects in 3-Layer PE Coating

Repair of Holiday in Coating

Supply of all coating repair materials as per specification to be compatible with line pipe coating material and as per the requirements of the relevant specifications, supply of all consumables, utilities, equipment, and all manpower required, pipe cleaning and surface preparation repairing of coating defects (resulting in holiday in coating) and testing including all handling, transportation, etc. for line pipes, performing all works necessary for the completion of the works strictly in accordance with the relevant specification and instructions of Owner. This rate shall be applicable per sq.cm of the exposed steel area.

Repair of Defects in Pipes of all sizes and thickness

Cutting and rebevelling of each end of pipe(dents / damage in bevels exceeding 3mm in depth)

Jack out (dents in bevels ranging between 1mm and 3mm in depth)

LEAKS/ BURSTS (ATTRIBUTABLE TO OWNER)

Major Leak/ Bursts which can be located by visual observation occured during pre-hydrotesting. All works for locating & detection of leak/ burst including necessary repairing/ replacing defective pipe lengths, including cutting out and removing the defective pipe, pretesting the replacement pipe, welding into pipeline string subjected for re-testing and NDT of welds, clean-up, retesting the full test section of pipeline including providing all labour, materials, consumables and inputs other than Owner supplied materials and performing all works as per drawings, specifications enclosed with the tender/ contract document and directions of Owner.

For pipeline size 12" NB

Note: (1) This rate is applicable for manufacturing defects in Owner supplied material only.

(2) Leak detection, its rectification and successfully re-hydrotesting shall be carried out as per approved procedure by Contractor with a view that completion of all activity for successful hydrotesting is not inordinalely extended which will hamper the overall project schedule.

IDLE TIME PRESERVATION

Preservation of complete HDD pipeline section (installed by Contractor) and its maintenance upto (01) one month by filling and pressurising the pipeline section with nitrogen to a positive pressure of 2 bars (g). Supply and maintenance of nitrogen at required pressure, including supply of all consumables, nitrogen, all equipment, manpower, etc., complete as per requirement of specifications, other provisions of contract document and instruction of Engineer In-charge.

Preservation and maintenance of pipeline at positive pressure of 2 (two) bars(g) beyond 1 month

Notes: i) Arrangement required for idle time preservation i.e. all required fabrication works for blanking at both ends, providing the provision for filling & venting of nitrogen and all necessary arrangement as required shall be done by the contractor as per instruction of EIC. ii) If month is partially completed, payment shall be made on pro-rata basis. iii) Contractor have to take prior permission from EIC for preservation & maintenance of HDD section.

DIGITIZATION OF RADIOGRAPHY FILMS:

Carrying out digitization of all radiographic films in the form of digital images (which can then be archived safely for long life and electronic retrieval) complying to all the legal local rules, codes and international standards. Submission of digital images of radiographic film along with compatible software in 6 sets of CD/DVD for electronic viewing /retreival.

VIDEOGRAPHY & PHOTOGRAPHY

Carrying out the videography and photography of all the HDD construction activities.i.e. Stringing, Welding, Radiography, Pre-hydrotesting, Joint Coating, all HDD activities, tie in, post hydrotesting, restoration etc performing all works as per specification of EIC and other provision of contract document.

Magnetic Cleaning and Electronic Geometry Pigging

Mobilisation/demobilisation of pigging tools, tackles, consumables, accessories and personnel by contractor at work site including but not limited to magnet pig, electronic geometry pigs and pig tracking device, temporary launcher and receiver as per specification and other provision of the bid document including supply of material, equipment, manpower, etc. as required for geometry inspection and magnet cleaning including calibration of magnetic and caliper tools at works site, running of adequate no. of magnet pigs and electronic geometry pigs (caliper) including pig tracking for successful completion of work, preparation of site report on pipeline, data analysis at Contractors facility as per specification and provisions of the Bid Document.

(i) The bidder must indicate currency(ies) against each quoted item of the SOR.

(ii) The total amount shall also be given by the bidder in the quoted currency(ies). (iii) Contractor shall be responsible for successul execution of the work tendered. Failure of activities i.e.; Pulling, Gauging, Post Hydro testing etc. shall be responsibility of Contractor and no payment on account of any such activity shall be payable to contractor; moreover, earlier successive payments made through RA bills shall also be recovered. Loss of free issue material occurred due to failure shall be treated in line with the provision of reconciliation of free issue material.

Total

GST (CGST&SGST/UTGST or IGST) in percentage (%) on Total above

TRENCHLESS ENGINEERING SERVICES PRIVATE LIMITED (BID ID -829948)