ALHW/DCE(A)/DB/EE (DD)/TEND- 06/2025-26/(Re-Call)

Plugging of holes : Identify the source / cavity through underwater diving, mapping of the size and location, and plugging cavities using gunny bags of size 0.50 m × 0.10 m × 0.50 m (approx) filled with local quarry fine aggregate and placing the gunny bags at the identified locations, underwater using a suitable long-boom excavator in coordination with certified divers. In case the source or route of the channel changes, the same methodology shall be adopted to close the gaps, and additional sand bags shall be placed with proper compaction wherever required to ensure effective plugging at the entrance of the old dry dock. Costs : The rate quoted by the bidder shall include providing and operating the long boom excavator of required capacity & size, cost of fine aggregate, gunny bags, filling and stitching of bags, transportation to the work site, lifting and underwater placement, deployment of divers, all accessories, labour charges, tools & plants, Labour Welfare Cess, GST, etc., complete. Equipments: The existing steel pontoon 60 Ton capacity (size 12m x 6m x 1.80m) and air compressor shall be provided by the Department on a rental basis. The long-boom excavator shall be arranged by the contractor at their own cost 231.00 Cum

Removal of available earth/debris : Removal of earth / debris from the work site using a suitable long-boom excavator and/or grab bucket system to the required level, and disposal / stacking of the same within a lead of 500 m inside the Dry Dock complex. Costs: The rate quoted by the bidder shall include cost of all labour charges, truck / tipper for shifting of earth, man power assistance for mobilizing and positioning equipments, forming any temporary approaches, if required, tools and plants, Labour Welfare Cess, GST, etc, complete. The equipment shall be provided on free of hire charges. Equipment: 1. At the request of the contractor with advance intimation, the Department shall spare the available dewatering pump of capacity 3000 m³/hr installed at work site, in "as is where is condition" at free of rental charge and operate the same by employee's of ALHW. The pump cannot be shifted and shall be operated only from the present location and ALHW shall arrange to operate the pumps as and when required by the contractor. 2. At the request of the contractor with advance intimation, ALHW shall spare the available TFC-280 model, 75 Ton capacity crawler-mounted crane, with operator at free of hire charge. 3. At the request of the contractor with advance intimation, ALHW shall spare the available Grab bucket of 1.15 Cum capacity on free of hire charges. Any repairs to the grab bucket shall be carried out by the department as per the site requirement. 4. The long-boom excavator ,Trucks & tipper shall be arranged by the contractor at their own cost. 5. The contractor shall arrange additional standby dewatering pump units of suitable capacity for pumping out any excess water accumulated in the working area at their own cost. Note:- This item shall be operated only for earth work excavation / removal of earth / debris. For other dewatering works during construction, separate item provided in this contract shall be operated.

Driving Sheet Piles: Providing, supplying, and driving HOT – ROLLED steel sheet piles of type PRX-600-12 or equivalent, having a width of 600 mm and made of 12 mm thick MS plate, as per the drawings and as directed by the Engineer-in-Charge. The sheet piles shall be driven to the required depth using a TATA crawler-mounted crane and vibro hammer, ensuring proper interlocking between adjacent piles and maintaining required verticality and alignment. Costs: The rate quoted by the bidder shall include cost of steel sheet piles, pitching, aligning, fabrication charges, all other materials, equipment, transportation, labour charges, tools & plants, Labour Welfare Cess, GST, etc, complete. Payment shall be made for the actual quantity executed in Metric Ton basis. Equipments: 1. At the request of the contractor with advance intimation, ALHW shall spare the available TFC-280 model, 75 Ton capacity crawler-mounted crane, with operator on rental basis. 2. The vibro hammer shall be arranged by the contractor at their own cost. 3. Welding machine, electrods, and all other required tools and plants shall be arranged by the contractor at their own cost.

Bracing arrangement for steel sheet pile Providing horizontal bracing with suitable steel section to hold the steel sheet piles in position and removal of the same. The agency shall submit the methodology to the Engineer-in-Charge for approval, and only after the approval of the methodology shall be adopted. Costs: The rate quoted by the bidder shall include cost of steel sections, fabrication, fixing charges, transportation of all materials to worksite, scaffolding, removal of bracing arrangement and all labour charges, tools and plants, labour welfare cess, GST, etc., complete. Payment shall be made for the actual quantity executed in Metric Ton basis. Equipments: Welding machine, electrods, and other required tools and plants shall be arranged by the contractor at their own cost.

Packing and filling the gap between sheet pile & existing raft Packing and filling the gap between the face of the existing dry dock raft and the proposed sheet pile by caulking with layers of jute, followed by placing M20 grade plain concrete with suitable admixture (using OPC 43-grade cement, 20 mm down graded stone chips & pulverised sand from Sri Vijaya Puram quarry) by suitable means to arrest water ingress. Costs: The rate quoted by the bidder shall include cost of all materials, mixing, placing , labour, cost of jute, scaffolding, divers, safety arrangements, tools and plant, labour welfare cess, GST, etc., complete Equipments: Mixer plant and all other tools and plants shall be arranged by the contractor at their own cost.

Dewatering at the time of construction Supplying and operating dewatering pump of suitable capacity to clear the surplus water during construction phase, as per site condition and / or as directed by the EIC on need basis. Costs: The rate quoted by the bidder shall include mobilizing and operating the pump, HSD, operators, labour, fittings & accessories, tools and plant, labour welfare cess, GST, etc., complete (Payment will be made on Cum basis for discharge of water)

Pile head trimming Dressing / chipping of the RCC pile head of 600 mm dia including cutting of steel liners & trimming of extra concreted pile above the designed cut off level and exposing the reinforcement to receive fresh concrete for deck slab etc., bending the reinforcement for new works. Costs: The rate quoted by the bidder shall include cost of all materials , labour charges, all equipment's, tools and plant, labour welfare cess, GST, etc., complete

Bed Concrete Providing and laying 200 mm thick bed concrete, either RCC precast or in situ, depending upon the approved methodology of the agency, using M20 grade concrete (OPC 43 grade cement, 20 mm down graded stone chips & pulverised sand from Sri Vijaya Puram quarry), as per the drawings and as directed by the Engineer-in-Charge Costs: The rate quoted by the bidder shall include cost of steel shuttering, all materials, labour charges, mixing, placing, curing, transportation of all materials to the worksite, ,tools and plant, labour welfare cess, GST, etc., complete (The cost of fabrication of steel reinforcement, which will be paid separately ) Equipments: Mixer plant and all other tools and plants shall be arranged by the contractor at their own cost.

Applying concrete bonding Supplying and applying the approved concrete bonding agent, including straightening the existing reinforcement to the required position as directed by the EIC. Costs: The rate quoted by the bidder shall include cost of approved bonding agent, all materials, labour charges, transportation of all materials to the worksite, ,tools and plant, labour welfare cess, GST, etc., complete

Concrete for Deck slab, Deck wall & Counter fort wall etc. Providing cast-in-situ Reinforced Cement Concrete of design mix of M40 grade of Cast in-situ for concrete in accordance with IS 456 (Latest Edition) using coarse aggregate from mainland quarry, mainland River sand confirming to Zone-III and 43 grade Ordinary Portland cement, adding approved silica fume ,plasticizer as per design mix in cast-in-situ for RCC Deck slab , Dock Wall , Counter fort Wall, Counter Bam in Expansion joint etc. as indicated in the drawing and as directed by EIC Costs: The rate quoted by the bidder shall include cost of cement, silica fume, plasticizer, mainland stone chips, mainland river sand, all labour charges for mixing, conveying, placing, consolidation, transportation charges of all materials to Work Site and running charges of batching plant, vibrator, all other equipment's, curing, tools and plant, Labour welfare cess, GST, etc, complete (The cost of steel shuttering, fabrication and fixing of steel reinforcement, which will be paid separately) Equipments: Mixer plant and all other tools and plants shall be arranged by the contractor at their own cost

Steel Reinforcement for Deck slab, Deck wall & Counter fort wall etc. Supply of steel of grade Fe 500D HSCRM / HCR / CRS or equivalent confirming to IS:1786 of required sizes for fabrication and fixing of reinforcement in Dock work as per the directions of EIC Costs: The rate quoted by the bidder shall include cost of steel rod, fabrication & fixing charges, handling charges, welding charges, cost of 18 SWG annealed binding wire, transportation charges for all materials to worksite, all labour charges, tools and plant, Labour welfare cess, GST, etc, complete (The reinforcement bars, laps & overlaps, development lengths, ties for dock work etc., will be measured & paid for).

Steel Shuttering for Deck slab, Deck wall & Counter fort wall etc. Steel centering and shuttering including strutting propping etc. and removal of form for : Dock wall, counter fort wall & counter beam etc., so as to give a fair faced and smooth concrete surface, strutting and propping etc., as directed by the EIC. Costs: The rate quoted by the bidder shall include cost of steel shuttering plate, bolt & nuts, props, scaffolding charges ,all labour charges, cost of transportation charges of all materials to work site and tools and plant, Labour welfare cess, GST, etc, complete.

Anchoring arrangement for Dock wall etc. Providing and fixing shear connectors with Hilti Injector Mortar HIT-RE 500 chemical or equivalent brand , by drilling and injectors injecting HIT-RE 500 chemical or equivalent brand till refusal and fixing of steel reinforcement 12mm dia, 16mm dia & 25 mm dia. Costs: The rate quoted by the bidder shall include cost of Hilti Injector Mortar HIT-RE 500 or equivalent brand, cost of drill bit, hire charges of drilling machine and Hilti Injector Mortar machine, all labour charges for drilling and cleaning holes, injecting mortar with injectors and fixing & placing of steel reinforcement in holes for anchorage, including transportation charges of all materials to work site , all cost of labour charges, tools and plant, Labour welfare cess, GST, etc, complete.

Anchoring 12 mm Dia Rods, including making 20mm Dia hole 400 mm depth

Anchoring 16 mm Dia Rods, including making 25 mm Dia hole 400 mm depth

Anchoring 25 mm Dia Rods, including making 35 mm Dia hole 250 mm depth

Cutting & Removal of Steel sheet pile. Cutting and removing the existing sheet piles of 600 mm width up to the required level as per the drawing and as directed by the EIC for execution of integration works. Costs: The rate quoted by the bidder shall include cost of machinery, all labour, equipment, scaffolding, transportation charges and disposal from site, tools and plant, Labour welfare cess, GST, etc, complete.

Existing Deck slab groove cutting for expansion joint. Cutting and removing the concrete of the existing deck slab of the old dry dock to form a groove of size 400 mm × 200 mm along the top of the old dry dock slab for an expansion joint for deck floor. Costs: The rate quoted by the bidder shall include cost of machinery, all labour, equipment, scaffolding, transportation charges and disposal of debris from site, tools and plant, Labour welfare cess, GST, etc, complete.

Joint filler for expansion joint. Providing 50mm thick hydro seal XL board Non-absorbent, semi-rigid, polyethylene joint filler conforming to the standard specifications of approved make for Dock wall etc Costs: The rate quoted by the bidder shall include cost of filler materials, all labour, equipment, scaffolding, transportation charges, tools and plant, Labour welfare cess, GST, etc, complete.

Sealant for expansion joint. Supplying and applying SubmerSeal / EmSeal of SIKA or equivalent conforming to the standard specifications of approved make for expansion joints of Dock Floor & wall etc Costs: The rate quoted by the bidder shall include cost of sealant materials, all labour, equipment, scaffolding, transportation charges, tools and plant, Labour welfare cess, GST, etc, complete.

Single layer LDPE sheet for expansion joint. Providing and laying single layer of LDPE sheet of 200 microns thickness conforming to the standard specifications of approved make under the counter beam at expansion joint of Dock Floor. Costs: The rate quoted by the bidder shall include cost of LDPE sheet & other materials, all labour, equipment, scaffolding, transportation charges, tools and plant, Labour welfare cess, GST, etc, complete.

Rain water pipe arrangement. Providing PVC 150 mm dia rain water pipe conforming to the standard specifications of approved make at the counter beam in the expansion joint as per the Drawing and as per the direction of EIC. Costs: The rate quoted by the bidder shall include cost of PVC pipe & other materials, all labour, fixing charges, equipment, scaffolding, transportation charges, tools and plant, Labour welfare cess, GST, etc, complete.

Dock wall expansion joint with SS plate Providing and fixing of 12 mm thick, 300 mm wide plates grade SS 304 on Dock side walls at expansion joints as per the drawing and as directed by the EIC. Costs: The rate quoted by the bidder shall include cost of all materials, all machinery, scaffolding, all labour, fixing charges, equipment, scaffolding, transportation charges, tools and plant, Labour welfare cess, GST, etc, complete.

Dock wall expansion joint with SS bolt & nuts Providing and fixing of grade SS 304 bolts and nuts, size 200 mm long & 20 mm dia @ 600 mm c/c spacing on the dock side wall of the new portion of Dry dock as per the drawing ad as directed by the EIC Costs: The rate quoted by the bidder shall include cost of all materials, fixing, fasteners, welding, including preparation of template, all machinery, scaffolding, transportation, all cost of labour charges, tools and plant, Labour welfare cess, GST, etc, complete.

Dismantling the existing end wall & other walls for restoring the dry dock to full operational condition. Dismantling the existing end wall, counter fort walls, beams, etc. of the old dry dock up to the required level including cutting of steel reinforcement without causing any damage to adjacent or supporting structures, with suitable safety arrangements and disposal of debris with a lead of 500 m of Dry Dock complex as directed by the EIC. Costs: The rate quoted by the bidder shall include cost of all machinery, labours, safety arrangement, scaffolding, transportation, removal of debris from work site, tools and plant, Labour welfare cess, GST, etc, complete. Equipments: All required tools and plants shall be arranged by the contractor at their own cost.

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