Detailed Engineering Survey, Topographical Survey and Geotechnical Investigation Survey Works for proposed re-alignment of 8.625 inch OD Guwahati Siliguri Product Pipeline (GSPL) across Beki River

Amount

GSPL-Beki River - Survey Works

"Ground Penetrating RADAR Survey Carrying out subsurface utility survey along the proposed pipeline route and/ or as specified by Engineer-In-Charge for 5 m corridor using Ground Penetrating Radar (GPR) for depth upto 5m below the existing ground level to locate and identify all existing undergro und utilities/buried objects including but not limited to pipelines, sewers, conduits, cables, drains, manholes, appurtenances etc i n the proposed corridor along with location, DGPS coordinates, depth, shape and dimensional details of utilities. Four (4) Copies of Report and Drawings incorporating all collected datas shall be submitted as per scope of work and direction of the Engineer-in-char ge. Scale of Drawing shall be Planimetry (X Axis 1:1000, Y Axis 1:100), Longitudinal Section (Z Axis 1:100) and Transverse Section a t critical location. Note: 1.Survey Agency for execution of GPR Survey Work to be engaged by the Contractor shall be submitted for approval of Owner/ Cou nsulatant prior to start of work. 2. GPR Work shall be carried in presence of Contractor Representative, EPMC & TPI."

Carrying out detailed engineering survey of the pipeline route for laying cross country pipeline as per the detailed scope of work e numerated in Special Conditions of Contract and specifications of the tender document and direction of Site Engineer/Engineer-in-Cha rge including all labour, material, etc., complete in all respect.

b) Along existing pipeline route

"Hydrological Data Generation Hydrological data such as High Flood Level (HFL), maximum floods discharge (Q), Av. velocity of flow, extent of flood plain etc. bas ed on previous floods, of the rivers en-route, assessment of scour depth and flow pattern of rivers in the past 10 years. Relevant d etails shall be collected from the concerned Irrigation Dept. office or other relevant sources. Other data based on hydrological sur vey of river crossings, as per details mentioned earlier, for design and installation of such crossings."

"Obtaining Approvals / Permissions Obtaining approvals / permissions from appropriate respective State / National and other Statutory Authorities for the various pipel ine crossings enroute such as National Highways, State Highways, other roads, rail, river, canal / drain crossings or any other util ity crossings, Forest permission, etc. as per detailed scope of work specified in special conditions of contract and specifications of the tender document and direction of Site Engineer / Engineer-in-Charge, complete in all respect. Note: 1. Payment shall be made for obtaining each permission. Cluster of crossings needing permission from the same Authority, shall be co nsidered as one permission for the purpose of payment. 2. For Railway crossing, each crossing shall be treated as separate and payment shall be made on unit basis. "

River crossings under each authority

Carrying out contour survey and developing the contour map with level at 10 M c/c and contours at 0.5 M interval including staking a nd marking of plot boundary and development of drawings as per specification and direction of Engineer-in-Charge complete in all res pects. Note: This also includes setting/fixing and construction of Permanent Reference Pillar (Bench Mark) with erection of insert p late, engraving coordinates and levels etc. all complete as per direction of Engineer-in-charge. Note: The item also includes furnis hing of High Flood Level of the area.

"Deployment & Erection of Boring craft & Rig in each borehole location as per specifications, SCC, Scope of work and direction of En gineer in-charge. Note: i) Boring depth shall be measured from Ground Level/River Bed level. Depth of actual soil strata bored / rock strata drilled shall be considered for payment. ii) Mere deployment of rig/ boring/drilling in river bed will not be considered as deployment / boring/drilling ""in water"" unless it is actually carried out in water. iii) Rate shall be inclusive of grouting back the boreholes as specified including cost for material, equipments and labour. iv) Core recovery >25 % shall be designated as rock v) Recording of rock core characterstics shall be as per specification."

In Land

In Water

"Conducting Boring at Site in soil, Depth from GL/Bed level as per specifications, SCC, Scope of work and direction of Engineer in-c harge. Note: i) Boring depth shall be measured from Ground Level/River Bed level. Depth of actual soil strata bored / rock strata drilled shall be considered for payment. ii) Mere deployment of rig/ boring/drilling in river bed will not be considered as deployment / boring/drilling ""in water"" unless it is actually carried out in water. iii) Rate shall be inclusive of grouting back the boreholes as specified including cost for material, equipments and labour. iv) Core recovery >25 % shall be designated as rock v) Recording of rock core characterstics shall be as per specification."

In Land

In Water

"Drilling through rock with Nx size double tube core barrel upto a depth as specified in SCC below GL/bed level using TC bit/diamon d bit as per specifications, SCC, Scope of work and direction of Engineer in-charge. Note: i) Boring depth shall be measured from Ground Level/River Bed level. Depth of actual soil strata bored / rock strata drilled shall be considered for payment. ii) Mere deployment of rig/ boring/drilling in river bed will not be considered as deployment / boring/drilling ""in water"" unless it is actually carried out in water. iii) Rate shall be inclusive of grouting back the boreholes as specified including cost for material, equipments and labour. iv) Core recovery >25 % shall be designated as rock v) Recording of rock core characterstics shall be as per specification."

In Land

In Water

Standard Peneteration Test at different depth as per specifications,SCC, Scope of work and direction of Engineer in-charge.

Collection of undisturbed samples at different depth as per specifications, SCC, Scope of work and direction of Engineer in-charge.

Collection of disturbed samples at different depth as per specifications, SCC, Scope of work and direction of Engineer in-charge.

Laboratory Tests

(i) Particle Size Distribution

(a) Sieve analysis.

(b) Hydrometer analysis

(ii) Atterberg limits.

(iii) Natural moisture content.

(iv) Bulk density of soil

(v) Dry density of soil

(vi) Specific Gravity

(vii) Direct Shear Test

(viii) Triaxial Shear Test (UD)

(ix) Permeability Test

(x) Consolidation Test

(xi) Unconfined Compression Test

(xii) Swelling Pressure Test

(xiii) Free Swell Index Test

(xiv) Shrinkage Limit Test

(xv) Uniaxial compressive strength of rock sample

(xvi) Specific gravity test of rock sample

Preparation and Submission of Soil investigation report for HDD locations & stations including transfering the route alignment at si te for fixing of bore hole points, preparation and submission of crossing profile of rivers, canals and water bodies, preparation an d submission of plans and drawings, hydrological data of rivers, canals and water bodies all complete as per specifications, SCC, Scope of work and direction of Engineer in-charge.

S S Solution

Superintendence Co of India Pvt Ltd

City Engineering Testing Lab

S S Solution

Superintendence Co of India Pvt Ltd

City Engineering Testing Lab