Topography Survey And Geotechnical Investigation Works Of Epcm-4 Package For Cbr Project Of Chennai Petroleum Corporation Limited (Cpcl), India Topography Survey And Geotechnical Investigation Works Of Epcm-4 Package For Cbr Project Of Chennai Petroleum Corporation Limited (Cpcl), India , A. Topography Survey , Conducting Topographic Survey Of The Specified Areas, Locating All The Prime Features As Given In The Technical Specifications, Executing All Field Work With Spot Levels At5mgrids, Plotting The Contour Survey Map With Contours At 0.5M Intervals, Establishing The Boundaries, Clearing Of Bushes Etc., As Required And Furnishing The Necessarydrawings In Soft As Well As Hard Copies All As Per Specifications Etc., Complete And As Directed By The Engineer. , Establishing And Constructing Grid And Bench Mark Pillars As Per Drawings Including Excavation, Back Filling, Materials, Labour Etc. Complete. , Construction Of Rcc (1:1.5:3) Gridpillars (450Mmx450mm) With 300Mm Above Ground & Min 600Mm Below Ground With 150 Thick Pcc Spaced In A Grid Of 100 X 100M And With 100 Sq. 8 Thk Ms Plate On Top, Including Excavation, Back Filling, All Materials, Labour Etc. Complete , Construction Of Rcc (1:1.5:3) Bench Mark Pillars (690Mmx690mm) With 600Mm Above Ground & Min 450Mm Below Ground Resting On A Foundation (690Mmx690mm X300mm) With 150 Thick Pcc Below That And With 100 Sq. 8 Thk Ms Plate On Top Along With 25Mm Dia Hemispherical Steel Ball Welded On It, Including Excavation, Back Filling, All Materials, Labour Etc. Complete , Establishing And Constructing Boundary / Alignment Pillars (450Mmx450mm) With 300Mm Above Ground & Min 850Mm Below Ground With 150 Thick Pcc Spaced In A Grid Of 100 X 100M And With 100 Sq. 8 Thk Ms Plate On Top, Including Excavation, Back Filling, All Materials, Labour Etc. Complete , Precision Levelling For Establishing The Bench Mark Level At Site By Carrying Levels From The Nearest Gts Bench Mark Or Already Established Bench Mark At Site Adopting Double Circuit Levelling. (Rate Shall Be On The Basis Of Distance Measured One Way Only). , B. Geotechnical Investigation On Land , Survey Work For Establishing Coordinates And Rl At All Test Location With Reference To Nearby Benchmark Including Deployment O Survey Instrument And Personnel. , Boring 150 Mm Dia. Through All Kinds Of Soils Including Laterite Upto Refusal (N>100) With Adequate / Suitable Equipment For Depths Measured Below Existing Ground Level Including Backfilling Of Borehole Log With 1:1 Cement Grout As Per Specification: , For Depths Of 0 – 10M , For Depths Of 10M – 20M , For Depths Of 20M – 30M , Boring Through Hard Laterite / Weathered Rock And Soft (Disintegrated) Rock Using Nx Size Tungsten Carbide Bit, Diamond Bit Using Double Tube Core Barrel With Suitable Core Catcher And Collecting The Rock Cores In Wooden Boxes In A Proper Sequence. , Conducting Static Cone Penetration Tests At Locations As Specified In Drawing As Per Is 4968 (Part Iii) With Mechanical Driven Equipment Up To Depths Specified Or Refusal Whichever Is First , Conducting Standard Penetration Tests And Collecting The Disturbed Samples. Number And Frequency Of Testing / Sampling Shall Be As Per Technical Specifications , Obtaining 90Mm Diameter 450Mm Long Undisturbed Samples From Bore Holes And Sealing The Container Number And Frequency Of Testing / Sampling Shall Be As Per Technical Specifications , Excavating Trial Pits Of Size 1.5M X 1.5M And 3M Deep (Pit) Or Rock Level Whichever Is Earlier, At Locations As Specified Including Conducting Pocket Penetrometer Tests In Cohesive Soils, With Necessary Shoring, Dewatering As Required, Etc, Field Density Tests, Collecting Bulk Disturbed Samples From Test Pits And Trial Pits. And Backfilling Of Trial Pits With Proper Compaction By The Excavated Material Complete. , Carrying Out Static Plate Load Test On A Plate Size Of Min. 600 Mm Square / 600 Mm Diameter Rigid Plate At 3M Depth Including Excavation And Backfilling, Providing Kentledge, With Necessary Shoring, Dewatering As Required, Etc. (Note:The Test Shall Be Conducted At 3M Depth Or Or Refusal To Manual/Light Machine Excavation Using A Square Plate Size Of Min. 600Mm Upto A Loading Intensity Of 100T/M2 Or 25Mm Settlement Of Plate Or Shear Failure Whichever Is Encountered Earlier.) , Carrying Out Field Cbr Tests At Various Locations, And Depth, All Complete As Per Specifications And Directions Of The Engineer , For Soaked Samples , For Unsoaked Samples , Carrying Out Electrical Resistivity Tests As Per Is 3043 By Wenner’S Method In 8 Directions , Carrying Out Field Permeability Test In Separate Boreholes In Overburden At 5M Depth At Specified Locations By Falling Head Or Constant Head Method As Per Is: 5529. (Excluding The Cost Of Boring) , Carrying Out Downhole Seismic Test In Predrilled Holes Up To Minimum Depth Of 25 M , Obtaining Undisturbed Samples From All Trial Pits Including Numbering, Specifying The Depth At Which It Is Collected And Sealing The Same. , Ii. Laboratory Tests , Grain Size Analysis: , Conducting Sieve Analysis On Soil Samples As Specified , Conducting Hydrometer Analysis On Soil Samples As Specified , Conducting Liquid Limit, Plastic Limit And Plasticity Index On Soil Samples As Specified , Conducting Specific Gravity And Void Ratio On Soil Samples As Specified , Conducting Bulk Density & Dry Density On Soil Samples As Specified , Conducting Natural Water Content On Soil Samples As Specified , Conducting Unconfined Compressive Strength On Soil Samples As Specified , Conducting Direct Shear Test On Soil Samples As Specified , Conducting Free Swell Index Test & Swell Pressure Test In Clayey Samples As Specified , Triaxial Compressive Strength: , Conducting Unconsolidated Undrained Test On Soil Samples As Specified , Conducting Consolidated Undrained Test On Soil Samples As Specified , Moisture-Density Relations For, , Conducting Standard Proctor/Equivalent Is Test On Soil Samples As Specified , Conducting Modified Proctor Density Test On Soil Samples As Specified , Chemical Analysis Of Soil Including Sulphates, Chlorides, Ph Value, Carbonates, Nitrates, Etc. , Chemical Analysis On 2:1 Water: Soil Extract Of The Samples Giving So3 Content Only. , Conducting Point Load Strength Index Test On Rock Core As Per Is: 8764 With Atleast 7 Days Saturation , Consolidation Test For Determination Of Consolidation Properties, Including Preconsolidation Pressure On Undisturbed Clay Samples , Iii. Report , Preparation And Submission Of Three Copies Of Draft Report And Six Copies Of Final Report Of Geotechnical Investigations And Foundation Recommendations. (No Additional Compensation Is Payable By The Owner For Any Expenses Incurred By The Contractor For Travel, Etc. Or For Meetings / Discussions With Owner / Consultants)
