Geo Technical Investigation
Performed by geotechnical engineers & engineering geologists to obtain information on the physical properties of soil earthworks and foundations for proposed structures.
Performed by geotechnical engineers & engineering geologists to obtain information on the physical properties of soil earthworks and foundations for proposed structures.
| Sr. No. | Particulars | Sample Size Required | Reference IS Code | Time Frame |
|---|---|---|---|---|
| 1 | Investigation of the site using verious soil explora | At actual requirement | 8 , IS 2720 , IS 2131 , IS 9143 , IS 8764 , I | As per work volume |
| Field density/ In-situ bulk Density | ||||
| 2 | FDT up to 3 locations | |||
| a) By Sand Replacement Method | In situ Test | IS 2720 : Part 28 : | 2 days | |
| b) By Core Cutter Method | IS 2720 : Part 29 : | 2 days | ||
| 3 | Field CBR (EXCLUDING DUMPER & LABOUR ARRANGMENT) | |||
| 4 | Moisture Content | 50kg | IS 2720 : Part 2 : | 2 days |
| 5 | Specific Gravity | IS 2720 : Part 3 : | 2 days | |
| 6 | Grain Size Analysis by Sieving | IS 2720 : Part 4 : | 2 days | |
| 7 | Free Swell Index | IS 2720 : Part 40 : | 3 days | |
| 8 | Atterberg's Limit's (LL & PL) & Plasticity Index | 10kg | IS 2720 : Part 5 : 1985 |
2 days |
| 9 | Proctor Compaction Test / MDD & OMC (Standard) | 35kg | IS 2720 : Part 7 : 1980 |
3 days |
| Proctor Compaction Test / MDD & OMC(Modified) | 35kg | IS 2720 : Part 8 : 1983 |
3 days | |
| 10 | Direct shear test (6X6X2.5cm) | 100kg | IS 2720:Part 13:198 | |
| a) Unconsolidated undrained | 4 days | |||
| b) Consolidated undrained | 64 days | |||
| c) Consolidated drained | 4 days | |||
| d) Additional each cycle | 4 days | |||
| 11 | Laboratory CBR | 50kg | S 2720 : Part 16 : 198 | |
| a) Soaked | 6 days | |||
| b) Unsoaked | 4 days | |||
| Sr. No. | Particulars | Sample Size Required | Reference IS Code | Time Frame |
|---|---|---|---|---|
| 1 | pH | 5 kg | IS 2720(26):1987 | 3 days |
| 2 | Sulphate | IS 2720(27):1977 | ||
| 3 | Chlorides | By Vogels book | ||
| 4 | Calcium Carbonates | IS 2720(23):1976 | ||
| 5 | Total Soluble Solides | IS 2720(21):1977 | ||
| 6 | Organic Matter | IS 2720(22):1972 |
| Sr. No. | Particulars | Sample Size Required | Reference IS Code | Testing Range |
|---|---|---|---|---|
| 1 | Particle Size analysis by Hydrometer | IS 2720(Part 4): 1985 | 2 µm to 75 µm | |
| 2 | Permeability by Constant head | IS-2720 (Part-17): 1986 | 0.001 to 0.0000001 | |
| 3 | Permeability by Falling Head | IS-2720 (Part-17): 1986 | 0.001 cm/s to 0.0000001 cm/s | |
| 4 | Triaxial Compression Test-UU - Angle of Internal Friction | IS 2720(Part 11): 1993 | 2 Degree to 40 Degree | |
| 5 | Triaxial Compression Test-UU– Cohesion |
IS 2720(Part 11): 1993 | 0.01 kg/cm² to 2.0 kg/cm² | |
| 6 | Unconfined Compression Strength of Soil | IS 2720 (Part 10): 1991 | 0.01 kg/cm² to 8 kg/cm2 | |
| 7 | Vane Shear Test Shear Strength |
IS 2720-30: 1980 | 0.078 kg/cm² to 1.26 kg/cm² |
| Sr. No. | Particulars | Sample Size Required | Reference IS Code | Testing Range |
|---|---|---|---|---|
| 1 | Brazilian Index | IS 10082: 1981 | 20 kg/cm² to 300 kg/cm² | |
| 2 | Dry Density | IS 13030: 1991 | 2 g/cc to 4 g/cc | |
| 3 | Modulus of Elasticity | IS 9221: 1979 | 0.001 kg/cm² to 0.0000001 kg/cm² | |
| 4 | Point load strength index | IS 8764: 1998 | 1 kg/cm² to 300 kg/cm² | |
| 5 | Poison's Ratio | IS 9221: 1979 | 0.01 to 0.30 | |
| 6 | Porosity | IS 13030: 1991 | 0.01 % to 25 % | |
| 7 | Specific Gravity | IS 2720(Part 3/sec 1) : 1980 | 1.6 to 4 | |
| 8 | Triaxial Compression Test-UU - Angle of Internal Friction | IS:13047 : 1991 | 20 Degree to 80 Degree | |
| 9 | Triaxial Compression Test-UU– Cohesion | IS:13047 : 1991 | 3 MPa to 45 Mpa | |
| 10 | Unconfined Compression Strength | IS 9143: 1979 | 10 kg/cm² to 4000 kg/cm² | |
| 11 | Water Absorption | IS 1124: 1974 | 0.01 % to 25 % | |
| 12 | Water Content | IS 13030: 1991 | 0.1 % to 25 % | |
| 13 | Petrographic Analysis | BS 12407: 2007 | Qualitative |
| Sr. No. | Particulars | Sample Size Required | Reference IS Code | Testing Range |
|---|---|---|---|---|
| 1 | Standard Penetration Test | IS 2131: 1981 | 1 to 100 | |
| 2 | Load Test On In-Situ Footing | IS 10042: 1981 | 5 T to 1000 T | |
| 3 | Static Pile Load Test | IS 2911 (Part 4): 2013 | 50 T to 2000 T | |
| 4 | Cyclic Pile Load Test | IS 2911 (Part 4): 2013 | 50 T to 2000 T | |
| 5 | Dynamic Pile Load Test | IRC 78: 2014 | 1 T to 1000 T | |
| 6 | Lateral Pile Load Test | IS 2911 (Part 4): 2013 | 1 T to 200 T | |
| 7 | Pile Pull Out Test | IS 2911 (Part 4): 2013 | 1 T to 200 T | |
| 8 | Anchor Pull out Test | IS 11309: 1985 | 5 T to 200 T | |
| 9 | In rock Single Packer & Double packer | IS 5529 (Part 2) : 2006 | 0 Lugeons to 100 Lugeons | |
| 10 | In soil Constant head & Falling head method | IS 5529 (Part 1) : 2013 | 0 cm/min to 100 cm/min | |
| 11 | Plate Load Test | IS 1888, IS 12070: 1982 | 5 T/m² to 400 T/m² | |
| 12 | Cyclic Plate Load | IS 5249: 1992 | 5 T/m² to 400 T/m² | |
| 13 | Electrical resistivity Test-2D | IS 15736: 2007 | Qualitative | |
| 14 | Electrical resistivity Test | IS 1892: 1979 | Qualitative | |
| 15 | Modulus Of Subgrade Reaction (K - Value Test) | IS 9214: 1979 | 3 kg/cm2/cm to 70kg/cm2/cm | |
| 16 | Pressuremeter test :Radial displacement | IS 12955 (Part 2) :1990 | 1 bar to 200 bar | |
| 17 | Stone Column Load Test | IS 15284 (Part 1): 2003 | 10 T to 300 T | |
| 18 | Bridge Load Test | IRCSP -51 : 2015 | 100 T to 2000 T | |
| 19 | Pile Integrity Test | ASTM D 5882: 2016 | Qualitative |