IGS offers a comprehensive range of Geotechnical services for Highways, Bridges, Railways, Power, Industrial and domestic sectors. These services includes field and laboratory testing including interpretation of results for design and recommendations about safe bearing capascity and type of foundations, design of embankments, slope stability, Ground improvement methods and instrumentation. The following are the specialized areas of activity:
- Geological and Geotechnical Investigation
- In – situ Rock mechanic Tests
- Geophysical Testing
- Construction material Survey
- Laboratory Testing
- Foundation Construction & testing
- Topographical and Contour Survey

Geotechnical investigation is an essential preliminary step for civil engineering design and construction works and primarily, the objects for conducting such investigations are as follows:
- Suitability - To assess the general suitability of the site;
- Design - To enable an adequate and economic design;
- Construction - To plan the most feasible method of construction, to foresee and provide against difficulties and delays that may arise during construction due to ground, groundwater.
The ground is naturally variable and often the nature of these variations is not known in advance. In order to evaluate properly the nature of the ground and groundwater and to achieve the objectives of the site investigation, it is essential that the work be planned, suitable methods be adopted, undertaken and supervised by experienced personnel.
In order to collect data and achieve the project objectives, geotechnical studies and site Investigations are performed. We comes in where such a site investigation is required and services projects pertaining to:
Geological and Geotechnical Investigation
- Drilling and Sampling ( Soil & Rock)
- Deep Drilling in rocks upto 300 m
- Bore Hole Logging
- Field Permeability Tests
- Standard Penetration Test
- Dynamic Cone Penetration Test
- Vane Shear Test
- Pressure meter Test (80 bar)
- Plate load test
- Footing load test
- In – situ shear tests
- Modulus of Sub – grade reaction ( K – Value)
Sampling
- Open Tube Sampling
- Single / Double / Triple Tube Core Barrels
- Undisturbed Sampling
- Water Sampling
- Split Spoon Sampling
Subsurface Sounding
- Static Cone Penetration Test
- Dynamic Cone Penetration Test
- Standard Penetration Test
Rock mechanic Tests
Rock mechanics is the theoretical and applied science of the mechanical behaviour of rock. Excessive rock failure must be avoided in order to preserve the stability of the structure, thats where we came to help you by providing:
- In – situ Shear test (Rock – Rock and Concrete Rock tests)
- Modulus of Deformation / Elasticity by Plate Load Test
- Footing load test
- Dilatometer tests (Upto 200 bar)
- Hydro fracture test
- Flat jack test
- Lugeon tests

Dilatometer test in Progress

In – situ shear test in Progress

Geophysical Services
Geophysics offers a one-of-a-kind view of the earth by detecting sub-surface conditions of physical property variations based on lateral and vertical mapping. These surveys, conducted remotely using non-invasive technologies, provide a rapid identification of geologic layering and structure and the location and magnitude of human impact on the subsurface. Geophysical studies also determine the nature and extent of potential hazards and the physical parameters that are vital to successful engineering and construction activities.
We provide the full complement of geophysical expertise, backed by today’s technologies to best serve our clients’ needs. Our combination of state-of-the-art instrumentation and analytical software, with decades of experience, ensures that only the highest quality, most reliable data will be produced.
Our Geophysical Services Include:
- Seismic refraction tests
- Cross hole, up hole and down hole tests
- Vertical Electric Sounding (VES)
- GPR Survey
Construction Material Survey
Construction material survey aims to access the availability of requisite quantities of construction materials of appropriate quality for use in construction of various components of the projects.
Our expertise includes the following:
- Construction Materials Survey for Hydropower and Irrigation Development Projects
- Identification and selection of queries
- Setting up of field quality control laboratories
- Laboratory testing of coarse and fine aggregates
- Water testing
- Petro graphic studies
- Lugeon tests

A View of Sample INSQ-01-01 Being Collected from Parochu –I (INSQ-1) Natural Sand Quarry

A View of Sample No. INRQ-05-02 Being Collected from the
Jongtelum Chu Valley Extension (INRQ-5) Quarry

Laboratory testing in progress on Rock Cores

Laboratory Testing
IGS has full-fledged geotechnical laboratory facilities for conducting tests on soil, rock and construction material. A dedicated team of engineers and technician is committed to providing reliable and accurate test results. Our laboratory is accredited to the ISO: 9001 - 2008.
We are carrying out the following tests:
Soil Samples
- Gradation (Sieve & Hydrometer Analysis)
- Atterberg Limit
- Density & Moisture Content
- Direct shear test
- Consolidation
- Permeability
- Proctor compaction test (Standard & Modified)
- California Bearing Ratio (CBR)
- Uniaxial compressive strength
- Triaxial compression test
- Relative Density tests
- Chemical analysis of soil & water samples
Rock Samples
- Uniaxial compressive strength
- Point load index strength
- Elastic modulus
- Density
- Porosity
- Water absorption
Aggregate
- Sieve analysis
- Elongation index
- Flakiness index
- Specific gravity
- Crushing Value
- Impact value

Foundation Construction & testing
Construction of Piles
- Bored Cast in – situ RCC piles (300 mm to 1200 mm diameter )
- Under- reamed Piles
Initial and Routine pile load tests
- Verttical
- Uplift
- Lateral

Topographical and Contour Survey
IGS moves with the technologically advanced – DGPS, Electronic Total Stations, digital levels connected to high-end Computing Devices for conducting surveys and processing results. The use of this technology ensures Precise and highly accurate results.
The scope of services includes:
- Topographic Survey
- Land Contour Survey
- Property Survey
- Route Alignment Surveys