Konnagar, W.B, India
+91 9433 139 584

GeoTechnical Investigation


Welcome to B. S. GEOTECH PRIVATE LIMITED – Your Trusted Partner in Geotechnical Investigation

At B. S. GEOTECH PRIVATE LIMITED, we bring excellence to geotechnical investigation work. Headquartered in West Bengal, India, our NABL-accredited soil testing lab ensures the highest quality standards, adhering to relevant Indian standard codes.

Our Geotechnical Investigation Services

Field Works

Standard Penetration Test (SPT)

Our skilled team conducts the Standard Penetration Test, a crucial step in understanding soil properties for construction projects. We analyze the soil resistance encountered by a standard sampler driven by a standard weight.

Dynamic Cone Penetration Test (DCPT)

B. S. GEOTECH PRIVATE LIMITED employs the Dynamic Cone Penetration Test to evaluate soil strength in-situ. This test provides valuable data for foundation design and construction projects.

Plate Load Test

Our Plate Load Test assesses the bearing capacity of soil beneath foundations. With precision and accuracy, we determine the load-carrying capacity to ensure the stability of your structures.

Earth Resistivity Test

Understanding the electrical properties of the soil is vital for designing effective grounding systems. Our Earth Resistivity Test helps in ensuring the safety and functionality of your electrical installations.

Block Vibration Test

For projects sensitive to vibrations, our Block Vibration Test measures ground vibrations to mitigate potential impacts on nearby structures.

Wash Boring, Shell and Auger Boring, Percussion Drilling

We employ various drilling methods like Wash Boring, Shell and Auger Boring, and Percussion Drilling to retrieve soil samples for thorough analysis.

Lab Tests

Soil Testing

Our NABL-accredited soil testing lab conducts comprehensive tests on soil, including but not limited to moisture content, grain size distribution, and Atterberg limits. We ensure compliance with Indian standard codes for accurate and reliable results.

Sieve Analysis

Our lab employs sieve analysis to determine the particle size distribution of soil. This crucial test aids in understanding the soil’s engineering properties, ensuring accurate classification for construction planning.

Hydrometer Analysis

Hydrometer analysis is used to assess the finer fractions of soil. This test provides insights into soil texture and helps in designing foundations with optimal bearing capacity.

Core Cutter Test

The core cutter test measures in-situ soil density, providing essential data for compaction control in construction projects. It ensures the stability and longevity of structures.

Specific Gravity Test

Determining the specific gravity of soil particles is vital for calculating various engineering properties. Our accurate specific gravity tests aid in precise material characterization.

Swelling Properties

Understanding soil swelling properties is crucial for projects susceptible to ground movements. Our testing evaluates soil behavior, ensuring proper engineering solutions to counteract swelling.

Atterberg Limits

Atterberg limits define the critical water content levels of soil. Our tests determine the liquid limit, plastic limit, and plasticity index, guiding effective soil classification and foundation design.

Unconfined Compressive Test

The unconfined compressive test assesses soil strength under axial loading. This data is essential for evaluating the stability of foundations and slopes in construction projects.

Triaxial Test

Our lab conducts triaxial tests to analyze soil shear strength under various stress conditions. This information is crucial for designing structures in geotechnically challenging environments.

Direct Shear Test

Direct shear tests determine the shear strength parameters of soil. This helps in understanding soil behavior under different loading conditions, aiding in foundation design and slope stability analysis.

Consolidation Test

Consolidation tests evaluate soil settlement characteristics under applied loads. This information is vital for predicting settlement and ensuring the stability of structures over time.

Permeability Test

Our permeability tests assess the ability of soil to transmit water. This data is critical for drainage design, groundwater modeling, and ensuring the long-term stability of construction projects.

Rock Testing

Understanding the strength and characteristics of rock formations is essential for construction planning. Our lab performs a range of rock tests in accordance with relevant standards.


Our rock testing includes porosity assessments, measuring the void spaces within rock structures. Understanding porosity aids in determining the rock’s ability to store and transmit fluids, crucial information for reservoir and construction projects.

Water Absorption

Determining the water absorption capacity of rocks is essential for assessing durability and weathering resistance. Our tests provide valuable insights into the rock’s response to environmental conditions, ensuring reliable construction materials.


Rock density testing helps in characterizing the mass of rock per unit volume. This information is vital for assessing the stability and load-bearing capacity of rock formations in construction and engineering projects.

Crushing Strength

Crushing strength tests evaluate the ability of rocks to withstand applied loads. This data is crucial for designing foundations and structures, ensuring that rock materials can withstand the required stress levels.

Point Load Test

The point load test assesses the strength of rocks under point loading conditions. This information aids in understanding rock behavior and is valuable for predicting rock performance in construction and excavation projects.

Slake Durability

Slake durability tests measure the disintegration resistance of rocks when exposed to moisture. This data is crucial for evaluating the long-term stability and durability of rock formations in various environmental conditions.

Hardness Test

Our hardness tests determine the resistance of rocks to abrasion and wear. This information is essential for selecting suitable rock materials for construction, ensuring longevity and performance in challenging environments.

Water Testing

Ensuring the quality of water sources is paramount. Our water testing services analyze various parameters to meet the required standards, providing valuable insights for your projects.

Water Testing

pH Level

Our water testing services include assessing the pH level, a crucial parameter indicating the acidity or alkalinity of water. Understanding pH is essential for ensuring water compatibility with various applications, from industrial processes to drinking water standards.

Sulphate Content

Sulphate analysis is performed to determine the concentration of sulphates in water. This parameter is critical for assessing water quality, as high sulphate levels can impact the taste, odor, and safety of water for consumption.

Chloride Concentration

Chloride testing is conducted to measure the chloride ion concentration in water. This parameter is essential for evaluating water quality, especially in areas where chloride levels can impact corrosion in industrial processes and affect the taste of drinking water.

Total Dissolved Solids (TDS)

Our water testing includes assessing TDS levels, representing the total amount of dissolved substances in water. Monitoring TDS is crucial for ensuring water quality compliance in diverse applications, including agriculture, industry, and domestic use.

Other Parameters per IS Code 3043

Our comprehensive water testing complies with IS Code 3043 standards, encompassing parameters such as alkalinity, hardness, calcium, magnesium, iron, manganese, fluoride, nitrate, nitrite, silica, and more. Adhering to these standards ensures accurate and reliable results for diverse water quality assessments.

Analysis and Report Preparation

Our expertise goes beyond data collection. We specialize in the analysis and preparation of detailed reports. By deriving load capacities based on soil stratum, we help you make informed decisions for various foundation types.

Isolated Footing

Isolated footing is a common foundation type designed to support a single column. It transfers the load directly to the soil beneath, providing stability for structures like individual columns or pillars. Ideal for small to medium-sized structures, isolated footings ensure even weight distribution, preventing uneven settlement.

Strip Footing

Strip footing, or continuous footing, is a foundation type that supports a row of columns or a load-bearing wall. It spreads the load over a wider area, promoting stability. Suitable for structures with closely spaced columns, strip footings are cost-effective and efficient, distributing loads evenly to prevent soil settling issues.

Raft Footing

Raft footing, also known as mat foundation, is a reinforced concrete slab that supports the entire structure’s load. Ideal for areas with weak or variable soil, raft footings prevent differential settlement, ensuring uniform support. This foundation type is cost-effective and minimizes the risk of structural damage.

Pile Foundation

Pile foundations are used in challenging soil conditions or when a structure requires deeper support. Piles, made of materials like concrete or steel, are driven into the ground to bear the load. This foundation type is effective in areas with unstable soil, providing enhanced stability and preventing subsidence.

Well Foundation

Well foundations are commonly employed in bridge construction, particularly in water bodies. These foundations involve sinking a large well into the riverbed or seabed, excavating material, and filling it with concrete. Well foundations offer stability in aquatic environments, ensuring structural integrity and resistance to water forces.

Contact us today to ensure a solid foundation for your project’s success!