All successful constructions begin not with the first brick but with a proper understanding of the soil beneath. At BS Structural Innovation Company, we have understood this fact through our years of experience in delivering successful projects across Kolkata and West Bengal. Whether you are looking for a new industrial setup in Kolkata or a high-rise in West Bengal, our foundation for success begins beneath the surface.
What is Soil Investigation?
Soil investigation is a process of thorough investigation of the soil beneath to understand its properties before commencing any construction. It is a vital process that requires drilling boreholes and sending samples for testing to understand the properties of the soil beneath.
Why Soil Investigation Cannot Be Compromised?
- Designing a Foundation for a Building
The foundation of a building is designed to support the entire weight of a structure. However, different types of soil behave differently. While clay soil can support a lot of weight, sand can hardly support any. Similarly, silt and rock can support varying weights. However, a proper soil investigation helps in understanding how much weight a particular type of soil can bear. Without a proper understanding of soil properties, engineers are merely flying blind.
- Cost Optimization
Soil investigation can help in determining the depth of piles and caissons required for a foundation. This can help in proper estimation of costs right from the beginning of a project.
- Identifying Hidden Hazards
During the soil study we also see to it that we identify which are the key subsurface issues like high water tables, large expanses of expansive soils, liquefaction, and soil contamination. In which we also conduct tests on the soil to determine what issues we may face. These include liquefaction of the soil, which can occur in the event of an earthquake, or moisture-related problems through the walls of the basement or the floors. By identifying these hazards early on, the engineers can then design the appropriate corrective measures at the design stage rather than having to correct problems at the construction stage.
- Regulatory Compliance and Approvals
In most cases, the local government requires that detailed reports on the geotechnical properties of the land are submitted for approval. By carrying out the soil investigation process, the engineers can then obtain the required approvals from the local government. This ensures that the firm complies with the local building regulations.
Key Soil Parameters We Analyze
The soil investigation process carried out by the BS Structural Innovation Company involves an in-depth analysis of the following key parameters:
Bearing Capacity:
The amount of weight that the soil can carry without failing
Soil Composition:
The percentage of various components which include sand, clay, silt and the like.
Moisture Content:
The moisture content in the soil.
Permeability:
Soil’s water drainage capacity.
Shear Strength:
The ability of the soil to resist erosion, particularly on sloping land
Compaction Characteristics:
The ability of the soil to compact
The Investigation Process
The process of carrying out the soil investigation involves the expertise of qualified engineers. The process should start at the design stage, preferably prior to the purchase of the land. This involves an in-depth analysis of the data collected from the land. The engineers then use specialized drilling equipment for the investigation. The depth of the drilling depends on the height of the building. In the great majority of cases it is to a depth of 100 feet or more for skyscrapers. We drill until we hit the bedrock. The process of analysing the data collected from the drilling process takes about a few weeks. In cases where the construction involves heavy structures such as bridges, the exploration of the land is more detailed.
Conclusion
The age-old adage in construction is that what you don’t know can hurt you. However, in reality, soil investigation is a tool that can turn uncertainty into engineering certainty. Hence, before you begin your next project, consider investing in a comprehensive soil investigation. It is not a cost; it is an insurance for your structure’s future.
At BS Structural Innovation Company, soil investigation is not just a mere formality that needs to be fulfilled; it is an integral part of our engineering ideology. With an experience of over 15 years in working on various projects ranging from Techno India University’s Smart City project to industrial structures and high-rise buildings, we understand how a proper soil investigation is crucial for the success of a project.
Poor soil conditions are a major cause of foundation failures and other problems in buildings that could have been avoided had proper site investigation been done. Our turnkey solutions begin with a proper soil investigation to ensure that every building we design is built on solid ground—both literally and metaphorically.