Soil investigation is a critical step in the planning and construction of overhead transmission lines (OHTLs). It involves analyzing the soil properties at proposed tower foundation sites to ensure structural stability and safety. Proper soil investigation helps engineers determine the soil bearing capacity, type, moisture content, and potential issues like erosion or settlement. This information guides the design of suitable foundations—whether shallow or deep—and helps avoid costly failures or delays. In OHTL projects, detailed soil reports enable optimized foundation design tailored to local ground conditions, ensuring the transmission line’s long-term reliability and durability.
