Macro-level Assessment of Impacts at Land–Water Interface of a Canal Bank: A Structural Stability Approach
摘要
Mining of atomic minerals is a crucial activity that finds its application in various industries, including the strategic sector. This study analyses a situation where mining activity close to the canal bank (man-made water body) designated as National Waterway-3 (Kottapuram to Kollam, Kerala) affects the bank’s structural stability. The canal is 2.4 km long with an average width and depth of 30 m and 4 m, respectively. The mining operation involves HEMM (Heavy Earth Moving Machinery), heavy equipment, personnel, etc., and the stability of the bank may be impacted by static and dynamic loads as well as water pressure toward the bank. As the cross-section of this land-aqua configuration is an immediate interaction of soil and water, the hydrostatic pressure from both entities was computed at different depths. It is estimated that the static water pressure towards the soil is 39.24 kN/m2; from the soil, it is 69.32 kN/m2 at a depth of 4 m. Littoral drifts and horizontal thrusts will also exert pressure on the canal banks, making them prone to collapse. The paper discusses structural stability from the perspective of near-water mining, paving the way for policy-makers and competent authorities to develop policies and guidelines. Overall, the paper provides a glimpse of mining activity up to the canal bank and discusses measures to maintain structural stability.