Correlating Micro-Mineralogy With Seismic Optimization & Structural Response Of Transmission Infrastructure On Geopolymer-Stabilized Subgrades

11 May

Authors: Dr. Kamalkishor M. Sharma, Shashikant R. Yadav, Monika J. Atole

Abstract: The increasing demand for electrical energy necessitates the development of economical and lightweight transmission line towers. However, constructing these lifeline structures on Black Cotton Soil (BCS) poses significant civil engineering challenges due to the soil's expansive nature and high montmorillonite content, which leads to unequal foundation settlement and low bearing capacity. This research presents a dual-phase approach: first, stabilizing the problematic BCS using Construction and Demolition (C&D) waste-based geopolymers , and second, evaluating the structural response of a 40 m transmission tower with varying bracing patterns (single, double, and knee) resting on this stabilized stratum. Utilizing STAAD.Pro software for dynamic structural analysis and advanced micro-mineralogical testing (XRD analysis) for soil evaluation , the study aims to achieve the most stable, economical tower configuration and a resilient foundation.