Publication Abstract

Proceedings-DFI-India 2016: 6th Conference on Deep Foundation Technologies for Infrastructure Development in India, (DFI)

Deep Excavation for Loop Pit
Manos De, Tata Consulting Engineers Limited, Jamshedpur, Jharkhand, India, Pathik Deb Mallik, Tata Steel Processing, Distribution Limited, Kolkata, West Bengal, India, Shyamal K. Mitra, S.K.Mitra & Associates, Kolkata, West Bengal, India, Shuvranshu Rout, and Rajiv Kishore, Tata Consulting Engineers Limited, Jamshedpur, Jharkhand, India

This paper presents a case study on the design and construction of a deep underground pit structure constructed inside almost a century old existing plant building. The complexity and challenge for the design and construction lay in executing the work in a difficult subsoil condition especially the presence of deep mica schist. The limited space availability in the existing plant for construction work without hampering regular production in other adjoining areas of the plant made the execution more challenging. Experience with difficult subsoil and proximity to old foundations entailed a non-conventional engineering approach while ensuring complete safety in spite of maintaining the normal operation.

 article #2230; publication #1020 (INDIA-2016)