Towards the end of 2017, Pavai - TeampT JV began working on Mumbai Metro Line - 03. This phase of the metro project involves the construction of 27 under-ground stations at a depth of 20 to 28 m from ground level, to a cumulative length of 33, 500 m. Pavai Infra Geotech, a specialist ground anchor installation agency in association with TeampT, a specialist design consulting firm, acquired earth-retaining structural works in 6 underground stations, namely: BKC, Vidyanagari, SEEPZ Ramp, SEEPZ station, Marol Naka and Vidhan Bhavan. Design of pre-stressed retrievable rock anchors for several stations and TBM launching shaft locations has been completed. The challenge lies in meeting the stringent international standards used in India (BS) and the condition of sensitive working environments, keeping conscious of commercial parameters and practical aspects of execution to specification. This paper discusses the purpose, basic design, detailed design approaches and actual work implementation of pre-stressed ground anchors that are being provided at the Mumbai Metro Line - 03 Project by Pavai Infra Geotech TeampT JV.
Subjects: Earth Retaining Structures, Retrievable Rock Anchors, Pre-stressed
Author: Nagaraj Kumar B. V., Design & Technical Coordinator
Publisher: DFI