- Time effect on ground settlement due to braced excavation in soft clay
- N.N. Som ; A.K. Gupta
- Book Title / Journal: Underground Construction in Soft Ground, Fujita & Kusakabe (eds), Balkema, Rotterdam. ISBN 90 54 10 536 4
- Year: 1995
- Keywords: soft clays ; ground settlements ; braced excavations
- IS: The influence of time on ground settlement for braced excavation in soft clay has been studied from field measurements of ground settlement along the Calcutta metro alignment. Additional ground settlement occurs when an excavation is kept open for long periods of time. Further, the rate of excavation seems to have important effect on the ground settlement profile. The data emphasize the need for rapid construction of underground facilities, once the final cut level is reached, to avoid undesirable ground settlement and consequent damage to adjacent structures.