Citation

Tang YG, Kung GTC. Disaster Adv. 2012; 5(4): 332-340.

Copyright

(Copyright © 2012, Shankar Gargh)

DOI

unavailable

PMID

unavailable

Abstract

In urban area, the underground excavation is usually employed to construct the basement of high-rise buildings, subway system and other engineering requiring underground space. The damage to buildings adjacent to an excavation often occurs and consequently excavation has already become one of the man-made disasters in the city. Those tremendous man-made disasters usually cause inestimable loss and must be prevented as possible as engineers can. However, the damage of buildings adjacent to excavation is still occasionally observed, probably because of the uncertainty of analysis models. Input parameters required are not considered in the routine analyses. This study employs the random finite element method (RFEM) to estimate the braced wall deflection and then estimate the surface settlement through a simplified empirical model (the KJHH model). The analysis method developed in the present study enables a probabilistic assessment of the excavation-induced building damage potential. Finally, the analysis method is then validated with a well-documented case history of braced excavation. The results reveal that the developed model may be a useful tool for engineers to assess the reliability of design in the geotechnical excavation problem through evaluating the serviceability of adjacent buildings.