Paper Title:
Field Performance of a Deep Multi-Strutted Excavation in Hangzhou Soft Clays
  Abstract

A case history of a deep multi-strutted soft clay excavation in Hangzhou is presented in this paper. What makes it particular interest is its three characteristics: large scale, deep excavation and very soft clays. The excavated area was about 99750 square meters. The depth of excavation was 12.85 m. 4 m below the ground surface located about 24 m very soft soil clays. Wall deflections and ground settlements were measured and compared with similar case histories worldwide. It was shown that the maximum horizontal deformations of the excavation was very large which this excavation reached to 220 mm. “Creep” deformations occurred apparently during the curing of the bottom slab of the basement. The distributions of the surface settlements seemed to be parabolic, and the settlement influence zone could reach to a distance of more than 2H, where H is the final excavation depth. The ratio between the maximum ground settlement and the maximum horizontal deformation of the wall is about 0.6.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
2324-2327
DOI
10.4028/www.scientific.net/AMR.243-249.2324
Citation
H. W. Ying, Y. W. Yang, X. Y. Xie, "Field Performance of a Deep Multi-Strutted Excavation in Hangzhou Soft Clays", Advanced Materials Research, Vols. 243-249, pp. 2324-2327, 2011
Online since
May 2011
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Price
$32.00
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