Paper Title:
Stability and Safety Analysis of Braced Excavation for Subway Station during Construction under the Condition of Side Slope
  Abstract

The main purpose of this paper is to analyze the stability and safety problems of braced excavation enclosure, surrounding strata and side slope during construction of Shangshuijing station in Shenzhen Metro Line 5. The paper presents stability discrimination of the braced excavation and side slope by discussing their force and deformation regularity using Flac3D, and puts forward some project proposals about its design and construction. The results show that: (1) The stability coefficient of braced excavation enclosure becomes smaller because of biasing impact of side slope, but this project can meet the stability requirements, (2) The biasing impact of side slope has little influence on deformation of surrounding strata starting on the other side of braced excavation without slope, and (3) To ensure construction safety under condition of side slope, the braced excavation should be excavated starting from the zone far from the side slope, steel pipe can be used as assistant reinforcement at the corner of side slope if necessary.

  Info
Periodical
Chapter
Chapter 6: Advanced Construction Materials
Edited by
Xuejun Zhou
Pages
1166-1170
DOI
10.4028/www.scientific.net/AMM.99-100.1166
Citation
Y. H. Li, P. Liu, J. Q. Liu, X. F. Han, "Stability and Safety Analysis of Braced Excavation for Subway Station during Construction under the Condition of Side Slope", Applied Mechanics and Materials, Vols. 99-100, pp. 1166-1170, 2011
Online since
September 2011
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Price
$32.00
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