Affiliation:
1. Northeastern University
Abstract
The excavation of foundation pit will change the initial stress state in surrounding soils, which induce the superimposed stress and uneven settlement to the adjacent existing tunnels. Based on the pit excavation engineering in Shenyang, which sits atop the existing tunnels, the risk factors and failure type of shield segment lining were studied through risk analysis theory. According to the uncertainty and spatial variability of soil parameters, the risk accident of existing tunnel was calculated by means of stochastic finite element which is combined Monte Carlo simulation with FEM. The risk of existing tunnel during the pit excavation stage was evaluated respectively under multi-failure patterns. The framework is used to estimate and minimize risks at pit excavation engineering in Shenyang.
Publisher
Trans Tech Publications, Ltd.
Reference7 articles.
1. Z.G. ZHANG, M.S. HUANG and W.D. WANG: Chinese Journal of Rock and Soil Mechanics , Vol. 30(2009), pp.1373-1380.
2. J.M. JI, G. G, LIU: Journal of TONGJI University, Vol. 29(2001), pp.531-535.
3. Sharma J S, Hefny A M, Zhao J, et al: Tunneling and Underground Space Technology, Vol. 16(2001), pp.93-98.
4. VORSTER T E B, KLAR A, SOGA K, et al: Chinese Journal of Geotechnical and Geoenvironmental Engineering, Vol. 131(2005), pp.1399-1410.
5. D.H. LIU, P.Z. HUANG and S.Z. FENG: Chinese Journal of Rock and Soil Mechanics, Vol. 31 (2009), pp.5485-5489.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献