Paper Title:
Study on Safe Thickness of Comparatively Intact Rock Ahead of Karst Tunnel Face
  Abstract

Under the effect of water pressure in karst cave before tunnel face, water inrush happens when excavation face enters into the minimal value of safe thickness. Aiming at comparatively intact rock ahead of karst tunnel face, rock wall often appears to be tensile fracture. With some hypotheses, a mechanical model of water inrush for tunnel face instability has been established, furthermore, the analytical expression to calculate safe thickness of rock wall has been given based on the criteria of tension strength through elastical theories. Combined with Maluqing tunnel in Yiwan line, applicability and reliability of formula is discussed.

  Info
Periodical
Edited by
Xuejun Zhou
Pages
2456-2459
DOI
10.4028/www.scientific.net/AMM.90-93.2456
Citation
J. Q. Guo, L. W. Ren, X. L. Liu, "Study on Safe Thickness of Comparatively Intact Rock Ahead of Karst Tunnel Face", Applied Mechanics and Materials, Vols. 90-93, pp. 2456-2459, 2011
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ming Huang, Xu Dong Zhang, Mao Kun Xu, Li Qin Cai
Abstract:With 19 groups of data associated with inrush or bursting water from karst cavity, obtained from Yichang-Wanxian Railway Maluqing Tunnel...
2650
Authors: Lin Jie Chen, Bo Liang, Zhi Yong Wang
Abstract:Based on soil-structure interaction model, the seismic dynamic response of tunnel in karst areas were performed by using viscous-spring...
2108
Authors: Lin Jie Chen, Bo Liang
Abstract:Based on soil-structure interaction model, the response analyses of the Menglian tunnel by using viscous-spring artificial boundary and time...
2178
Authors: Hui Liu, Xiao Zhao Deng
Chapter 3: Tunnel, Subway and Underground Facilities
Abstract:Baixugong tunnel is a big karst tunnel in Qing-Lian highway, and the construction environment is complexity. The structure of pile-pile...
1323
Authors: Jia Qi Guo, Lian Wei Ren, Guang Yong Wang
Chapter 4: Tunnel, Subway and Underground Facilities
Abstract:Accompanying the enforcement of strategy to develop western regions, transport and other infrastructures of western China expand...
1325