煤田地质与勘探Issue(1)：40-45,49,7.DOI:10.3969/j.issn.1001-1986.2013.01.008
老采空区地表剩余变形对城市轨道交通的影响评价
Evaluation of the influence of residual deformation above mined-out area on the stability of urban rail transit
马路兴 1吴朝阳 1高艳卫1
作者信息
- 1. 中国矿业大学资源与地球科学学院，江苏 徐州 221008
- 折叠
摘要
Abstract
In order to evaluate the stability of urban rail transit on coal mined-out area influenced by surface resid-ual deformation, according to Xuzhou Rail Transit Line 1, the closed rectangular integral model was established based on probability integral method. After choosing the reasonable computation parameters, the surface residual movement and deformation in the study area were calculated. As a result, the surface residual movement and de-formation contours were given. Besides, the curves of transverse and longitudinal movement deformation along the line axis were drawn respectively. According to the limitation of urban rail transit foundation deformation, the study area above coal mined-out area was divided into stable zone, unstable zone and very unstable zone. The in-fluence of the surface residual deformation on rail lines was analyzed. The results indicate that the transverse re-sidual deformations are less than allowable value in the unstable zones, but the longitudinal residual deformations exceed allowable value. Effective engineering measures should be taken to ensure the safety of the line.关键词
煤矿老采空区/地表剩余变形/概率积分法/稳定性评价Key words
coal mined-out area/surface residual deformation/probability integral method/stability evaluation分类
天文与地球科学引用本文复制引用
马路兴,吴朝阳,高艳卫..老采空区地表剩余变形对城市轨道交通的影响评价[J].煤田地质与勘探,2013,(1):40-45,49,7.
