Stability Analysis of Goaf Underlying South-to-North Water Transfer Project
Goaf has been encountered in the South-to-North water transfer project as a difficult geotechnical problem. The special problems are challenged with engineering construction over the goaf because of the complexity of geotechnical characters. The evaluation methods of the goaf stability was put forward on the characteristics of South-to-North water transfer project and the basic situation of Jiaozuo Coals, the influences of goaf are analyzed under the channel load，and the maximal disturbed depth of the channel foundation was found; Then the goaf stability in Fengying Coal Mine is studied with the application of 2-D elastic-plastic FEM - ANSYS soft in the paper, the stability of goaf was judged by the numerical simulation and evaluation criterion of stability under additional load. The distortion and deformation caused by channel load on the goaf are satisfied to the required standard of engineering construction is obtained.
goaf the South-to-North water transfer project channel stability
ZHANG Yanbin LI Dehai LIU Hongjiang
School of energy science and engineering, Henan polytechnic university, Henan Jioazuo 454003 Henan Hongji coal Co.Ltd. Henan Gongyi,451273
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
264-268
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）