Study on finite element simulation and in-site monitoring of ground subsidence law for omprehensive mechanized caving coal mining under railway
With the project of mining 701 working face of Baojianshan Coal mine of Jingyuan Coal Indus try Group under mine special railway as a background, the authors predict ground subsidence law caused by routine comprehensive mechanized caving coal mining method and back filling method with elastic-plas tic nonlinear FEM. By different exploitation methods, development law of horizontal displacement, vertical displacement, shift angle of strata during mining is given. According to predication results by FEM soft ware ANSYS, the maximum vertical settlement of subsidence area near railway subgrade is 7cm, which is caused by mining 701 working face. The in-situ monitoring results were essentially identical with the FEM predication values, which indicates that FEM predication is reliable. The rehabilitation technical measure of railway bed and deformation monitoring scheme of railway during long-term operation are advised.
under special railway line comprehensive mechanized caving coal mining ground subsid ence Finite Element Method in-situ monitoring deformation law technical measure
Keheng Wen Changqing Liu Jianxi Ren Hui Liu Yinhe Zhang
School of Civil Engineering and Architecture, Xian University of Science and Technology,Xian 71005 School of Civil Engineering and Architecture, Xian University of Science and Technology,Xian 71005 School of Civil Engineering and Architecture, Xian University of Science and Technology,Xian 71005
国际会议
重庆
英文
184-190
2009-05-20（万方平台首次上网日期，不代表论文的发表时间）