Study on strata behavior and variation law of bolt shaft force of fully mechanized coal mining face under fault
Based on the field measurement and taking te fault into account, the FLAC software was used to simulate and analyze the variation law of the axial force under the influence of mining and the causes of the strata phenomenon such as triangular blocks.The results are as follows: Simulation results such as the old roof pressure cycle, temporal and spatial distribution of axial force of anchor are consistent with the measured one,thus the correctness of the model has been proved;In the front of the working face, the support pressure increases first and then decreases, finally tends to be stable;When affected by the fault, the maximum support pressure in front of the working face and the range of the bolt advance support will increase.
FLAC3D numerical simulation anchor shaft force mining effect strata behavior fault effect
SHI Hao ZHANG Hou-quan
State Key Laboratory for Geomechanics & Deep Underground Engineering, China University of Mining & Technology, Xuzhou 221116, China;School of Mechanics and Civil Engineering ,China University of Mining & Technology, Xuzhou 221116, China
国内会议
安徽淮北
英文
85-91
2017-10-14（万方平台首次上网日期，不代表论文的发表时间）