Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Mining Research and Development》 2008-02
Add to Favorite Get Latest Update

In-situ Stress Measurement and the Effects of In-situ Stress on Coal and Gas Outburst

Xu Ping1,Zhang Zixu2,Dai Yonghao3(1.Zhengzhou University,Zhengzhou,Henan 450002,China;2.Henan Polytechnic University,Jiaozuo,Henan 454000,China;3.Institute of Rock and Soil Mechanics,Chinese Academy of Science,Wuhan,Hubei 430071,China)  
Over 20 times of Coal and gas outbursts had taken place in Zhongmacun coal mine,Henan Province,and directly affected the safety in the mining production.In-situ stress measurement in the fields of coal and gas outburst at this mine was carried out by means of hollow inclusion gauge method.The results indicate that the maximum principal stress is approximately at the horizontal direction,the minimum principal stress is approximately at the vertical direction.A finite element model for the measured region was built using ANSYS software,and the measured in-situ stress which was taken as surface loads and reasonable boundary conditions were put on the model.The nephograms of principal stresses on the coal layer in the region were obtained by simulate the in-situ stress fields,and the effects of the maximum principal stress on coal and gas outbursts was analyzed.
【Fund】: 国家重点基础研究发展规划资助项目(2006CB202204);; 国家自然科学基金资助项目(40602017)
【CateGory Index】: TD713
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved