Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Coal Technology》 2018-01
Add to Favorite Get Latest Update

Study on Mechanism of Floor Failure and Water-inrush Induced by Variation of Pore Water Pressures under Process of Mining

GAO Dong-chuan;HU Shu-zhen;GAO Dong-ren;WANG Zhen-lian;Shaanxi Lutai Energy Technology Company Limited;Shandong Lutai Holding Group Company Limited;Shandong Xinjulong Energy Limited Liability Company;  
Based on the seepage theory of rock mass and the theory of rock mass mechanics,the relations between bulk strain of rock′s element and pore water pressures from tiny element of rocks are derived.With simulation data,mainly analyzes the process of bulk strain of the floor rock′s element,pore water pressures and the changing relation between the two under the process of mining,the law of which is obtained.The study results show that the increment of rock mass unit′ s micro-strain produced pore water pressures change in greater amount,causing volume change of the micro unit,which will finally lead to rock mass strength weakening.This conclusion can provide theoretical basis for coal mining above aquifer.
【Fund】: 国家自然科学基金资助项目(51274135);; 山东省优秀中青年科学家科研奖励基金(BS2011SF016)
【CateGory Index】: TD745
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