摘要
以某矿倾斜煤层为研究对象,采用相似材料模拟实验的方法研究了特厚煤层重复采动下覆岩移动变形规律。结果表明:重复采动倾斜煤层,观测点垮落变形前下沉最大值为0.8 m,水平变形最大值为0.4 m;当覆岩下沉值超过0.8 m,上覆岩体在重力作用下垮落。
Taking the inclined coal seam in a mine as the research object,the research of thick coal seam of repeated mining rock deformation under cover by using the method of similar material simulation experiment. The results showed that repeated mining in inclined coal seam,caving deformation observation points before sinking to a maximum of 0.8 m level,the maximum deformation is0.4 m; when the overlying rock the sinking value of more than 0.8 m, the overlying rock under gravity collapse.
作者
孙学阳
寇规规
李鹏强
付恒心
李成
SUN Xue-yang;KOU Gui-gui;LI Peng-qiang;FU Heng-xin;LI Cheng(School of Geology and Environment,Xi＇an University of Science and Technology,Xi＇an 710054,China;Key Laboratory of Mine Geological Hazards Mechanism and Control,Xi＇an 710065,China)
出处
《煤炭技术》
CAS
2018年第9期12-14,共3页
Coal Technology
基金
国家自然科学基金资助项目(41272388)
矿山地质灾害成灾机理与防控重点实验室科研项目(KF2017-14)
关键词
相似材料模拟
覆岩移动
重复采动
similar material simulation
strata movement
repeated mining
