破碎难采矿体开采地压的测试研究  

Study of Testing on Ground Pressure in Mining of Difficultly-mined Broken Orebody

作　　者：赵伏军[1] 李夕兵[2] 赵国彦[2] 李启月[2] 胡柳青[2] 刘国富 

机构地区：[1]湖南科技大学,湖南湘潭市411201 [2]中南大学,湖南长沙410083 [3]山东省新城金矿,山东莱州市261000

出　　处：《矿业研究与开发》2003年第3期12-14,19,共4页Mining Research and Development

摘　　要：针对新城金矿极破碎顶底柱难以安全采出的情况,开展了采场地压规律的动态监测。应用YZY型钻孔应力传感器和二次接收仪测量采场地压变化,采用电子数显式收敛计量测围岩变形,得出了顶底柱开采地压变化的一般规律,为选择合理的矿柱开采方案和地压控制措施提供了科学的依据。According to the conditions that the very broken crown and sill pillars in Xincheng gold mine are difficult to be mined safely, the dynamic monitoring of the law of stope ground-pressure was carried out. The change of stope ground-pressure was measured by use of Model YZY borehole stress sensor and the secondary receiver, and the electronic digitally-displayed convergence indicator was used to measure a deformation of surrounding rock, so as to obtain a general law of ground pressure in the mining of crown and sill pillars. This provides a scientific basis for selecting the rational pillars mining scheme and the ground-pressure control measures.

关 键 词：破碎难采矿体 采场地压 收敛变形 现场测试 

分 类 号：TD325.4[矿业工程—矿井建设]