中等富水含水层下留设防砂煤柱开采的试验  

The Test and Study on Mining with Sand -Against Pillar under Moderately Water-Rich and Water-Bearing Strata

作　　者：廖学东[1] 疏开生[1] 

机构地区：[1]淮南工业学院,资源开发与管理工程系淮南232001

出　　处：《辽宁工程技术大学学报（自然科学版）》1998年第6期572-577,共6页Journal of Liaoning Technical University (Natural Science)

摘　　要：通过对底部无稳定粘性土隔水层的中等富水含水层下留设防砂煤柱开采进行试验研究,揭示了覆岩破坏移动、 矿山压力显现和地表移动变形规律与有关参数的变异特征,为条件类似矿井提高上限采煤提供参考依据.Based of the test and study on mining with sand-against pillar under moderately water-rich and waterbearing strat,under which there is no stable clay pan,the regularity of overburden failure and movement / phenom enon of underground pressure,surface movement and deformation,and the variation character of relevant parame ters ae revealed.The reference secundum is provided for toplimit-enhancing mining of similar -condition mine shaft.

关 键 词：含水层下采煤 防水煤柱 防砂煤柱 采煤 煤矿 

分 类 号：TD823.83[矿业工程—煤矿开采]