摘要
通过分析"岩溶陷落柱"的地面及井下特征以及对煤矿生产安全的影响,提出采掘工作面遇岩溶陷落柱时,采取陷落柱顶塔搭建中注重锚杆和锚索的可锚性、小距离锚索间距的加强支护、喷浆封闭、注浆填充胶结陷落柱内的顶板,实现了采掘工作面安全生产。
By analyzing the characteristics of karst collapse column and its effect on coal mine production,the measures of strengthening roof support,sealing surrounding rock by shotcrete,and cementing roof by grouting filling were carried out,and the safety production of mining face was achieved.
引文
[1]刘重举.陷落柱的发育规律及探测技术[J].煤田地质与勘探,1997,25(5):11-13.
[2]地质矿产部.中国北方岩溶分布及发育规律的研究(第2分册)[M].北京:冶金工业出版社,1989.
[3]山西省煤炭管理局.山西煤田地质[M].北京:煤炭工业出版社,1960.
[4]董其成,陆宝琛.岩溶陷落柱对综采经济效益的影响[J].煤炭科学技术,1989,27(8):19-21.