老厂锡矿采场冒顶灾害的原因与机理  

AN ANALYSIS ON CAUSES AND MECHANISM OF STOPE ROOF COLLAPSE DISASTER IN LAOCHANG TIN MINE

作　　者：曹庆林[1] 

机构地区：[1]长沙矿山研究院

出　　处：《矿业研究与开发》1993年第2期72-77,共6页Mining Research and Development

摘　　要：老厂锡矿是中国最大锡都云南锡业公司的支柱矿山。在长期开采过程中,多次发生采场冒顶灾害,主要表现在采场的浮石冒落、松散状氧化矿的脱落和软弱夹层的局部离层冒顶。本文根据14—5矿体(该矿山的主要矿体)采场冒顶统计,并结合发生不久的冒顶人身伤亡事故,按照采场岩体结构特征与破坏特征将该矿体采场冒顶事故进行了分类,分析了发生的原因与机理,并提出了相应的预报及防治措施。The Laochang Tin Mine is the mainstay of China' Tin Base Yunnan Tin Industry Corp. In the mining history several stope roof collapse disasters have occured. Roof collapses were mainly in the form of fall of loose rock, loose oxidized ore and collapse of local separating of weak intercalated layers. On the basis of stope collapse statistics of No. 14-5 orebody (major orebody of the mime) along with casualty accident which occured not long time age, according to structural characteristics of stope rockbody and roof failure characters, collapse accidents were classified. Causes and mechanism of collapse were investigated, and corresponding control measures were proposed.

关 键 词：采场 顶板冒落 事故 锡矿 

分 类 号：TD327.23[矿业工程—矿井建设]