诱导冒落处理采空区技术适用条件分析  

Analysis on Applicable Conditions for the Treatment of Goaf with Induced Caving

作　　者：何荣兴[1] 韩智勇[1] 任凤玉[1] 刘欢[1] 张晶 HE Rongxing;HAN Zhiyong;REN Fengyu;LIU Huan;ZHANG Jing(College of Resources and Civil Engineering,Northeastern University,Shenyang,Liaoning 110819,China)

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819

出　　处：《矿业研究与开发》2020年第8期36-40,共5页Mining Research and Development

基　　金：国家重点研发计划项目(2016YFC0801604);国家自然科学基金重点项目(51534003);辽宁省自然科学基金面上项目(20170540327).

摘　　要：诱导冒落是通过拉底及辅助诱导工程,诱导顶板岩体冒落,具有效率高、成本低等优点,已逐渐应用于采空区处理。通过诱导冒落成功应用案例,并基于岩体基本质量分级和Mathews稳定图法分析了诱导冒落矿山的矿岩稳定性和空区可崩性,得出诱导冒落处理空区的适用条件:空区围岩稳定性级别为中等稳固及以下为宜,初始空区可通过进一步回采或者崩落空区间柱进行空区扩展,最终形成的空区在马修斯稳定图上的崩落概率要高于80%,且地表允许崩落。研究成果对完善空区处理体系,推广应用诱导冒落技术具有理论指导和借鉴意义。Induced caving is a technology to induce the roof rock mass to collapse by the bottoming and auxiliary induction engineering.It has been gradually applied to the goaf treatment because of the advantages of high efficiency and low cost.Through the successful application case of induced caving,the mine rock stability and goaf collapsibility of induced caving mine were analyzed based on the basic quality classification of rock mass and Mathews stability diagram method.And the applicable conditions of induced caving treatment goaf were obtained as follows.The stability level of surrounding rock in goaf is medium stable or below,and the initial goaf can be expanded by further mining or caving empty interval colums,and the caving probability of the finally formed goal on the Mathews stability map is higher than 80%,and the surface is allowed to collapse.The research results have theoretical guidance and reference significance for improving the goaf treatment system and promoting the application of induced caving technology.

关 键 词：诱导冒落 采空区 可崩性 Mathews稳定图 

分 类 号：TD853.391[矿业工程—金属矿开采]