基于关键层理论的近水平煤层条带开采参数确定  

Strip-partial Mining Parameter Determination for Nearly Horizontal Seam Based on Key Stratum Theory

作　　者：崔健[1] 杨双锁[1,2] 赵飞[1] 李树峰[1] 李平[1] 

机构地区：[1]太原理工大学矿业工程学院,山西太原030024 [2]重庆大学煤矿灾害动力学与控制国家重点实验室,重庆400030

出　　处：《煤矿安全》2015年第3期182-185,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51274145)

摘　　要：通过数值模拟对比了不同采留比条件下条带开采对上覆岩层及地表的采动影响,提出了基于关键层理论的条带开采参数确定方法。研究表明:采出条带宽度主要影响上覆岩层破坏范围,保留条带宽度控制采动影响的叠加效应;关键层破断层数越多,地表下沉越剧烈,通过限制采出条带宽度减少关键层破断层数,可以有效减沉。因此确定参数的原则是保留条带宽度满足强度要求,采出条带宽度满足关键层控制要求。We compares the impact of strip- partial mining on overlying strata and surface under different mining and remaining ratio conditions by using numerical simulation,and presents a strip- partial mining parameter determination method based on the key strata theory. Research shows that the width of mining strip mainly influence the scope of breaking overlying strata and the width of remaining strip control the superimposed effect of mining; the more of the key strata fracture is,the greater of the surface subsidence is; through limiting the width of mining strip to reduce the number of broken key strata can effectively reduce surface subsidence. Therefore,the principle of parameter determination is that the width of remaining strip must meet the strength requirements and the width of mining strip must meet requirements for controling key strata.

关 键 词：条带开采 采动影响 关键层 数值模拟 采留比 

分 类 号：TD853.211[矿业工程—金属矿开采]