煤矿顶底板隔水关键层分析与破坏能力评价  

Analysis of key layers of water-resistance of coal roof and floorand evaluation of its destruction ability

作　　者：张思蔚 Zhang Siwei(Hebi Coal and Electricity Co.,Ltd.,Hebi 458000,China)

机构地区：[1]鹤壁煤电股份有限公司,河南鹤壁458000

出　　处：《能源与环保》2020年第10期34-37,42,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

摘　　要：为了研究煤矿顶底板隔水关键层及其破坏能力,根据采空区分布平面和主要含水层,分析了煤层顶底板物理力学参数和煤层隔水层结构,采用理论公式计算了煤层顶底板破坏高度和深度,采用数值模拟软件,分析了一采区、二采区和三采区顶底板破坏范围随工作面推进距离的变化规律。研究对实现煤层带压安全开采具有重要的指导意义。In order to study the analysis and destruction capabilities of the key layers of the coal roof and floor,according to the distribution plane of the goaf and the main aquifers,the physical and mechanical parameters of the coal roof and floor and the structure of the coal seam′s water-resistant layer are analyzed,and the coal roof and floor damage height was calculated by theoretical formulas and depth,it was used numerical simulation software to analyze the change law of the roof and floor damage range of the first mining area,the second mining area and the third mining area with the advance distance of the working face.The research had important guiding significance for realizing safe mining under pressure.

关 键 词：隔水关键层 破坏能力 顶底板破坏高度 破坏深度 数值模拟 隔水层结构 

分 类 号：TD745.2[矿业工程—矿井通风与安全]