组合硬岩层顶板破断规律及导水裂隙带电法探测  

Composite hard strata break rules and the electric tests fractured of water-conducting zone

作　　者：付宝杰[1,2] 高明中[1,2] 涂敏[1,2] 张平松[3] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001 [2]安徽理工大学煤矿安全高效开采省部共建教育部重点实验室,安徽淮南232001 [3]安徽理工大学地球与环境学院,安徽淮南232001

出　　处：《水文地质工程地质》2015年第2期140-144,共5页Hydrogeology & Engineering Geology

基　　金：国家自然科学基金(51074004;51174002);安徽省科技攻关计划(11010401015)

摘　　要：为分析组合厚硬岩层顶板导水裂隙带发育高度,合理设计区段防水煤柱尺寸参数,文章利用并行电法测试技术探测了两关键层临近赋存顶板破坏特征及其破断规律,结果表明:两关键硬岩层呈现非同步破断特征,当下部关键层出现一个以上破断周期后,引起上部关键层破断;1622(3)工作面组合厚硬岩层顶板导水裂隙带发育高度50 m,为平均采高的12.8倍。研究结果为同类地质条件下采场围岩控制及防水煤柱尺寸设计提供指导依据。In order to analyze the fractured zone height in composite thick-hard strata of roof and obtain, reasonable section parameters of the waterproof coal pillar design, this paper uses parallel electric testing technology to detect the characteristics of two adjacent occurrence of the roof key stratum and breaking rules. The results indicate that the two key hard strata show asynchronous breaking characteristics, and when more than when one lower key layer breaking cycle occurs, the upper part of the key layer breaking can be induced. The hight of the roof water fratured zone in the 1 622 （3） working face combination thick-hard strata is 50 m, and is 12. 8 times the average mining height being broken. The results of the study can provide guidance for the similar geological conditions of stope surrounding rock control being on the basis of waterproof coal pillar design.

关 键 词：复合硬岩层 导水裂隙带 电法探测 防水煤柱 

分 类 号：TD32[矿业工程—矿井建设]