新安矿34采区深部开采顶板覆岩破坏规律探测技术研究  

Research on Detection Technology of Roof Overburden Failure Law in Deep Mining in No.34 Mining Area of Xin'an Mine

作　　者：冯波 巴新伟 邸伟 Feng Bo;Ba Xinwei;Di Wei(Xin'an Coal Industry Co.,Ltd.,Zaozhuang Mining Group,Shandong,277000)

机构地区：[1]枣庄矿业集团新安煤业有限公司,山东277000

出　　处：《当代化工研究》2020年第13期102-103,共2页Modern Chemical Research

摘　　要：为掌握新安矿34采区3煤层顶板覆岩“两带”发育情况,结合开采需要和现有工作面条件,确定在3405工作面材料巷采用并行电法动态测试技术进行现场测试,获得覆岩变形与破坏“两带”高度及其变化形态。结果表明:通过视电阻率和电流比值得出垮落带高度为27.7m,导水裂缝带高度为79.7m;垮高/采厚比为3.6,裂高/采厚比为10.5;为以后同类覆岩条件下煤层开采顶板“两带”高度预计及露头防(隔)水煤岩柱留设提供依据。In order to master the development of"two zones"of overlying strata in No.3 coal seam roof of No.34 mining area of Xin'an mine,combined with mining needs and existing working face conditions,parallel electrical dynamic testing technology was adopted in 3405 working face material lane to obtain the height of"two zones"of overlying strata deformation and destruction and their change forms.The results show that the caving zone height is 27.7m and the water flowing fractured zone height is 79.7m according to the apparent resistivity and current ratio.The ratio of caving height to mining thickness is 3.6 and the ratio of crack height to mining thickness is 10.5.It provides the basis for predicting the height of the"two zones"of the roof of coal seam mining under similar overburden conditions in the future and for setting up outcrop water-proof coal rock pillars.

关 键 词：深部采区 并行电法动态测试 “两带”高度 

分 类 号：T[一般工业技术]