三李煤矿突水因素分析及堵水工艺探讨

Analyses on Factors of Water Bursting and Probe into Technique of Stemming Water in Sanli coal Mine

根据三李煤矿矿井地质及水文地质条件的分析,三李煤矿矿井突水水源应该是来自二1煤直接底板太原组上段L7-8灰岩岩溶溶裂隙含水层。为探明突水通道,采用“先探后堵,探堵结合,堵源为主”的治理方案,查明了该次突水的主要通道是:“通过煤层而未径任何材料封闭的钻孔犤1犦。经对此处实施了钻孔注浆后,恢复了矿井生产。

Based on the analyses of mining geological and hydrogeological conditions of Sanli coal mine, the water source of water bursting in Sanli coal mine may be come from Karst fracture water in L7- 8 limestone of upper member in Taiyuan formation of Ⅱ 1 coal immediate bottom. In order to verify the passage of water bursting, used the harness scheme of ' Put probe before stemming, combine with probe and stemming, and primary as stemming' , and verified the main passage of water bursting as that: ' drill hole through coal bed but not yet close by anly material' . After grouting of drill hole at here, the mining production has been recovered.