钱营孜煤矿3_212工作面防排水工作实践

Working Practice of Waterproof and Drainage in 3_212 Working Face of Qianyingzi Coal Mine

通过对钱营孜煤矿3212工作面防排水的设计优化和安全回采验证的分析,得出矿井在防治煤层顶底板砂岩裂隙水水害时应坚持物探先行,同时应根据现场条件施工泄水巷和环形水仓,尽量实现自流和集中排水,提高排水和抗灾能力,为有针对性地探放砂岩裂隙水和排水系统的优化设计提供了经济可行的方案。

through optimization of waterproof and drainage design at 3212 working face in Qianyingzi coal mine and the analysis of safety mining verified,it is got that coal mine should adhere to the geophysical first in preventing and treating of sandstone fissure water harm of coal seam roof and floor.At the same time,it should construct drain roadway and ring sump based on site conditions to realize the gravity flow and concentrated drainage,and to improve drainage and disaster resilience,which provides economically viable solution for targeted exploration and discharge of the sandstone crevice water and optimization design of drainage systems.