钱营孜煤矿 E3₂15 工作面提高开采上限技术研究

打开文本图片集

中图分类号：TD823 文献标志码：A 文章编号：2095-2945（2025）26-0083-05

Abstract： Takingthe E32l5 working face of Qianyingzi Coal Mine asthe research object，and based on the analysis of hydrogeologicalandengineringgeologicalcharacteristicsofthestudyarea，theheightofoverburdenfailureinducedbycoal miningin the No.32 coal seam was predicted through theoretical analysis，engineering analogy，and numerical simulation methods. Aditionally，thecriticalhydraulicgradientandresistancetoseepagefilureoftheoverlyingQuateraryaquifergroupwere evaluated.Theresultsindicatethatraisingtheminingelevationby2OmetersintheE315workingfacedesignisfeasible，with no risk of water inrush and sand gushing.The mining operation is confirmed to be safe and reliable.

Keywords：engineering geology;mining upper limit; collpse zone height;numerical simulation;hydraulic slope

随着国家能源结构调整和能源生产消费革命的不断深入，煤炭资源需求开始回升。（剩余4985字）