According to the complicated geological conditions in Yangcun Mine with about 100 m long weathered zone,strata crack development,serious broken,difficult borehole completed and serious borehole falling,in order to explore the formation causes and structure features of the high weathered zone and to ensure the borehole successfully passing through the section of the strata and the grouting successfully completed for the water sealing,from the geological structure role and the fault analysis,an analysis was conducted on the weathered and broken zones in the DF30,DF33 and SF40 faults under the industrial park of Yangcun Mine.Meanwhile,in combination with the problems occurred in the grouting borehole drilling operation of the surface pre-grouting engineering,the construction measures to pass through the weathered and broken zones were conducted to ensure the successful grouting operation.%针对杨村煤矿地质条件复杂,有近百米的风化带,地层裂隙发育,破碎严重,成孔困难,塌孔严重的问题,为了探明强风化带的形成原因和结构特点,保证钻孔顺利通过该段地层,顺利完成注浆堵水施工,从地质构造作用及断层分析的角度入手,着重对穿过杨村煤矿工业广场内的DF30、DF33、SF40三条断层进行考察,综合分析了其基岩风化破碎带的成因,同时结合地面预注浆工程注浆孔造孔施工中出现的问题,采取穿越风化破碎带的施工措施,确保了注浆施工顺利进行。
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