Fucun Mine, Zaozhuang Coal Mining Group Ltd.

针对付村煤矿3上401不规则综放工作面沿断层托顶煤巷道支护出现的顶板破碎、漏顶、变形量大等问题,通过现场调查、FLAC3D数值模拟分析和现场试验,研究了放顶煤开采沿断层托顶煤巷道围岩变形规律和控制技术,提出采用锚杆+锚索+钢筋梯+金属网支护可使围岩形成有效承载体,能使不规则综放工作面沿断层托顶煤巷道整体稳定。3上401回风巷工程实践表明,巷道掘进5个月后,巷道顶、帮部锚杆最大变形量分别为18和32 mm,支护效果良好。

According to the roof broken, roof leakage, high deformation and other problems occurred in the support of the seam gateway with the suspended top co al along the fault in No.3 up 401 irregular fully-mechanized top coal caving mining face in Fucun Mine, with the site investigation, FLAC3D numerical simulation analysis and site test, the paper had a study on the surrounding rock deformation law and control technology of the mining gateway with the suspended top coal along the fault i n the fully-mechanized top coal caving mining face.The bolt + anchor + reinforced bar ladder + steel mesh support applied to the surrounding rock to form an effective I oading body could be the key to keep the integrated stability of the seam gateway with the suspended top coal along the fault in the fully-mechanized top coal caving mi ning face. The engineering practices of the air retuning gateway in No.3 up 401 coal mining face showed that after five months of the gateway driven, the max deformati on value of the bolts in the roof and sidewall of the gateway was 18 and 32 mm individually and the support effect was excellent.

中国煤炭工业协会科学技术研究指导性计划资助项目(MTKJ2009-164)；