摘要
针对王庄煤矿8107工作面运输巷过F317断层时围岩变形破坏严重的问题,通过理论分析明确了引起围岩破坏的原因,并计算得出过断层时巷道的临界破坏范围为2.214 m。针对围岩变形机理,提出了“超前预注浆加固+锚索网联合支护”的围岩控制方案。现场应用效果良好,保证了巷道的安全高效掘进。
In view of the serious deformation and destruction of surrounding rock when the transportation roadway of the 8107 working face of Wangzhuang Coal Mine passes through the F317 fault,the cause of surrounding rock failure is clarified through theoretical analysis,and the critical failure range of roadway passing through fault is calculated to be 2.214 m.According to the deformation mechanism of surrounding rock,the surrounding rock control scheme of"advance pre-grouting reinforcement+anchor cable net combined support"is put forward.The field application effect is good,which ensures the safe and high efficiency driving of the roadway.
作者
李涛
崔中和
Li Tao;Cui Zhonghe(Wangzhuang Coal Mine of Shanxi Lu'an Chemical Group,Shanxi Changzhi 046031)
出处
《山东煤炭科技》
2023年第3期40-42,45,共4页
Shandong Coal Science and Technology
关键词
断层
破碎带
巷道
注浆
fault
fracture zone
roadway
grouting
