关键词: 软弱破碎围岩, 超前探测, 注浆, 设计优化, 大型断层

Abstract: The roadway layout in eight mining area of Chensilou coal mine designs that through the large and medium-sized fault to decorate production system. In order to minimizing the rock tunnel construction quantities, ensuring the safety of tunnel construction at the same time, the paper using the advanced detection on longer distance, grouting reconstruction limestone aquifer, grouting seal rock fissure, the highest strength supporting methods on soft and broken surrounding rocks, to optimizing the design scheme, and enhancing the compressive strength of surrounding rock near the fault, blocked limestone aquifer water channel. The coal mine has obtained the good effect in the engineering practice later.

Key words: Soft broken surrounding rock, Advanced detection, Grouting, Design optimization