水力压裂切顶技术对巷道顶板影响研究

Study on Influence of Hydraulic Fracturing and Cutting Technology on Roof of Roadway

水力压裂切顶技术一定程度上破坏了巷道顶板的完整性和稳定性,对巷道围岩支护和工作面单轨吊运输存在潜在的安全影响,因此通过采取多种手段研究其对巷道顶板的破坏程度具有重要意义。研究表明水力压裂切顶只是对巷道深层顶板(关键层)进行压裂,对浅层顶板支护和工作面单轨吊运输影响较小。

The hydraulic fracturing and cutting technology has destroyed the integrity and stability of the roof of the roadway to a certain extent, and has potential safety impact on the surronding rock support of the roadway and the monorail crane transportation. Therefore, it is of great significance to study the damage degree of the roof of the roadway by adopting various means. The research shows that the hydraulic fracturing cutting only fractures the deep roof （key layer） of the roadway, and has little effect on the shallow roof support and the monorail crane transportation