复合顶板巷道控制技术研究与应用

A Research and Application of the Control Technology of Composite Roof Roadway

以顶板弱面及控制顶板离层稳定为研究对象,着眼于巷道控制的实际效果,围绕巷道顶板内软弱夹层导致巷道顶板离层失稳控制技术研究等难题,进行了系统的研究和实践探索,并进行了复合顶板的支护方案设计。现场测试结果显示:新的方案实现了更为理想的支护效果,围岩形变量大幅减少。

Taking the weak side and roof stability control of roof abscission layer as the research object, the paper focused on the study of the practical effects of the control of roadway, and the control of instability of roadway roof abscission layer, caused by the surrounding roadway roof in weak layers, and proposed the composite roof support design.The test shows that the new scheme realizes the more ideal supporting effect, and the surrounding rock shape variable is greatly reduced.