软弱顶板煤巷锚杆支护技术研究

Technology Research of Weak Roof Bolt-anchor Cable

为解决软弱顶板煤巷支护难题,提高掘进速度,针对巷道围岩软弱特征,采用BHS-56型围岩强度装置进行测试,基于测试结果,依据试验巷道生产地质条件,通过数值模拟研究了巷道不同支护方案,确定了巷道支护方式及参数。井下矿压观测结果表明,设计的支护方案能够有效控制巷道变形。

To solve the problem of coal roadway supporting weak roof,improve speed excavation,in view of the characteristics of the surrounding rock weak,the strength of surrounding rock type BHS-56 test device,based on the test results,according to the geological conditions of production test,through the numerical simulation of the different support scheme,and the way of support and parameters.Underground mine pressure observation results show that the scheme design can effectively support the roadway deformation control.