深井巷道全断面支护技术研究

Study on Support Technology of Whole Working Face in Deep Roadway

我国煤矿浅部资源日趋衰竭,矿井开采深度逐年增加,深部巷道受高地应力作用,变形破坏严重,因此,深井巷道支护是目前矿压界的支护重点和关键。针对这一问题,依据现场工程实践,通过设计有效的支护方案,全断面采用以注浆与锚杆锚索的锚注联合支护,及时监测矿压变化规律。结果表明,该支护方案在深井巷道围岩控制中起到了良好的效果,为深井巷道围岩控制提供参考和借鉴。

With the exhaustion of coal resources day by day,the depth of coal mining has being increased year by year.As a result of high-stress,surrounding rock of deep roadway was serious deformation.Support of deep roadway was the key and emphasis of support in coal pressure field.In this paper,an effective support scheme was worked out on the basis of engineering practice including the effective designing scheme.The use of anchoring cables and bolt plus grouting in whole face of roadway,timely monitoring of mine pressure were adopted.Results of this experiment indicated that this support scheme exerted effect for controlling surrounding rock in deep roadway,and provided guidance for controlling surrounding rock in deep roadway.