浅析锚梁网、锚索支护技术在煤巷中的应用

Coal Way Support Technology with Bolt Supported Steel Net and Large Steel Rope

根据巷道的地质条件 ,设计了锚梁网、锚索支护参数 ,通过锚梁网、锚索支护和U型钢支架的围岩变形观测和顶板离层观测 ,结果表明 ,锚梁网、锚索支护比U型钢支架稳定。通过经济效益分析 ,每米单价锚梁网、锚索支护比U型钢支架降低 5 7.7%。

According to the geological conditions of coal way, the support parameters of the bolt support with steel net and large steel rope are designed. By means of the measurement of excavation and roof deformations on the bolt with steel net and large steel rope as well as the U steel support, it is proved that the former two are more stable than the latter. As indicated in cost estimate, the unit price per meter of the bolt support with steel net and large steel rope drops by 57.7% as compared with that of U steel support.