提高岩巷锚喷支护率的有效途径

从6个方面阐述了提高岩巷锚喷支护效率,如岩巷中应用新型高强度锚杆,辅助采用巷道围岩注浆加固加强支护技术等,采取多种途径提高岩巷锚喷支护占有率,同时详细介绍了锚杆锚网支护工艺、围岩注浆工艺及有关参数。

粉矿开采中光爆锚喷掘支综合技术研究

针对金山店铁矿Ⅱ采区 -60m水平矿岩特性 ,研究出一套在粉矿中分类掘进、分级支护的综合技术。实施后的巷道的成巷率大幅度提高 。

段村雷沟铝土矿新中段开拓施工方案优化

段村雷沟铝土矿新中段开拓工程量大,工程地质和水文地质条件复杂。为加快施工进度,节省工程成本,对基建期开拓巷道施工过程中存在的主要问题进行了分析,结合矿区水文地质条件研究成果,提出生产期将新中段开拓巷道由脉内布置改为脉外布置、引进高密度电法加强超前探水、开拓与采准工程协同推进、选用配套设备实现一次成巷等优化措施,通过实施可有效地减少巷道支护率,加快中段开拓施工进度和保障施工安全,对同类矿山有着重要的借鉴意义。

Research on hydraulic-powered roof supports test problems

The load-bearing characters of hydraulic-powered roof support with dual telescopic legs were analyzed. With a specific type hydraulic-powered roof support with dual telescopic legs for research object, the inside load test problems in factories was analyzed, and the correct test methods were given, which can enhance the test efficiency and make the factories away from the error design of hydraulic-powered roof supports and legs.