节点文献
基于围岩松动圈现场测试的深部软岩巷道支护技术优化
Optimization of Support Technology for Deep Soft Rock Roadway Based on Field Measurement of Excavation Damage Zone
【摘要】 采用围岩松动圈支护理论,在支护设计前,用BA-Ⅱ型围岩松动圈测试仪对马路坪矿640中段运输大巷新开挖的20 m巷道进行了围岩松动圈测试,并用数值模拟的方法对测试结果进行了验证。对目前使用的支护形式进行了优化设计,并在640中段运输大巷进行了工业性试验,试验结果表明,改进的支护形式是最优的,为马路坪矿深部开拓工程的支护设计提供了技术参考。
【Abstract】 By adopting support theory based on excavation damage zone,the extent of excavation damage zone was measured with BA-Ⅱ loose zone tester for the newly excavated 20 m roadway in 640 m level transportation roadway.Test results were verified with numerical simulation methods.The existing support method was optimized and an commercial test was performed for 640 m level transportation roadway.Test results show that the improved support method is the best,which can provide technical references for support designs of deep development works in Maluping Mine.
【Key words】 excavation damage zone; field measurement; soft rock roadway; support method;
- 【文献出处】 矿冶工程 ,Mining and Metallurgical Engineering , 编辑部邮箱 ,2012年01期
- 【分类号】TD353
- 【被引频次】20
- 【下载频次】289