矿井深部开采沿空巷道的围岩控制技术研究

矿井深部开采沿空巷道的围岩控制技术研究

苗润田;周松江

【期刊名称】《中国科技纵横》

【年(卷),期】2011(000)019

【摘要】Based on the surrounding rock features of fully-mechanized top-coal caving gob-side entry in deep cover, such as worse stability, larger deformation and difficult to support, the support type and entry section shape have been studied to control the fully-mechanized top-coal caving gob-side entry. Result shows that bolt-pillar-mesh-cable support type and semi-circle section are effective to control the surrounding rock of fully-mechanized topcoal caving gob-side entry, because those can obviously decrease the amount of deformation and increase the stability.%针对深部综放沿空巷道围岩稳良陆差、变形大、难支护的特点，通过理论分析、数值模拟和现场实验等方法，从巷道支护方式和巷道断面优化两方面讨论了深部综放沿空巷道的控制技术。研究结果表明：直墙半圆拱形断面、锚梁网索联合支护方式能够较好的控制深部综放沿空巷道围岩，减少巷道围岩变形，增强其稳定性。

【总页数】2页(278-279)

【关键词】深部综放沿空巷道;半圆拱形;锚网索联合支护;断面优化

【作者】苗润田;周松江

【作者单位】山西潞安集团左权五里堠煤业公司,山西晋中032600;中国矿业大学矿业工程学院,江苏徐州221008