大埋深破碎围岩巷道掘进支护优化设计研究
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摘要
针对木瓜矿10-102工作面掘进巷道受高地压围岩破碎严重的问题,采用常规掘进方式难以满足安全生产需求,为此对巷道掘进与支护难度进行分析,并对支护参数进行详细计算以及对巷道支护方式进行优化。结果表明,巷道顶板最大沉降值为43 mm,最大移动速率为8mm/d,巷道两帮最大移进距离为29 mm,最大移动速率为5 mm/d,支护优化效果显著提升。
Based on the serious problem of surrounding rock crushing under high ground pressure in 10-102 working face roadway of Mugua Mine,conventional mining method was difficult to meet the demand of safe production.Therefore,the difficulty of mining and supporting was analyzed,and the supporting parameters were calculated in detail and the supporting method was optimized.The results showed that the maximum settlement value of the roadway roof was 43 mm,the maximum movement rate 8 mm/d,the maximum movement distance of both sides of the roadway 29 mm,the maximum movement rate 5 mm/d,and the support optimization effect was significantly improved.
Based on the serious problem of surrounding rock crushing under high ground pressure in 10-102 working face roadway of Mugua Mine,conventional mining method was difficult to meet the demand of safe production.Therefore,the difficulty of mining and supporting was analyzed,and the supporting parameters were calculated in detail and the supporting method was optimized.The results showed that the maximum settlement value of the roadway roof was 43 mm,the maximum movement rate 8 mm/d,the maximum movement distance of both sides of the roadway 29 mm,the maximum movement rate 5 mm/d,and the support optimization effect was significantly improved.
引文
[1]邹永德.巷道支护三级控制技术在张双楼煤矿的应用[J].煤炭开采,2012(2):73-74,77.
[2]谢生荣,谢国强,何尚森,等.深部软岩巷道锚喷注强化承压拱支护机理及其应用[J].煤炭学报,2014,39(3):404-409.
[3]常庆粮,周华强,翟群迪,等.程村软岩巷道底鼓控制技术[J].煤炭科学技术,2007,35(4):26~28.
[4]何满潮,孙晓明.中国煤矿软岩巷道工程支护设计与施工指南[M].北京:科学出版社,2004.
[5]陈炎光,陆士良.中国煤矿巷道围岩控制[M].徐州:中国矿业大学出版社,1995.
[2]谢生荣,谢国强,何尚森,等.深部软岩巷道锚喷注强化承压拱支护机理及其应用[J].煤炭学报,2014,39(3):404-409.
[3]常庆粮,周华强,翟群迪,等.程村软岩巷道底鼓控制技术[J].煤炭科学技术,2007,35(4):26~28.
[4]何满潮,孙晓明.中国煤矿软岩巷道工程支护设计与施工指南[M].北京:科学出版社,2004.
[5]陈炎光,陆士良.中国煤矿巷道围岩控制[M].徐州:中国矿业大学出版社,1995.