| 深井软岩大断面硐室支护技术研究 |
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| 引用本文： | 王小毛,张翔,张道峰,陈帮忠,赵永法,刘绘峰. 深井软岩大断面硐室支护技术研究[J]. 煤炭技术, 2011, 30(8) |
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| 作者姓名： | 王小毛 张翔 张道峰 陈帮忠 赵永法 刘绘峰 |
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| 作者单位： | 1. 安阳市超越实业有限公司王家岭新井,河南安阳,455003
2. 中国矿业大学应用技术学院,江苏徐州,221008 |
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| 摘 要： | 分析了王家岭新井中央变电所深井软岩大断面硐室支护失效的机理,得出原岩应力、围岩岩性、支护强度和应力叠加是导致其断面收缩率高达40%的主要原因。通过现场试验,对比分析了锚网喷分别与钢筋梯子梁支护、U型棚和U型对棚+反底拱联合支护的效果,得出了控制底鼓是硐室稳定的关键。实践表明,锚网喷+U型对棚+反底拱联合支护有效地控制了中央变电所的围岩变形,消除了潜在的安全隐患。
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| 关 键 词： | 深井 软岩 硐室 联合支护 |
Research of Support Technology on Soft Rock Large Cross-Section Chamber in Deep Mine |
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| WANG Xiao-mao,ZHANG Xiang,ZHANG Dao-feng,CHEN Bang-zhong,ZHAO Yong-fa,LIU Hui-feng. Research of Support Technology on Soft Rock Large Cross-Section Chamber in Deep Mine[J]. Coal Technology, 2011, 30(8) |
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| Authors: | WANG Xiao-mao ZHANG Xiang ZHANG Dao-feng CHEN Bang-zhong ZHAO Yong-fa LIU Hui-feng |
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| Affiliation: | WANG Xiao-mao1,ZHANG Xiang2,ZHANG Dao-feng1,CHEN Bang-zhong1,ZHAO Yong-fa1,LIU Hui-feng1(1.Wangjialing New Coal Mine,Chaoyue Industry Co.,Ltd.,Anyang 455003,China,2.College of Applied Science and Technology,China University of Mining and Technology,Xuzhou 221008,China) |
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| Abstract: | As the original support form of central substation in Wangjialing Mine,bolt-mesh-spurting supporting can not effectively control the central substation surrounding rock deformation,and the section shrinkage rate is up to 40%.After analysis,in-site stress,surrounding rock properties,support intensity and stress superposition were determined as the original support failure causes.Three support schemes were tested in field for supporting the central substation,they are cable-steel ladder beam,yieldable U-steel... |
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| Keywords: | deep mine soft rock chamber combined support |
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