基于灰色模糊理论的巷道锚网支护设计与优化
|
摘要
为解决采空区下薄顶煤巷道支护设计中所面临的各种力学问题,通过七因素三水平的正交实验方案,进行了27次数值模拟实验.按照三个评价标准,分别分析了各关键因素对巷道稳定性的影响,并筛选出相应的最优方案.利用灰色模糊理论对巷道支护方案进行了综合评价及整体优化设计.研究中考虑了支护费用及施工时间等成本性指标,分析了巷道支护后围岩的应力变化、位移特征和破坏机理,制定了可行的施工方案.所采用的支护技术在窑街煤电公司天祝矿正式投入使用后,取得良好的经济效益.
In order to solve the mechanical problems during tunnel-supporting design under the mined gob with a thin roof coal seam,orthogonal experiments with 7 factors and 3 levels including 27 numerical simulations were carried out.The influence of the key factors on the tunnel stability was analyzed and corresponding optimized schemes were chosen according to 3 evaluation standards.The grey-fuzzy theory was utilized to make comprehensive evaluation and overall optimizing design.Cost factors such as supporting expense and construction time were considered during the study.The stress transformation,displacement character and failure mechanism of wall rock after support were analyzed,and a feasible construction plan was established.After utilizing the introduced supporting technique formally in Tianzhu Mining Zone of Yaojie Coal-electricity Inc.in China,favorable economical benefit is brought.
In order to solve the mechanical problems during tunnel-supporting design under the mined gob with a thin roof coal seam,orthogonal experiments with 7 factors and 3 levels including 27 numerical simulations were carried out.The influence of the key factors on the tunnel stability was analyzed and corresponding optimized schemes were chosen according to 3 evaluation standards.The grey-fuzzy theory was utilized to make comprehensive evaluation and overall optimizing design.Cost factors such as supporting expense and construction time were considered during the study.The stress transformation,displacement character and failure mechanism of wall rock after support were analyzed,and a feasible construction plan was established.After utilizing the introduced supporting technique formally in Tianzhu Mining Zone of Yaojie Coal-electricity Inc.in China,favorable economical benefit is brought.
引文
[1]袁嘉祖.灰色理论与方法.北京:科学出版社,1991:1
[2]郑宇,刘伟庆,邓民宪.地震直接损失的多因素灰色关联分析.自然灾害学报,2002,11(4):106
[3]黄福昌.兖州矿区煤巷锚网支护技术.北京:煤炭工业出版社,2000:83
[4]宋宏伟.破裂岩石锚固组合拱承载能力及其合理厚度探讨.中国矿业大学学报,1997,26(2):33
[5]李常文,周景林,韩洪德.组合拱支护理论在软岩巷道锚喷设计中应用.辽宁工程技术大学学报,2004,23(5):33
[6]刘文卿.实验设计.北京:清华大学出版社,2005:64
[7]吴顺川,高谦,刘福军.二次动压巷道支护设计与参数优化.北京科技大学学报,2006,28(3):215
[8]石振武,柳鹏.基于模糊数学和灰色关联的工程项目评标方法研究.森林工程,2006,22(1):55
[9]谢秋菊,钱自立.应用灰色模糊综合评价方法优选水库正常蓄水位方案.水利水运工程学报,2006(4):59
[10]李安贵,张志宏,孟艳,等.模糊数学及其应用.北京:冶金工业出版社,2005:125
[2]郑宇,刘伟庆,邓民宪.地震直接损失的多因素灰色关联分析.自然灾害学报,2002,11(4):106
[3]黄福昌.兖州矿区煤巷锚网支护技术.北京:煤炭工业出版社,2000:83
[4]宋宏伟.破裂岩石锚固组合拱承载能力及其合理厚度探讨.中国矿业大学学报,1997,26(2):33
[5]李常文,周景林,韩洪德.组合拱支护理论在软岩巷道锚喷设计中应用.辽宁工程技术大学学报,2004,23(5):33
[6]刘文卿.实验设计.北京:清华大学出版社,2005:64
[7]吴顺川,高谦,刘福军.二次动压巷道支护设计与参数优化.北京科技大学学报,2006,28(3):215
[8]石振武,柳鹏.基于模糊数学和灰色关联的工程项目评标方法研究.森林工程,2006,22(1):55
[9]谢秋菊,钱自立.应用灰色模糊综合评价方法优选水库正常蓄水位方案.水利水运工程学报,2006(4):59
[10]李安贵,张志宏,孟艳,等.模糊数学及其应用.北京:冶金工业出版社,2005:125
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心