| 品字形房柱式采空区开采地表移动规律 |
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| 引用本文： | 李海清,向龙,贾宏宇. 品字形房柱式采空区开采地表移动规律[J]. 地下空间与工程学报, 2011, 7(3): 541-546 |
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| 作者姓名： | 李海清 向龙 贾宏宇 |
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| 作者单位： | 1.四川省交通厅公路规划勘察设计研究院,成都 610031;2.西南交通大学,成都 610031 |
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| 摘 要： | 榆神高速公路全长约88 km,路经5个煤矿采空区。采空区均由品字形房柱式开采而成,埋深介于10至120 m之间,房柱宽度和间距最小为6 m,最大15 m。采用FLAC3D对其中埋深较小的前阳湾煤矿采空区进行模拟,模型开采埋深为地表下17~20 m ,研究了品字形房柱式采空区地表移动基本规律、地表动态变形规律以及煤柱的受力情况等。关于房柱式采空区地表移动规律等的研究国内还未见报道,因此本文对以后类似工程具有一定的指导和借鉴意义。
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| 关 键 词： | 房柱式采煤 地表移动 动态变形 煤柱受力 |
| 收稿时间： | 2010-12-05 |
The Laws of Surface Movement in the Pin-pillar Style Mining Goaf Area |
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| Li Haiqing,Xiang Long,Jia Hongyu. The Laws of Surface Movement in the Pin-pillar Style Mining Goaf Area[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(3): 541-546 |
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| Authors: | Li Haiqing Xiang Long Jia Hongyu |
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| Affiliation: | 1.Highway Planning Survey, Design Research Institute of Sichuan Province Communications Department, Chengdu 610031, China; 2.Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | Yushen freeway,which passes through 5 mined goafs,is about 88 km long.All the goafs buried underground at a depth of 10 to 120 meters are formed by Pin-pillar style mining.The length between every 2 pillars ranges from 6 to 15 meters.Taking Qianyangwan mine goaf,a relatively shallow one,as an example,this paper employs FLAC3D to study the general laws of its surface movement,dynamic deformation,and capacity of the pillars.There is few research on the laws of surface movement of Pin-pillar style mined goaf a... |
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| Keywords: | room and pillar mining surface movement dynamic deformation capacity of coal pillars |
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