| 地下采空区顶板安全厚度的确定 |
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| 引用本文： | 甄云军,陈开翔,刘应发,胡杰. 地下采空区顶板安全厚度的确定[J]. 化工矿物与加工, 2007, 36(9): 19-20,36 |
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| 作者姓名： | 甄云军 陈开翔 刘应发 胡杰 |
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| 作者单位： | 贵州宏福实业开发有限总公司,贵州,福泉,550501;贵州宏福实业开发有限总公司,贵州,福泉,550501;贵州宏福实业开发有限总公司,贵州,福泉,550501;贵州宏福实业开发有限总公司,贵州,福泉,550501 |
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| 摘 要： | 利用强度折减技术和二分法原理,以塑性区的贯通作为顶板破坏的标准,当采空区顶板的安全系数等于1.2时,利用FLAC软件计算得出各种跨度空区在不同岩层中的最小安全顶板厚度.
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| 关 键 词： | 地下采空区 全顶板厚度 FLAC 强度折减技术 |
| 文章编号： | 1008-7524（2007）09-0019-02 |
| 修稿时间： | 2007-01-19 |
Determination of roof safety thickness for underground mined-out area |
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| ZHEN Yun-jun,CHEN Kai-xiang,LIU Ying-fa,HU Jie. Determination of roof safety thickness for underground mined-out area[J]. Industrial Minerals and Processing, 2007, 36(9): 19-20,36 |
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| Authors: | ZHEN Yun-jun CHEN Kai-xiang LIU Ying-fa HU Jie |
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| Affiliation: | Guizhou Hongfu Industry Development General Gompany, Fuquan Guizhou, 550501 China |
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| Abstract: | According to roof safety factor of 1.2 for the mined-out area,mlnimum safety roof thickness at different rock in various span mined-out area was calculated by FLAC software,which transfixion of plastic zone was taken as criteria of roof breakage by using strength reduction technology and dichotomy theory. |
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| Keywords: | underground mined-out area entire roof thickness FLAC strength reduction technology |
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