| 龙桥铁矿采空区顶板岩层移动及冒落规律研究 |
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| 引用本文： | 江文武,丁铭,张耀平,卢志刚.龙桥铁矿采空区顶板岩层移动及冒落规律研究[J].矿业研究与开发,2011(3):17-19,39. |
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| 作者姓名： | 江文武 丁铭 张耀平 卢志刚 |
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| 作者单位： | 江西理工大学应用科学学院;龙桥矿业有限公司; |
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| 摘 要： | 采用FLAC-3D对龙桥铁矿采空区顶板岩层移动及冒落规律进行了模拟研究,研究结果表明：整个采空区的顶板岩层移动比较平缓、稳定,矿区整体失稳的概率小;回采完-342.5分段3_5线矿体后,采空区顶板围岩的垂直下降变形及应力出现较为明显的变化,此时顶板围岩出现冒落迹象;0-2线附近矿体对采空区顶板岩层移动及冒落规律有着重要...
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| 关 键 词： | 采空区 岩层移动 FLAC 顶板冒落 |
Study on the Movement and Caving Laws of Roof strata of Mined-out area in Longqiao Iron Mine |
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| JIANG Wenwu,DING Ming,ZHANG Yaoping,LU Zhigang.Study on the Movement and Caving Laws of Roof strata of Mined-out area in Longqiao Iron Mine[J].Mining Research and Development,2011(3):17-19,39. |
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| Authors: | JIANG Wenwu DING Ming ZHANG Yaoping LU Zhigang |
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| Affiliation: | JIANG Wenwu1,DING Ming2,ZHANG Yaoping1,LU Zhigang1(1.Jiangxi University of Science and Technology,Ganzhou,Jiangxi,341000,China,2 Longqiao Mining Co.Ltd,Anhui Lujiang,510640,China) |
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| Abstract: | Simulation study on the movement and caving laws of the roof strata of mined-out area in Longqiao iron mine was carried out by FLAC-3D.The results showed that: the roof strata of the whole mined-out area moved relatively flat,stable,the overall instability of the mining area is an event of small probability;After the ore stoping of-342.5 sublevel near the 3_5 line finished,more significant changes occurred in vertical deformation and stress of the roof rock of the mined-out area,here,the signs of roof rock ... |
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| Keywords: | Mined-out area Strata movement FLAC Roof caving |
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