| 极近距离采空区下交错开采顶板灾害防治 |
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| 引用本文： | 蒲志强,车明,张磊,刘德利. 极近距离采空区下交错开采顶板灾害防治[J]. 山东科技大学学报(自然科学版), 2009, 28(4) |
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| 作者姓名： | 蒲志强 车明 张磊 刘德利 |
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| 作者单位： | 淄博矿业集团,岱庄煤矿,山东,济宁,272175;淄博矿业集团,岱庄煤矿,山东,济宁,272175;淄博矿业集团,岱庄煤矿,山东,济宁,272175;淄博矿业集团,岱庄煤矿,山东,济宁,272175 |
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| 摘 要： | 通过对岱庄煤矿4300采区工作面的顶板结构分析,得出了上部极近距离煤层开采后,下部煤层顶板形成极易漏冒的"块体-散体-梁"结构.采用数值模拟方法对下部工作面超前支承压力和上部采空区侧向支承压力共同作用下的高应力状态进行了模拟,结果表明,工作面前方煤体易失稳变形.针对工作面过采区前及采空区下开采易出现的顶板灾害事故,提出了工作面局部充填等相应的解决方案.
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| 关 键 词： | 极近距离 采空区 破坏规律 顶板灾害 |
Prevention and Control of Roof Disasters in Staggered Mining under the Goaf Ultra-close to Seam Being Mined |
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| PU Zhi-qing,CHE Ming,ZHANG Lei,LIU De-li. Prevention and Control of Roof Disasters in Staggered Mining under the Goaf Ultra-close to Seam Being Mined[J]. Journal of Shandong Univ of Sci and Technol: Nat Sci, 2009, 28(4) |
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| Authors: | PU Zhi-qing CHE Ming ZHANG Lei LIU De-li |
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| Affiliation: | Daizhuang Coalmine;Zibo Mining Group;Jining;Shandong 272175;China |
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| Abstract: | Through the analysis of roof structure in No.4300 Coalface of Daizhuang Coalmine,the authors believe that the roof in lower seam will form the "block-bulk-beam" structure easy to fall after the mining of top ultra-close seam.The simulation of high stress states under the interaction of the lead abutment pressure in lower face and the side abutment pressure in upper goaf was made by means of the numerical simulation.The results showed that the coal body at the front of coalface was easily to become unstable ... |
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| Keywords: | ultra-close goaf failure law roof disaster |
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