| 北京大台井深部岩巷岩爆发生条件及影响因素 |
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| 引用本文： | 张永利,李忠华,陈德怀.北京大台井深部岩巷岩爆发生条件及影响因素[J].中国地质灾害与防治学报,2006,17(3):84-86. |
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| 作者姓名： | 张永利 李忠华 陈德怀 |
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| 作者单位： | 1. 辽宁工程技术大学力学与工程科学系,阜新,123000
2. 北京吴华集团股份有限公司,北京,102000 |
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| 基金项目： | 国家自然科学基金重大项目(50490275)资助 |
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| 摘 要： | 大台井岩爆类型为巷道围岩表部岩石破碎爆裂弹射的混合应力型。随采深增加,岩爆的烈度等级加大。岩爆的发生存在一个临界深度。影响岩爆的因素极为复杂。主要有地应力、岩石的结构与性质、开挖(开采)的深度、硐室开挖的形状及尺寸、地质构造与地形地貌、人工爆破等。岩石质地坚硬,结构完整是影响大台井岩爆的基本因素。埋深较大,造成铅垂地应力较高。煤层急倾斜,地质构造特殊,水平地应力较高。构造应力参与是其重要因素。
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| 关 键 词： | 岩爆 烈度 临界深度 构造应力 北京大台矿井 |
| 文章编号： | 1003-8035（2006）03-0084-03 |
| 收稿时间： | 2005-07-08 |
| 修稿时间： | 2005-08-18 |
Formation conditions and affecting factors of rock burst in deep rock lane of Datai Well, Beijing |
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| ZHANG Yong-li,LI Zhong-hua,CHEN De-huai.Formation conditions and affecting factors of rock burst in deep rock lane of Datai Well, Beijing[J].The Chinese Journal of Geological Hazard and Control,2006,17(3):84-86. |
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| Authors: | ZHANG Yong-li LI Zhong-hua CHEN De-huai |
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| Institution: | 1. Department of Mechanics and Engineering Sciences, Liaoning Technical University, Fuxin 123000, China ; 2.Haohua Group Company Ltd., Beijing 102000, China |
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| Abstract: | Rock burst type in Datai Well belongs to a mixed stress type that the surface rock breaks up,bursts and ejects.The rock burst break intensity will be stronger with the increasing of excavating depth.There is a critical depth for rock burst to occur.The factors affecting rock burst are complex,including underground stress,construction and property of rock,excavating depth,shape and size of chamber,structural geology,geomorphology and man-made explosion etc.Hard rock and integrated structure in Datai Well are basic factors of rock burst.Deep excavation,high stress,sharp slope of coal seam,special structural geological condition,high horizontal stress and constructive stress are important factors. |
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| Keywords: | rock burst intensity critical depth constructed stress Datai Well Beijing |
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