| 长江三峡链子崖危岩体裂缝发育特征及其形成动力学机理 |
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| 引用本文： | 陈明是,张树淮,陈生,何龙清.长江三峡链子崖危岩体裂缝发育特征及其形成动力学机理[J].地球学报,1992,13(1):97-107. |
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| 作者姓名： | 陈明是 张树淮 陈生 何龙清 |
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| 作者单位： | 宜昌地质矿产研究所;宜昌地质矿产研究所;宜昌地质矿产研究所;宜昌地质矿产研究所 |
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| 摘 要： | 本文以力学分析为指导,以研究链子崖危岩体裂缝与先成构造(节理、断层)的关系为主线,在重点阐明裂缝承袭先成构造发育基本特征的基础上,总结了裂缝的空间分布和排列组合规律,提出了由于危岩体基脚大面积采煤掏空岩体自重不均匀下沉座滑引起岩体重心偏向陡崖临空面的重力趋向和地面(地形)坡向的重力趋向,垂直二重力合力趋向产生重力卸荷拉张的动力学机理。
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THE DEVELOPMENT CHARACTERISTICS OF THE FISSURES OF LIANZIYA HAZARDOUS ROCK MASS AND ITS DYNAMICS MECHANISM IN THE THREE GORGES DISTRICT OF THE YANGTZE RIVER |
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| CHEN Ming-shi,ZHANG Shu-huai,CHEN Sheng and HE Long-qing.THE DEVELOPMENT CHARACTERISTICS OF THE FISSURES OF LIANZIYA HAZARDOUS ROCK MASS AND ITS DYNAMICS MECHANISM IN THE THREE GORGES DISTRICT OF THE YANGTZE RIVER[J].Acta Geoscientia Sinica,1992,13(1):97-107. |
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| Authors: | CHEN Ming-shi ZHANG Shu-huai CHEN Sheng and HE Long-qing |
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| Institution: | Yichang Institute of Geology and Mineral Resources, CAGS;Yichang Institute of Geology and Mineral Resources, CAGS;Yichang Institute of Geology and Mineral Resources, CAGS;Yichang Institute of Geology and Mineral Resources, CAGS |
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| Abstract: | In this paper, the authors have applied geomechanics to summation of the spatial distribution and arrangement of fissures in the Lianziya hazardous rock mass, based on the fundamental characteristics of fissures following antecedent structures and feature of different types of networks formed by fissures. Moreover, the paper has also put forward a new dynamics mechanism to hazardous rock mass in the area. The hazardous rock mass is considered to be formed by stress release gravity pull, which resulted from the combination of main free gravitational tendency caused by coal mining, secondary gravitional tendency of inclined ground, and vertical gravity. |
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