中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊
Journal of Chongqing Jiaotong University(Natural Science)

Journal of Chongqing Jiaotong University(Natural Science) ›› 2005, Vol. 24 ›› Issue (6): 104-107.

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Preliminary research on formation and long-term stability of cliff along the bank of the Three gorges reservoir

TANG Hong-mei1, WANG Chang-xian1, CHEN Hong-kai1,2, YE Si-qiao1   

  1. 1. Inst. of Geotechnical Engineering, Chongqing Jiaotong University, Chongqing 400074, China;
    2. Key Lab. For the Exploitation of Southwestern Resources & the Environmental Disaster Control Engineering, Ministry of Education, Chongqing University, Chongqing 400044, China
  • Received:2004-11-16 Revised:2005-01-07 Online:2005-12-15 Published:2016-11-09

三峡库区陡崖形成及长期稳定性初步研究——以万州区太白岩为例

唐红梅1, 王昌贤1, 陈洪凯1,2, 叶四桥1   

  1. 1. 重庆交通学院 岩土工程研究所, 重庆 400074;
    2. 重庆大学 西南资源开发及环境灾害控制工程教育部重点实验室, 重庆 400044
  • 作者简介:唐红梅(1968-),女,重庆市合川人,副研究员,硕士生导师,主要从事地质灾害与岩土工程研究
  • 基金资助:
    交通部跨世纪人才专项基金项目(95050508);西部交通项目(200332822047);交通部重点科技基金项目(95060233);高等学校重点实验室访问学者基金

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Abstract: Cliff is common landform in mountainous area, resources of unstable rock disaster to develop too. Taking Taibaiyan cliff, locating in Wanzhou in the Three Gorges Reservoir region, as an example, authors approach formation process of cliff through bond mechanism of unstable rock in this paper, and point out that cliff is the inevitable results for unstable rock to develop. Parameters between link-ratio of control fissure of unstable rock and Young's modulus and damage degree of unstable rock are presented. Calculate method of creep stability time of micro-bond for unstable to develop is set up in aging constitute equation of rock, specially appraise method of long-term stability of cliff is provided too. The results show that stability time of micro-bond of the cliff is 891~15904 years, and unstable rock will develop gradually in next 80 thousands years.

Key words: cliff, unstable rock, bond mechanism, long-term stability, appraise method

摘要： 陡崖是山丘地区常见的地貌景观,是危岩灾害孕发的起源地.以三峡库区万州区太白岩陡崖为例,笔者运用危岩发育链式机理探讨了陡崖的形成过程,指出陡崖是危岩链式发育的必然结果.得到了危岩主控结构面连通率与弹性模量及危岩体损伤度之间的相关参数,运用岩石蠕变时效本构关系建立了危岩微观链蠕变稳定时间计算式,初步建立了陡崖长期稳定性预测方法.初步得到了太白岩陡崖微观链稳定时间在891~15904年之间,在8万年内将会有危岩体逐渐发育的结论.

关键词: 陡崖, 危岩, 链式机理, 长期稳定性, 预测方法

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