中国西南岩石高边坡的主要特征及其演化

doi:10.11867/j.issn.1001-8166.2005.03.0292

地球科学进展 ›› 2005, Vol. 20 ›› Issue (3): 292 -297. doi: 10.11867/j.issn.1001-8166.2005.03.0292

中国西南岩石高边坡的主要特征及其演化

黄润秋

成都理工大学地质灾害防治与地质环境保护国家专业实验室，四川成都 610059

收稿日期:2003-10-29 修回日期:2004-08-16 出版日期:2005-03-25
基金资助:
国家自然科学基金项目“西部生态与环境”重大研究计划项目“中国西部物碳地质环境条件形成机理及其工程环境效应研究”（编号：90102002）资助

MAIN CHARACTERISTICS OF HIGN ROCK SLOPES IN SOUTHWESTERN CHINA AND THEIR DYNAMIC EVOLUTION

HUANG Runqiu

National Laboratory of Geohazards Prevention, Chengdu University and Technology, Chengdu 610059, China

Received:2003-10-29 Revised:2004-08-16 Online:2005-03-25 Published:2005-03-25

下载PDF ( 1410 )

岩石高边坡是山区工程建设的主要地质环境和工程承载体，尤其是在我国西南地区，高边坡问题几乎成了重大工程建设的首要工程地质和岩土工程问题。结合西南地区地质环境的特点，分析和总结了该地区岩石高边坡发育的主要特征，认为边坡高陡、地应力量级高、具有复杂的变形历史构成了这一地区高边坡有别于一般的特殊性。提出了描述工程高边坡环境的超高系数的概念、区域高地应力环境的形成机理、河谷高边坡应力场特征和发育模式。从河谷发育的动力学过程出发，提出了自然河谷高边坡发育的三阶段理论，即表生改造、时效变形和失稳破坏。

关键词: 中国西南, 岩石高边坡, 应力场模式, 变形破坏演化

High rock slopes are a kind of very common geological bodies to be being the environment or bearing layers of engineering structures in southwestern China. They show some distinguished characteristics being different from general rock slopes because of the special geological background in this area. According to the data from a lot of field investigation, they can be characterized as super height, high geostress and complicated deformation and failure evolution process. The author gives an index called as over high ratio to describe the environment effect from the slope height. A theoretical geostress distribution model in deep valley is established, which reveals the “hump” pattern of geostress in high rock slopes. From the view of dynamic mechanism, a three-stage model is suggested to describe the dynamic evolution process such as epigenetic recreation, time-dependent deformation and failure. Furthermore, the author gives out the transferring conditions of different stages and basic laws of vertical classification of dynamic process development in deep valleys.

Key words: Southwestern China, High rock slope, Geo-stress distribution model, Deformation and failure evolution

中图分类号:

P642.2

[1] Huang Runqiu, Wang Shitian, Zhang Zhuoyuan,et al. Epigentical Process of the Earth Crust in Southwestern China and Engineering Environmental Effects [M].Chengdu: Sichuan University Press, 2002. [黄润秋,王士天,张倬元,等.中国西南地壳浅表层动力学过程与工程环境效应研究 [M].成都：四川大学出版社,2002.] 
[2] Huang Runqiu, Zhang Zhuoyuan, Wang Shitian. Systematic Engineering Geology Study on High Rock Slopes [M]. Chengdu: Chengdu University of Science and Technology Press, 1991. [黄润秋,张倬元,王士天.高边坡稳定性的系统工程地质研究 [M].成都：成都科技大学出版社,1991.] 
[3] Wang Shitian, Huang Runqiu, Li Yusheng. A Study on the Key Engineering Geological Problems at Jiping Hydropower Station, Yalong River [M].Chengdu: Chengdu University of Science and Technology Press, 1995. [王士天,黄润秋,李渝生.雅砻江锦屏水电站重大工程地质问题研究 [M].成都：成都科技大学出版社,1995.] 
[4] Zhang Zhuoyuan, Wang Shitian, Wang Lansheng. Principles of Engineering Geology [M]. Beijing: Geological Publishing House, 1981. [张倬元,王士天,王兰生,工程地质分析原理 [M].北京：地质出版社,1981.] 
[5] Wang S T, Huang R Q.Numerical simulation study of rock core disking [A]. In: Proceeding of the 6th Congress of IAEG [C]. Rotterodam:A. A. Balkema,1990.789- 796. 
[6] Wang Lansheng, Zhang Zhuoyuan. Basic geomechanics models of slope deformation and failure [A].In: Discussion of Hydrogeology and Engineering Geology [C].Beijing: Geological Publishing House, 1983. [王兰生,张倬元.斜坡岩体变形破坏的基本地质力学模式 [A].见：水文工程地质论丛 [C].北京：地质出版社,1983.] 
[7] Wang Sijing. Deformation mechanism and process of slopes in Jinchuan open pit mine [J]. Journal of Geotechnique, 1982, 4(3):45- 61. [王思敬.金川露天矿边坡变形机制及过程 [J],岩土工程学报, 1982, 4(3): 45-61.] 
[8] Lo K Y, Wai R S C. Time dependent deformation of shaly rocks in southern Ontario [J]. Canadian Geotechnique, 1978, 15(2)：233- 240. 
[9] Broadbent C D, Ko K C.Rheology aspects of rock slope failure [A]. In: Proceeding of the 13th Symposium on Rock Mechanics [C].Illionis,1971. 537- 572. 
[10] Zhang Z Y, Huang R Q. Epigenetic recreation of rockmass structure and time- dependent deformation [A]. In: Proceeding of the 6th Congress of IAEGE [C]. Rotterdam:A. A. Balkema, 1990. 2 065- 2 072. 
[11] Huang Runqiu, Xu Qian. Process simulation and control of geologic hazards [J]. Progress in Natural Science, Taylor & Francis, 1999, 9(9): 642- 647.

[1]	何大明;吴绍洪;彭华;杨志峰;欧晓昆;崔保山. 纵向岭谷区生态系统变化及西南跨境生态安全研究[J]. 地球科学进展, 2005, 20(3): 338-344.

阅读次数

全文

摘要