西南水电高陡岩石边坡工程关键技术研究

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摘要我国西南地区山高谷深，水力资源丰富，高坝大库工程较多。由于特定的地形地质条件，高陡边坡稳定问题突出，成为制约水电资源开发和工程建设的关键技术问题之一。立足于西南水电岩石边坡工程实践，结合边坡工程科研成果，总结分析边坡工程的主要技术特点和关键技术问题，提出边坡工程研究思路和研究内容；在此基础上，从边坡地质条件、设计理论与方法、实施过程控制等方面，对边坡深裂缝成因、坡体结构、参数取值、安全控制标准、加固设计方法、反馈分析等若干关键技术问题，进行一些探索，提出一些新的认识。研究成果在水电工程边坡设计和建设过程中得以成功应用，特别是由深卸荷松弛岩体组成的锦屏一级特高边坡(530 m)和大岗山特高边坡(420 m)实施效果良好，对边坡工程勘察设计和岩石力学理论研究具有借鉴意义。

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关键词 ：水电工程, 高陡边坡, 深卸荷, 坡体结构, 稳定分析, 安全标准, 加固设计, 反馈分析

Abstract：There is rich hydroelectric resource in Southwest China with high mountains and deep canyons，and many hydropower projects with high dams and large reservoirs are located in this area. Due to specific topographic and geological condition，stability of the complex high slopes in these projects has become one of the key technical problems which restrict the effective development of hydroelectric resource and project construction. Taking the hydropower project practice in Southwest China into consideration and combining the corresponding research achievements，main technical features and key problems of slope engineering have been summarized and analyzed，and research approaches and contents of rock engineering has been brought forward. On this basis，some new ideas and methods such as genesis of deep fissures in slope，slope structure，parameter values，safety criterion，reinforcement design method，feedback analysis，etc. have been put forward from several aspects including geological condition，slope engineering design theory，and construction process controlling，etc. These methods and theories have been successfully applied in the design and construction of slopes in hydropower projects. Particularly，the extremely high slopes in Jinping I project(530 m) and Dagangshan project(420 m) consisting of deep unloading and relaxation rock masses have been successfully constructed. These research achievements bear beneficial reference significance to the investigation and design of slope engineering and the development of rock mechanics.

Key words： hydraulic engineering high and steep slope deep unloading slope structure stability analysis safety criterion reinforcement design feedback analysis

收稿日期: 2009-12-31

引用本文:

宋胜武，冯学敏，向柏宇，邢万波，曾勇. 西南水电高陡岩石边坡工程关键技术研究[J]. 岩石力学与工程学报, 2011, 30(1): 1-22.
SONG Shengwu，FENG Xuemin，XIANG Baiyu，XING Wanbo，ZENG Yong. RESEARCH ON THE KEY TECHNOLOGIES FOR HIGH AND STEEP ROCK SLOPES OF HYDROPOWER ENGINEERING IN SOUTHWEST CHINA. , 2011, 30(1): 1-22.

链接本文:

http://www.rockmech.org/CN/Y2011/V30/I1/1

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