| 三峡引水工程秦巴段主要地质灾害及其工程影响 |
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| 引用本文： | 石玲,张永双,石菊松.三峡引水工程秦巴段主要地质灾害及其工程影响[J].工程地质学报(英文版),2009,17(2):212-219. |
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| 作者姓名： | 石玲 张永双 石菊松 |
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| 作者单位： | 中国地质科学院地质力学研究所 北京 100081 |
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| 基金项目： | 中国地质调查局研究项目 |
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| 摘 要： | 为了研究三峡引水工程秦巴段的地表地质灾害特征及其工程影响，本文在简要分析秦巴山地区域工程地质条件和线路工程地质条件的基础上，重点分析秦巴山区典型地质灾害分布特征及其对引水工程的影响，初步揭示:(1)秦巴山区浅表层地质灾害具有类型多、成群带分布、规模大小差异明显；(2)秦巴山区地质灾害形成发展的主要影响因素是构造地貌、高陡边坡、斜坡结构和易滑地层组合，主要诱发因素为局部集中强降雨和线性工程（主要是公路）切坡及河流冲蚀作用；(3)地表地质灾害主要影响引水设施施工安全、施工便道、主要场地（水库和渡槽）等的安全，需要引起重视。
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| 关 键 词： | 三峡引水工程 区域工程地质条件 地质灾害 秦巴山区 |
SURFACE GEOHAZARDS AT QINLING-DABA MOUNTAIN AND IMPACT ON THREE GORGES WATER DIVERSION PROJECT |
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| SHI Ling,ZHANG Yongshuang,SHI Jusong.SURFACE GEOHAZARDS AT QINLING-DABA MOUNTAIN AND IMPACT ON THREE GORGES WATER DIVERSION PROJECT[J].Journal of Engineering Geology,2009,17(2):212-219. |
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| Authors: | SHI Ling ZHANG Yongshuang SHI Jusong |
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| Institution: | Geomechanics Institute of China Geological Sciences, Beijing 100081 |
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| Abstract: | This paper investigates the characteristics of surface geological hazards and their impacts on the Three Gorges Water Diversion Project in the section of the Qinling-Daba mountain region. It gives a brief analysis of the regional and linear engineering geological conditions. It focuses on the analysis of characteristics of the distribution of geological hazards and their impacts on the water diversion project. At present, the following are found: (1) there are many types of shallow surface geological hazards with cluster and belt distribution characteristics and different volumes in Qinling-Daba mountain region; (2) the main diagnostic factors of Qinling-Daba mountain geological hazards are tectonic landscape, high and steep slopes, slope structure and landslide-prone combination of stratigraphy. The main triggering factors are concentration of the heavy rainfall, linear projects (mainly roads) slope-cutting and erosion; (3) the main impacts of surface geological hazards on the water division project are the safety of water facilities and related road construction, the reservoir and aqueduct sites, on which attention should be paid. |
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