钱海涛, 谭朝爽, 孙强, 薛雷. 2010: 西南某地中缓倾角结构面成因机制与工程地质特性. 工程地质学报, 18(S1): 53-59.
    引用本文: 钱海涛, 谭朝爽, 孙强, 薛雷. 2010: 西南某地中缓倾角结构面成因机制与工程地质特性. 工程地质学报, 18(S1): 53-59.
    QIAN Haitao, TAN Chaoshuang, SUN Qiang, XUE Lei. 2010: FORMATION MECHANISM AND ENGINEERING GEOLOGICAL PROPERTIES OF MIDDLE-LOWER DIP ANGLE DISCONTINUITIES OF AN AREA IN SOUTHWEST, CHINA. JOURNAL OF ENGINEERING GEOLOGY, 18(S1): 53-59.
    Citation: QIAN Haitao, TAN Chaoshuang, SUN Qiang, XUE Lei. 2010: FORMATION MECHANISM AND ENGINEERING GEOLOGICAL PROPERTIES OF MIDDLE-LOWER DIP ANGLE DISCONTINUITIES OF AN AREA IN SOUTHWEST, CHINA. JOURNAL OF ENGINEERING GEOLOGY, 18(S1): 53-59.

    西南某地中缓倾角结构面成因机制与工程地质特性

    FORMATION MECHANISM AND ENGINEERING GEOLOGICAL PROPERTIES OF MIDDLE-LOWER DIP ANGLE DISCONTINUITIES OF AN AREA IN SOUTHWEST, CHINA

    • 摘要: 中缓倾角结构面的存在是重要坝基地质缺陷之一,对中缓倾角结构面发育规律、成因及其物理力学特性及其对坝基稳定性影响的研究,可以为设计工作提供可靠的依据。通过对我国西南某水电站中缓倾角结构面发育特征的深入分析,在结合地质背景的基础上探讨了中缓倾角结构面成因及演化过程。同时结合地质条件利用极限平衡方法针对坝基可能出现的滑动破坏模式进行了计算分析,表明坝基是稳定的。

       

      Abstract: Middle-lower angle structural plane is one of important geological flaws,analysis on the formation mechanism and physical and mechanical characteristics of middle-lower angle structural plane,which can offer reliable evidence to constructions of projects.Taking a hydropower station for example,engineering geological properties of middle-lower angle structural plane are analyzed in detail.Combing with geological phenomena,geological history and earth stress distribution of dam areas are analyzed to obtain the formation mechanism of middle-lower angle structural plane.The probable failure patterns of dam foundation are proposed,and the limit equilibrium method is applied to analyze its stability.The result indicates that the dam is stable.

       

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