锦屏一级左岸垫座以下坝基地质缺陷初步评价

刘明 黄润秋 严明 林锋 霍俊杰

刘明, 黄润秋, 严明, 林锋, 霍俊杰. 2010: 锦屏一级左岸垫座以下坝基地质缺陷初步评价. 工程地质学报, 18(6): 933-939.
引用本文: 刘明, 黄润秋, 严明, 林锋, 霍俊杰. 2010: 锦屏一级左岸垫座以下坝基地质缺陷初步评价. 工程地质学报, 18(6): 933-939.
LIU Ming, HUANG Runqiu, YAN Ming, LIN Feng, HUO Junjie. 2010: PRELIMINARY EVALUATION OF GEOLOGICAL DEFECTS FOR ROCK FOUNDATION BELOW LEFT BANK PEDESTAL OF ARC DAM FOR JINPING Ⅰ POWER-STATION. JOURNAL OF ENGINEERING GEOLOGY, 18(6): 933-939.
Citation: LIU Ming, HUANG Runqiu, YAN Ming, LIN Feng, HUO Junjie. 2010: PRELIMINARY EVALUATION OF GEOLOGICAL DEFECTS FOR ROCK FOUNDATION BELOW LEFT BANK PEDESTAL OF ARC DAM FOR JINPING Ⅰ POWER-STATION. JOURNAL OF ENGINEERING GEOLOGY, 18(6): 933-939.

锦屏一级左岸垫座以下坝基地质缺陷初步评价

基金项目: 

雅砻江水电开发联合研究基金重点项目(50539050)

详细信息
    作者简介:

    刘明,地质工程专业.Email: 89478698@qq.com

  • 中图分类号: TV221.2

PRELIMINARY EVALUATION OF GEOLOGICAL DEFECTS FOR ROCK FOUNDATION BELOW LEFT BANK PEDESTAL OF ARC DAM FOR JINPING Ⅰ POWER-STATION

  • 摘要: 锦屏一级左岸垫座以下发育的不良地质单元,不仅破坏其岩体的完整性,而且可能导致建基面抗变形能力的不均匀性,以致对坝基岩体带来不良影响,危及拱坝安全。立足于坝基岩体质量环境,将垫座以下不良地质体划分为内倾顺层构造带,陡倾切层构造带,溶蚀裂隙带等三大综合缺陷类型,并阐述了各类缺陷的性状及其对坝基完整性、均匀性、变形性等方面的控制作用,分析了其典型声波曲线的波速量值及衰减特征。由此,按轻度、中等、强烈三个等级,定性的分区评价了各部位缺陷对坝基岩体的影响程度。着重认为f2断层附近,规模较大、间距较小、波速值低(2500-3500m s-1)的内倾顺层构造带,不仅控制着岩体的抗剪性能,而且对坝基变形分异和基地应力分布存在强烈影响,应对其进行单独处理。
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出版历程
  • 收稿日期:  2010-03-27
  • 修回日期:  2010-06-05
  • 刊出日期:  2010-12-25

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