Three-dimensional numerical simulation of treatment of arch dam foundation

PENG Yun-feng; HE Yun-long; CAO Xue-xing

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Three-dimensional numerical simulation of treatment of arch dam foundation

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- Three-dimensional numerical simulation of treatment of arch dam foundation
- Vol. 29, Issue S1, (2008)
- 作者机构：
  
  武汉大学水资源与水电工程科学国家重点实验室,武汉,430072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB115
- Online First：15 April 2016，
  
  Published：2008
- 稿件说明：
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PENG Yun-feng, HE Yun-long, CAO Xue-xing. Three-dimensional numerical simulation of treatment of arch dam foundation[J]. 2008, 29(S1).
DOI：

PENG Yun-feng, HE Yun-long, CAO Xue-xing. Three-dimensional numerical simulation of treatment of arch dam foundation[J]. 2008, 29(S1). DOI：

摘要

天然的坝基中总是存在不同程度的地质缺陷，坝基的加固处理是大坝建设的重要内容。应用三维有限元数值模拟方法，采用模拟岩石体渐进破坏过程的超载法和强度折减法，对含软弱夹层的拱坝坝基在加固前后的安全度给出了定量的结果，对加固措施的效果作出了定量的评价，并根据计算对比分析对加固设计进行细部优化，使其达到最佳效果，可为坝基加固处理设计提供直接依据。研究表明，通过采用有限元数值模拟方法，对坝基岩石体的安全性可以定量地做出评价，具有明显的优越性。

Abstract

Geological defects always exist in natural foundation more or less. The foundation treatment is a significant component in dam construction. Based on three-dimensional finite element method

the failure process of dam foundation with weak interlayer is studied with overload method and strength reduction method respectively; the quantitative results of the foundation safety are gotten by comparing with before and after foundation treatment to show the treatment effect. Comparing the treatment effect of each design scheme

the optimum design scheme is obtained. The calculation results show that the quantitative results of the foundation safety can be computed by the finite element method; and the approach has obvious advantages.

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