复杂地质条件下东庄特高拱坝坝趾加固措施研究
Research on Reinforcement Measures for Toe of Dongzhuang High Arch Dam Under Complicated Geological Conditions
聂章博 1杨军义 1王惠芹1
作者信息
- 1. 黄河勘测规划设计研究院有限公司,河南 郑州 450003
- 折叠
摘要
特高拱坝的起裂、屈服和失稳破坏等主要来源于拱坝坝踵和坝趾等应力集中区域,尤其是坝趾处可能发生压剪损伤,该部位岩体稳定和基础加固决定着拱坝的安全度.基于东庄水利枢纽工程特高拱坝,结合基于变形加固理论的三维弹塑性有限元整体变形分析成果与地质力学模型试验成果,提出了东庄水利枢纽工程特高拱坝坝趾加固设计方案.
Abstract
The cracking,yielding,and instability failure of ultra-high arch dams mainly originate from stress concentration areas such as the heel and toe of the arch dam,especially the possibility of compressive shear damage at the toe.The stability of the rock mass and foundation reinforcement in this area determines the safety of the arch dam.This article was based on the Dongzhuang Water Conservancy Project's ultra-high arch dam,combined with the overall deformation analysis results of three-dimensional elastic-plastic finite element based on deformation reinforcement theory and the results of geomechanical model tests,and proposed a reinforcement design scheme for the ultra-high arch dam toe of the Dongzhuang Water Conservancy Project.
关键词
复杂地质/变形加固/拱坝坝趾/加固措施Key words
complicated geological/deformation reinforcement/arch dam toe/reinforcement measures引用本文复制引用
基金项目
中国博士后科学基金面上项目(2022M721299)
出版年
2024
国家科技期刊平台
NSTL
万方数据