云南水力发电2024，Vol.40Issue(5)：58-61,66,5.DOI:10.3969/j.issn.1006-3951.2024.05.014
某水库大坝保护范围内爆破开挖对大坝结构安全性影响分析
Analysis on the Impact of Blasting Excavation within the Protection Range of a Reservoir Dam on Dam Structural Safety
孔宇田 1李艳娜 2孙卫 1鲍伟 1李永1
作者信息
- 1. 中国电建集团贵阳勘测设计研究院有限公司,贵州 贵阳 550081
- 2. 贵州装备制造职业学院,贵州 贵阳 551400
- 折叠
摘要
Abstract
When the blasting excavation construction is close to the dam,the blasting vibration will inevitably have a certain degree of adverse impact on the structural safety of the dam.Analyzing the impact range and degree of blasting vibration on the safety of dam structures,and providing reasonable suggestions for blasting excavation schemes and dam safety protection during construction are important issues that must be considered in design and construction.Based on the construction of a new water intake and tunnel on the left bank within the protection range of Nanyi Reservoir Dam,a numerical model of the blasting vibration response of a concrete gravity dam is established.The stress characteristics and vibration speed of the dam during the blasting vibration process are analyzed,and the impact of blasting vibration on the safety of the dam structure is evaluated,which has certain reference value for similar blasting excavation projects.关键词
爆破开挖/大坝结构安全/坝体动应力/坝体振速/影响分析Key words
blasting excavation/dam structural safety/dam dynamic stress/dam vibration velocity/impact analysis分类
建筑与水利引用本文复制引用
孔宇田,李艳娜,孙卫,鲍伟,李永..某水库大坝保护范围内爆破开挖对大坝结构安全性影响分析[J].云南水力发电,2024,40(5):58-61,66,5.
