池潭水电站扩建工程爆破对已建大坝安全影响分析  

Influence of blasting on the existing dam during the expansion of Chitan hydropower station

作　　者：陈念辉 郑硕 徐德芳 CHEN Nianhui;ZHENG Shuo;XU Defang(PowerChina Huadong Engineering Co.,Ltd.)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122 [2]国家水电站大坝安全和应急工程技术中心,浙江杭州311122

出　　处：《大坝与安全》2021年第6期21-27,共7页Dam & Safety

摘　　要：池潭水电站扩建工程施工期爆破可能会影响紧邻的池潭水电站大坝、发电厂房及开关站的安全运行。通过三维动力有限元计算确定池潭水电站重要建筑物的爆破振动动力响应。计算结果表明,施工期工程爆破会对已有大坝的运行产生一定影响,但可以通过控制爆破参数和安全防护等措施保证主要保护建筑物的安全。During the expansion of Chitan hydropower station,the blasting may affect the adjacent dam,powerhouse and switching station.In this paper,the important structures'dynamic response to blasting vibration is determined by three-dimensional dynamic finite element calculation.The results show that the safety of existing dam can be ensured by control of blasting parameters and by other protection measures in the process.

关 键 词：大坝安全 爆破振动 影响分析 

分 类 号：TV651.1[水利工程—水利水电工程]