摘要
白鹤滩水电站右岸尾水隧洞出口围堰拆除爆破具有环境复杂、石方开挖量大、作业时段受限和安全风险突出等特点。介绍了围堰拆除爆破所采用的“子堰临时挡水与围堰分区瘦身相结合”的精细化分区方案、主要爆破参数以及实施效果。
Demolition blasting of outlet cofferdam of tailrace tunnel on the right bank of Baihetan Hydropower Station is characterized by complicated environment,large quantity of rock excavation,limited working period and outstanding safety risk.This paper describes a fine zoning scheme combining temporary water retaining of cofferdam with slim cofferdam zoning,main blasting parameters and implementation effect for cofferdam demolition blasting.
作者
曾理
周涛
彭正良
张俊学
ZENG Li;ZHOU Tao;PENG Zheng-liang;ZHANG Jun-xue(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)
出处
《云南水力发电》
2022年第11期183-187,共5页
Yunnan Water Power
关键词
尾水隧洞
围堰拆除
爆破
安全风险
tailrace tunnel
cofferdam demolition
blasting
safety risk
