刘美山,张正宇,李永池,赵根
LIU Mei-shan~(1,2), ZHANG Zheng-yu~1, LI Yong-chi~2, ZHAO Gen~(1,2)(1. Yangtze River Science Institute,Wuhan 430010, Hubei,China;2.University of Science and Technology of China,Hefei 230027,Anhui,China)

• 1:长江科学院
• 2:长江科学院
• 3:中国科学技术大学
• 4:长江科学院 武汉430010中国科学技术大学合肥230027

摘要(Abstract)：

导流洞围堰拆除是电站截流的关键,本次爆破方量大,距离保护物近,且工况条件复杂。爆破设计采用了高单耗、低单响的思路,使用了高精度雷管。总装药量16 4t,最大单响药量150kg,平均单耗1 49kg/m3,各被保护物的质点振动速度均控制在10cm/s以下,成功地完成了导流隧洞进口围岩的爆破拆除。
Demolition of cofferdam of water diversion tunnel was a critical procedure in diverting water from Goupitan hydropower station.As viewed from its enormous blasting cubage,complicated conditions,as well as the relative close distance between the cofferdam to be blasted and the object to be protected the high unit consumption and low charge in a time were used.The total charges were 16.4t of dynamite(averaged 1.49kg/m³ of dynamite consumption)and the most single fire dynamite was 150kg in the present blasting demolition project. The demolition of cofferdam of water diversion tunnel was successfully removed. The base particle vibration velocity in the objects protected was controlled below 10cm/s.

关键词(KeyWords)： 水电站;导流洞;围堰;爆破拆除
Hydropower station; Water diversion tunnel; Cofferdam; Blasting demolition

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 刘美山,张正宇,李永池,赵根
LIU Mei-shan~(1,2), ZHANG Zheng-yu~1, LI Yong-chi~2, ZHAO Gen~(1,2)(1. Yangtze River Science Institute,Wuhan 430010, Hubei,China;2.University of Science and Technology of China,Hefei 230027,Anhui,China)

参考文献(References)：

• 〔1〕张正宇,张文,吴新霞,李长生 现代水利水电工程爆破[M] 北京:中国水利水电出版社,2003
• 〔2〕张文煊,张正宇,凡昌宇,等 大朝山水电站导流洞围堰及岩坎爆破拆除[J] 爆破,2000(增刊):207-210
• 〔3〕郭士明,王文辉,刘华,等 大朝山水电站尾水出口围堰爆破拆除测试研究[J] 水利发电,2001(12):26-29