摘要
贵州响水水电站扩机工程1号施工支洞穿过原引水隧洞顶部,两洞相距仅11.0 m。开挖施工中,采取分段微差、控制最大单响药量及短进尺等综合措施,1号施工支洞顺利圆满地穿过原引水隧洞顶部,未影响原引水隧洞的正常运行。
The access tunnel No. 1 for extension of Xiangshui Hyclropower Station passes over the top of the existing headrace tunnel. The distance between two tunnels is 11. Om only. In the blasting operation for excavation, comprehensive measures such as application of dif- ferential nonels, control of maximum charge of single blasting and short excavation section are taken so that the access tunnel No. 1 smoothly and successfully passes over the top of the existing headrace tunnel. The normal operation of the existing heaclrace tunnel is not affected.
出处
《西北水电》
2013年第5期41-44,共4页
Northwest Hydropower
关键词
施工支洞
开挖
爆破
响水水电站
access tunnel
excavation
blasting
Xiangshui Hydropower Station
