摘要
本文针对长河坝水电站地下厂房规模大、地应力高、缓倾角裂隙及"人"字形不稳定体突出的特点,从开挖通道、通风散烟、钻孔导向定位、深孔预裂、开挖安全稳定、顶拱锚索快速施工、安全监测、施工验收等方面总结了有关开挖施工技术。
Changheba Hydropower Station underground powerhouse is characterized by large scale, high ground stress, low angle crack and prominent herringbone instable body. Related excavation construction techniques are summed up in the paper in the aspects of channel excavation, ventilation smoke removal, drill guide positioning, deep hole pre-eracking, excavation security and stability, rapid construction of crown anchor, safety monitoring, construction inspection, etc. aiming at these characteristics.
出处
《中国水能及电气化》
2013年第12期9-14,共6页
China Water Power & Electrification
关键词
地下厂房
开挖
护工技术
underground powerhouse
excavation
protection technology
