摘要
一座水电站的大型出线竖井深度488.5 m,断面直径14.0 m,采用矿井法正向开挖方案,施工的关键是做好井口防护,控制爆破,监测井壁土层的变形,及时用锚杆加固及注浆,再衬砌井壁混凝土。
A large out-going line shaft （depth 488.5 m, diameter 14.0 m） of a hydropower station is built in deep bed- ded deposit strata with ＂shaft digging method＂, the important techniques in construction are： （1）making the top shaft well protection; （2）controlling the blasting operation carefully; （3） monitoring the deformation of the shaftwall and strengthening it timely by anchor bars and grouting; （4）going on concrete lining works.
出处
《水电与新能源》
2010年第2期25-26,共2页
Hydropower and New Energy
关键词
深厚堆积层
竖井
矿井法
施工技术
deep bedded deposit
shaft
shaft digging method
construction technique
