摘要
某工程为典型的大型低坝长隧洞引水式水电站,其3号引水隧洞沿线工程地质条件十分复杂,各洞段所受主要外荷载为外水压力,施工期分洞段埋设监测仪器,至今已观测15年时间。观测成果表明隧洞沿线外水压力总体小于设计推测值,仅出口洞段外水压力略大于设计推测值,需加强监测和放空检查。
The project is a diversion type hydropower station with a typical large low dam and long tunnel, whose No.3 diversion tunnel has complex engineering geological conditions. The main external loads of each tunnel section are external water pressure. Monitoring instruments are constructed at each tunnel section during the construction period, which have been monitored for about 15 years. The monitoring results show that the external water pressure of the tunnel is smaller than the design value generally, except for that of outlet tunnel section is bigger than the design value, which shall be emptied for inspection.
出处
《红水河》
2016年第2期41-45,共5页
Hongshui River
关键词
引水隧洞
外水压力
监测
水电站
diversion tunnel
external water pressure
monitoring
hydropower station
