雅砻江两河口水电站地下厂房241.00m通风竖井施工技术

Construction Techniques for the 241 m Long Ventilation Shaft in the Underground Powerhouse of Lianghekou Hydropower Station in Yalong River

介绍了雅砻江两河口水电站地下厂房竖井施工技术,包括工程的施工难点、施工方案和程序、安全监测及施工安全措施等,解决了该工程开挖深度大(241 m)、局部稳定性差、施工安全风险大、导孔钻孔孔斜难以控制等难题,保证了工程质量。

Construction techniques for the 241 m long ventilation shaft in the underground powerhouse of Lianghekou Hydropower Station are introduced, including the construction scheme and procedures, safety monitoring and construc- tion safety measures. Construction difficulties due to the deep excavation, local instability, high construction risk and deflection control are successfully resolved and the construction quality is ensured.