摘要
南欧江六级水电站导流洞洞径大,隧洞处于板岩地区,围岩呈薄层状结构,节理、裂隙及构造发育,围岩稳定性差。通过采取调整进出口施工方案、及时支护、引排地下水、控制固结灌浆质量等一系列措施后,保证了施工的正常进行。
The diversion tunnel with a large diameter in Nam Ou 6 Hydropower Station locates in slate area. Because the surrounding rock is lamellar structure and the joints, cracks and structure are developed, the stability of tunnel surrounding rock is poor. By adjusting the construction programs of tunnel＇s inlet and output, supporting timely, discharging groundwater and controlling the quality of consolidation grouting, the normal excavation of diversion tunnel is ensured.
出处
《水力发电》
北大核心
2016年第5期71-73,共3页
Water Power
关键词
导流洞
施工技术
南欧江六级水电站
老挝
diversion tunnel
construction technology
Nam Ou 6 Hydropower Station
Laos
