龙滩水电站地下引水发电系统混凝土施工技术浅析

Analysis on Concrete Construction Techniques for Underground Water Diversion and Power Generation System of Longtan Hydropower Station

龙滩水电站地下引水发电系统混凝土工程具有规模大、结构体形复杂、质量要求高等特点,在混凝土施工过程中,采用了斜竖井全断面滑模技术、免装修混凝土施工技术、蜗壳混凝土浇筑技术、隧洞底拱翻模技术、特大型断面边顶拱混凝土衬砌施工技术等,这些技术的应用较好地完成了混凝土施工。

The underground water diversion and power generation system of Longtan Hydropower Station is huge in size, complex in structure and body type and high in quality requirements. In the construction of concrete, many construction techniques are adopted,such as full-face slip-form technique in inclined shaft ,no-fitment concrete construction technique scroll case concrete pouring technique,overtum-form technique for tunnel bottom arch,and concrete lining technique for sida and top arches of oversize-section tunnel.All these techniques are well applied to the concrete construction.