优质高效建设珊溪水库工程

为优质高效建设珊溪水库工程，对导流方案、施工进度、围堰结构型式、面板混凝土配合比等进行了优化。例如，工程截流时间提前一年，原计划一个枯水期完成的工程项目为两个枯水期完成，使计划切实可行；上游围堰采用塑性混凝土的渗墙，下游围堰采用高喷板墙与塑性混凝土防渗墙结合，上下游围堰均采用过水围堰；混凝土面板采用补偿收缩混凝土防裂技术；优化泄洪洞衬砌混凝土标号；厂房屋面结构采用网架结构等。通过这些措施，达到了方

Constructing the Sanxi Reservoir Project with high quality and efficiency

The diversion schemes, construction progress, cofferdam structure types, the mix proportion of face slab concrete have been optimized in order to construct the Sanxi Reservoir Project with high quality and efficiency. For example, the river closure for the project was completed one year ahead of time. The project will be completed within two low water seasons instead of one low water season in the original plan, which makes the plan more practical. The upstream and downstream cofferdams all are overflow type but the former adopts plastic concrete cut off wall and the later combines the high pressure shotcrete plate wall with plastic concrete cut off wall. The concrete face slab uses the anti crack technology of compensation shrinkage concrete. The concrete grade for lining flood releasing tunnel also has been optimized. The roof structure for powerhouse adopts the grid structure. All these measures make the project achieve the results of easy construction, high quality, fast progress and investment saving. Meanwhile the project was put into generation ahead of time and gained good economic benefits.