普宜水库大坝斜墙黏土填筑料含水率控制方法探讨

Discussion on Water Content Control Method of Clay Filling Material forInclined Wall of Puyi Reservoir Dam

针对普宜水库黏工程所在地年平均降水日数多,土料场黏土料含水率过高引起施工难度大的问题,对黏土料采取松动土层翻晒、深沟排水等措施处理后,含水率依然偏高。对此,结合工程项目所在地的情况,采用掺砂的方式降低黏土料的含水率,有效解决了填筑过程中出现的“弹簧土”问题,对工程的按时完工起到了极大的作用。

In view of the problem that the average annual precipitation days of Puyi reservoir clay project are many and the water content of clay material is too high in the earth material yard,the water content of clay material is still high after taking measures such as turning over the loose soil layer and deep ditch drainage.In this regard,combined with the situation of the project location,the method of sand mixing is adopted to reduce the moisture content of clay materials,which effectively solves the problem of"spring soil"in the filling process,and plays a great role in the timely completion of the project.