粉煤灰水力冲填筑坝技术室内模拟试验研究

Study on Characteristics of Hydraulic Fill Test of Flyash

通过对胜利发电厂粉煤灰水力冲填室内模拟试验,详细介绍了粉煤灰水力冲填试验的方法;研究了粉煤灰在人工扰动加密和平板振动器振密后的压实特性。试验结果表明振动加密法的干密度比人工扰动法的干密度要大;同一加密试验方法下,冲填厚度越小,干密度越大,但干密度之差不大;并且单向排水对水力冲填粉煤灰试验结果影响不大。

In this paper, the method is introduced particularly about flyash hydraulic filling test in ShengLi Power Plant. Compaction characteristic of flyash is studied under artifical disturbance and vibration compression. The test result indicate that dry density of vibration compression is bigger than dry density of artifical disturbance. Under the same method, the thickness of hydraulic filling is smaller, the dry density is bigger, but both difference is not great, and unilateral drainage has a little influence to the result of flyash hydraulic filling test.