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冲击压实是解决土基深层压实问题的新型压实技术,但其压实效果却难以用传统方法进行评价。文章提出采用落锤式弯沉仪(FWD)检测评价路基冲击压实效果。通过FWD检测不同压实遍数下路基的弯沉,并基于弯沉盆数据反算路基不同深度处的模量,从而对冲击压实效果进行评价;通过分析不同压实遍数下模量的变化,提出了最佳冲压遍数的确定方法。
Impact compaction is a new compaction technique to solve the problem of deep compaction of soil foundation, but its compaction effect can not be evaluated by traditional methods. In this paper, the drop impact deflection (FWD) test is used to evaluate the subgrade impact compaction effect. By means of FWD, the deflection of embankment under different compaction times was detected, and the modulus at different depths of the embankment was calculated back based on the data of deflection basin to evaluate the impact compaction effect. By analyzing the modulus of different compaction times Change, put forward the best way to determine the number of stamping.