落锤式弯沉仪在路基冲压效果检验中的应用

Application of Falling Weight Deflectometer in Testing for Pavement Impact Compaction

将落锤式弯沉仪(FW D)成功地用于路基冲击压实效果的检验.通过对砂土和粘土两种不同土质路基的冲击压实效果的分析,验证了冲击压实的深层压实效果,发现粘土比砂土的冲压效果好.找出了冲击压实的最佳压实遍数,为冲击压实施工技术提供了参考.

The falling weight deflectometer(FWD)is used to evaluate the effectiveness of the impact compactor.By the analysis of the compact effectiveness on clay and sandy soils,it is proved that impact compaction is good for compacting the subgrade in deep depth and the effect on clay is better than that on sandy soil.The optimum passes of impact compaction is also described, which can be referenced by the implement of impact compaction technique.