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由于我国填石路堤研究起步较晚,其压实质量检测技术处于探索阶段。为了充分利用PFWD操作简便、价格相对低廉、精度较高和能模拟汽车荷载作用的特点,有必要将PFWD引入到填石路堤压实质量检测中。文章通过PFWD弯沉和动回弹模量现场测试,并进行BB弯沉测试结果和压实度测试结果分析,研究PFWD应用于填石路堤压实检测的适应性。结果表明:填石路堤LPFWD与其LBB、压实度均存在显著的线性相关性,可以用LPFWD间接进行填石路堤施工质量控制和进行整体强度评价。
Due to the late start of the rockfill embankment in China, the compaction quality testing technology is under exploration. In order to take full advantage of the PFWD is simple, relatively inexpensive, accurate and can simulate the role of vehicle load, it is necessary to introduce PFWD into the compaction quality testing of rockfill embankment. In this paper, the field tests of PFWD deflection and dynamic modulus of resilience were carried out. The results of BB deflection test and compaction test were analyzed to investigate the applicability of PFWD in compaction testing of rock fill embankment. The results show that there is a significant linear correlation between the LPFWD of embankment and its LBB and compaction degree. The LPFWD can be used to indirectly control the embankment construction quality and evaluate the overall strength.