桥台、涵台、挡土墙三背回填质量,将直接影响公路通车后的行车安全和舒适度,改变传统压实度控制方法,采用HHT-3高速液压夯实机对已经完成2m高的台背回填,按一定的间距密度布点进行再次夯实,可有效提高台背回填的承载力,消除因施工后沉降及施工过程中的碾压功效不足问题,并一定程度上缓解高速公路运营过程中桥头跳车问题。 The abutment, culvert, retaining wall backfill quality will directly affect the traffic safety and comfort after the opening of the road, changing the traditional compaction control method, the use of HHT-3 high-speed hydraulic compaction machine has been completed 2m high Taiwan Backfill, according to a certain density of density distribution point again to compaction, which can effectively improve the backfill bearing capacity, to eliminate due to construction after the settlement and the lack of rolling compaction problems, and to some extent ease the bridge during the operation of the highway Jumping car problem.