某高速公路桥涵台背回填材料选择及特性研究

Research on the selection of backfill materials and features of back of bridges and culverts on expressways

着重探讨了高速公路桥涵台背回填材料的选择及回填材料的级配、密实度及强度等工程特性,并通过试验进行了分析,从而降低台背填土和桥涵构造物的不均匀沉降以及"桥头"跳车的危害。

The paper mainly explores the selection of the backfill materials for the back of bridges and culverts on expressways and the gradation, compactness and strength of the backfill materials, and undertakes the analysis by experiments, so as to reduce the uneven settlement of the filled earth of the culverts and the components of the bridges and the danger of the bumping at bridge-head.