软土地基高填方桥台新设计

A New Design for High Fill Bridge Abutment on the Soft Ground

软土地基高填方灌注桩桥台，由于软土不均匀沉降和产生朝台前的水平塑性流动，导致柔性的桥台桩柱出现位移、开裂等问题，为此作者提出了桥台边跨采用组合刚构的结构形式设计。通过实桥试验使用，并经长期观测，完全达到预期设计的效果。

This article states that the high fill concrete pile bridge abutment on the soft ground, because of the uneven subsidence of the soft soil, which will produce plastic level flow towards ahead of the abutment, the flexible abutment pile has a tendency to slippage or break up. Through observing the experimental bridge, which is designed by combined rigid structure in side span, the expected design effect has been obtained.