青银高速公路桥头强夯施工技术

Experience from the Bridgehead Construction with Power Tamping in Qinghai-Yinchuan Expressway

基沉降差异是影响地基稳定性的主要因素之一,是引起高速公路桥头跳车的主要原因,文章提出了高等级公路柔性地基的处理方法,介绍了地基强夯法的技术参数、施工过程及要求。

The difference of road base subsiding is the main factor affecting the base＇ s stability, and the main cause of car - jump at bridgeheads of expressways. This article has proposed measures to deal with soft base and introduced technological indexes, construction process and requirements of power tamping on the base.