摘要
反映金宜公路钱资荡软基段,变560m特大桥为100m大桥,其余460m采用反压护道处理的办法。根据路堤稳定性验算和沉降量计算结果,确定路基填土的速率,进行施工过程中的沉降观测,同时估算了预抛高厚度和最终沉降量。这种处理方法可降低工程造价1500余万元,取得较好的经济效益,阐明在地方一级公路施工中可采用时间换金钱软基处理的方法。
This paper introduces a method which changesa 560 meters bridge into a bridge of 100 meters and a back berm of 460 meters in soft foundation section of Qianzidang in Jin-Yi highway.According to the results of embankment stabilization checking and settlement computing,this paper determines the speed of embankment filling,carries settlement observation through the embankment construction,also computing approximately the advance height of lifting and final settlement of embankment.This method can save more than CNY 15 million engineering cost and obtain better economic benefits.It expatiates on a method,in the local arterial highway,on dealing with soft foundation which can exchange time for money.
出处
《公路交通科技》
CAS
CSCD
北大核心
2004年第2期26-28,36,共4页
Journal of Highway and Transportation Research and Development
关键词
反压护道
路堤
稳定
沉降
Back berm
Embankment
Stabilization
Settlement
