风积沙土路基桥涵施工降水技术  

Dewatering Technology for Construction of Bridges and Culverts on Wind-blown Soil

作　　者：袁玉卿[1] 刘松利[1] 邵慧君[1] 兰旭涛[1] 许海铭[1] 

机构地区：[1]河南大学土木建筑学院,河南开封475004

出　　处：《筑路机械与施工机械化》2011年第1期33-37,10,共5页Road Machinery & Construction Mechanization

摘　　要：0引言 风积沙土沿黄河两岸分布，地下水位较高，塑性指数小，渗透性较好，含水量较大。桥涵的基础部分或全部处于地下水位线以下，为保证干法作业，应做好降水处理。The wind-blown soil spreading along the shores of Yellow River,is of high ground water level,small plasticity index,obvious penetrability and substantial water content.For those bridges and culverts whose foundations are lower than phreatic line,a measure should be conducted to lower the water level.The wellpointing can effectively prevent drift sand, making sure the side slopes are stabilized.

关 键 词：桥涵施工 风积沙 降水技术 土路基 地下水位线 塑性指数 渗透性 含水量 

分 类 号：U212.36[交通运输工程—道路与铁道工程]