桥头搭板的室外试验研究  

Experimental study outdoor of bridge-head approach slabs

作　　者：王代[1,2] 王勇智[1] 

机构地区：[1]中州大学,河南郑州450000 [2]郑州大学新型建材与结构研究中心,河南郑州450002

出　　处：《河南城建学院学报》2012年第3期5-9,19,共6页Journal of Henan University of Urban Construction

基　　金：河南省高校创新人才基金项目(9412007Y1105)

摘　　要：为真实得到搭板+无砂小桩综合处治方法下搭板的受力性能及对桥头病害的治愈效果,进行搭板室外原型静载试验研究。试验结果表明:搭板下满布无砂小桩的处理方案消除桥头跳车病害的效果更好,台后填土越高,这种削减作用越明显,对于软土地基效果更好。Combining the actual projects, approach slabs are set in two different support ways. To get the difference of two treatments,prototype test outdoor was carried out. Test results prove that under the test load, vertical displacement of approach slabs beneath which the whole roadbed treated with non-sand mlni-piles is smaller than that of approach slabs beneath which only roadbed below sleep-beam is treated with non-sand mini-piles, which suggests that the effect of the former is better for eliminating the bump at bridge-head.

关 键 词：桥头跳车 搭板 变形性能 室外试验 支撑桩 

分 类 号：U416.1[交通运输工程—道路与铁道工程]