土工合成材料在桩承式加筋路堤中的应用现状

摘要

分析了路堤中设置土工格栅对路堤工作性状的影响；分析了土工格栅在桩承式加筋路堤中的具体作用机理；分析了土工格栅对荷载分担比和桩土应力比的影响以及土工格栅对路堤表面不均匀沉降的作用。综合分析后提出了土工格栅在桩承式加筋路堤应用中存在的几个问题。%The influence of geogrid setting in embankment on its working behavior is analyzed here, and the acting mechanism of geogrid in pile-supported reinforced embankment is analyzed, such as its tensioned membrane effect, property characteristics and so on. Then, the impacts of geogrid on pile efficacy and pile-soil stress ratio as well as the action of geogrid on the differential settlement of embankment surface are analyzed and mentioned. Some problems in the application of geogrid in pile-supported reinforced embankment are put forward after the comprehensive analyses.