土工格栅处治加宽高填方路堤试验分析  

Test analysis on geogrid treatment widening high fill embankment

作　　者：王家全[1] 李磊[1] 王宇帆[1] 朱存金[1] 

机构地区：[1]广西科技大学(筹)土木建筑工程学院,广西柳州545006

出　　处：《广西工学院学报》2013年第1期75-78,93,共5页Journal of Guangxi University of Technology

基　　金：国家自然科学基金项目(51009030);广西自然科学基金项目(2011GXNSFB018003);广西工学院博士基金项目(院科博1011)资助

摘　　要：结合山区公路改扩建工程,进行了土工格栅处治加宽高填方路堤的现场试验,分析了高填方加筋路堤的位移、应力和筋材的应变规律.研究结果表明:土工格栅处治高填方新老路堤,其最大位移出现在新路堤中上部,新路堤自身压缩变形较为明显.格栅受力加筋为一个渐进的过程,土工格栅从路堤边缘向路堤中心逐渐发挥加筋作用.The field test of the geogrid treatment widening the high fill embankment of the mountain highway reconstruction project is carried out. And the laws of high fill reinforced embankment displacement, stress, and reinforcement strain are analyzed. The results show that in the geogrid treatment high fill new and old embankment, the largest displacement appears on the middle and top of the new embankment, and the new embankment compression deformation is obvious. Geogrid reinforced effect is a gradual process, and geogrid from the embankment edge to the embankment center gradually plays a reinforced role.

关 键 词：土工格栅 加宽路堤 沉降 土压力 

分 类 号：TU45[建筑科学—岩土工程]