【摘要】：為研究路肩式土工格室柔性擋墻受力及變形特點,依托陜西省省道205線子長縣城區(qū)過境段改建工程,開展模型試驗和現(xiàn)場監(jiān)測。模型試驗參考工程原型材料確定試驗?zāi)Ｐ拖嗨票葹?:3,擋墻模型幾何參數(shù)為墻高2 m,墻厚1 m,坡率為1:0.5。通過模型試驗與現(xiàn)場監(jiān)測得到路肩式土工格室柔性擋墻基低壓力、水平土壓力及水平變形的變化規(guī)律。路肩式柔性擋墻基底壓力隨擋墻填筑高度增加而增大,施工完成后略有減小;每一層擋墻墻體格室上的水平土壓力并非均勻分布,擋墻中間水平土壓力擋墻內(nèi)側(cè)水平土壓力擋墻外側(cè)水平土壓力;穩(wěn)定后的水平土壓力和水平變形沿擋墻高度呈鼓形分布,在墻高1/2H處達到最大;采用微分單元法計算擋墻墻背水平土壓力更接近工程實際。
[Abstract]:In order to study the stress and deformation characteristics of flexible retaining wall in shoulder geogrid chamber, the model test and field monitoring were carried out based on the reconstruction project of Zichang County urban transit section of Shanxi Provincial Highway 205. The similarity ratio of the test model is 1 鈮，

本文編號：2473713