交通荷载作用下大粒径土石混合料路堤沉降特性分析  

Analysis on Settlement Characteristics of Embankment with Large-size Soil-rock Mixture under Traffic Load

作　　者：王延忠 刘长瑞 孔振中 赵志朴 冯柏人 WANG Yan-zhong;LIU Chang-rui;KONG Zhen-zhong;ZHAO Zhi-pu;FENG Bai-ren(Shandong Road&Bridge Construction Co.,Ltd.,Jinan,Shandong 250000,China;School of Transportation Engineering,Shandong Jianzhu University,Jinan,Shandong 250101,China)

机构地区：[1]山东省公路桥梁建设有限公司,山东济南2500001 [2]山东建筑大学交通工程学院,山东济南250101

出　　处：《黑龙江交通科技》2022年第6期1-3,共3页Communications Science and Technology Heilongjiang

基　　金：山东省高等学校科技计划项目(J18KA216);山东省住房城乡建设科技计划项目(2017-K2-003)。

摘　　要：京沪高速改扩建莱芜—新泰段第二标段遍布大粒径土石混合料,为了研究其填筑路堤的沉降特性,应用有限元软件Abaqus建立三维分离增建道路模型,考虑车辆荷载作用,分析块石粒径和埋放深度对路堤沉降的影响。结果表明:在规范允许范围内,在上部车辆荷载作用下,块石的粒径及埋放深度越大,路基的竖向稳定性越好。The second bid section of the Laiwu to Xintai section of the Beijing-Shanghai Expressway is covered with large-size soil and rock mixtures.In order to study the settlement characteristics of the embankment filled,the finite element software Abaqus is used to establish a three-dimensional separated additional road model,taking the effect of vehicle load into account.Analyze the influence of stone size and buried depth on embankment settlement.The results show that:within the allowable range of the code,under the load of the upper vehicle,the larger the particle size and buried depth of the boulders,the better the vertical stability of the roadbed.

关 键 词：路堤 大粒径土石混合料 沉降特性 Abaqus 粒径 埋放深度 

分 类 号：U416.1[交通运输工程—道路与铁道工程]