摘要
为探究10%水泥稳定港区软土的动力特性,本文采用Abaqus有限元软件分别建立动三轴试件模型和实体道路模型,分析港区软土及水泥稳定港区软土在循环动荷载作用下的动应力及竖向位移变化规律。研究表明:(1)相同围压、相同动应力幅值下,10%水泥稳定港区软土的最大竖向动应力发生衰减,动应力幅值越大,最大竖向动应力衰减幅度越大;(2)不同动应力幅值下,水泥稳定后的动三轴试件的最大竖向位移均有显著降低,为稳定前试件的10%左右;(3)10%水泥稳定港区软土作为道路路床,具有良好的动应力扩散及抵抗竖向变形的能力。因此,可以10%水泥稳定港区软土作为港区道路的路床材料。
In order to explore the dynamic characteristics of soft soil in 10%cement stabilized port area,Abaqus finite element analysis software was used to establish dynamic triaxial specimen model and solid road model respectively,and the dynamic stress and vertical displacement of soft soil and cement stabilized soft soil in port area under cyclic dynamic load were analyzed.The research shows that:(1)under the same confining pressure and the same dynamic stress amplitude,the vertical maximum vertical dynamic stress of soft soil in 10%cement solidified port area attenuates.The larger the dynamic stress amplitude is,the larger the maximum vertical dynamic stress attenuation is.(2)Under different dynamic stress amplitudes,the maximum vertical displacement of the dynamic triaxial specimen after cement solidification is greatly reduced,which is about 10%of the specimen before solidification.(3)Using 10%cement solidified soft soil in port area as road bed,it has good dynamic stress diffusion and resistance to vertical deformation.Therefore,10%cement can be used to solidify the soft soil in the port area as the road bed material of the port road.
作者
王文辉
韩新声
成宇
蔡江波
刘洋
申家豪
高善鹏
WANG Wenhui;HAN Xinsheng;CHENG Yu;CAI Jiangbo;LIU Yang;SHEN Jiahao;GAO Shanpeng(China State Construction Port Engineering Group Co.,Ltd.,Qingdao Shandong 266000,China;Shandong Jianzhu University,Jinan Shandong 250101,China)
出处
《交通节能与环保》
2025年第6期91-95,共5页
Transport Energy Conservation & Environmental Protection
关键词
道路工程
数值模拟
Abaqus有限元
水泥稳定港区软土
动力特性
road construction
numerical simulation
Abaqus finite element
cement stabilized soft soil in port area
dynamic characteristics
