科技创新与应用2024，Vol.14Issue(16)：73-77,5.DOI:10.19981/j.CN23-1581/G3.2024.16.017
滨海软土路基承载变形特性数值模拟研究
摘要
Abstract
In order to analyze the bearing and deformation characteristics of coastal soft soil roadbed during the construction of underground passage,taking the supporting traffic construction project of Shanghe Avenue in Jiaozhou City of Qingdao as the background,a three-dimensional numerical calculation model of the open section of underground passage is established by using finite element software.The settlement change law of soft soil roadbed,the maximum shear stress on the surface of box culvert and the vertical stress of soil during the construction of the main structure of underground passage are studied.The results show that the subgrade settlement mainly occurs in the filling part,the settlement displacement on both sides of the main structure of the underground passage is larger,and the horizontal displacement mainly occurs at the foot of the slope and the connection between the main structure and the fill;the settlement displacement on both sides of the main structure increases by the same extent with the increase of filling height.The maximum shear stress of the front row piles at the bottom of the main structure is the same at a certain depth under the soil,and the vertical stress curve of the soil is in the shape of"W"as a whole,and increases with the increase of the filling height,in order to provide reference for the construction of the main structure of underground passageway similar to coastal soft soil roadbed.关键词
滨海软土路基/地下通道/承载变形/沉降/最大剪应力Key words
coastal soft soil roadbed/underground passage/bearing deformation/settlement/maximum shear stress分类
交通工程引用本文复制引用
马思涛,刘元强,吴绍娟,王鹏华,刘亚楠,李华聪,叶毓磊,孙浩..滨海软土路基承载变形特性数值模拟研究[J].科技创新与应用,2024,14(16):73-77,5.基金项目
山东省路桥集团有限公司科学基金项目(2023gcb-shsfq-fw-001) （2023gcb-shsfq-fw-001）
