摘要
基于某滨海地区高速公路软土路基的施工过程,采用有限元软件midasGTS建立数值计算模型,结合工程实测数据,对分阶段填筑过程的沉降变形规律进行了深入分析。结果表明,在路基分阶段填筑的过程中,填土加载引起土体内部超孔隙水压力的变化,进而从另一角度反应出土体固结的速率;随着分阶段填筑高度的增大,路基沉降量也随之增大;通过软件模拟不同的填筑高度,对填筑过程的沉降量进行预测,在此基础上对施工进度进行调整可缩短工期。
Based on the construction process of soft-soil subgrade in a coastal area, a numerical model was established by using the finite element software Midas GTS. Based on the measured data of the project, the settlement laws of the phased filling process are analyzed in detail. The results show that during the phased filling of subgrade, the excess pore water pressure of the soil is changed by the filling loading, and the rate of consolidation of the soil is also reflected from another angle. With the increase of the phased filling height, the settlement of subgrade is increased also. Through software simulation of different filling heights, the settlement of the filling process is predicted. Based on this, the construction schedule can be adjusted to shorten the construction period.
作者
张玥
赵泽蔚
许有俊
刘慧玲
ZHANG Yue;ZHAO Ze-wei;XU You-jun;LIU Hui-ling(School of civil engineering, Inner Mongolia University of science and technology, 014010, Baotou, Inner Mongolia, China;HighwayBureau of Baotou City, 014040 , BaoTou, Inner Mongolia, China)
出处
《建筑技术》
2019年第5期573-575,共3页
Architecture Technology
基金
内蒙古自治区高等学校科学研究项目(NJZY14167)
关键词
软土
填方路基
固结沉降
超孔隙水压力
soft-soil
embankment
consolidation settlement
excess pore water pressure
