摘要
以珠海横琴岛多联供燃气能源站项目地基处理工程为算例,基于修正剑桥模型及考虑软土的渗透特性,利用ABAQUS软件对二维平面应变真空–堆载联合预压问题进行了数值模拟,对软土竖向沉降、孔隙水压力以及水平位移分布等进行了分析,并与实测值进行了对比.从计算结果可知,由于加固机理的不同,真空–堆载联合预压加固软土地基有更好的加固效果.
A soft clay consolidation project by using vacuum-surcharge preloading method was conducted inZhuhai about two year ago,and finite element numerical analysis under two-dimensional plane strain condition,inwhich modified Cam model and soft clay permeating characteristics are considered,is finished in details for theproject,with corresponding calculating results such as soft clay vertical settlement,horizontal displacement,andpore water pressure,et al.beengiven and compared with the project measuring results.Based on the calculationresults,the vacuum-surcharge preloading method for the soft clay has a better consolidation effect in practicebecause of its effective consolidation mechanism.
作者
徐朝阳
刘明
胡舒之
杨雪强
Xu Chao-yang;Liu Ming;Hu Shu-zhi;Yang Xue-qiang(Zhuhai-Hengqin Electrical Co. Ltd., of China Electrical Investment Group Company, Zhuhai 519031, China;Shenzhen Municipal Design and Research Institute Co. Ltd., Shenzhen 518029, China;School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China)
出处
《广东工业大学学报》
CAS
2017年第1期31-39,共9页
Journal of Guangdong University of Technology
基金
中国电力投资集团公司科技项目(2014-028-NFD-KJ-X)
关键词
真空–堆载预压
修正剑桥模型
数值分析
固结机理
vacuum-surcharge preloading
modified Cam model
numerical analysis
consolidation mechanism
