复合地基固结性状有限元分析与研究  

Analysis and research on consolidation behavior of composite subgrade by using FEM

作　　者：曹海莹[1] 刘平[2] 赵建波[1] 

机构地区：[1]燕山大学建筑工程与力学学院,河北秦皇岛066004 [2]河北工业大学校园规划处,天津300130

出　　处：《燕山大学学报》2007年第3期253-256,共4页Journal of Yanshan University

摘　　要：采用水泥土搅拌桩为研究对象,对复合地基固结性状进行了有益的探讨。利用有限元计算对弱排水桩复合地基孔压消散的规律进行了分析与研究,得出了桩端处孔压随时间的变化规律,以及不同荷载作用下的孔压分布情况,并通过实测结果得到了进一步验证。据此提出了若干建议性的结论,为解决复合地基固结性状问题提供了一定的理论指导。Consolidation behavior of composite subgrade is discussed by taking cement-soil mixing piles for studied object. The law of pore pressure dissipation in weak drainage-pile composite subgrade is analyzed and studied by using finite element calculation, then the law of pore pressure with time in pile-bottom soils and the distribution of pore pressure under different loads are obtained, which are further validated by actual observation results. Hereby some suggestions are brought forward in this paper, which gives some theory guidance to settle the problem about consolidation behavior of composite subgrade.

关 键 词：弱排水桩 复合地基 孔压消散 有限元计算 

分 类 号：TU471.8[建筑科学—结构工程]