摘要
对高速铁路桩-筏复合地基设计计算研究现状进行综述,主要讨论了共同作用分析法的概念和应用,并分析其存在的主要问题。褥垫层作用的精确分析与模拟,以及与筏板、桩、土耦合共同作用的机理与模式的研究,是今后高速铁路桩-筏复合地基设计计算研究的发展方向;针对高速铁路路基结构及荷载特点,提出恰当的计算模型也是高速铁路桩-筏复合地基设计计算研究的重要任务。
The paper summarized the status quo of design calculation research of pile-raft composite foundation for high-speed railway with the concept and application of interaction analysis method discussed and the main issues analyzed herein. It pointed out that the trend of development is the accurate analysis and simulation of the role of cushion, as well as the study on the mechanism and mode of the interaction between the cushion, raft, pile and soil. Furthermore, in relation to the structure and loading characteristics of high-speed railway subgrade, establishing a proper calculating model is an important task as well.
出处
《路基工程》
2013年第5期5-9,14,共6页
Subgrade Engineering
关键词
高速铁路
桩-筏复合地基
设计计算
共同作用分析法
褥垫层
计算模型
high-speed railway
pile-raft composite foundation
design calculation
interaction analysismethod
cushion, calculating model
