高填方路基沉降预测的半数值半解析方法  

A Semi-Analytical and Semi-Numerical Method for Settlement Prediction to High Filling Embankment

作　　者：刘赪炜[1] 韩煊[1] 陈昌彦[1] 贾亮[1] 

机构地区：[1]北京市勘察设计研究院有限公司,北京100038

出　　处：《地下空间与工程学报》2011年第3期491-496,共6页Chinese Journal of Underground Space and Engineering

基　　金：北京市优秀人才培养专项资助项目(2008F-13)

摘　　要：根据高填方路基施工过程和沉降的特点,基于对北京某工程的天然地基、藕塘抛石挤密、CFG桩、夯扩载体桩和天然地基与CFG桩的混合地基等典型地基的7个典型断面实测数据的分析,提出一种适用于工程应用的半数值半解析方法。本方法充分利用数值模拟方法能够模拟复杂地基类型,传统解析方法能够考虑时间和加载条件的优点,预测高填方路基施工期间和工后的沉降。该方法应用简便,可用于分析各种型式的地基填方工程,具有较强的实用性,能够为工程施工、建设和维护提供可靠的依据和建议。On basis of the construction process for high embankment and its settlement character,with the measured data of 7 typical embankments of a project in Beijing,such as natural foundation,CFG pilled foundation,etc,a semi-analytical and semi-numerical method is put forward.This method can make the best advantage of numerical method simulating complex type of foundation and analytical method with considering the loading time and condition.The settlement during and after construction can be predicted.This method is simple to use,and can be used to analyze different foundations.It can offer the reliable base for advice to the construction and maintenance of a project.

关 键 词：高填方路基 半数值半解析方法 沉降预测 

分 类 号：TU470.3[建筑科学—结构工程]