路基工程Issue(2)：96-98,101,4.
软土地基处理沉降计算中相关参数的试验研究
Experimental Study on Related Parameters in Settlement Calculation of Soft Foundation
张在保1
作者信息
- 1. 中铁第四勘察设计院集团有限公司,武汉,430063
- 折叠
摘要
Abstract
Through site test on high-speed railway soft foundation with dry jet mixing pile, deep jet mixing pile, vacuum preloading, plastic drain surcharge and sand pile surcharge, the settlement caused by compression layer thickness and lateral displacement as well as its correction factor are studied.The result shows that it is reasonable to use stress ratio method ( Δp/p0 ≤ 0.1 ) to calculate the thickness of compressed layer.Total settlement of foundation will be largely reduced by reinforcement of mixing pile.In addition, there is a certain difference between mean value calculated by correction factors specified by various standards and measured value.However, the settlement calculated by " m" value stipulated by national standard is closest to predicted value through actual measurement.关键词
高速铁路/软土地基/沉降/压缩层厚度/沉降修正系数Key words
high-speed railway/ soft foundation/ settlement/ thickness of compression layer/ settlement correction factor分类
建筑与水利引用本文复制引用
张在保..软土地基处理沉降计算中相关参数的试验研究[J].路基工程,2011,(2):96-98,101,4.
