基床系数室内测试方法研究
摘要:通过对宁波轨道交通基坑开挖范围内典型软土层开展固结试验及三轴试验,得到了各层地基土的基床系数,并将试验值与规范经验值进行对比、分析后,提出了适用于宁波土层的室内试验基床系数修正公式,经修正后得到了各地基土层较为合理的标准基床系数,验证了室内试验测定地基土基床系数的有效性,解决了批量测定地基土基床系数的问题,可为工程设计和施工所使用。
Abstract:Coefficients of subgrade reaction on Ningbo soft soil within the range of metro tunnels excavation were worked out through the way of consolidation tests and triaxial test,and the correction formula of laboratory subgrade coefficient that applicable to Ningbo soil was calculated out by contrasting with experimental results and normative empirical values. Then the standard subgrade coefficient of different foundation soil was got after being amended of the calculation formula, verifying the validity of test method of laboratory subgrade coefficient and solving the problems of determination of batch subgrade coefficient. It can be used for engineering design and construction.
中文标题：
基床系数室内测试方法研究
The Research on Test Method of Laboratory Subgrade Coefficient
作者：
张俊杰,郭桢,张丽红
Zhang Junjie,Guo Zhen,Zhang Lihong
作者简介:张俊杰,男,1966年生,大学本科,正高级工程师,注册土木工程师(岩土),主要从事岩土工程勘察、设计、管理工作。E-mail:420896262@qq.com
通讯地址：
宁波冶金勘察设计研究股份有限公司, 浙江宁波 315211
NingboMetallurgicalInvestigationDesignResearchCo.,Ltd,Ningbo315211,Zhejiang,China
中图分类号:TU411
doi:10.3969/j.issn.1007-2993.2017.06.005
出版物：岩土工程技术
收稿日期:2017-08-08
网络出版日期:2021-07-06
关键词:基床系数,固结试验,三轴试验,修正公式
Key words:coefficient of subgrade reaction,consolidation test,riaxial test,modifier formula
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