The Research on Test Method of Laboratory Subgrade Coefficient

Zhang Junjie; Guo Zhen; Zhang Lihong

doi:10.3969/j.issn.1007-2993.2017.06.005

Volume 31 Issue 6

Jul. 2021

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Zhang Junjie, Guo Zhen, Zhang Lihong. The Research on Test Method of Laboratory Subgrade Coefficient[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2017, 31(6): 289-293. doi: 10.3969/j.issn.1007-2993.2017.06.005

Citation:

Zhang Junjie, Guo Zhen, Zhang Lihong. The Research on Test Method of Laboratory Subgrade Coefficient[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2017, 31(6): 289-293. doi: 10.3969/j.issn.1007-2993.2017.06.005

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The Research on Test Method of Laboratory Subgrade Coefficient

doi: 10.3969/j.issn.1007-2993.2017.06.005

Ningbo Metallurgical Investigation Design Research Co., Ltd, Ningbo 315211, Zhejiang, China

Received Date: 2017-08-08
Available Online: 2021-07-06

Abstract

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.
- coefficient of subgrade reaction,
- consolidation test,
- riaxial test,
- modifier formula