NDLI: Orthogonal test and regression analysis of the strain on silty soil in Shanghai under metro loading

Content Provider	Springer Nature Link
Author	Yan, Chunling Shi, Yongtao Tang, Yiqun
Copyright Year	2017
Abstract	Cyclic triaxial test by means of the geotechnical digital system is conducted for the soil near the Guoquan Road Station of Metro Line 10 in Shanghai to analyze the strain characteristics and the variation law of saturated silty soil under subway loading. Orthogonal design method is used to arrange the experiment, considering the following factors: frequency ratio f $_{R}$, cyclic stress ratio σ $_{R}$, vibration time ratio N $_{R}$, and the interaction function among them. Results show that the cyclic stress ratio σ $_{R}$, the frequency ratio f $_{R}$, the vibration time ratio N $_{R}$, and the interaction between the cyclic stress ratio σ $_{R}$ and the vibration time ratio N $_{R}$ have a significant effect on the axial strain of the subway tunnel. The effect of the interaction between the cyclic stress ratio σ $_{R}$ and the vibration time ratio N $_{R}$ is also significant. From the analysis of variance and regression theory, the nonlinear regression equation of the cumulative plastic strain of silty soil under subway loading is established. Residual analysis proves that the equation is ideal and credible. The results have important value for the design of subway tunnels.
Starting Page	1
Ending Page	11
Page Count	11
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	76
Issue Number	14
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-07-25
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Subway loading Strain characteristics Orthogonal design Cyclic triaxial test Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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