Next Article in Journal
Transport Pathways and Potential Source Region Contributions of PM2.5 in Weifang: Seasonal Variations
Next Article in Special Issue
Effect of Rock Abrasiveness on Wear of Shield Tunnelling in Bukit Timah Granite
Previous Article in Journal
Characteristics of Battery SOC According to Drive Output and Battery Capacity of Parallel Hybrid Electric Vehicle
Previous Article in Special Issue
Method to Control the Deformation of Anti-Slide Piles in Zhenzilin Landslide
Open AccessArticle

Analysis of Undrained Seismic Behavior of Shallow Tunnels in Soft Clay Using Nonlinear Kinematic Hardening Model

Department of Civil Engineering, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(8), 2834; https://doi.org/10.3390/app10082834
Received: 5 March 2020 / Revised: 3 April 2020 / Accepted: 7 April 2020 / Published: 19 April 2020
(This article belongs to the Special Issue Advances in Geotechnical Engineering)
In this study, a soil–tunnel model for clay under earthquake loading is analyzed, using finite element methods and a kinematic hardening model with the Von Mises failure criterion. The results are compared with those from the linear elastic–perfectly plastic Mohr–Coulomb model. The latter model does not consider the stiffness degradation caused by imposing cyclic loading and unloading to the soil, whereas the kinematic hardening model can simulate this stiffness degradation. The parameters of the kinematic hardening model are calibrated based on the results of experimental cyclic tests and finite element simulation. Here, two methods—one using data from cyclic shear tests, and the other a new method using undrained cyclic triaxial tests—are used to calibrate the parameters. The parameters investigated are the peak ground acceleration (PGA), tunnel lining thickness, tunnel shape, and tunnel embedment depth, all of which have an effect on the resistance of the shallow tunnel to the stresses and deformations caused by the surrounding clay soils. The results show that unlike traditional models, the nonlinear kinematic hardening model can predict the response reasonably well, and it is able to create the hysteresis loops and consider the soil stiffness degradation under the seismic loads. View Full-Text
Keywords: seismic response; kinematic hardening; clay; parameters calibration seismic response; kinematic hardening; clay; parameters calibration
Show Figures

Figure 1

MDPI and ACS Style

Saleh Asheghabadi, M.; Cheng, X. Analysis of Undrained Seismic Behavior of Shallow Tunnels in Soft Clay Using Nonlinear Kinematic Hardening Model. Appl. Sci. 2020, 10, 2834. https://doi.org/10.3390/app10082834

AMA Style

Saleh Asheghabadi M, Cheng X. Analysis of Undrained Seismic Behavior of Shallow Tunnels in Soft Clay Using Nonlinear Kinematic Hardening Model. Applied Sciences. 2020; 10(8):2834. https://doi.org/10.3390/app10082834

Chicago/Turabian Style

Saleh Asheghabadi, Mohsen; Cheng, Xiaohui. 2020. "Analysis of Undrained Seismic Behavior of Shallow Tunnels in Soft Clay Using Nonlinear Kinematic Hardening Model" Appl. Sci. 10, no. 8: 2834. https://doi.org/10.3390/app10082834

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop