Details
| Original language | English |
|---|---|
| Pages (from-to) | 1826-1834 |
| Number of pages | 9 |
| Journal | Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering |
| Volume | 37 |
| Issue number | 10 |
| Publication status | Published - 1 Oct 2015 |
| Externally published | Yes |
Abstract
Using the elastoplastic and damage constitutive methods for concrete respectively, a 3-D FEM model for segment joints of shield tunnel is established to simulate the process of bending failure under positive and negative loads. By comparing the simulated results with the experimental data, at the initial stage, the deformation curve is almost coincident with the FEM using the elastoplastic and damage constitutive methods, and both of them show a good agreement with the test results. With the increasing load, the results using the damage constitutive method are closer to the experimental values, and it can simulate the dropping process of structural bearing capacity better. Through the convergence analysis of FEM, the rationality of mesh generation is proved, and the grid sizes of similar element models are suggested. Finally, based on the simulated results, some evaluation indices for health assessment of segment joints are proposed.
Keywords
- 3-D FEM, Convergence analysis, Damage constitute, Health assessment, Shield tunnel, Structural bearing capacity
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
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In: Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering, Vol. 37, No. 10, 01.10.2015, p. 1826-1834.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - 3-D finite element model for destruction process of segment joints of shield tunnel using elastoplastic and damage constitutive methods
AU - Zhuang, Xiaoying
AU - Zhang, Xue Jian
AU - Zhu, He Hua
PY - 2015/10/1
Y1 - 2015/10/1
N2 - Using the elastoplastic and damage constitutive methods for concrete respectively, a 3-D FEM model for segment joints of shield tunnel is established to simulate the process of bending failure under positive and negative loads. By comparing the simulated results with the experimental data, at the initial stage, the deformation curve is almost coincident with the FEM using the elastoplastic and damage constitutive methods, and both of them show a good agreement with the test results. With the increasing load, the results using the damage constitutive method are closer to the experimental values, and it can simulate the dropping process of structural bearing capacity better. Through the convergence analysis of FEM, the rationality of mesh generation is proved, and the grid sizes of similar element models are suggested. Finally, based on the simulated results, some evaluation indices for health assessment of segment joints are proposed.
AB - Using the elastoplastic and damage constitutive methods for concrete respectively, a 3-D FEM model for segment joints of shield tunnel is established to simulate the process of bending failure under positive and negative loads. By comparing the simulated results with the experimental data, at the initial stage, the deformation curve is almost coincident with the FEM using the elastoplastic and damage constitutive methods, and both of them show a good agreement with the test results. With the increasing load, the results using the damage constitutive method are closer to the experimental values, and it can simulate the dropping process of structural bearing capacity better. Through the convergence analysis of FEM, the rationality of mesh generation is proved, and the grid sizes of similar element models are suggested. Finally, based on the simulated results, some evaluation indices for health assessment of segment joints are proposed.
KW - 3-D FEM
KW - Convergence analysis
KW - Damage constitute
KW - Health assessment
KW - Shield tunnel
KW - Structural bearing capacity
UR - http://www.scopus.com/inward/record.url?scp=84948750484&partnerID=8YFLogxK
U2 - 10.11779/CJGE201510011
DO - 10.11779/CJGE201510011
M3 - Article
AN - SCOPUS:84948750484
VL - 37
SP - 1826
EP - 1834
JO - Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering
JF - Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering
SN - 1000-4548
IS - 10
ER -