Details
| Original language | English |
|---|---|
| Pages (from-to) | 18-28 |
| Number of pages | 11 |
| Journal | Geotechnical Engineering |
| Volume | 43 |
| Issue number | 2 |
| Publication status | Published - 1 Jun 2012 |
| Externally published | Yes |
Abstract
Most slope stability analysis approaches regard the failure mechanism of seismic slope as single shear failure while ignoring the influence of tension failure. However, many model testes and a large number of post-earthquake investigations provided supporting evidence of the significant influence of tension failure in seismic slope instability. To estimate the effects of tension failure on seismic slope stability, a numerical modeling considering both shear and tension failure is performed using FLAC3D. After discussions of failure mechanism, strength reduction techniques and the definition of slope failure, a homogeneity slope under a modified transverse earthquake load is analyzed. The results obtained from the simulation are presented in terms of permanent displacement, factor of safety and failure surface. Finally, the outcomes compared with those from various existing methods. The results show that the influence of tension failure is significant and consideration of it is necessary.
Keywords
- Factor of safety, Failure mechanism, Numerical simulation, Seismic slope stability analysis, Tension failure
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
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In: Geotechnical Engineering, Vol. 43, No. 2, 01.06.2012, p. 18-28.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Numerical simulation of seismic slope stability analysis based on tension-shear failure mechanism
AU - Zhang, Ying Bin
AU - Chen, Guangqi
AU - Wu, Jian
AU - Zheng, Lu
AU - Zhuang, Xiaoying
PY - 2012/6/1
Y1 - 2012/6/1
N2 - Most slope stability analysis approaches regard the failure mechanism of seismic slope as single shear failure while ignoring the influence of tension failure. However, many model testes and a large number of post-earthquake investigations provided supporting evidence of the significant influence of tension failure in seismic slope instability. To estimate the effects of tension failure on seismic slope stability, a numerical modeling considering both shear and tension failure is performed using FLAC3D. After discussions of failure mechanism, strength reduction techniques and the definition of slope failure, a homogeneity slope under a modified transverse earthquake load is analyzed. The results obtained from the simulation are presented in terms of permanent displacement, factor of safety and failure surface. Finally, the outcomes compared with those from various existing methods. The results show that the influence of tension failure is significant and consideration of it is necessary.
AB - Most slope stability analysis approaches regard the failure mechanism of seismic slope as single shear failure while ignoring the influence of tension failure. However, many model testes and a large number of post-earthquake investigations provided supporting evidence of the significant influence of tension failure in seismic slope instability. To estimate the effects of tension failure on seismic slope stability, a numerical modeling considering both shear and tension failure is performed using FLAC3D. After discussions of failure mechanism, strength reduction techniques and the definition of slope failure, a homogeneity slope under a modified transverse earthquake load is analyzed. The results obtained from the simulation are presented in terms of permanent displacement, factor of safety and failure surface. Finally, the outcomes compared with those from various existing methods. The results show that the influence of tension failure is significant and consideration of it is necessary.
KW - Factor of safety
KW - Failure mechanism
KW - Numerical simulation
KW - Seismic slope stability analysis
KW - Tension failure
UR - http://www.scopus.com/inward/record.url?scp=84881047397&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84881047397
VL - 43
SP - 18
EP - 28
JO - Geotechnical Engineering
JF - Geotechnical Engineering
SN - 0046-5828
IS - 2
ER -