Functional Catastrophe Analysis of Collapse Mechanism for Shallow Tunnels with Considering Settlement
Joint Authors
Zhang, Rui
Xiao, Hai-Bo
Li, Wen-Tao
Source
Mathematical Problems in Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-03
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Limit analysis is a practical and meaningful method to predict the stability of geomechanical properties.
This work investigates the pore water effect on new collapse mechanisms and possible collapsing block shapes of shallow tunnels with considering the effects of surface settlement.
The analysis is performed within the framework of upper bound theorem.
Furthermore, the NL nonlinear failure criterion is used to examine the influence of different factors on the collapsing shape and the minimum supporting pressure in shallow tunnels.
Analytical solutions derived by functional catastrophe theory for the two different shape curves which describe the distinct characteristics of falling blocks up and down the water level are obtained by virtual work equations under the variational principle.
By considering that the mechanical properties of soil are not affected by the presence of underground water, the strength parameters in NL failure criterion can be taken to be the same under and above the water table.
According to the numerical results in this work, the influences on the size of collapsing block different parameters have are presented in the tables and the upper bounds on the loads required to resist collapse are derived and illustrated in the form of supporting forces graphs that account for the variation of the embedded depth and other factors.
American Psychological Association (APA)
Zhang, Rui& Xiao, Hai-Bo& Li, Wen-Tao. 2016. Functional Catastrophe Analysis of Collapse Mechanism for Shallow Tunnels with Considering Settlement. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1112226
Modern Language Association (MLA)
Zhang, Rui…[et al.]. Functional Catastrophe Analysis of Collapse Mechanism for Shallow Tunnels with Considering Settlement. Mathematical Problems in Engineering No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1112226
American Medical Association (AMA)
Zhang, Rui& Xiao, Hai-Bo& Li, Wen-Tao. Functional Catastrophe Analysis of Collapse Mechanism for Shallow Tunnels with Considering Settlement. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1112226
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1112226