Study on Mechanical Characteristics of Fully Grouted Rock Bolts for Underground Caverns under Seismic Loads
Joint Authors
Chen, Juntao
Liu, Guoqing
Xiao, Ming
Zhou, Hao
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-16
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
This study establishes an analytical model for the interaction between the bolt and surrounding rock based on the bearing mechanism of fully grouted rock bolts.
The corresponding controlled differential equation for load transfer is deduced.
The stress distributions of the anchorage body are obtained by solving the equations.
A dynamic algorithm for the bolt considering shear damage on the anchoring interface is proposed based on the dynamic finite element method.
The rationality of the algorithm is verified by a pull-out test and excavation simulation of a rounded tunnel.
Then, a case study on the mechanical characteristics of the bolts in underground caverns under seismic loads is conducted.
The results indicate that the seismic load may lead to stress originating from the bolts and damage on the anchoring interface.
The key positions of the antiseismic support can be determined using the numerical simulation.
The calculated results can serve as a reference for the antiseismic optimal design of bolts in underground caverns.
American Psychological Association (APA)
Liu, Guoqing& Xiao, Ming& Chen, Juntao& Zhou, Hao. 2017. Study on Mechanical Characteristics of Fully Grouted Rock Bolts for Underground Caverns under Seismic Loads. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1189616
Modern Language Association (MLA)
Liu, Guoqing…[et al.]. Study on Mechanical Characteristics of Fully Grouted Rock Bolts for Underground Caverns under Seismic Loads. Mathematical Problems in Engineering No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1189616
American Medical Association (AMA)
Liu, Guoqing& Xiao, Ming& Chen, Juntao& Zhou, Hao. Study on Mechanical Characteristics of Fully Grouted Rock Bolts for Underground Caverns under Seismic Loads. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1189616
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1189616