Deformation and Failure Analysis of Rock Mass Around Tunnel by Coupling Finite Difference Method and Discrete Element Method (Record no. 10478)

MARC details
000 -LEADER
fixed length control field a
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250408122947.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 191209b xxu||||| |||| 00| 0 eng d
040 ## - CATALOGING SOURCE
Original cataloging agency AIKTC-KRRC
Transcribing agency AIKTC-KRRC
100 ## - MAIN ENTRY--PERSONAL NAME
9 (RLIN) 11075
Author Huang, Feng
245 ## - TITLE STATEMENT
Title Deformation and Failure Analysis of Rock Mass Around Tunnel by Coupling Finite Difference Method and Discrete Element Method
250 ## - EDITION STATEMENT
Volume, Issue number Vol.49(4), Aug
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc. New York
Name of publisher, distributor, etc. Springer
Year 2019
300 ## - PHYSICAL DESCRIPTION
Pagination 421-436p.
520 ## - SUMMARY, ETC.
Summary, etc. The deformation and failure mechanics of the rock mass around tunnel after excavation are very important for design and construction. Simulation is always difficult when using either the finite difference method (FDM) or discrete element method (DEM). Consequently, a two-dimensional (2D) coupling analysis method was introduced by employing the commercial codes FLAC for FDM and PFC for DEM simultaneously. The developed 2D coupled method was applied to analyze the mechanical response of Tongluoshan tunnel which is the longest interval railway tunnel in China. By comparison with theoretical method, the displacement by numerical simulation shows good agreements with analytical equation for cases with different ground stress ratios. The reasonable dimension for DEM model should be 4 times of tunnel radius to assure reliable results in terms of efficiency and accuracy of calculation. Generally, the maximum of vertical displacement will increase according to the increase in stress ratio. Fracture of rock mass initiates and visible collapse of tunnel happens when ground stress is over 4 MPa (54% of uniaxial compressive strength) and 6 MPa (81% of uniaxial compressive strength), respectively. Both fracture and collapse predominantly concentrate above tunnel crown.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 4690
Topical term or geographic name entry element Construction Engineering and Management (ME-CE)
700 ## - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 11076
Co-Author Wang, Yi
773 0# - HOST ITEM ENTRY
International Standard Serial Number 0971-9555
Title Indian geotechnical journal
Place, publisher, and date of publication Switzerland Springer
856 ## - ELECTRONIC LOCATION AND ACCESS
URL https://link.springer.com/article/10.1007/s40098-018-0348-9
Link text Click here
942 ## - ADDED ENTRY ELEMENTS (KOHA)
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    Dewey Decimal Classification     School of Engineering & Technology (PG) School of Engineering & Technology (PG) Archieval Section 09/12/2019   2020408 09/12/2019 09/12/2019 Articles Abstract Database
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