Numerical modelling of failure propagation in fully grouted rock bolts subjected to tensile load

被引：92
|
作者：
Nemcik, Jan [1 ]
Ma, Shuqi [1 ]
Aziz, Naj [1 ]
Ren, Ting [1 ]
Geng, Xueyu [2 ]
机构：
[1] Univ Wollongong, Sch Civil Min & Environm Engn, Wollongong, NSW 2522, Australia
[2] Univ Abertay Dundee, Environm Engn Urban Water Technol Ctr UWTC, Dundee, Scotland
来源：
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES | 2014年 / 71卷
关键词：
FLAC model; Rockbolt elements; Fully grouted rock bolts; Non-linear bond-slip relationship; Debonding failure process; STRESS; ROCKBOLTS; CAPACITY; BEHAVIOR;
D O I：
10.1016/j.ijrmms.2014.07.007
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Numerical modelling of fully grouted rock bolts loaded in tension is presented by implementing a nonlinear bond-slip relationship of bolt-grout interface into a commercial finite difference rock mechanics code. The proposed model shows a close match with the experimental results and analytical predictions in terms of load-displacement relationship, rock bolt axial force distribution and interfacial shear stress distribution. A detailed debonding failure process is also presented, which includes five successive states: elastic state, elastic-softening state, elastic-softening-debonding state, softening-debonding state and debonding state. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：293 / 300
页数：8
相关论文
共 50 条
  • [1] An analytical model of fully grouted rock bolts subjected to tensile load
    Ma, Shuqi
    Nemcik, Jan
    Aziz, Naj
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2013, 49 : 519 - 526
  • [2] A study of the load transfer behavior of fully grouted rock bolts with analytical modelling
    Jianhang Chen
    Fulian He
    Shoubao Zhang
    [J]. International Journal of Mining Science and Technology, 2020, 30 (01) : 105 - 109
  • [3] Numerical Modelling of Fully Grouted Rockbolts Subjected to Shear Load
    Nie, Wen
    Guo, Wei
    Ma, Shuqi
    Zhao, Zhiye
    [J]. ROCK MECHANICS AND ROCK ENGINEERING, 2020, 53 (05) : 2493 - 2503
  • [4] Numerical Modelling of Fully Grouted Rockbolts Subjected to Shear Load
    Wen Nie
    Wei Guo
    Shuqi Ma
    Zhiye Zhao
    [J]. Rock Mechanics and Rock Engineering, 2020, 53 : 2493 - 2503
  • [5] A study of the load transfer behavior of fully grouted rock bolts with analytical modelling
    Chen, Jianhang
    He, Fulian
    Zhang, Shoubao
    [J]. INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY, 2020, 30 (01) : 105 - 109
  • [6] Load capacity of fully grouted rock bolts in shale
    Alber, M.
    Ruehl, S.
    [J]. EUROCK 2005: IMPACT OF HUMAN ACTIVITY ON THE GEOLOGICAL ENVIRONMENT, 2005, : 1 - 6
  • [7] An enhanced numerical procedure for modelling fully grouted bolts intersected by rock joint
    Das, Kamal C.
    Deb, Debasis
    Jha, A. K.
    [J]. GEOSYSTEM ENGINEERING, 2013, 16 (01) : 37 - 46
  • [8] An Improved Numerical Simulation Approach for the Failure of Rock Bolts Subjected to Tensile Load in Deep Roadway
    Wang, Rui
    Bai, Jian-biao
    Yan, Shuai
    Song, Yuan-ba
    Wang, Guang-dong
    [J]. GEOFLUIDS, 2020, 2020
  • [9] Optimization of the fully grouted rock bolts for load transfer enhancement
    Ghadimi Mostafa
    Shahriar Korosh
    Jalalifar Hossein
    [J]. International Journal of Mining Science and Technology, 2015, 25 (05) : 707 - 712
  • [10] Optimization of the fully grouted rock bolts for load transfer enhancement
    Mostafa, Ghadimi
    Korosh, Shahriar
    Hossein, Jalalifar
    [J]. INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY, 2015, 25 (05) : 707 - 712
12345