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engineering, geological (22) 22
bolts (16) 16
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International Journal for Numerical and Analytical Methods in Geomechanics, ISSN 0363-9061, 09/2016, Volume 40, Issue 13, pp. 1844 - 1862
Journal Article
Journal Article
Construction and Building Materials, ISSN 0950-0618, 2011, Volume 25, Issue 2, pp. 749 - 755
A new analytical approach able to predict the mechanical behaviour of fully grouted rockbolts subjected to pull-out tests is proposed in this paper. Input... 
Bond-slip model | Pull-out test | Analytical solution | Joint interface | Fully grouted rockbolts | ENGINEERING, CIVIL | CONSTRUCTION & BUILDING TECHNOLOGY | MATERIALS SCIENCE, MULTIDISCIPLINARY | Mechanical properties | Nuts and bolts | Design and construction | Mechanics | Mechanics of the solides | Engineering Sciences | Physics
Journal Article
International Journal of Rock Mechanics and Mining Sciences, ISSN 1365-1609, 10/2013, Volume 63, pp. 50 - 61
The bolt-grout interface of fully grouted rockbolts has been studied with the aim of determining its constitutive law. For this purpose, axial loadings acting... 
Semi-empirical formulation | Analytical approach | Pull-out test | Bolt-grout interface | Fully grouted rockbolts | CABLE BOLTS | MINING & MINERAL PROCESSING | ENGINEERING, GEOLOGICAL | BOND STRENGTH | Bolting | Friction | Accessibility | Shear stress | Bolts | Grounds | Assessments | Grout
Journal Article
by Nie, W and Zhao, Z.Y and Ma, S.Q and Guo, W
Tunnelling and Underground Space Technology incorporating Trenchless Technology Research, ISSN 0886-7798, 01/2018, Volume 71, pp. 15 - 26
•A verified fully grouted rockbolt model in DDA is proposed to analyze the reinforcement effect of rockbolts.•The RRU induced by single rockbolt is normally in... 
DDA-2D | Rockbolt spacing | Fully grouted rockbolt | Joint dip angle | PULL-OUT | ENGINEERING, CIVIL | CONSTRUCTION & BUILDING TECHNOLOGY | CABLE BOLTS | SLIP | MASS | MODEL | BOND STRENGTH
Journal Article
International Journal of Rock Mechanics and Mining Sciences, ISSN 1365-1609, 07/2019, Volume 119, pp. 168 - 179
Journal Article
Tunnelling and Underground Space Technology incorporating Trenchless Technology Research, ISSN 0886-7798, 03/2019, Volume 85, pp. 56 - 66
As a simple supporting structure, rockbolts are responsible for maintaining the integrity and stability as well as controlling the deformation, displacement,... 
Fully-grouted long rockbolt | Pullout test | Load transfer | Failure modes | BOND BEHAVIOR | PERFORMANCE | ANALYTICAL-MODEL | BOLT | STRENGTH | CONCRETE | ENGINEERING, CIVIL | CONSTRUCTION & BUILDING TECHNOLOGY | COMPOSITE BEAM | REINFORCEMENT | STRESS | BARS
Journal Article
Soil Dynamics and Earthquake Engineering, ISSN 0267-7261, 11/2013, Volume 54, pp. 66 - 72
The widespread preference for rockbolts in providing adequate rock stability in underground mines and man-made cavities make it necessary to obtain a better... 
Numerical modeling | Axial stress distribution | Fully grouted rockbolt | Dynamic loading | GEOSCIENCES, MULTIDISCIPLINARY | ENGINEERING, GEOLOGICAL | ABSORBING ROCK BOLT
Journal Article
Tunnelling and Underground Space Technology incorporating Trenchless Technology Research, ISSN 0886-7798, 11/2019, Volume 93, p. 103088
Journal Article
International Journal of Rock Mechanics and Mining Sciences, ISSN 1365-1609, 2013, Volume 63, Issue October 2013, pp. 50 - 61
The bolt-grout interface of fully grouted rockbolts has been studied with the aim of determining its constitutive law. For this purpose, axial loadings acting... 
Engineering Sciences | Materials
Journal Article
by Nie, W and Zhao, Z.Y and Ning, Y.J and Guo, W
Tunnelling and Underground Space Technology incorporating Trenchless Technology Research, ISSN 0886-7798, 03/2014, Volume 41, Issue 1, pp. 223 - 233
•A rockbolt model is developed within the frame work of the two-dimensional discontinuous deformation analysis (DDA).•The mechanism of a rockbolt relies on the... 
DDA | Pull-out test | Drop test | Energy dissipation | Rockbolt | TUNNEL | LOAD | BEHAVIOR | FULLY GROUTED BOLTS | ROCK MASSES | ENGINEERING, CIVIL | CONSTRUCTION & BUILDING TECHNOLOGY | STABILITY ANALYSIS | CABLE BOLTS | REINFORCEMENT | BOND STRENGTH | Bolting | Rebar | Rock | Deformation | Computer simulation | Reinforcing steels | Bolts | Strain hardening
Journal Article
Archives of Mining Sciences, ISSN 0860-7001, 12/2016, Volume 61, Issue 4, pp. 823 - 852
Journal Article
International Journal of Rock Mechanics and Mining Sciences, ISSN 1365-1609, 2014, Volume 71, pp. 293 - 300
Numerical modelling of fully grouted rock bolts loaded in tension is presented by implementing a non-linear bond-slip relationship of bolt-grout interface into... 
Non-linear bond-slip relationship | FLAC model | Rockbolt elements | Debonding failure process | Fully grouted rock bolts | CAPACITY | ROCKBOLTS | BEHAVIOR | MINING & MINERAL PROCESSING | ENGINEERING, GEOLOGICAL | STRESS | Models | Rock mechanics | Analysis | Green technology | Bonds | Bolting | Mathematical analysis | Rock bolts | Bolts | Mathematical models | Modelling | Failure
Journal Article
Geotechnical Testing Journal, ISSN 0149-6115, 09/2017, Volume 40, Issue 5, pp. 846 - 857
The bond characteristics of fully grouted rockbolts installed in steel tubes were investigated by bolt push tests. Steel tubes were inserted in a mine roadway... 
Spin and Hold | Bond strength | Spin to Stall | Push tests | Fully grouted rockbolts | CAPACITY | PERFORMANCE | BEHAVIOR | SLIP | ANALYTICAL-MODEL | DISCONTINUOUS DEFORMATION ANALYSIS | bond strength | TENSILE LOAD | fully grouted rockbolts | GEOSCIENCES, MULTIDISCIPLINARY | ROCKBOLTS | ENGINEERING, GEOLOGICAL | push tests
Journal Article
Tunnelling and Underground Space Technology incorporating Trenchless Technology Research, ISSN 0886-7798, 04/2016, Volume 54, pp. 73 - 80
•A numerical model is proposed for fully grouted bolts.•The model considers the tri-linear bond–slip relationship of a bolt system.•The proposed model agrees... 
Fully grouted bolts | Decoupling mechanism | Pullout tests | Tri-linear bond slip model | Numerical model | ENGINEERING, CIVIL | CONSTRUCTION & BUILDING TECHNOLOGY | ROCKBOLTS | Stress concentration | Tunnelling | Shear | Decoupling | Shear stress | Bolts | Mathematical models | Bonding
Journal Article
Construction and Building Materials, ISSN 0950-0618, 04/2019, Volume 204, pp. 849 - 863
•New numerical procedures for bolt-rock interaction are proposed.•The calculation process is greatly simplified in the procedure with the slip case.•Two... 
Rock | Numerical procedure | Fully-grouted bolt | Interaction | Slip | DESIGN | MATERIALS SCIENCE, MULTIDISCIPLINARY | SUPPORT | MECHANICS | ENGINEERING, CIVIL | CONSTRUCTION & BUILDING TECHNOLOGY | ROCKBOLTS | REINFORCEMENT | PASSIVE BOLTS | Materials science | Models | Research | Properties | Rock bolts
Journal Article
Tunnelling and Underground Space Technology incorporating Trenchless Technology Research, ISSN 0886-7798, 03/2018, Volume 73, pp. 82 - 91
•A new stress model for GFRP bolts under the action of static and dynamic loads.•Kelvin’s solution used to model worst case scenarios of the blasting... 
Fully grouted GFRP rock bolts | Blast load | Underground mining | Ground support | Rock bolts | TESTS | SLIP | PERFORMANCE | ANALYTICAL-MODEL | STRESS-DISTRIBUTION | ENGINEERING, CIVIL | CONSTRUCTION & BUILDING TECHNOLOGY | ROCKBOLTS | REINFORCEMENT | FRP-CONCRETE INTERFACES | TUNNELING DESIGN
Journal Article