Chapter 1 Introduction
1.1 Background
1.2 Research objectives
1.3 Outline of this book
Chapter 2 Analytical Modelling Rock Bolts with an Elastic-softening Model
2.1 Introduction
2.2 Load transfer mechanics
2.3 Bond-slip model
2.4 Analytic modelling
2.5 Calibration of input parameters
2.6 Validation of the analytical solution
2.7 Parameter analysis
2.8 Recommendation for further work
2.9 Conclusions
Chapter 3 Analytical Modelling Rock Bolts with an Elastic-debonding Model
3.1 Introduction
3.2 Bond-slip equation
3.3 Rock bolt loading performance
3.4 Input parameters
3.5 Experimental test validation
3.6 Parameter analysis
3.7 Conclusions
Chapter 4 Numerical Investigation of the Tensile Performance and Failure Process of a Modified Portland Cement
4.1 Introduction
4.2 Experimental program
4.3 Experimental results
4.4 Numerical simulation scheme
4.5 Numerical simulation results and analysis
4.6 Discussion
4.7 Recommendations for further work
4.8 Conclusions
Chapter 5 Numerical Modelling Rock Bolts with the Modified Cable Elements
5.1 Introduction
5.2 The bond-slip model for the interface
5.3 Incorporating the bond-slip model into FLAC3D
5.4 Validation of this numerical model
5.5 A study with the modified cableSELs
5.6 Recommendation for further work
5.7 Conclusions
Chapter 6 Numerical Simulation of Fully Encapsulated Rock Bolts with a Tri-linear Constitutive Model
6.1 Introduction
6.2 Shear behaviour of the bolt/grout interface
6.3 Merging the constitutive model into pile elements
6.4 Validation with experimental tests
6.5 Numerical simulation under the in-situ case
6.6 Conclusions
Chapter 7 Investigating the Load Transfer Performance of Fully Grouted Rock Bolts with a Modified Numerical Simulation Method
7.1 Introduction
7.2 Description of the revised simulation approach
7.3 Numerical simulation scheme
7.4 Recommendation for further work
7.5 Conclusions
Chapter 8 Conclusions and Limitations
References