## 3 Parametric Study of Cable Bolts  
Many studies have been conducted on the double shear test using both experimental and numerical analysis, however, there still exists a lack of knowledge of the shear perfor \begin{table}
\begin{tabular}{l l l l} \hline \hline
**Numerical Approach** & **Subtype** & **Commercial/Academic Code** & **Institution/Author (Year)** \\ \hline \multirow{2}{*}{Continuum method} & \multirow{2}{*}{Finite element method (FEM)} & ABAQUS & \multirow{2}{*}{Dassault Systemes} \\  & & ADINA & ADINA R\&D, Inc. \\  & & ANSYS & ANSYS, Inc \\  & & GEO5 & Fine Software \\  & & LS-DYNA & LSTC \\  & & Midas GTS NX & MIDAS IT \\  & & PLAXIS2D, PLAXIS3D & \multirow{2}{*}{Plaxis} \\  & & RFPA2D, RFPA3D & \multirow{2}{*}{Mechsoft} \\  & & RS2 (Phase 2), RS3 & \multirow{2}{*}{Rosecience} \\  & \multirow{2}{*}{Finite difference method (FDM)} & FLAC, FLAC3D & \multirow{2}{*}{Iacas Consulting Group, Inc.} \\  & & Boundary element method (BEM) & \multirow{2}{*}{Examine} \\  & & Map3D Non-Linear & \multirow{2}{*}{Map3D} \\ \multirow{2}{*}{Discontinuum method} & Discrete element method (DEM) & PFC2D, PFC3D & \multirow{2}{*}{Iacas Consulting Group, Inc.} \\  & & UDEC, 3 DEC & \multirow{2}{*}{Iacas Consulting Group, Inc.} \\  & & Discontinuous deformation & \\  & analysis (DDA) & & \\  & Discrete fracture network (DFN) & FracMan & Golder \\  & & NAPSAC & AEA Technology \\  & & DEM\_SRS + BEDA + FNET & [PERSON] (1992), [PERSON] and \\ Hybrid method & BEM/DEM & + BEFA & [PERSON] (1998) \\  & & BEM/FEM codes & [PERSON] et al. (1977) \\  & DEM/FEM & CA3 & [PERSON] (2009) \\  & & ELFEN & Rockfield \\  & & IRAZU & Geomechanica \\  & & NMM & Sih (1991) \\  & & Y2D & [PERSON] et al. (2004) \\  & & [PERSON] & [PERSON] et al. (2012) \\  & & PFC2D/FLAC, \\  & & PFC3D/FLAC3D & \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Summary of numerical analysis classifications. mance of yielding bolts in dynamic loading conditions. To conduct a parametric study on the failure mechanisms of cable bolts under dynamic shear loading conditions, a numerical model of a double shear test will be developed using finite element analysis (FEA) in ABAQUS/Explicit. The utilisation of FEA to model a double shear test under dynamic loading conditions is advantageous as it allows multiple non-destructive cheap tests to be run simultaneously. Additionally, as tests are defined by user inputs, it compliments parametric studies and encourages the investigation of multiple parameters. [PERSON] et al. (2018) [28] created a double shear test using finite element modelling and expressed the value of ABAQUS' ability to model many complex interactions and boundary conditions. [PERSON] et al. (2017) [29] also recognised the advantages of using FEM and conducted a similar double shear test. This study will further the model by investigating the impacts of select parameters on dynamically loaded bolts, with a focus on maximum displacement, shear force and energy absorption. The analysis will examine the bolt diameter, the steel strength, the velocity of the dynamic load cell, and the mass of the dynamic load cell. To create a model that investigates current cable bolts in the mining industry, all bolts will be modelled to replicate Jennmar's bolt properties as they are currently the industry standard in Australia. Jennmar have published the technical data for all their bolts. Table 3. displays the bolt types, diameters and steel properties that were extracted from Jennmar Technical Brochure that will be used in the analysis. Furthermore, to create a valid parametric study, the numerical model must be calibrated using reliable experimental data. As no experimental data could be obtained from dynamical tests, a static test was first modelled which was then calibrated, followed by the development of the dynamic test. Experimental data for statically tested cable bolts was extracted from the Australian Coal Industry Research Program's (ACARP) Project C27040 and used to calibrate the model.