• Abhishek Kumar Tripathi
• Shubham Kumar
• Md Efraj Ansari
• Aman Kumar
• Rahul Agarwal

To improve the safety in underground coal mines working the insertion of roof bolting on the rock layering is a vary popular method of roof supporting system. The estimation of rock load from the strata and its distribution over the underground mine workings is of prime importance, as it will justify the types of roof bolts used under different strata conditions. In this paper, an attempt has been made to design the roof bolting system based on numerical simulation approach. The parameters which taken into consideration were Bolt length, grout condition, presence of geological (such as dykes, sills, etc.) and geotechnical parameters (such as folds, faults, joints, uncertainties in rock, etc.). The numerical design is done to analyze the maximum load bearing capacity, stiffness of support and residual strength and Axial load on the immediate roof. Design parameters used in this paper is truly based on the assumption of the simulated underground coal mines condition.

Underground coal mines, Geotechnical parameters, Stiffness of support, Grout condition, Axial load.

"Design of Roof Bolting System in An Underground Coal Mines- A Numerical Modelling Approach", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.76-80, April-2019, Available :http://www.jetir.org/papers/JETIR1904N14.pdf

"Design of Roof Bolting System in An Underground Coal Mines- A Numerical Modelling Approach", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp76-80, April-2019, Available at : http://www.jetir.org/papers/JETIR1904N14.pdf