Excavation of a Layered Rock Mass with the Use of Transverse Cutting Heads of a Roadheader in the Light of Computer Studies

Rock excavation is a basic technological operation during tunnelling and drilling roadways in underground mines. Tunnels mines are driven into rock mass, which the particular case of sedimentary rocks, often have layered structure complicated tectonics. For this reason, strata highly differentiated mechanical properties, diverse deposition patterns varied thicknesses cross sections such headings. In field roadheader technology applied to headings, mass relevant when selecting appropriate cutting method for heading face. Decidedly values parameters describe properties layer deposited section drilled tunnel will influence value character load on system, generated by process, power demand, efficiency energy consumption process. The article presents mathematical modelling process with transverse head boom-type roadheader. assumption was made that being cut consists certain number layers predefined specific thickness pattern. model created executed through computer programme. It used analysing impact amount consumed placed system. an example results attained from simulations. They indicate variations – as heads moving along surface face may have, apart multiple other factors, significant