A numerical simulation method for exploring efficient rock breaking by combination of microwave and roller cutter

Abstract

The present application relates to the technical field of rock breaking, and particularly relates to a numerical simulation method for exploring efficient rock breaking by combining microwaves and disc cutters; rock samples are collected, the mineral composition of the rock samples is determined, a rock sample model is established and the power density of microwaves is selected, and then orthogonal design tests are carried out according to the irradiation area, irradiation time and the ratio of the irradiation area to the rock mass area between adjacent disc cutters; there are n tests; the rock sample model is subjected to microwave irradiation treatment according to the power density; the rock sample model after microwave irradiation treatment is obtained; the placement position of the disc cutter model in the rock sample model after microwave irradiation treatment is determined; the disc cutter model is given a penetration speed, the rock sample model after microwave irradiation treatment is subjected to disc cutter penetration simulation based on the placement position, and the penetration degree and average normal force are recorded; the penetration degree and average normal force of the n tests are analyzed, and the data combination with the highest rock breaking efficiency is determined. The present application can obtain efficient rock breaking data combinations and improve the rock breaking efficiency.

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