Yun Lei1,2,*
FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.12, pp. 3021-3032, 2023, DOI:10.32604/fdmp.2023.029570
Abstract The highly inefficient simultaneous extraction of coal and gas from low-permeability and high-gas coal seams in
deep mines is a major problem often restricting the sustainable development of coal industry. A possible way to
solve this problem under deep and complex geological conditions is represented by the technology based on the
phase-change induced explosion of liquid carbon dioxide. In this work, the mechanism of formation of the coal
mass fracture circle resulting from the gas cracking process is theoretically analyzed. Numerical simulations show
that a blasting crushing zone with a radius of 1.0 m is More >
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