高压空气爆破致裂煤体数值模拟
Numerical Simulation of Coal Fracture Caused by High-pressure Air Blasting
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摘要: 以多孔介质渗流理论为基础,应用有限元软件对不同压力下空气爆破致裂煤体进行模拟计算。研究表明:随着爆破煤体的高压空气压力的增高,受爆破冲击分布的煤体范围逐渐增大;靠近爆破钻孔部分的煤体受到的冲击较大,而对于远离爆破钻孔的煤体深部影响相对较小。Abstract: Based on porous medium permeability theory, air bursting caused coal fracture under different pressure is simulated with ANSYS software. The study results show that coal distribution range caused by blasting shock increases gradually with the increase of high-pressure air of blasting coal. The coal closed to the blasting hole is shocked larger, but the coal far away from the blusting hole is shocked less.
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