Numerical Simulation of Spontaneous Combustion Surroundings in Goaf in Fully Mechanized Caving Face
WANG Ye
ZHU Kai
ZHU Jian-fang
Abstract：In order to study three -zone distribution 1aws in mined-out areas of fully -mechanized caving face, based on the theories of seepage mechanics and computational fluid dynamics (CFD), a mathematical-physical model to simulate the flow of air and gas in fully mechanized top -coal caving face was built.Taking 7354 working face of Kongzhuang mine in China for an example , residual coal spontaneous combustion was studied.The results show that the wind velocity field ,the oxygen and the three zones division obtained using the method of numerical simulation conform basically to the results of actual measurement.The feasibility and effectiveness of the technique of numerical simulation is proved.The comparison of the simulation results with leak sealing technique or gas drainage technology provide a theoretical support for constructing reasonable and efficient technical measures of spontaneous combustion prevention and control.
Keywords：fully mechanized caving facegoafspontaneous combustion surroundingsthree-dimension nu-merical simulation
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 85-89 )