Forecast correct model of overpressure attenuation during gas explosion in excavation roadway

作     者：YANG Ying-di ZHANG Guo-shu CHEN Cai-yun 

作者机构：Safety ＆ High Efficient Coal Mining Key Lab Co-constructed by Anhui Province with Ministry of Education College of Energy ＆ Safety Anhui University of Science ＆ Technology Huainan 232001 China 

出 版 物：《Journal of Coal Science & Engineering(China)》 (煤炭学报（英文版）)

年 卷 期：2010年第16卷第3期

页      面：267-271页

学科分类：02[经济学] 0202[经济学-应用经济学] 020208[经济学-统计学] 081901[工学-采矿工程] 0819[工学-矿业工程] 07[理学] 08[工学] 0714[理学-统计学（可授理学、经济学学位）] 070103[理学-概率论与数理统计] 0701[理学-数学] 

基　　金：Supported by the National Natural Science Foundation of China(50874005) Anhui Province College Young Teachers Scientific Research"Allotment Planning"Key Project(2009SQRZ067) 

主　　题：excavation roadway gas explosion overpressure amount forecast model 

摘      要：Through analyzing experimental data of gas explosions in excavation roadwaysand the forecast models of the literature, Found that there is no direct proportional linearcorrelation between overpressure and the square root of the accumulated volume of gas,the square root of the propagation distance multiplicative ***, attenuation speedof the forecast model calculation is faster than that of experimental *** on theoriginal forecast models and experimental data, deduced the relation of factors by introducinga correlation coefficient with concrete volume and distance, which had been verifiedby the roadway experiment *** results show that it is closer to the roadway experimentaldata and the overpressure amount increases first then decreases with thepropagation distance.