摘要
当采空区内有自然发火时,将产生大量有害气体,使得采场气体成分发生变化,本文根据采空区内有害气体的运移规律,研究采场气体压力、一氧化碳等火灾气体浓度分布,预测采空区自然发火位置。本模拟研究将采场(包括工作面和采空区)作为一个系统,利用弥散动力学和渗流理论,建立采场气体运移的数学模型,采用有限元方法在电子计算机上进行解算,并可对计算结果进行处理和分析。同实测数据或直接物理实验相比,不仅容易实现,而且能提供比物理实验更详细的实验数据。
When sponstaneous combustion exists in goaf,a lot of poisonous gas is produced,which causes the variety of component of stope air.In the paper,according to the travel law of poisonous gas in goaf,the simulation compute of spontaneous combustion in the stope is carried out to research the distribution of stope-gas pressure and fire-gas(such as carbon monoxide)thickness and forecast the position of spontaneous combustion in goaf.The simulation research,looking on the stope (including working face and goaf)as a system,by solving the mathematical model of gas travel of mining distract that is set up according to the dispersion dynamics and seepage theory,adopting the finite element method,is resolved on the computer.And the calculated result can be dealt with and analyzed.Comparing with the measured data or the direct physics laboratory,it not only is easy to be realized but also can supply more detailed experimental data than physics laboratory.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2002年第2期133-136,共4页
Journal of Liaoning Technical University (Natural Science)
