煤层综放工作面采空区漏风情况的计算机模拟

采空区漏风是形成煤矿井下自燃的重要因素之一,同时也是国内外煤炭通风研究领域中的重点课题。以山东兖州集团王庄煤矿7150工作面采空区为研究对象,建立了该采空区漏风特性的数学模型,按照实际情况绘制了物理模型及边界条件。利用计算机模拟程序对采空区流场及氧气浓度分布进行模拟分析,并验证了结果的有效性和准确性。本研究为井下采空区防火措施的制定提供了科学依据。

Simulation of Fully Mechanized Coal Face with Caving Goaf Air Leakage of Computer

Air leakage in gob area is one of the important factors in the formation of coal spontaneous combustion, but also the key issue in the field of domestic and foreign study on ventilation of coal. This paper takes Shandong Yanzhou group Wang Zhuang coal mine 7150 working face goaf as the research object, establishes the mathematical model of air leakage characteristics of the mining, according to the physical model and boundary condition of the actual situation of drawing. Simulation on flow field in goaf and oxygen concentration distribution were simulated and analyzed by computer, and verify the validity and accuracy of the results. To provide scientific basis for formulating the prevention measures of mining goaf for downhole.