煤田火区煤岩裂隙发育与火区扩散的耦合规律及机理研究

项目名称： 煤田火区煤岩裂隙发育与火区扩散的耦合规律及机理研究

项目编号： No.51304071

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 矿业工程

项目作者： 徐永亮

作者单位： 河南理工大学

项目金额： 25万元

中文摘要： 煤田火是目前威胁着人类和环境安全的主要灾害之一，而浅地表煤岩裂隙的产生和发育为煤田火的燃烧扩散提供了持续可靠的的供氧通道。但是目前煤岩裂隙对火区的供氧规律、煤岩裂隙发育特征与煤田火区燃烧扩散之间的关系仍然没有得到系统深入的研究。因此，本项目拟通过对煤田火区浅地表煤岩裂隙的产生和发育特征分析，研究煤岩裂隙发育特征对煤田火区燃烧的影响规律；通过对不同供氧浓度/燃烧温度情况下的煤岩裂隙变形特征的归纳分析，研究煤岩裂隙发育与煤体燃烧特性之间的耦合规律，采用理论与模拟手段阐述煤田火区热传导特征与火区燃烧扩散规律，从而为煤田火区的治理提供科学依据和理论指导。

中文关键词： 煤田火；煤升温特性；传热传质；特征参数；

英文摘要： The coal fire is one of the disasters which threat the safety of human-being and environment at present. And the fracture of coal rocks provides the air supply channel. Yet the characteristic of the oxygen supply to the coalfire area have not been gained the systematic research, and so the coupling relationship between fracture development and diffusion of coalfire area has not. Therefore, the project analyses the generation and development characteristic of rock coal fracture in coalfire area, and researches the flaming rules of the coalfire area effected by the fracture deformations, discusses the rules of fracture deformations with the coalfire development, and studies the coupling laws between the fracture deformations and combustion characteristic of coal, and finally elaborates the features of the coal heat conduction and the low of coalfire diffusion. And the results of the study would provide the scientific basis and theoretical guidance for controlling the coal fire.

英文关键词： coal fires；charcteristics of temperature rising of coal；heat and mass transfer；characteristic parameter；