欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
针对煤田火区发展演化多场耦合作用过程,分析了热-流-固耦合机理及不同时期煤体燃烧状态及产物。揭示了煤田火区发展演化是由煤氧复合化学反应而放热升温,产生热应力及烧空区致使上覆岩层失稳塌陷,形成煤岩体裂隙网络产生裂隙场,从而为氧气及燃烧产物对流循环提供通道,进一步促使火区向深部扩展延伸的灾变机理。因此,煤田火区温度场、裂隙应力场、渗流场及化学场之间的耦合作用是加速煤体燃烧的非线性动力循环过程。
英文摘要：
Aiming at the multi-field coupling process of coalfield fire area development and evolution, this paper analyzes the thermalhydrological-mechanical coupling mechanism and states together with products of coal combustion in different periods. This paper also reveals the disaster mechanism of development and evolution of coalfield fire area as a series of activities： Heat releasing originated from coal oxygen complex chemical reactions and overlying strata collapse made by burn out area, followed by the fracture network formed by cracks in coal and rock mass, which provide circulation channel for oxygen and combustion products, ultimately the expansion of the fire disaster mechanism extending to the deep. Thus, the coupling of the coal fire thermal hydrological mechanical and chemical field is an accelerating nonlinear dynamic cycle process of coal combustion. The results provide a scientific basis for the prevention and control of coalfield fire.
同期刊论文项目
同项目期刊论文
Design and Implementation of Fire Safety Evacuation Simulation Software based on Cellular Automata M
Dynamic Simulation on Longitudinal Temperature Distribution of Tunnel Ceiling Based on Moving Fire S
The pre-controlling technology of spontaneous combustion in Gutter-up Gob for Fully Mechanized Top-c
Formation Mechanism of Coalfield Fire and Progress of Research on Extinguishing and Control Technolo
期刊信息
位置：