Analog Simulated Research on Flow Field for Goaf in Fully Mechanized Caving Longwall Face
In order to research the air pressure distribution in goaf, the 3D model of the goaf for the fully mechanized top-coal longwall caving face was designed and manufactured. The proportion of the model and real object is 1:100. In the model some laneways and zones were designed, such as intake, return, high level gas drainage gateway, the collapsed zone and the fractured zone. Three rows of pressure sensors were laid out in the model, three layers in every row, in all 120 air pressure sensors. Data gathering is completed automatically by 7v14 data gathering device and self-programming soft. The air pressure distribution in the goaf was measured under the different ventilation mode and under the different air quantity, the test results were analyzed. It is significant to control gas and spontaneous combustion in goaf.
goaf fully mechanized top-coal caving flow field analog simulation 3D model
ZHU Jianfang QIN Yueping CHEN Yongquan
School of Safety Engineering, North China Institute of Science and Technology, Beijing, 101601 School of Resource & Safety Engineering, China University of Mining and Technology, Beijing, 100083 China Standard Research Center, Beijing, 100029
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
3-7
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）