Effect of Frozen Pipe Deflection on Development of Freezing Temperature Field in Coal Mine
Comparative study on the development process of three ring pipe freezing temperature field with and without skew freezing tube through measurement and numerical simulation in a certain mine,results show that frozen pipe is not deflected,freezing front expansion speed is relatively consistent,while frozen pipe is deflected,freezing front expansion speed is uneven,forming unfrozen pressurized water tanks of different sizes,freezing wall circle time is one to two weeks,temperature measuring hole values and aver-age temperature of frozen wall are consistent with simulated values with freezing time,deflection of frozen tube has little effect on the average temperature and effective thickness of frozen wall,and a greater impact on the circumferential temperature of well shaft.
three circle pipefrozen wall temperature fieldfreezing pipe deflection
万方数据
维普
