Abstract:

This paper gets the parameters of temperature and concentration of oxygen at different distances of different measuring points in mined-out area and air return lane by site buried tube observation in the gob of Wugou coal mine CT101 workface. Through analysis the change rule of temperature and oxygen concentration of each measuring point, determine the scope CT101 mined-out area spontaneous combustion "three zones". At the same time, using the method of numerical simulation, to simulate temperature field in mined-out area, obtained the general law of a "three zones" of the mined-out are.

Key words: mining with Filling, gob-side entry retained, the "three zones", of Mined-out area, the rule of spontaneous combustion