Study on gas flow regularity based on tracer method in gob area

This paper studied the gas flow regularity in the gob area according to the tracer gas test. The paper briefly introduced the tracer gas test process in the gob area, and set up the mathematic model of gas concentration attenuation at different sampling points to fit the sampling data. Proved by application, the technology has important theoretic and practical significance to manage gas of gob area, and to ensure safety production of coal mines.