Field Test Research on Two-dimensional Gas Concentration and Temperature Distribution in the Goaf of Fully Mechanized Caving Face
The gas,oxygen,carbon monoxide and acetylene concentration and the temperature distribution of longwall goaf areas were analyzed by means of burying pipes and temperature sensor.Furthermore,the regulation of three zones distribution of 1361 face in Jiny uan colliery by the oxygen concentration and the temperature distribution has been worked out,and the limited velocity of the working face has been marked off.The research results showed that the gas concentration was low intake airflow roadway along goal towards direction.The goaf gas concentration in return airway was far higher than intake airflow roadway.There was not combustion phenomenon during the test in the 1361 goafof the coal mining.Meanwhile,the results also confirmed mining extraction process source of gas accumulation in face comer,also can be used for providing the basis of enacting fhe prevention measures in the goafand gas management measures for face comer.
Fully mechanized caving face Two-dimensional Goaf Test study
Gang Wang Weimin Cheng Jun Xie
State Key Laboratory of Ministry of Mining Disaster Prevention and Control, Shandong University of S CSIRO Earth Science and Resource Engineering, P.O.Box 883, Kenmore, QLD 4069, Australia
国际会议
2012 International Symposium on Safety Science and Engineering in China (2012安全科学与工程国际会议)
北京
英文
478-483
2012-11-07（万方平台首次上网日期，不代表论文的发表时间）