Analysis on Gas Deposit Features and Geology Factors of Linxi Mine

In order to understand the gas deposit features of Linxi Mine, base on the geological features and gas information of Linxi Mine, the paper had a study 0 n the main geological factors influenced to the gas deposit, including the structure, the magma rocks, the seam depth, the underground water and the lithology of the ro of and floor.The results showed that the normal fault would be favorable for the gas relesed and the reverse fault would be favorable for the gas storage.The seam gas near the magma rocks would be easy to be accumulated and the gas emission could be reached at 3.2 m3/min.With the seam depth increased, the gas content would b e increased in the gradient per 100 m of 0.10 ~ 0.35 m3/t.The sandy mudstone of seam roof would be an inverse ratio to the size of the gas content and with the sandy mudstone ratio of the below seam roof decreased, the gas content would be increased from 3.0 m3/t to 5.2 m3/t. The underground water flowing would be favorable to t he gas releasing and thus the average gas content of Linxi Mine could be 4.0 m3/t lower than Zhaogezhuang Mine.