This paper elaborates the geological and construction conditions between Hankou Station and Fanhu Station of Wuhan Rail Transit Line 2,especially the successful shield tunneling through low gas stratum between them.

The actuality of drawing coal seam gas and the suggestions to exploit the gas in Jincheng coal bureau;

Borehole sealing mechanism and a new technology for coal seam gas pressure test:a research

Based on the analyzing of the fold and fracture influences to the coal seam gas occurrence,according to the evolution history of regional geology and tectonic characteristics in Huangling No.

Analyzed coal-bed gas hosting features in Zhongling mine through coalfield geological exploration data,summarized practice and application of both walls of roadway drainage technique,affirmed this technique as effective outburst eliminating measure during anthracite roadway advancing.

This paper introduces the formation and the occurrence modes of the gas in coal body, analyzes the influence of the gas on the physical parameters of the coal, and discusses the factors influencing the coal-bed gas drainage.

Coalbed Gas Seepage Equation Affected by In-situ Stress, Geothermal Temperature and Geo-electric Effect;

As a energy resource,coalbed gas would replace oil to be the main energy with natural gas in 21st century.

The geoelectric field in geophysical field is effective on seepage properties of coalbed gas.

Affected by different geologic factors, coal bed gas may be enriched and burst out in the low-rank coals.