Research on unascertained clusters on the gas emission of the working face;

The Measures of Controlling the Stress of the Top Roof of the Working Face of the "Three-soft" Coal Bed;

Application of internal entry left technology at inclined fault working face;

Technical management of preliminary roof caving at face;

Analysing on the unusual gas gush at drifting face in 928-2 wind roadway;

Combining with the equipment lectotype and equipment completing for the fully mechanized coal mining face of Kailuan Group Tangshan Mining Co.

KTC5 type network communication control devices on the coal face;

Eight methods for managing the fractured roof in fully mechanized coal face are introduced.

According to the principle of progressive regression,affecting factors on gas emission rate of coal face are selected.

Application of mine stand pump to mine water drainage in coal mining face of Jining No.3 Mine;

Geological conditions and other geophysical survey technologies of coal mining face in deep mine;

Identification BP nerve network model base on parameters of gas emission coal mining face;

Analysis and control on disasters of 2207 mining face in Cuijiagou Coal Mine;

This paper introduces the basic situation of the mining face, expounds concretely the scheme of the collapsing column detecting and the water treating, and through observing the grouting effect of exploring hole and evaluating the construction quality of inspection hole, obtains some corresponding conclusions.

the author have introduced geological structure detection of 1101 comprehensive mining face in Xinji Mine area by using earthquake CT technology.