Analysis on the reliability of mining system of fully mechanized caving face in complex geological conditions;

Comprehensive gas control in high production and high efficient fully mechanized caving face of Tangshan mine;

Dynamic numeric simulation of coal self-ignite in goaf in fully mechanized caving face;

Mechanical characteristics of fully mechanized top-coal caving face and surrounding rock stress shell;

The reliability analysis of the velocity ratio of coal cutting to support moving in fully mechanized top-coal caving face;

Numerical simulation of distribution regularities of dust concentration in fully mechanized top-coal caving face;

Research of the prediction on production capability of fully mechanized sub-level caving face;

5201 fully mechanized sub-level caving face in Wangzhuang Coal Mine of Lu'an Mining Group, and based on the successfully retaining of small section entry along gob side, the method of J-shape ventilation system and its regulating technology were put forward for controlling high gas emission at fully mechanized sub-level caving face.

Influence law of coal pillar width to mining gateway displacement of fully mechanized top coal caving mining face;

The paper studied the goaf features and goaf gas accumulation status of the fully mechanized top coal caving mining face in Jining No.

The paper introduced the mine penetrated CT operation method in the fully mechanized top coal caving mining face of Yangcheng Mine and th.

Through adopting the deep-hole and pre-shear blasting technology,the per unit yield of working face and extraction rate are raised,the problems of difficult caving of roof coal and low extraction rate caused by coal hard and inserting gangue at the fully mechanized face with caving of roof coal in the huge thick coal seam are solved.