Study of fully mechanized mining face dust pollution status;

Comprehensive evaluation model for the safety of fully mechanized mining face based on unascertained measure and AHM;

The multi-level grey entropy comprehensive evaluation on safety of fully mechanized mining face;

Application of PROMOS monitoring control system in fully mechanized face;

The study on reliability of man machine environmentsystem of fully mechanized face based on neural network;

On the basis of realizing the gently inclined coal seam mining,the mining craft,technique research and feasibility of the 18～25° large inclined angle and down inclined fully mechanized face are further analyzed.

Gas accumulation automatic monitoring-processing method on upper corner of fully mechanized coal mining face;

Application of high level gas drainage gateway to high gassy fully mechanized coal mining face;

Forecast of faults concealed in fully mechanized coal mining face by use of small fold;

Based on the optimization design of fully mechanized coal face influenced by distributed fault in Chengjiao Colliery,the author has represented the layout of bench and fan face to extract coal in the triangular area,which has improved the recovery coefficient and provided a technological basis for similar fully mechanized coal face.

The reasons of roof fallen in the fully mechanized coal face are analyzed.

This paper introduces the methods and measures of the adjustment of support tilt caused by ultrahigh mining in fully mechanized coal face.