Study by the fact that mining stride over for the first time rule in fully-mechanized coal winning caving roof face and surrounding rock stabilization,we can direct coal winning mangangment and support parameter,this afford new thinking way for analysis surrounding rock structural.

Based on theoretical analysis and actual monitored results,it was affirmed that the first flush regularity of rainwater runoff was doubtless existent in despite of that it might show differently in various local conditions.

Study on the distributing rule of gas emission in working face;

Evolvement rules of the roof control and crack field in working face;

Gas logging variation rules and interpretation method improvement for Baolang Oilfield;

Study on releasing regularity of solid chlorine dioxide;

Research on regularity of theoretical value and actual measured value in steam coal blending;

Study on waterflooding regularity of heavy oil reservoir in Henan oilfield;