Hyperbolic functions method for analysis of rock mass displacement due to deep mining;

Development and pospect of geophysical technology in deep mining;

Influence of the key strata in deep mining to mining subsidence;

In China,with coal resource mining in deep-lying being developed,therefore,the main technology problems about prediction and control of surface subsidence are brought out.

In the conditions of mining in deep-lying,combining with the characteristics of surface subsidence,main problems of prediction and control are summed up and analyzed.

Based on analyzing problem of displacement angle of stratum mining in deep-lying conditions at present,under a determination geology mining conditions,the changing principle of displacement angle of stratum is probed into,along with exploiting depth,thickness and coal inclination angle etc,and its calculation formula is established in deep-lying.

The formation conditions,forecast and prevention of impact pressure in deep mine;

According to underground metal mining technology development at home and abroad,this paper emphatically discusses the development tendency of deep mine,high efficiency mining,continuous and no waste mining and intelligent and digital mining.

Comprehensive experiment and stability monitoring for soft and complex strata of high stress roadway in deep mine project;

Application of the technique of visual computer numerical simulation in analysis of the deep stope stability;