Probing into problems and countermeasures about prediction and control of surface subsidence mining in Deep-lying

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. Which is the concentrated expression of prediction model and its parameters, protective coal pillar designed method and its parameters. According to these problems, some relative researches are proposed, it is important to study basic theory research, surface and overlying strata movement observation and so on.