The environment impact of the coal resources mining was analyzed. The method of economic evaluation for the coal mining was established to analyze land destruct
The stress strength factor, length and opening degree of cracks around boreholes as well as movement regularity of blockage with the smooth blasting by water co
The quantitative evaluation of errors involved in a particular numerical modelling is of prime importance for the effectiveness and reliability of the method. E
This paper describes the new method that is introduced into prediction of subsidence using system engineering method with acoustic logging and density logging.