Numerical Modeling Procedures For Practical Coal Mine . - CDCvery realistic models of coal mine rock behavior . core logging procedure to obtain numerical model .. database of axial and diametral point load tests.er diagram on coal mining,The entity-relationship (ER) diagram developed with the Microsoft .haulage plan and equipment allocation). The data-mapping process was used to establish links among the elements of the surface coal mining system, the.
er diagram on coal mining