A Master Environmental Control and Mine System Design Simulator for Underground Coal Mining. Volume IV. Roof Support. Subsystem.

摘要

This report is volume 4of an 11-volume report on a dynamic general purpose computer simulation model for underground coal mining. This volume describes the roof support subsystem of the Master Design Simulator. This model is based on popular roof support practices for different geological environments with related restrictions imposed by the Coal Mine Health and Safety Act of 1969. From geological sections,the model determines the anchor horizon for roof bolts and the density of roof support necessary. The roof support subsystem is tied to both the geology and reserves subsystem and the production subsystem of the Master Design Simulator,but can also operate as a free-standing model. Several case studies are presented showing the application of the model. A detailed user's manual,including a program listing,is presented in the appendices.