Program-assisted analysis of the transverse pressure capacity of block stoppings for mine ventilation control

Abstract

Program-Assisted Analysis of the Transverse Pressure Capacity of Block Stoppings for Mine Ventilation Control Timothy J. Batchler Previously a new test procedure, based on rigid arching, had been developed to determine the true transverse pressure capacity of mine ventilation block stoppings. Using this test procedure, a parametric study of the design parameters was tested to determine the arching capability in block stoppings. Theoretical assessments of arching and design equations were developed creating design guidelines based on the physical properties of the block stoppings. Based on these design guidelines, a computer program was developed to simulate the transverse pressure capacity of mine ventilation block stoppings. Inputs from users will generate a set of representative scenarios simulating a particular system. Users can incorporate block characteristics, mine opening dimensions, mine roof/floor boundary conditions addition of deformable materials and other parameters relevant to the design capabilities of the block stoppings. This program will provide a comparison summary of transverse pressure capacity of various block types under arch loading conditions. iii Dedication This thesis is dedicated to my daughter Marion and my wife Johnna who have supported me all the way since the beginning of my studies and has been a great source of motivation and inspiration. From the formative stages of this thesis, to the final draft, I owe an immense debt of gratitude to my supervisor, Dr. Thomas M. Barczak. His sound advice and careful guidance were invaluable.