Title

An Analysis of Current Australian Longwall Ventilation Methods

Abstract

A study has been undertaken into the mine ventilation systems currently in use within modern Australian longwall extraction mines. The paper reviews current systems and discusses evolving changes being adopted to address the more complex problems. The analysis of current Australian longwall ventilation methods is based on a review of current practice. An analysis of the ventilation techniques used to manage the critical ventilation issues experienced provides an understanding of the engineering solutions currently utilised. With a greater understanding of the dependent nature of these issues and the existing solutions a methodology can be established for the optimisation of longwall ventilation system. These techniques when combined with a working knowledge of existing or anticipated ventilation constraints facilitate ventilation network optimisation and allow for improved management methods through increased understanding. The review was completed by visiting and surveying 16 large longwall mining operations in Australia. The selection of longwall mines was based on encompassing most pits with pronounced ventilation challenges while focusing on larger operations facing issues related to higher production. Details are given of ventilation techniques used including number of gateroads developed, longwall ventilation patterns, use of monitoring systems, methods for sealing goafs, seal and stopping practices, pressure balancing of goafs and ventilation structures.

Department(s)

Mining and Nuclear Engineering

Keywords and Phrases

Australia; Coal; Homotropal Ventilation; Longwall; Mine Layout; Mining; Seals; Stoppings; Ventilation

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2001 Research and Development Center for Electrical Engineering and Automation in Mining, All rights reserved.

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