Geological and geotechnical aspects of underground coal mining methods within Australia |
| |
| Authors: | B Scott P G Ranjtih S K Choi Manoj Khandelwal |
| |
| Institution: | 1.Mining Geomechanics,Monash University,Clayton,Australia;2.Division of Petroleum Resources,CSIRO,Clayton,Australia;3.Department of Mining Engineering, College of Technology and Engineering,Maharana Pratap University of Agriculture and Technology,Udaipur,India |
| |
| Abstract: | About one quarter of the coal produced in Australia is by underground mining methods. The most commonly used underground coal
mining methods in Australia are longwall, and room and pillar. This paper provides a detailed review of the two methods, including
their advantages and disadvantages, the major geotechnical and operational issues, and the factors that need to be considered
regarding their choice, including the varying geological and geotechnical conditions suited to a particular method. Factors
and issues such as capital cost, productivity, recovery, versatility and mine safety associated with the two methods are discussed
and compared. The major advantages of the longwall mining method include its suitability for mining at greater depth, higher
recovery, and higher production rate compared to room and pillar. The main disadvantages of the room and pillar method are
the higher risks of roof and pillar collapse, higher capital costs incurred as well as lower recovery rate. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
