Characterization of Coal Mine Overburden and Assessment as Mine Haul Road Construction Material

被引:5
|
作者
Mallick S.R. [1 ]
Verma A.K. [1 ]
Rao K.U. [1 ]
机构
[1] Department of Mining Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, West Bengal
关键词
California bearing ratio; Haul road design; Opencast mine; Pavement;
D O I
10.1007/s40033-016-0126-8
中图分类号
学科分类号
摘要
This paper presents details of laboratory investigation carried out on coal mine overburden materials to check their suitability in base/sub-base of mine haul road pavement. In this investigation, strength characteristics of un- stabilized overburden materials are evaluated. Strength characteristics of overburden materials are obtained through laboratory tests by physical, mechanical, chemical and micro-structural analysis. The laboratory investigation shows untreated murrum, top soil and sub soil are not suitable to be used as mine haul road construction material. In this investigation, CBR method is used for layer thickness as well as cover thickness calculation. The paper also discusses the importance of various tests required for evaluation and assessment of mine haul road. © 2016, The Institution of Engineers (India).
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页码:167 / 176
页数:9
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