Experimental study on low-strength similar-material proportioning and properties for coal mining

Chen, Shaojie, Wang, Hailong, Zhang, Junwen, Xing, Huilin and Wang, Huaiyuan (2015) Experimental study on low-strength similar-material proportioning and properties for coal mining. Advances in Materials Science and Engineering, 2015 696501.1-696501.6. doi:10.1155/2015/696501


Author Chen, Shaojie
Wang, Hailong
Zhang, Junwen
Xing, Huilin
Wang, Huaiyuan
Title Experimental study on low-strength similar-material proportioning and properties for coal mining
Journal name Advances in Materials Science and Engineering   Check publisher's open access policy
ISSN 1687-8434
1687-8442
Publication date 2015
Sub-type Article (original research)
DOI 10.1155/2015/696501
Open Access Status DOI
Volume 2015
Start page 696501.1
End page 696501.6
Total pages 6
Place of publication New York, NY, United States
Publisher Hindawi Publishing
Collection year 2016
Language eng
Abstract Similar-material simulation test is an effective tool to study the practical problems in mining and civil engineering. This paper conducts an orthogonal study on low-strength similar materials comprising sand, fly ash, and plaster and analyses the sensitivity of the materials. The mechanical properties of the similar materials strongly depend on the proportioning ratio, and they can satisfy different similar-material simulation tests. The compression strength and elastic modulus of the similar material decrease as the sand-binder ratio or cement ratio increases. There are approximately linear relations between the compression strength/elastic modulus and sand-binder ratio and approximately power relations between the compression strength/elastic modulus and sand-binder ratio. Sensitivity analysis employing the range method shows that the effects of the cement ratio on the compression strength and elastic modulus are more obvious than the effects of the sand-binder ratio. Finally, one of similar materials is used in a simulation test of coal backfill mining.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article ID 696501

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Earth Sciences Publications
Official 2016 Collection
 
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Created: Wed, 11 Mar 2015, 16:48:03 EST by Dr Huilin Xing on behalf of School of Earth Sciences