Similar materials of colliery filling for physical simulation experiment

Chen, S. J., Li, Y. Y., Guo, W. J., Lu, C., Wang, H. Y. and Yin, D. W. (2015) Similar materials of colliery filling for physical simulation experiment. Materials Research Innovations, 19 S5: 304-307. doi:10.1179/1432891714Z.0000000001098


Author Chen, S. J.
Li, Y. Y.
Guo, W. J.
Lu, C.
Wang, H. Y.
Yin, D. W.
Title Similar materials of colliery filling for physical simulation experiment
Journal name Materials Research Innovations   Check publisher's open access policy
ISSN 1432-8917
1433-075X
Publication date 2015-05-01
Year available 2015
Sub-type Article (original research)
DOI 10.1179/1432891714Z.0000000001098
Volume 19
Issue S5
Start page 304
End page 307
Total pages 4
Place of publication Leeds, W Yorks, United Kingdom
Publisher Maney Publishing
Collection year 2016
Language eng
Formatted abstract
To study the interaction between the backfill and the overlying strata in paste filling mining, experiments were conducted on new similar materials of filling like raw materials of river sand, fly ash and cement, and the setting time and uniaxial compressive strength were main parameters. The optimal proportion of similar materials of filling was obtained by the uniform design method. Results show that there is a negative correlation between the uniaxial compressive strength of the similar materials of filling and the sand content and a positive correlation between the strength and cement content. The fly ash could not only reduce the setting time, but also could lead to a decrease in strength. The optimal proportion of river sand, fly ash and cement is 31 : 7 : 1, when the geometrically similar ratio is 1 : 100. Simulation test results using similar materials of filling prove that it could meet the experimental requirements.
Keyword Paste filling
Similar materials of filling
Dynamic simulation
Physical simulation
Uniform experiment
Model
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Earth Sciences Publications
Official 2016 Collection
 
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