NDLI: Pressure Propagation Characteristics of Solid Waste Backfilling Material During Compaction and Its Applications In Situ

Content Provider	Springer Nature Link
Author	Deng, Xuejie Zhang, Jixiong Wit, Benjamin W. Ju, Feng
Copyright Year	2016
Abstract	Solid waste backfilling techniques are widely employed in the coal mining industry and the pressure propagation characteristics of solid waste backfilling materials are important considerations in evaluating a techniques overall effectiveness. This paper presents an experiment that evaluates the pressure propagation characteristics of backfilling materials of different particle sizes. The results show that backfilling materials with larger particle sizes have higher pressure propagation properties, while backfilling materials with smaller particle sizes are less capable of transferring pressure. Analysis indicates that there is an exponential relationship between influence factor (I) and vertical distance (Z/D), where Z/D is the depth below the center of the loading platen divided by the loading platen diameter. There is also a GaussAmp relationship between I and horizontal displacement (L/R), where L/R is the abscissa divided by the loading platen radius. The results indicate that more than 70 % of loading pressure is dissipated in the Z/D range of 0–2.75 and virtually all pressure is dissipated within the L/R range of 0–5. The results were applied in the Wugou coal mine to evaluate the effectiveness of backfilling compaction methods and the evaluate results show the backfilling compaction mechanism can work effectively.
Starting Page	1631
Ending Page	1642
Page Count	12
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	34
Issue Number	5
e-ISSN	15731529
Language	English
Publisher	Springer International Publishing
Publisher Date	2016-08-17
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pressure propagation Solid waste Backfilling material Compaction process Compaction effect evaluation Laboratory test Geotechnical Engineering & Applied Earth Sciences Hydrogeology Terrestrial Pollution Waste Management/Waste Technology Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

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