YANG Guo-liang, YANG Ren-shu, JIANG Lin-lin. Pressuredistributionalongboreholewithaxialair-deckchargeblasting[J]. Explosion And Shock Waves, 2012, 32(6): 653-657. doi: 10.11883/1001-1455(2012)06-0653-05
| Citation:
|
YANG Guo-liang, YANG Ren-shu, JIANG Lin-lin. Pressuredistributionalongboreholewithaxialair-deckchargeblasting[J]. Explosion And Shock Waves, 2012, 32(6): 653-657. doi: 10.11883/1001-1455(2012)06-0653-05
|
YANG Guo-liang, YANG Ren-shu, JIANG Lin-lin. Pressuredistributionalongboreholewithaxialair-deckchargeblasting[J]. Explosion And Shock Waves, 2012, 32(6): 653-657. doi: 10.11883/1001-1455(2012)06-0653-05
| Citation:
|
YANG Guo-liang, YANG Ren-shu, JIANG Lin-lin. Pressuredistributionalongboreholewithaxialair-deckchargeblasting[J]. Explosion And Shock Waves, 2012, 32(6): 653-657. doi: 10.11883/1001-1455(2012)06-0653-05
|
Pressuredistributionalongboreholewithaxialair-deckchargeblasting
- 1.
StateKeyLaboratoryofGeoMechanicsandDeepUndergroundEngineering,
- 2.
ChinaUniversityof MiningandTechnology,Beijing100083,China;
More Information
- Corresponding author:
YANG Guo-liang
- Publish Date:
2012-11-25
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Abstract
Simulationswereperformedtoanalyzethepropagationandsuperpositionprocessesofstress
wavesaimingtothreedifferentchargestructuresundertop,bottomandsimultaneousinitiations,respectively.
Thepressureinthemiddleoftheboreholeincreasesgreatlywhenincreasingthetopcharge
undertopandsimultaneousinitiations.Adoptingbottominitiation,thepressurepeaksofstemming
partarehigherthanthoseadoptingtheothertwoinitiations.Forthreechargestructuresunderbottominitiation,
comparisonsofthepressurecurvesalongtheboreholesdisplaythatmoreeven-distributedpressurecanbeobtainedandthecorrespondingmeanpressureishigherbyincreasingthetop
charge.Thesimulatedresultswereappliedtothefieldpracticeandthebigfragmentsweredeletedbasically.
Sotheganguebackfillefficiencycanincreasebyadoptingair-deckchargeblasting.
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References
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Proportional views
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