Theprincipleofsoilcompactionbyexplosion

anditsexperimentalinvestigation

PAN Qiang; ZHANG Ji-chun; GUO Xue-bin

doi:10.11883/1001-1455(2011)02-0165-08

Volume 31 Issue 2

May 2014

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PAN Qiang, ZHANG Ji-chun, GUO Xue-bin. Theprincipleofsoilcompactionbyexplosionanditsexperimentalinvestigation[J]. Explosion And Shock Waves, 2011, 31(2): 165-172. doi: 10.11883/1001-1455(2011)02-0165-08

Citation:

PAN Qiang, ZHANG Ji-chun, GUO Xue-bin. Theprincipleofsoilcompactionbyexplosion anditsexperimentalinvestigation[J]. Explosion And Shock Waves, 2011, 31(2): 165-172. doi: 10.11883/1001-1455(2011)02-0165-08

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Theprincipleofsoilcompactionbyexplosion anditsexperimentalinvestigation

doi: 10.11883/1001-1455(2011)02-0165-08

1.
SchoolofCivilEngineering,SouthwestJiaotongUniversity,
2.
Chengdu 610031,Sichuan,China;

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Corresponding author: ZHANG Ji-chun
Publish Date: 2011-03-25

Abstract

Abstract

Aimedatthestatusofexplosioncompaction,whichwasnotthoroughintheorystudyand reliedmainlyonengineeringexperiencetodetermineblastparametersinconstructions,asoilexplosioncompactionmodelwasdevelopedwhichwasbasedonplasticmechanicsandmechanicsofexplosion. Therelationsbetweencompactioneffects(compactionrange,compactiondegree)andexplosive parameterswerederivedandverifiedbythefieldtests.Thesevenfieldtestswerecarriedoutinthe holeswiththediameterof48mmandthecorrespondingnon-couplingcoefficientswere2.000,1.714, 1.500,1.333,1.200,1.091and1.000,respectively.Andtheoreticalcalculationsandfieldtestresultswerecomparedbymeasuringthesoildensitybeforeandaftertheexplosion. Investigatedresults indicatethatinthecaseofnon-couplingcharge,thetheoreticalvalueofcompactioneffectincreases withtheincreaseofnon-couplingcoefficient,whiletheexperimentaldatafirstincreasesandthendecreases, arrivingatthemaximumforthenon-couplingcoefficientofaround1.200.Fortheclayey silt,thecompactioneffectwasmorestable,thelargestcompactionrangeattains70cmandthemaximumcompressionratiois1.055. Thedevelopedsoilcompactionformulasafterexplosionaremoreaccurateandtherelativeerrorislessthan6.00%, sothattheseformulascanbeappliedtoengineering practice
- mechanicsofexplosion,
- compactionprinciple,
- explosion,
- soildensity