Influencesofdilatancyonrockpropertiesundershockloading

WANG Jun-qi; WANG Liang; ZHANG Jie

doi:10.11883/1001-1455(2012)03-0333-04

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WANG Jun-qi, WANG Liang, ZHANG Jie. Influencesofdilatancyonrockpropertiesundershockloading[J]. Explosion And Shock Waves, 2012, 32(3): 333-336. doi: 10.11883/1001-1455(2012)03-0333-04

Citation:

WANG Jun-qi, WANG Liang, ZHANG Jie. Influencesofdilatancyonrockpropertiesundershockloading[J]. Explosion And Shock Waves, 2012, 32(3): 333-336. doi: 10.11883/1001-1455(2012)03-0333-04

WANG Jun-qi, WANG Liang, ZHANG Jie. Influencesofdilatancyonrockpropertiesundershockloading[J]. Explosion And Shock Waves, 2012, 32(3): 333-336. doi: 10.11883/1001-1455(2012)03-0333-04

Citation:

WANG Jun-qi, WANG Liang, ZHANG Jie. Influencesofdilatancyonrockpropertiesundershockloading[J]. Explosion And Shock Waves, 2012, 32(3): 333-336. doi: 10.11883/1001-1455(2012)03-0333-04

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Influencesofdilatancyonrockpropertiesundershockloading

doi: 10.11883/1001-1455(2012)03-0333-04

1.
CollegeofPetroleum Engineering,Xi’anShiyouUniversity,

Funds:

NationalNaturalScienceFoundationofChina(51174162)

More Information

Corresponding author: WANG Jun-qi
Publish Date: 2012-05-25

Abstract

Abstract

Drop-hammerloadexperimentswereperformedondifferentrocksamples.Bychangingthe drophammerweight,dropheightandpistonrodspacermaterial,transientshockpressurepulsesin therocksampleswererecordedbythepressuregauges.Experimentalresultsindicatethatthepropertiesoftherocksundergothefollowingchangesinducedbydilatancy:( 1)thepermeabilityoftherocks increasesinvaryingdegrees,andthedensertherockis,thegreatertheincreasemultipleofthepermeabilityis;( 2)theelasticmodulusandelasticlimitdecreasewiththeincreaseofrockvolume;(3) thepropagationvelocitiesoflongitudinalandtransversewavesdecreaseintherocks;(4)theporosities intherocksincreaseduetotheextensionofthenew-producedorinherentmicro-cracksintherocks.
- solidmechanics,
- dilatancy,
- impactload,
- rock,
- permeability