Hybrid moment tensor inversion and numerical analysis of rock fracture

ZhangLingfan; ChenZhonghui; QinFan; NianGengqian; ChenHongjie

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Article Navigation > Journal of Mining Science and Technology > 2019 > 4(5): 394-402

ZhangLingfan, ChenZhonghui, QinFan, NianGengqian, ChenHongjie. Hybrid moment tensor inversion and numerical analysis of rock fracture[J]. Journal of Mining Science and Technology, 2019, 4(5): 394-402.

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Hybrid moment tensor inversion and numerical analysis of rock fracture

SchoolofMechanicsandCivilEngineering,ChinaUniversityofMiningandTechnology,Beijing100083,China

Publish Date: 2019-10-28

Abstract

Abstract

Throughindoorrockacousticemissiontest,thestudyofthespatio-temporalevolutioncharacteristicsofacousticemissionsignalsunderdifferentfractureconditionshascertainguidingsignificance formonitoringandearlywarningofrockengineering.Throughthetensileandsheartestsofrock,the temporalandspatialevolutioncharacteristicsofdifferenttypesofrockfracturewereanalyzedbyusing theGeigerlocationmethodandthehybridmomenttensortheory,andthenumericalsimulationsoftware RFPA2Dwasusedtoverifyit.Duringthetensilefailureofrock,thecrackinginitiatedatthemaximum bendingmomentandthetensioningsignalsourceisthemainsource.Duringtheshearfailure,therocks crackfirstlyinthemiddleofthemaincrackandappearthescatteredsourceoftensionsignal,butwith theincreaseoftheload,thesourceismajorlyshearsignal.

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Hybrid moment tensor inversion and numerical analysis of rock fracture

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