Safetythresholdofblasting-inducedrockvibration forHongyanhenuclearpowerplant

XIA Xiang; LI Hai-bo; ZHANG Da-yan; WANG Xin-yuan; LI Jun-ru

doi:10.11883/1001-1455(2010)01-0027-06

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XIA Xiang, LI Hai-bo, ZHANG Da-yan, WANG Xin-yuan, LI Jun-ru. Safetythresholdofblasting-inducedrockvibration forHongyanhenuclearpowerplant[J]. Explosion And Shock Waves, 2010, 30(1): 27-32. doi: 10.11883/1001-1455(2010)01-0027-06

Citation:

XIA Xiang, LI Hai-bo, ZHANG Da-yan, WANG Xin-yuan, LI Jun-ru. Safetythresholdofblasting-inducedrockvibration forHongyanhenuclearpowerplant[J]. Explosion And Shock Waves, 2010, 30(1): 27-32. doi: 10.11883/1001-1455(2010)01-0027-06

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Safetythresholdofblasting-inducedrockvibration forHongyanhenuclearpowerplant

doi: 10.11883/1001-1455(2010)01-0027-06

1.
StateKeyLaboratoryofGeomechanicsandGeotechnicalEngineering,InstituteofRockand
2.
SoilMechanics,ChineseAcademyofSciences,Wuhan430071,Hubei,China;
3.
ChinaPowerInvestmentCorporation,Beijing100032,China;

Funds:

NationalNaturalScienceFoundationofChina(50809070,50439030)

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Corresponding author: XIA Xiang
Publish Date: 2010-01-25

Abstract

Abstract

Abstract:BytakingtheblastingexcavationoftheHongyanhenuclearpowerplantfoundationforexample, themechanicalpropertiesoftherockmasswereanalysedinthedifferentregionsofthenuclear islands,andthedamagedepthdifferencesoftherockmasswerediscussedfordifferentlayersunder excavation.Itwaspointedoutthatthecontrolmethodandsafetythresholdshouldbebroughtforward bythepracticalrockblasting.Basedonblastingvibrationsurveyingandsoundwavetestingconducted inconstructionsite,therelationshipbetweendamagezonesizeandpeakparticlevelocitywasinvestigatedfortherockmassatagivendistancefromthecentreofthechar ingarea,andthecorresponding empiricalformulawasestablished.Accordingly,thesafetythresholdofblastingvibrationwasgiven forthedifferentrockstratainnuclearislandsandthedifferentexcavationschemewasdetermined withthedifferentallowabledamagedepth.Resultsprovethatthemethodandthresholdareapplicable toholdthedamagedepthofrockandtoensuretheintegrityofthebedrockunderblastingexcavation.
- mechanicsofexplosion,
- safetythreshold,
- blasting,
- blastingvibration,
- damage,
- nuclear powerplant