Collapsingprocessofchimneydemolitionbydirectionalblasting

YAN Zhi-xin; YE Zhen-hui; LIU Pei-lin

doi:10.11883/1001-1455(2010)06-0607-07

Volume 30 Issue 6

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YAN Zhi-xin, YE Zhen-hui, LIU Pei-lin. Collapsingprocessofchimneydemolitionbydirectionalblasting[J]. Explosion And Shock Waves, 2010, 30(6): 607-613. doi: 10.11883/1001-1455(2010)06-0607-07

Citation:

YAN Zhi-xin, YE Zhen-hui, LIU Pei-lin. Collapsingprocessofchimneydemolitionbydirectionalblasting[J]. Explosion And Shock Waves, 2010, 30(6): 607-613. doi: 10.11883/1001-1455(2010)06-0607-07

YAN Zhi-xin, YE Zhen-hui, LIU Pei-lin. Collapsingprocessofchimneydemolitionbydirectionalblasting[J]. Explosion And Shock Waves, 2010, 30(6): 607-613. doi: 10.11883/1001-1455(2010)06-0607-07

Citation:

YAN Zhi-xin, YE Zhen-hui, LIU Pei-lin. Collapsingprocessofchimneydemolitionbydirectionalblasting[J]. Explosion And Shock Waves, 2010, 30(6): 607-613. doi: 10.11883/1001-1455(2010)06-0607-07

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Collapsingprocessofchimneydemolitionbydirectionalblasting

doi: 10.11883/1001-1455(2010)06-0607-07

1.
KeyLaboratoryof MechanicsonDisasterandEnvironmentin WesternChina,
2.
TheMinistryofEducationofChina,Lanzhou730000,Gansu,China;

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Corresponding author: YE Zhen-hui
Publish Date: 2010-11-25

Abstract

Abstract

Thebasicprinciplesofchimneyblastingdemolitionwereintroduced.Aimedtothecollapsingprocessofchimneys, themechanicalmodelsweredevelopedtoderivethelargestrangesofchimneybendingmomentandshearstressbythemathematicalmethods. Andthecollapsingprocessesof chimneysweresimulatednumericallybyusingthefiniteelementsoftwareLS-DYNA3Dandthesimulatedresultswerecomparedwiththeactualcollapsingprocessofchimneys. ItisrevealedthatthefiniteelementsoftwareLS- DYNA3Dcanbeusedtostimulatethecollapsingprocessofchimneyblasting, forinstance,thepartsatthedistancesfromthegroundabout1/3,1/2,and2/3,wherethere arestressconcentrationphenomena,areeasilytobebrokenduringthecollapsingprocess.Thebroken partandtimeofthechimneylinkscloselytothecuttingshapeandthephysicalandmechanicalpropertiesofthestructureitself. Thereisobviousdifferencebetweenthebrickchimneyandreinforcedconcretechimney.
- mechanicsofexplosion,
- mechanicalmodel,
- ANSYS/LS-DYNA,
- chimney,
- blastingdemolition