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Volume 39 Issue 4
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LIU Han-long, WANG Wei-guo, LIU Jun, CHEN Yu-min, YANG Gui. Large-scale field tests on blast-induced liquefaction in saturated sand[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(4): 601-608. DOI: 10.11779/CJGE201704003
Citation: LIU Han-long, WANG Wei-guo, LIU Jun, CHEN Yu-min, YANG Gui. Large-scale field tests on blast-induced liquefaction in saturated sand[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(4): 601-608. DOI: 10.11779/CJGE201704003
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Large-scale field tests on blast-induced liquefaction in saturated sand

  • 1. College of Civil Engineering, Chongqing University, Chongqing 400450, China;
    2. Ningbo Traffic Construction Project Testing and Inspection Center Co., Ltd., Ningbo 315124, China;
    3. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China

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  • Received Date: October 13, 2015
  • Published Date: May 19, 2017
    Graphical Abstract
    • Abstract
  • The vibration-induced liquefaction in soils is a notable hottopic in geotechnical engineering. The building collapse and embankment burst induced by liquefaction are fatal for the loss of lives and properties of human beings. A series of blasting tests including single explosive charge and multiple underground blasts with millisecond delays are conducted in a large-scale field site filled with saturated sand. The methods of borehole drilling and charge burying, monitoring equipment, design of concrete structure and embankment, and other technical details about blast-induced liquefaction are introduced. The liquefaction mechanism produced by single shallow-buried detonation or multiple blasts is studied firstly. Then the influence factors on the blast-induced liquefaction are analyzed. Based upon these results, the method to produce a large area of liquefaction condition is determined. Finally, the stability of a concrete structure and a soil-embankment on the liquefaction ground is discussed. The successful implementation of blast-induced liquefaction tests can provide references for artificially producing large-scale liquefaction environment.
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    • References (17)
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