›› 2012, Vol. 33 ›› Issue (2): 402-406.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study of dynamic characteristics of saturated calcareous soil explosion compaction

XU Xue-yong1, 2, WANG Ren2, HU Ming-jian2, MENG Qing-shan2   

  1. 1. HydroChina Huadong Engineering Corporation, Hangzhou 310014, China; 2. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2010-06-27 Online:2012-02-10 Published:2012-02-14

Abstract: Exploring saturated calcareous soil explosion compacting mechanism and effect through the experimental study have great theoretical and practical significance on engineering construction in calcareous soil area. First, longitudinal wave velocity and surface settlement are tested at different moments before and after explosion under different explosive parameters through indoor mini-explosive compacting experiment. And then, wave velocity characteristics and settlement rules are studied to reveal dynamic characteristics of saturated calcareous soil explosion compaction through analyzing and contrasting the test results. It is suggested that high void ratio and particle breakage characteristics of calcareous soil have great impact on compacting effect. After explosion, breakage and compression cavity are formed in the neighborhood of explosion because of calcareous soil particle breakage resulted from the heavy shock of explosion, compression cavity would relax along with time lapse, the explosion compaction process is completed within two hours.

Key words: calcareous soil, explosion compaction, sonic wave characteristics, settlement rules

CLC Number: 

  • TU 435
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