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ZHANG Xian-min, LÜ Yao-zhi, DONG Qian, ZHANG Yu-hui. Evaluating compaction quality of soil-rock mixture based on theory of elastic waves[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(11): 2051-2057. DOI: 10.11779/CJGE201511016
Citation: ZHANG Xian-min, LÜ Yao-zhi, DONG Qian, ZHANG Yu-hui. Evaluating compaction quality of soil-rock mixture based on theory of elastic waves[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(11): 2051-2057. DOI: 10.11779/CJGE201511016

Evaluating compaction quality of soil-rock mixture based on theory of elastic waves

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  • Received Date: August 19, 2014
  • Published Date: November 19, 2015
  • A new method based on the theory of elastic waves is founded to evaluate the compaction quality of soil-rock mixture accurately and efficiently. Based on large numbers of laboratory tests and analyses, the model for shear wave velocity propagation in soil-rock mixture is established. Then the compaction of fine-grain soil between rocks can be calculated, and it can represent the compaction quality of soil-rock mixture. In the end, the maximum dry densities of the fine-grained soil in different kinds of the soil-rock mixture with different quantities of water and rock are presented according to the results of a lot of vibration compaction tests in laboratory, and the criteria for the nominal compaction quality of soil-rock mixture are constituted. The relationship between the shear wave velocity and the Rayleigh wave velocity is analyzed, and the results can give a hand to get shear wave velocity by Rayleigh wave tests. Finally, the proposed method is used to evaluate a program of airport runway soil-rock mixture foundation to verify its feasibility.
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