A fundamental study on in-situ cyclic loading test method using a horizontally vibratory cone probe

DOI Web Site 3 References
  • TANIMOTO Shunsuke
    Public Works Research Institute, Soil Mechanics and Dynamics Research Team, Geology and Geotechnical Engineering Research Group
  • OTSUBO Masahide
    Public Works Research Institute, Soil Mechanics and Dynamics Research Team, Geology and Geotechnical Engineering Research Group
  • SASAKI Tetsuya
    Public Works Research Institute, Soil Mechanics and Dynamics Research Team, Geology and Geotechnical Engineering Research Group

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Other Title
  • 水平方向に振動するコーンプローブを用いた原位置繰返し載荷試験法に関する基礎的検討

Abstract

<p>This paper examines in-situ cyclic loading test method using a horizontally vibratory cone probe for the purpose of further improving the accuracy of liquefaction assessment. First, the outline of the device developed in this research was introduced, and an interpretation of the dynamic behaviour of a probe vibrating in the ground was attempted with a simplified model. Furthermore, among various test methods that combine vibrating operation with a vibratory cone and push-in/pull-out operation with a press-in device, three methods were selected for comparison: vibration push-in test method, vibration pull-out test method, and fixed-depth vibration test method. The applicability of these three methods as a test method for liquefaction characteristics was confirmed by field experiments and model experiments, and the merits and demerits of each method were summarized. Based on the results of a series of studies, it was concluded that the fixed-depth vibration test method is the most promising for future development in terms of the clarity of the test principle and work efficiency.</p>

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