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Empirical equation of liquefaction strength curve for sandy soils
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- MIKAMI Takeko
- Maeda Corporation
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- YOSHIDA Nozomu
- Tohoku-Gakuin University
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- HARADA Kenji
- Fudo Tetra Corporation
Bibliographic Information
- Other Title
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- 液状化強度曲線の類型化と経験式の提案
Description
Empirical equation of liquefaction strength curve, which is applicable in wide range of number of cycles causing liquefaction, is proposed for effective stress analysis. Past similar researches have several disadvantages from the practical point of view; soil classification is not considered and applicable range is limited to small number of cycles or uncertain. In our research, test results of undisturbed samples with variety of soil classification and with number of cycles causing liquefaction larger than 100 are collected. About 200 test results are classified from several points of view. It is found that both geological age and fine fraction content are important factors. Considering the use of practical engineering, equations predicting RL5 and RL100 from RL20 is proposed based on geological age (Bs+As or Ds). Finally, a smooth equation is proposed for liquefaction strength curve which covers number of cycles causing liquefaction between 5 and 100.
Journal
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- Journal of Japan Association for Earthquake Engineering
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Journal of Japan Association for Earthquake Engineering 16 (1), 1_10-1_18, 2016
JAPAN ASSOCIATION FOR EARTHQUAKE ENGINEERING
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Details 詳細情報について
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- CRID
- 1390001205358275200
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- NII Article ID
- 130006904160
- 130005123700
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- ISSN
- 18846246
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed