AN IMPROVED MODEL OF SOIL RESPONSE TO LOAD, UNLOAD AND RE-LOAD CYCLES IN AN OEDOMETER

• BUTTERFIELD ROY

  Civil Engineering, University of Southampton

抄録

There are a number of advantages to be gained by representing the oedometric compression of a soil skeleton, during virgin loading, unloading and subsequent reloading by ‘log (v) versus log (p′)’ relationships rather than the conventional ‘e versus log₁₀ (p′)’ expression. The paper presents an augmented version of the basic, two parameter (C′_c, C′_s), ‘log (v) versus log (p′)’ model in which the addition of two further parameters (C′_r, C′_o) enables a complete, non-linear response for any load-unload-reload cycle to be reproduced. All four parameters, deduced from a single such cycle in an oedometer, can then be used to predict the response of the sample in any other unload-reload cycles. Results are presented from tests of this kind on a range of fine-grained soils to demonstrate the key attributes of the model. These include the generation of ‘log (m_v) versus log (p′)’ diagrams that furnish practically useful m_v values applicable throughout any unload-reload cycle. The model also provides a simple means of assessing the overconsolidation ratio of an undisturbed soil sample.<br>

収録刊行物

• ＳＯＩＬＳ　ＡＮＤ　ＦＯＵＮＤＡＴＩＯＮＳ

  ＳＯＩＬＳ　ＡＮＤ　ＦＯＵＮＤＡＴＩＯＮＳ 51 (2), 253-263, 2011

  公益社団法人 地盤工学会

キーワード

• compressibility
• compression
• consolidation test
• constitutive equations of soil
• OCR
• overconsolidation
• stress-strain curve
• (<b>IGC</b>: D5)

詳細情報

• CRID: 1390001204667023744
• NII論文ID: 130004877666
• DOI: 10.3208/sandf.51.253
• ISSN: 18811418
• ISSN: 00380806
• Web Site: https://api.elsevier.com/content/article/PII:S0038080620300378?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S0038080620300378?httpAccept=text/plain
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可