Sample quality of cohesive soils: Lessons from three sites, Ariake, Bothkenner and Drammen

DOI NDLデジタルコレクション Web Site Web Site Web Site 被引用文献26件 参考文献65件

書誌事項

タイトル別名
  • Sample Quality of Cohesive Soils. Lessons from Three Sites, Ariake, Bothkennar and Drammen.

この論文をさがす

説明

Sample quality was studied at three sites ; Ariake (Japan), Bothkennar (Britain) and Drammen (Norway), using various types of samplers. It was found that the unconfined compression strength (qu) is significantly affected by the sample quality. Sample quality obtained by the Japanese standard (JPN) sampler is the same as that by the Laval or the Sherbrooke samplers, which have a worldwide reputation for their ability to get high quality samples. However, there is a remarkable difference in qu for the lean clay layer of the Drammen clay between the JPN and the Sherbrooke samplers. It is concluded from a series of soil investigations that the reduction of the qu value may be caused by two different reasons : loss of the residual effective stress and destruction of the soil structure. In most of the previous studies, these two phenomena were thought to take place concurrently. When the structure is kept unchanged and only the residual effective stress is lost, the recompression technique, where a specimen is consolidated under the same stress level as in situ, is effective in producing the in situ soil behavior. However, if the soil structure is destroyed and its e-log p curve is different from the original one, the recompression technique is not capable of providing real soil behavior.

収録刊行物

被引用文献 (26)*注記

もっと見る

参考文献 (65)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ