Development of a new apparatus for friction test between clay and steel

新型粘土与钢摩擦试验装置的研制

• 批准号: 07555157
• 负责人: OCHIAI Hidetoshi
• 金额: $ 6.4万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555157/
• 关键词: Soft ground; Steel; Frictional property; Frictional angle; Roughness; Principal stress direction; 粘土; スライスせん断; 相互作用; 粗度; 三軸; 主応力回転

Sheet-plies are used as a countermeasure to decrease the lateral deformation in soft ground caused by the construction of embankment. Evaluating the friction properties between clay and steel is one of the omportant problems in geotechnical engineering.The authors have developed a new apparatus for friction test on clay-steel system and have investigated on the friction properties between normally or over consolidated clay and steel based on the test results of a series of friction tests.The main conclusions of this study are summarized as follows :1) It was confirmed from the friction test results that the behavior of friction between clay and steel is subject to principal stress direction and an angle of contact plane.2) Friction angle between clay and steel is influenced by the steel sueface roughness and it has an upper limit and a lower limit. The upper limit is identical to the internal friction angle of clay.3) Friction behavior between clay and steel depends on the strength property of the clay and the stress conditions.

为了减小路堤施工引起的软土地基侧向变形，采用了铺层技术。土-钢摩擦特性的评价是岩土工程中的重要问题之一。作者研制了一种新的土-钢摩擦试验装置，并根据一系列的土-钢摩擦试验结果，对正常固结和超固结土-钢摩擦特性进行了研究。主要结论如下：1）试验结果表明，土与钢的摩擦特性受主应力方向和接触面夹角的影响; 2）土与钢的摩擦角受钢表面粗糙度的影响，摩擦角存在上限和下限。土与钢之间的摩擦特性取决于土的强度特性和应力条件。

项目成果

H.Ochiai, N.Yasufuku, K.Omine, S.Ohno and Y.Mikura: ""An Application of Friction Test on Clay-Steel Syetem to Overconsolidated Clay"" Technology Reports of Kyushu University. Vol.70 No.2 (Printing). (1997)

H.Ochiai、N.Yasufuku、K.Omine、S.Ohno 和 Y.Mikura：““粘土-钢系统摩擦试验在超固结粘土中的应用””九州大学技术报告。

冨永哲男,落合英俊,安福規之,大嶺聖,大野司郎: "初期応力履歴が粘土の非排水せん断特性に及ぼす影響" 九州大学工学集報. 68・6. 527-534 (1995)

Tetsuo Tominaga、Hidetoshi Ochiai、Noriyuki Yasufuku、Sei Omine 和 Shiro Ohno：“初始应力历史对粘土不排水剪切性能的影响”九州大学工程通报 68・6（1995 年）。

T.Tominaga, H.Ochiai, N.Yasufuku, K.Omine and S.Ohno: ""Effects of Initial Stress History on Undrained Shear Characteristics of Clay"" Technology Reports of Kyushu University. Vol.68 No.6. 527-534 (1995)

T.Tominaga、H.Ochiai、N.Yasufuku、K.Omine 和 S.Ohno：““初始应力历史对粘土不排水剪切特性的影响””九州大学技术报告。

富永哲男,落合英俊,安福規之,大嶺 聖,大野司郎: "初期応力履歴が粘土の非排水せん断特性に及ぼす影響" 九州大学工学集報. 68・6. 527-534 (1995)

Tetsuo Tominaga、Hidetoshi Ochiai、Noriyuki Yasufuku、Sei Omine 和 Shiro Ohno：“初始应力历史对粘土不排水剪切性能的影响”九州大学工程通报 68・6（1995 年）。

落合英俊,安福規之,大嶺聖,大野司郎,三倉義教: "粘土-鋼材間の摩擦特性試験の過圧密粘土への適用" 九州大学工学集報. 70・2(印刷中). (1997)

Hidetoshi Ochiai、Noriyuki Yasufuku、Sei Omine、Shiro Ohno、Yoshinori Mikura：“粘土-钢摩擦特性试验在超固结粘土中的应用”九州大学工程通报 70，2（出版中）。