Study on Analysis of Subsidence and Settlement of Soft Ground caused by Repeated Loading

软土地基反复荷载沉降沉降分析研究

• 批准号: 02302063
• 负责人: TOHNO Ikuo
• 金额: $ 0.77万
• 依托单位: National Institute for Environmental Studies
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02302063/
• 关键词: Repeated Loading; Land Subsidence; Consolidation; Numerical Analysis; Soft Ground; Settlement; Clay

We have collected and classified many case studies on the settlements in soft ground under repeated and cyclic loading.We have outlined a mechanism for cyclic-induced settlement in soft ground.We have proposed a procedure for predicting earthquake-induced settlements. The applicability of the method has been calibrated with a computer program based on the proposed analytical procedure with numerical calculations using parameters suitable for actual field conditions.An analytical procedure together with a computer program has been proposed for the prediction of wave-induced settlements of seabed soil. It should also be noted that the analytical method can be applied to the estimation of the stability of the seabed under wave loading.We have proposed a method for one-dimensional consolidation settlement analysis with change of groundwater level. The calculated results of two numerical methods fits well with the experimental results in Saga-Shiraishi and Okazaki Plains.

本文收集和整理了大量关于反复荷载作用下软土地基沉降的实例研究，提出了软土地基循环沉降的机理，并提出了一种预测地震沉降的方法。根据所提出的分析方法和适用于现场实际情况的参数进行数值计算，并编制了相应的计算程序，验证了该方法的适用性，提出了一种用于预测波浪引起的海床沉降的分析方法和计算程序。本文还提出了考虑地下水位变化的一维固结沉降分析方法。两种数值方法的计算结果与佐贺白石平原和冈崎平原的实验结果吻合较好。

项目成果

安原 一哉 他: "Cyclicinduced settlement in soft clays" European Conf,SMFE,. 8ー1. 887-890 (1991)

Kazuya Yasuhara 等人：“软粘土中的循环诱发沉降”欧洲会议，SMFE，887-890 (1991)。

YASUHARA, K., M. HYODO, T. KONAMI and K. HIRAO: "Earthquake-induced settlement in soft grounds." Proc. 2nd Int. Conf. Geotechnical Earthquake Eng. and Soil Dynamics. No. 3-9. 365-370 (1991)

YASUHARA, K.、M. HYODO、T. KONAMI 和 K. HIRAO：“地震引起的软土地基沉降。”

梅崎 健夫: "繰返し荷重を受ける粘土の応力・ひずみ関係" 繰返し応力を受ける地盤の変形に関するシンポジウム発表論文集. 61-68 (1990)

Takeo Umezaki：“循环荷载下粘土的应力-应变关系”循环应力下土壤变形研讨会论文集 61-68 (1990)。

坂井 晃他: "地下水位の季節的変動による地盤沈下" 繰返し応力を受ける地盤の変形に関するシンポジウム. 87-92 (1990)

Akira Sakai 等人：“地下水位季节性波动导致的地面沉降”关于反复应力下地面变形的研讨会 87-92 (1990)。

平尾 和年: "地震時の軟弱地盤の再圧密沈下" 繰返し応力を受ける地盤の変形に関するシンポジウム発表論文集. 121-128 (1990)

Kazutoshi Hirao：“地震期间软土地基的重新固结沉降”循环应力下土地变形研讨会论文集 121-128 (1990)。