Deformation behavior of offshore artificial island

在本研究工作中， （1）对流变学方面基础设施的分析案例研究， （2）利用RI-圆锥渗透仪对土壤概况的测量，以及（3）对粘土物理性质和机械性质之间关系的实验调查进行了评估。（1）粘土的一个维度组合中的复杂性主要受到应变率（ε）和温度（T）的影响，以及最近对这些因素进行的几项实验研究。On the basis of these results， Shibata quantified the combined effect of εand T as follows.If the stress-strain curves obtained by Constant Rate of Strain Oedometer tests at [T-D21-D2] and at [T-D22-D2 ：{{伊D22}} coincide， behavior is {{lled by a relationship bet\}{{伊D21}} D2/{伊D22}}（{伊D21} D2/{伊D22}）{伊D11/2} D1。（2）放射性同位素锥渗透仪（RI-锥）已成功应用于不同地点的实际站点调查 ... More 在世界上。在这项研究中，有两种类型的RI-Cones、中子-水分锥体渗透仪和核-密度锥体渗透仪被应用于两种粘土沉积物和两种沙子沉积物。对所有站点、自然水内容和水分密度概况进行了测量-Cones已与从实验室测试中获得的数据进行了比较，用于未分散的样本。在事实的基础上，他们表明了对粘土和沙子沉积物的良好协议， RI-Cone被发现是用于土壤调查的通用工具。（3）在这项研究中，液体极限与一些机械性能的相关性被调查了。在实验结果的基础上，粘土的复杂性与正常化的空比率（如以下所示）是唯一相关的。（e-e-D2 min-D2）/（w-e-D2 L-w-D2 L，min-D2）=f（p）这也是一种常见的空比，这是一种用于自然条件下粘土沉积物复杂性评估的有用度量。Less（低）

In this research work, (1) analytical case studies of ground settlement on the basis of rheological aspect, (2) measurement of profiles of subsoil using RI-Cone penetrometer and (3) experimental investigation on the relationship between the physical properties and mechanical properties of clays are performed.(1) The compressibility in one-dimensional consolidations of clays is mainly influenced by strain rate (ε) and temperature (T), and several experimental studies on these factors have recently been performed. On the basis of these results, Shibata quantified the combined effect of εand T as follows.If the stress-strain curves obtained by Constant Rate of Strain Oedometer tests at [TィイD21ィエD2 : εィイD21ィエD2] and at [TィイD22ィエD2 : εィイD22ィエD2] coincide, behavior is controlled by a relationship between ε and T as εィイD21ィエD2/εィイD22ィエD2≒(TィイD21ィエD2/TィイD22ィエD2)ィイD11/2ィエD1.(2) Radioisotope cone penetrometer (RI-Cone) has been successfully applied to actual site investigation at various locatio … More ns in the world. In this research work, two types of RI-Cones, Neutron-Moisture Cone penetrometer and Nuclear-Density Cone penetrometer were applied for two clayey deposits and two sandy deposits. For all site, the natural water content and wet density profiles measured with RI-Cones have been compared with the data obtained from laboratory tests carried out for undisturbed samples. On the basis of the fact that they show good agreement for both clay and sand deposits, RI-Cone are found to be versatile tools for subsoil investigation.(3) In this research, the correlation of liquid limit with some mechanical properties of reconstituted remolded clays are investigated. On the basis of the experimental results, compressibility of clays are uniquely related to the normalized void ratio as follows.(e-eィイD2minィエD2)/(wィイD2LィエD2-wィイD2L,minィエD2)=f(p)It was also shown that the normalized void ratio is the useful measure for quantitative evaluation of compressibility of natural sedimentary clay deposit. Less