Geo-materials have complex mechanical properties with a lot of influential factors, which cause complicated behaviors of geotechnical structures such as foundations, slopes and tunnels. Physical modeling using scaled models under clear initial and boundary conditions is one of the effective approaches to observe the behaviors and study the influence of critical factors.
This course instructs theory, requirements, technology needed in physical modeling of geotechnical problems such as the scaling laws, appropriate simplification, sample preparation and measurement of the soil behaviors.
Through lectures and group works, the students acquire fundamental knowledge of physical modeling in the field of geotechnics such as scaling laws for various geotechnical problems under static and dynamic loading conditions, simplification in model construction, soil preparation methods, measurement strategy, loading techniques.
properties of geo-materials, scaled models, scaling law, sample preparation, measurement strategy and sensors, static problems, dynamic problems, group work
|Intercultural skills||Communication skills||Specialist skills||Critical thinking skills||Practical and/or problem-solving skills|
Combination of the lectures on basic subjects on physical modeling in geotechnics and group exercises. Each group will conduct centrifuge model tests on the problems set by each group..
|Course schedule||Required learning|
|Class 1||Introduction - role of physical model in geotechnical engineering||Advantages of physical modeling and its role in geotechnical engineering practice|
|Class 2||Similitude and modeling principles||Dimensional Analysis, scaling law, modeling strategy of scaled physical model|
|Class 3||Design of physical model and model ground preparation||Modeling of soil, structures and loading, soil sample preparation techniques|
|Class 4||Modeling exercise -1: preparation of dry sand model ground in a mold||Exercise of dry sand sample preparation and|
|Class 5||Measurements strategy and sensors||Understanding sensing technology and instrumentation|
|Class 6||Recent development in physical modeling – static problems||Modeling for geotechnical problems under static loading conditions|
|Class 7||Modeling exercise-2: Bearing capacity of shallow foundation on dry sand||Model planing and excution of scaled 1G model|
|Class 8||Modeling exercise-2: continue||Idem|
|Class 9||Presentation of exercise results and discussion – Exercises 1 & 2||Idem|
|Class 10||Recent development in physical modeling – dynamic problems||Modeling for geotechnical problems under dynamic loading conditions|
|Class 11||Modeling exercise-3: Modeling of soil-structure interaction problems by centrifuge model and verification of numerical or analytical model: Orientation and Group discussion||Centrifuge modeling on soil - structure interaction problems|
|Class 12||Modeling exercise-3: Proposal||Understanding the condtions and key behavior studied in the model|
|Class 13||Modeling exercise-3: continue & progress report:||Idem|
|Class 14||Modeling exercise-3: continue||Idem|
|Class 15||Presentation of exercise results and discussion – Exercise-3||Derivation of main conclusions, confirmation of the accuracy and significance|
Handouts on each topic will be provided by lecturer.
Geotechnical Centrifuge Technology, Blackie Academic & Professional
Assignments, Reports of exercise, presentation of experimental work
Knowledge of soil mechnaics and geotechnical engineering
Interests or curiocity on any observed behavior in the model and insight to find the mechanism behind