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Development of a window laminar strong box
| Content Provider | Scilit |
|---|---|
| Author | Chian, S. C. Qin, C. Zhang, Z. |
| Copyright Year | 2018 |
| Description | In physical modelling, laminar strong boxes are commonly used to allow for deformation comparable to the soil which is subject to shaking at the base of the model. This is achieved with a series of rings capable of sliding over one another. This therefore permits the development of stresses and strains associated with the upward propagation of shear waves and achieve the semi-infinite extent of prototype geotechnical structures, allowing dissipation of energy without significant reflection of stress waves due to rigid boundaries. Unfortunately, due to the requirement of the boundary to be made into separate rings, it is often unable to accommodate a window panel for Particle Image Velocimetry (PIV) analysis, which has become very popular amongst physical modellers. A unique window laminar box was hence developed to achieve both objectives. The design philosophy and construction details, as well as results from dynamic centrifuge tests are presented in this paper. In physical modelling, laminar strong boxes are commonly used to allow for deformation comparable to the soil which is subject to shaking at the base of the model. This is achieved with a series of rings capable of sliding over one another. Geotechnical centrifuge modelling is a technique to replicate geotechnical structures in the field by subjecting small scale models to high centrifugal accelerations. Soil is a highly non-linear material. It is therefore essential to replicate identical stress and strain conditions as in the prototype scale in laboratory tests. Geotechnical centrifuge modelling achieves these conditions with the use of high centrifugal acceleration to scale up the model. The equivalent shear beam (ESB) box involves designing the shear stiffness of the walls of the box to match the shear stiffness of the soil. This chapter discusses the development of a laminar box with window opening to allow the increasingly popular Particle Imaging Velocimetry (PIV) technique to be applied with ease. Book Name: Physical Modelling in Geotechnics |
| Related Links | https://content.taylorfrancis.com/books/download?dac=C2018-0-86959-9&isbn=9780429438660&doi=10.1201/9780429438660-48&format=pdf |
| Ending Page | 358 |
| Page Count | 4 |
| Starting Page | 355 |
| DOI | 10.1201/9780429438660-48 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2018-07-11 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Physical Modelling in Geotechnics Geological Engineering Particle Imaging Image Velocimetry Geotechnical Structures Rings Capable Deformation Comparable |
| Content Type | Text |
| Resource Type | Chapter |
