Development of t–z curve for piles in sands under uplift force
| Autor: | Ayman Altahrany, Aser Abbas, Mohamed Ashour |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
Tension (physics) Constitutive equation 0211 other engineering and technologies 02 engineering and technology Building and Construction Geotechnical Engineering and Engineering Geology Nonlinear system 021105 building & construction Z curve Soil water Shear stress Development (differential geometry) Geotechnical engineering Pile Engineering (miscellaneous) Geology 021101 geological & geomatics engineering Civil and Structural Engineering |
| Zdroj: | Innovative Infrastructure Solutions. 4 |
| ISSN: | 2364-4184 2364-4176 |
| Popis: | A methodology is developed to assess the load transfer (t–z) curves of piles in sandy soils under uplift/tension force based on soil–pile interaction. Compared to current practice, the proposed approach accounts for soil and pile properties and contributes to the improvement in the construction of a nonlinear (springs) t–z curve in sandy soil which can be utilized with other computer codes to model the soil–pile response under tension forces (i.e., seismic events). The technique determines the mobilized shear stress/strain in soil associated with pile upward displacement at the soil–pile interface under progressing tension forces. A nonlinear soil constitutive model is employed to evaluate the variation of soil shear stress/strain at the soil–pile interface up to failure. The presented approach accounts for the influence of the pile length and diameter on the predicted t–z curve and has been validated through a number of comparisons with measured pile-head response and t–z curves. |
| Databáze: | OpenAIRE |
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