Earthquake-induced slope displacements in heterogeneous soils with tensile strength cut-off
| Autor: | Guang-Hui Chen, Ze-Hang Qian, He-Yang Shi, Qiu-Jing Pan, Jin-feng Zou |
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| Rok vydání: | 2020 |
| Předmět: |
Discretization
0211 other engineering and technologies Failure mechanism 02 engineering and technology 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology 01 natural sciences Physics::Geophysics Computer Science Applications Acceleration Limit analysis Ultimate tensile strength Soil water Crest Geotechnical engineering Cut-off Geology 021101 geological & geomatics engineering 0105 earth and related environmental sciences |
| Zdroj: | Computers and Geotechnics. 124:103637 |
| ISSN: | 0266-352X |
| DOI: | 10.1016/j.compgeo.2020.103637 |
| Popis: | This study aims to propose an effective approach to estimate the earthquake-induced displacements of a slope in heterogeneous soils considering the tensile strength cut-off. In the framework of the upper-bound limit analysis theory, an improved failure mechanism generated from the slope crest using the discretization technique is developed to determine the critical seismic acceleration coefficients with tensile strength cut-off. By using the Newmark’s method, the earthquake-induced displacements of slopes are then estimated based on the proposed failure mechanism. The proposed method is validated by comparisons with experimental results and numerical modellings in terms of the predicted displacements and failure surfaces. Finally, the displacements induced by a real earthquake are presented for two heterogeneous slopes with considering tensile strength cut-off. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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