Volumetric behaviour of subsurface ground due to tunnelling in completely drained granular soil
| Autor: | Tianqi Zhang, Tong Jingbo, Qi Fan, Gang Zheng, Jibin Sun, Ge Longbo |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0211 other engineering and technologies
Soil stress 02 engineering and technology 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology 01 natural sciences Computer Science Applications Soil volume Model test Relative density Geotechnical engineering Displacement (fluid) Geology Quantum tunnelling 021101 geological & geomatics engineering 0105 earth and related environmental sciences |
| Zdroj: | Computers and Geotechnics. 116:103217 |
| ISSN: | 0266-352X |
| DOI: | 10.1016/j.compgeo.2019.103217 |
| Popis: | In this article, numerical modelling was first conducted to investigate the volumetric behaviour of the subsurface ground in a physical model test that imitated the tunnelling process in a loose sand. A new volumetric response mechanism of the subsurface ground was revealed in which the effects of the soil stress path are of particular note. A parametric study was then performed to investigate the effects of relative density of soil, cover-to-depth ratio and displacement patterns around the tunnel on the resulting soil volume loss. The mechanisms by which these factors affect the volumetric behaviour of the subsurface ground were clarified. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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