An experimental testing apparatus for study of suffusion of granular soils in geological structures
| Autor: | Shucai Li, Z.Q. Zhou, Pathegama Gamage Ranjith |
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| Rok vydání: | 2018 |
| Předmět: |
0211 other engineering and technologies
02 engineering and technology Building and Construction 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology 01 natural sciences Volumetric flow rate Geological structure Current (stream) Electrical conduit Hydraulic conductivity Soil water Cylinder stress Geotechnical engineering Geology 021101 geological & geomatics engineering 0105 earth and related environmental sciences Permeameter |
| Zdroj: | Tunnelling and Underground Space Technology. 78:222-230 |
| ISSN: | 0886-7798 |
| Popis: | This study mainly focuses on the suffusion process of granular soils, especially that filled in geological structures, such as faults and karst conduits. As current devices only can be used for suffusion tests on cylindrical soil specimens, an experimental testing apparatus has been designed and developed for systematic research on the suffusion of granular soils filled in fractures and fractures subjected to unidirectional seepage flow. The permeameter cell is designed to enable free rotation so that unidirectional seepage can be imposed at any angle from 0° to 90°. Experiments on granular soils were carried out under different axial stresses to verify the operability and repeatability of the designed apparatus. The water pressure and axial stress applied on soil specimens were controlled during testing, and the variations of flow rate and hydraulic conductivity with water pressure under different axial stresses were analyzed to study the effect of axial stress on the suffusion of granular soils. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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