| Autor: |
Tian Rong Huang, Jianxiu Wang, Wen Bai Liu |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Applied Mechanics and Materials. :424-427 |
| ISSN: |
1662-7482 |
| DOI: |
10.4028/www.scientific.net/amm.170-173.424 |
| Popis: |
The interfacial characteristic of reinforcement plays a significant role in reinforced engineering, and stress history is one of the key factors affecting the interfacial characteristics. By using the comprehensive geosynthesis test apparatus, a series of pull-out tests were carried out by using reinforced soil composed of silt clay and biaxial polypropylene geogrid. Base on the results of the tests and their curve between shear force and displacement, the impact of stress history on the interfacial characteristics of reinforced soil was explicitly discussed in both qualitative and quantitative manner. It is revealed that the soil’s stress history has great impact on the interfacial parameter of c (cohesive force) and (internal frictions angle )of the reinforcement; the interfacial parameter of c and in silty clay is increased by 12.10% and 8.56% respectively when the OCR (over consolidation ratio) increase from 1 to 2; and methods like increasing the thickness of cover soil or increasing the times of rolling to form over-consolidation can reach more higher shear strength in specified project. The results of this research should be a guide to the test, design and construction of reinforced silty clay engineering. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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