Abstract
This paper shows, how a change in cone penetration rate affects the cone penetration measurements, hence the cone resistance, pore pressure, and sleeve friction in silty soil. The standard rate of penetration is 20 mm/s, and it is generally accepted that undrained penetration occurs in clay while drained penetration occurs in sand. When lowering the penetration rate, the soil pore water starts to dissipate and a change in the drainage condition is seen. In intermediate soils such as silty soils, the standard cone penetration rate may result in a drainage condition that could be undrained, partially or fully drained. However, lowering the penetration rate in silty soils has a great significance because of the soil permeability, and only a small change in penetration rate will result in changed cone penetration measurements. In this paper, analyses will be done on data from 15 field cone penetration tests with varying penetration rates conducted at a test site where the subsoil primary consists of sandy silt. It is shown how a reduced penetration rate influences the cone penetration measurements e.g. the cone resistance, pore pressure, and sleeve friction.
Originalsprog | Engelsk |
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Titel | Challenges And Innovations In Geotechnics : Proccedings of the 18th International conference on Soil Mechanics and Geotechnical Engineering |
Redaktører | Pierre Delage, Jacques Desrues, Roger Frank, Alain Puech, Francois Schlosser |
Antal sider | 4 |
Vol/bind | 1 |
Forlag | Presses des Ponts |
Publikationsdato | 2013 |
Sider | 603-606 |
Kapitel | 102 |
Status | Udgivet - 2013 |
Begivenhed | The International Conference on Soil Mechanics and Geotechnical Engineering: Challenges and innovations in Geotechnics - The Paris International Conference Centre (Palais des Congrès), Paris, Frankrig Varighed: 2 sep. 2013 → 6 sep. 2013 Konferencens nummer: 18 |
Konference
Konference | The International Conference on Soil Mechanics and Geotechnical Engineering |
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Nummer | 18 |
Lokation | The Paris International Conference Centre (Palais des Congrès) |
Land/Område | Frankrig |
By | Paris |
Periode | 02/09/2013 → 06/09/2013 |
Bibliografisk note
Publiceret på en USBEmneord
- Silt
- CPT
- Penetration Rate
- Cone Resistance
- Pore Pressure
- Sleeve Friction
- Drainage
- In Situ Testing