Effect of pore-size distribution on saturated shear strength of residual soil
Residual soils are formed from weathered rocks and are usually under unsaturated conditions. Pore-size distribution controls the engineering properties of the soil and it is an important aspect in Geotechnical Engineering. Laboratory experiments to investigate how pore-size distribution (PSD) affect...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Final Year Project |
| Language: | English |
| Published: |
2009
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/15893 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Residual soils are formed from weathered rocks and are usually under unsaturated conditions. Pore-size distribution controls the engineering properties of the soil and it is an important aspect in Geotechnical Engineering. Laboratory experiments to investigate how pore-size distribution (PSD) affects saturated shear strength of residual soils were conducted. Tempe cell, triaxial, pressure plate and salt solution tests are carried out to obtain the soil-water characteristic curve (SWCC) of granitic Bukit Timah formation in Singapore. Index property and consolidated undrained triaxial tests on saturated samples are also performed.
The results show that a larger pore-size distribution indicates a lower degree of weathering and this condition leads to stronger cementation of the soil particles. Therefore, cohesion (which contributes to the overall shear strength) is higher for residual soils with a larger pore-size distribution. |
|---|