Full text
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| Author(s): |
Yuri Daniel Jatobá Costa
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Carlos. |
| Institution: | Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) |
| Defense date: | 1999-12-20 |
| Examining board members: |
Jose Carlos Angelo Cintra;
Fernando Schnaid;
Orencio Monje Vilar
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| Advisor: | Jose Carlos Angelo Cintra |
| Abstract | |
This work presents results of plate load tests with measurements of soil moisture content and matric suction, carried out at a 1.5 m depth in an unsaturated collapsible soil, considered as representative of the middle-west region of the state of São Paulo, Brazil. The tests were performed with and without the wetting of the pit. Three test methods were used: slow maintained load (SML), quick maintained load (QML), and mixed tests (SML up to a certain stage, switched to QML from there on). Soil moisture content and suction were measured through gravimetric determination on samples, the time domain reflectometry technique (TDR), and tensiometers. The gathered data allowed an assessment of the influence of the soil suction over the soil-plate system response. It was observed that the increase in suction causes a substantial increase in soil bearing capacity. Comparisons between wet and non-wet tests showed that soil collapse is higher when suction rises. The time domain reflectometry technique showed a promising performance with respect to in situ water content measurements. (AU) | |
| FAPESP's process: | 98/05461-4 - Study of the behavior of an unsaturated soil through plate load tests |
| Grantee: | Yuri Daniel Jatoba Costa |
| Support Opportunities: | Scholarships in Brazil - Master |