Abstract
New high capacity tensiometers have been developed at the University of Newcastle, Australia, for the direct measurement of soil matric suction. Consistent with other high capacity tensiometers found in literature, the design was based on a high air entry ceramic, water reservoir and pressure transducer. Different geometries (size of water reservoir), materials (stainless steel and perspex) and pressure transducers were considered when designing the tensiometers in order to investigate the significance of each parameter. The performance of the different configurations for the new high capacity tensiometers were assessed and discussed in terms of minimum pressure range and response time. The results show that all tensiometers read comparable values of suction, regardless of their inherent specificities. In particular, for all design types, the maximum suction was measured to be equal or greater than the nominal air entry value of the ceramic. This suggests that the measuring range does not depend on the size of the water reservoir.
Original language | English |
---|---|
Title of host publication | Unsaturated Soils |
Subtitle of host publication | Research and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014 |
Editors | Nasser Khalili, Adrian Russell, Arman Khoshghalb |
Publisher | Taylor & Francis |
Pages | 1611-1616 |
Number of pages | 6 |
Volume | 2 |
ISBN (Print) | 9781138001503 |
Publication status | Published - 5 Jun 2014 |
Externally published | Yes |
Event | 6th International Conference on Unsaturated Soils, UNSAT 2014 - Sydney, NSW, Australia Duration: 2 Jul 2014 → 4 Jul 2014 |
Conference
Conference | 6th International Conference on Unsaturated Soils, UNSAT 2014 |
---|---|
Country/Territory | Australia |
City | Sydney, NSW |
Period | 2/07/14 → 4/07/14 |