Experimental Studies of Suction-Monitored Direct Shear Apparatus on Perth Poorly Graded Sand
Perth, Western Australia is a semi arid climate area. A soil characteristic at a near surface layer is relatively dry due to the deep water table, low humidity and high rate of evaporation. Subsurface exploration carried out in this study indicated that most soils in Perth are classified as poorly g...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Conference Paper |
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Australian Geomechanics Society
2011
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/13294 |
| _version_ | 1848748308959330304 |
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| author | Purwana, Y. Jitsangiam, Peerapong Nikraz, Hamid Jotisankasa, A. |
| author2 | Mohamed A Shahin |
| author_facet | Mohamed A Shahin Purwana, Y. Jitsangiam, Peerapong Nikraz, Hamid Jotisankasa, A. |
| author_sort | Purwana, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Perth, Western Australia is a semi arid climate area. A soil characteristic at a near surface layer is relatively dry due to the deep water table, low humidity and high rate of evaporation. Subsurface exploration carried out in this study indicated that most soils in Perth are classified as poorly graded sand and remain dry along the year. Therefore, most Perth soils are considered to be in an unsaturated condition. The aim of this study is to evaluate the unsaturated Perth soil properties. Conventional and modified direct shear apparatuses were utilized in the shear strength evaluation of the saturated and unsaturated Perth soils. Modification of the direct shear apparatus was conducted by attaching a low capacity tensiometer to the direct shear top cap to measure the matric suction of the soil samples. The results indicate that during shear, suction is relatively low for a range of saturation degree of 50 to 100% and well within the tensiometer capacity, indicating that the modified direct shear apparatus is suitable for measuring the unsaturated poorly graded Perth sand. |
| first_indexed | 2025-11-14T07:02:59Z |
| format | Conference Paper |
| id | curtin-20.500.11937-13294 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:02:59Z |
| publishDate | 2011 |
| publisher | Australian Geomechanics Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-132942023-01-27T05:26:30Z Experimental Studies of Suction-Monitored Direct Shear Apparatus on Perth Poorly Graded Sand Purwana, Y. Jitsangiam, Peerapong Nikraz, Hamid Jotisankasa, A. Mohamed A Shahin Hamid R Nikraz tensiometer unsaturated soil direct shear soil suction Perth, Western Australia is a semi arid climate area. A soil characteristic at a near surface layer is relatively dry due to the deep water table, low humidity and high rate of evaporation. Subsurface exploration carried out in this study indicated that most soils in Perth are classified as poorly graded sand and remain dry along the year. Therefore, most Perth soils are considered to be in an unsaturated condition. The aim of this study is to evaluate the unsaturated Perth soil properties. Conventional and modified direct shear apparatuses were utilized in the shear strength evaluation of the saturated and unsaturated Perth soils. Modification of the direct shear apparatus was conducted by attaching a low capacity tensiometer to the direct shear top cap to measure the matric suction of the soil samples. The results indicate that during shear, suction is relatively low for a range of saturation degree of 50 to 100% and well within the tensiometer capacity, indicating that the modified direct shear apparatus is suitable for measuring the unsaturated poorly graded Perth sand. 2011 Conference Paper http://hdl.handle.net/20.500.11937/13294 Australian Geomechanics Society fulltext |
| spellingShingle | tensiometer unsaturated soil direct shear soil suction Purwana, Y. Jitsangiam, Peerapong Nikraz, Hamid Jotisankasa, A. Experimental Studies of Suction-Monitored Direct Shear Apparatus on Perth Poorly Graded Sand |
| title | Experimental Studies of Suction-Monitored Direct Shear Apparatus on Perth Poorly Graded Sand |
| title_full | Experimental Studies of Suction-Monitored Direct Shear Apparatus on Perth Poorly Graded Sand |
| title_fullStr | Experimental Studies of Suction-Monitored Direct Shear Apparatus on Perth Poorly Graded Sand |
| title_full_unstemmed | Experimental Studies of Suction-Monitored Direct Shear Apparatus on Perth Poorly Graded Sand |
| title_short | Experimental Studies of Suction-Monitored Direct Shear Apparatus on Perth Poorly Graded Sand |
| title_sort | experimental studies of suction-monitored direct shear apparatus on perth poorly graded sand |
| topic | tensiometer unsaturated soil direct shear soil suction |
| url | http://hdl.handle.net/20.500.11937/13294 |