Consolidation of unsaturated soils with pore-water pressure measurement
The specimens were then tested under a series of constant rate of strain consolidation (CRS) tests and incremental loading consolidation (IL) tests. The test results obtained were compared to study the effects of strain rate in CRS test for specimens at different matric suction. The test results...
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sg-ntu-dr.10356-600022023-03-03T17:26:22Z Consolidation of unsaturated soils with pore-water pressure measurement Yap, Kenneth Chern Lim Leong Eng Choon School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Geotechnical The specimens were then tested under a series of constant rate of strain consolidation (CRS) tests and incremental loading consolidation (IL) tests. The test results obtained were compared to study the effects of strain rate in CRS test for specimens at different matric suction. The test results were analyzed through studying the compression curve and pore-water pressure response of the soil specimens. Pore-water pressures for unsaturated soil specimens were measured using a high capacity tensiometer. Apparent pre-consolidation pressure, compression index and recompression index were also determined and compared for soil specimens at different initial matric suctions. Experimental results showed that the compression curve obtained through IL tests and CRS tests agree well along the virgin compression line. Pore-water pressure response of the soil specimens also affected the strain rate that could be used for CRS test. Kaolin specimens showed consistent pore-water pressure response while residual soils specimens showed pore-water pressure response with slight fluctuation. However, there was a lagged response for soil specimens tested using 0.1 mm/min strain rate. This suggested that a fast strain rate was not suitable for kaolin and residual soils, despite a good agreement shown from the compression curves. Bachelor of Engineering (Civil) 2014-05-22T00:59:58Z 2014-05-22T00:59:58Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/60002 en Nanyang Technological University 85 p. application/pdf |
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DRNTU::Engineering::Civil engineering::Geotechnical Yap, Kenneth Chern Lim Consolidation of unsaturated soils with pore-water pressure measurement |
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The specimens were then tested under a series of constant rate of strain consolidation (CRS) tests and incremental loading consolidation (IL) tests. The test results obtained were compared to study the effects of strain rate in CRS test for specimens at different matric suction.
The test results were analyzed through studying the compression curve and pore-water pressure response of the soil specimens. Pore-water pressures for unsaturated soil specimens were measured using a high capacity tensiometer. Apparent pre-consolidation pressure, compression index and recompression index were also determined and compared for soil specimens at different initial matric suctions. Experimental results showed that the compression curve obtained through IL tests and CRS tests agree well along the virgin compression line. Pore-water pressure response of the soil specimens also affected the strain rate that could be used for CRS test. Kaolin specimens showed consistent pore-water pressure response while residual soils specimens showed pore-water pressure response with slight fluctuation. However, there was a lagged response for soil specimens tested using 0.1 mm/min strain rate. This suggested that a fast strain rate was not suitable for kaolin and residual soils, despite a good agreement shown from the compression curves. |
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Leong Eng Choon |
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Leong Eng Choon Yap, Kenneth Chern Lim |
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Final Year Project |
author |
Yap, Kenneth Chern Lim |
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Yap, Kenneth Chern Lim |
title |
Consolidation of unsaturated soils with pore-water pressure measurement |
title_short |
Consolidation of unsaturated soils with pore-water pressure measurement |
title_full |
Consolidation of unsaturated soils with pore-water pressure measurement |
title_fullStr |
Consolidation of unsaturated soils with pore-water pressure measurement |
title_full_unstemmed |
Consolidation of unsaturated soils with pore-water pressure measurement |
title_sort |
consolidation of unsaturated soils with pore-water pressure measurement |
publishDate |
2014 |
url |
http://hdl.handle.net/10356/60002 |
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1759854926444363776 |