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Effect of strain rate on vane shear test

Investigations on the manipulation of strain rate on saturated clay in vane shear test have been carried out over past 60 years. However, the undrained shear strength of vane shear test on cohesive soil considering the change in excess pore pressure under different strain rate remains unknown. Also...

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Main Author: Ling, John Heng Teck.
Format: Final Year Project Report
Language:English
English
Published: Universiti Malaysia Sarawak (UNIMAS) 2017
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://ir.unimas.my/id/eprint/25645/1/Effect%20of%20strain%20rate%20on%20vane%2024pgs.pdf
http://ir.unimas.my/id/eprint/25645/4/John%20Ling%20ft.pdf
http://ir.unimas.my/id/eprint/25645/
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spelling my.unimas.ir.256452024-02-09T02:10:41Z http://ir.unimas.my/id/eprint/25645/ Effect of strain rate on vane shear test Ling, John Heng Teck. TA Engineering (General). Civil engineering (General) Investigations on the manipulation of strain rate on saturated clay in vane shear test have been carried out over past 60 years. However, the undrained shear strength of vane shear test on cohesive soil considering the change in excess pore pressure under different strain rate remains unknown. Also, the variation of strain rate of vane shear test depending on the standards considering the pore water measurement is still questionable. Set of procedure was developed to carry out vane shear test with pore pressure measurement to investigate the effect of strain rates of vane on saturated soil to the undrained shear strength of soil and excess pore pressure at different depth. The soil sample is classified as SILT of very high plasticity (MV) based on British Soil Classification System (BSCS) and elastic silt (MH) according to Unified Soil Classification System (USCS). The vane shear test was carried out at the depth of 600mm, 750mm and 900mm, while the strain rate varies from 6, 9, 12, 15, 18, 21 to 24 °/min. From the results, the undrained shear strength from same depth is similar and increases with soil depth. Excess pore pressure is dissipated rapidly at the beginning of the vane insertion, and continued for 6 hours for 600mm soil depth and 3 hours for 750mm and 900mm depth to reach peak value before dropped and stabilized. Excess pore pressure due to insertion and rotation decreases with increasing strain rate. Most difference between the excess pore pressure due to the vane insertion and rotation and excess pore pressure due to the vane insertion at different strain rate is relatively small. The undrained shear strength of the soil increases with the degree of rotation until the peak value before remains constant, meanwhile excess pore pressure rises constantly with time, from 0 to 180°. Universiti Malaysia Sarawak (UNIMAS) 2017 Final Year Project Report NonPeerReviewed text en http://ir.unimas.my/id/eprint/25645/1/Effect%20of%20strain%20rate%20on%20vane%2024pgs.pdf text en http://ir.unimas.my/id/eprint/25645/4/John%20Ling%20ft.pdf Ling, John Heng Teck. (2017) Effect of strain rate on vane shear test. [Final Year Project Report] (Unpublished)
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Ling, John Heng Teck.
Effect of strain rate on vane shear test
description Investigations on the manipulation of strain rate on saturated clay in vane shear test have been carried out over past 60 years. However, the undrained shear strength of vane shear test on cohesive soil considering the change in excess pore pressure under different strain rate remains unknown. Also, the variation of strain rate of vane shear test depending on the standards considering the pore water measurement is still questionable. Set of procedure was developed to carry out vane shear test with pore pressure measurement to investigate the effect of strain rates of vane on saturated soil to the undrained shear strength of soil and excess pore pressure at different depth. The soil sample is classified as SILT of very high plasticity (MV) based on British Soil Classification System (BSCS) and elastic silt (MH) according to Unified Soil Classification System (USCS). The vane shear test was carried out at the depth of 600mm, 750mm and 900mm, while the strain rate varies from 6, 9, 12, 15, 18, 21 to 24 °/min. From the results, the undrained shear strength from same depth is similar and increases with soil depth. Excess pore pressure is dissipated rapidly at the beginning of the vane insertion, and continued for 6 hours for 600mm soil depth and 3 hours for 750mm and 900mm depth to reach peak value before dropped and stabilized. Excess pore pressure due to insertion and rotation decreases with increasing strain rate. Most difference between the excess pore pressure due to the vane insertion and rotation and excess pore pressure due to the vane insertion at different strain rate is relatively small. The undrained shear strength of the soil increases with the degree of rotation until the peak value before remains constant, meanwhile excess pore pressure rises constantly with time, from 0 to 180°.
format Final Year Project Report
author Ling, John Heng Teck.
author_facet Ling, John Heng Teck.
author_sort Ling, John Heng Teck.
title Effect of strain rate on vane shear test
title_short Effect of strain rate on vane shear test
title_full Effect of strain rate on vane shear test
title_fullStr Effect of strain rate on vane shear test
title_full_unstemmed Effect of strain rate on vane shear test
title_sort effect of strain rate on vane shear test
publisher Universiti Malaysia Sarawak (UNIMAS)
publishDate 2017
url http://ir.unimas.my/id/eprint/25645/1/Effect%20of%20strain%20rate%20on%20vane%2024pgs.pdf
http://ir.unimas.my/id/eprint/25645/4/John%20Ling%20ft.pdf
http://ir.unimas.my/id/eprint/25645/
_version_ 1792160636209201152
score 13.244745

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