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Criteria of acceptance for constant rate of strain consolidation test for cohesive soil

Constant rate of strain (CRS) consolidation test is a new method of consolidation testing in Malaysia. Although it had been widely used as an alternative for standard consolidation test in other countries such as Sweden and the USA, there is still no standard equipment for it. The selection of the s...

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Main Author: Lam, Chee Siang
Format: Thesis
Language:English
Published: 2006
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/5313/1/LamCheeSiangMFKA2006.pdf
http://eprints.utm.my/id/eprint/5313/
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spelling my.utm.53132018-10-14T07:19:38Z http://eprints.utm.my/id/eprint/5313/ Criteria of acceptance for constant rate of strain consolidation test for cohesive soil Lam, Chee Siang TA Engineering (General). Civil engineering (General) Constant rate of strain (CRS) consolidation test is a new method of consolidation testing in Malaysia. Although it had been widely used as an alternative for standard consolidation test in other countries such as Sweden and the USA, there is still no standard equipment for it. The selection of the suitable strain rate for the CRS test is still a major hurdle for the geotechnical engineers. The CRS consolidation test has some advantages over the standard consolidation test where the time needed for the test is reduced from two weeks to few hours and the ability to apply high effective pressure at larger sample size. Various guidelines and criteria of acceptance for the CRS consolidation test had been introduced by many researchers. The aim of this research is to establish new criteria of acceptance for the CRS consolidation test. A new developed CRS equipment has been designed and named Rapid Consolidation Equipment (RACE). The equipment was developed using the concept of continuous consolidation test procedure. The criteria of acceptance for the CRS test were based on the normalized strain rate, ß introduced by Lee (1981) and the ratio of excess pore pressure to applied pressure, (ua/ sv ). It was also established that the maximum ß to achieve acceptable data is 0.1. The research showed that the minimum value for the ß and ua/ sv are 0.005 and 0.01 respectively. Another criterion of acceptance for the CRS test which takes into account the clay fraction (CF) effects was also introduced. The clay fraction is used to modify the normalized strain rate ß, into ß/CF. Results show that for soil with clay fraction more than 50%, the maximum ß / CF is 0.001. The maximum ß / CF for soil with CF lower than 50% is 0.008. 2006-07 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/5313/1/LamCheeSiangMFKA2006.pdf Lam, Chee Siang (2006) Criteria of acceptance for constant rate of strain consolidation test for cohesive soil. Masters thesis, Universiti Teknologi Malaysia, Faculty of Civil Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:61824
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Lam, Chee Siang
Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
description Constant rate of strain (CRS) consolidation test is a new method of consolidation testing in Malaysia. Although it had been widely used as an alternative for standard consolidation test in other countries such as Sweden and the USA, there is still no standard equipment for it. The selection of the suitable strain rate for the CRS test is still a major hurdle for the geotechnical engineers. The CRS consolidation test has some advantages over the standard consolidation test where the time needed for the test is reduced from two weeks to few hours and the ability to apply high effective pressure at larger sample size. Various guidelines and criteria of acceptance for the CRS consolidation test had been introduced by many researchers. The aim of this research is to establish new criteria of acceptance for the CRS consolidation test. A new developed CRS equipment has been designed and named Rapid Consolidation Equipment (RACE). The equipment was developed using the concept of continuous consolidation test procedure. The criteria of acceptance for the CRS test were based on the normalized strain rate, ß introduced by Lee (1981) and the ratio of excess pore pressure to applied pressure, (ua/ sv ). It was also established that the maximum ß to achieve acceptable data is 0.1. The research showed that the minimum value for the ß and ua/ sv are 0.005 and 0.01 respectively. Another criterion of acceptance for the CRS test which takes into account the clay fraction (CF) effects was also introduced. The clay fraction is used to modify the normalized strain rate ß, into ß/CF. Results show that for soil with clay fraction more than 50%, the maximum ß / CF is 0.001. The maximum ß / CF for soil with CF lower than 50% is 0.008.
format Thesis
author Lam, Chee Siang
author_facet Lam, Chee Siang
author_sort Lam, Chee Siang
title Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
title_short Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
title_full Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
title_fullStr Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
title_full_unstemmed Criteria of acceptance for constant rate of strain consolidation test for cohesive soil
title_sort criteria of acceptance for constant rate of strain consolidation test for cohesive soil
publishDate 2006
url http://eprints.utm.my/id/eprint/5313/1/LamCheeSiangMFKA2006.pdf
http://eprints.utm.my/id/eprint/5313/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:61824
_version_ 1643644289525219328
score 13.211869

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