Performance of Composite and Monolithic Prefabricated Vertical Drains

With the increasing use of prefabricated vertical drains in the improvement of soft clay there are many types of these drains, both composite (with geotextile wrapping) and monolithic (without geotextile wrapping), available in Malaysia. Some engineers have the impression that all drains perform s...

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Main Authors: Ali, Faisal, Kim Huat, Bujang
Format: Article
Language:English
English
Published: 1992
Online Access:http://psasir.upm.edu.my/id/eprint/3033/1/Performance_of_Composite_and_Monolithic_Prefabricated_Vertical_Drains.pdf
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author Ali, Faisal
Kim Huat, Bujang
author_facet Ali, Faisal
Kim Huat, Bujang
author_sort Ali, Faisal
collection UPM
description With the increasing use of prefabricated vertical drains in the improvement of soft clay there are many types of these drains, both composite (with geotextile wrapping) and monolithic (without geotextile wrapping), available in Malaysia. Some engineers have the impression that all drains perform satisfactorily. However, case studies have shown that there are cases where vertical drains failed to function. Therefore, there is a need to identify the drains which are not suitable or do not perform satisfactorily. This paper describes the various tests that have been carried out on two types of drain (i.e. one composite and one monolithic) to study their performance under lateral pressure. Test results show the importance of having a filter sleeve around the drain core. They also indicate that the type of geotextile wrapping affects the performance of the drain. A relatively stiff woven geotextile seems to be the most favour able
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spelling upm.eprints-30332013-05-27T07:05:15Z http://psasir.upm.edu.my/id/eprint/3033/ Performance of Composite and Monolithic Prefabricated Vertical Drains Ali, Faisal Kim Huat, Bujang With the increasing use of prefabricated vertical drains in the improvement of soft clay there are many types of these drains, both composite (with geotextile wrapping) and monolithic (without geotextile wrapping), available in Malaysia. Some engineers have the impression that all drains perform satisfactorily. However, case studies have shown that there are cases where vertical drains failed to function. Therefore, there is a need to identify the drains which are not suitable or do not perform satisfactorily. This paper describes the various tests that have been carried out on two types of drain (i.e. one composite and one monolithic) to study their performance under lateral pressure. Test results show the importance of having a filter sleeve around the drain core. They also indicate that the type of geotextile wrapping affects the performance of the drain. A relatively stiff woven geotextile seems to be the most favour able 1992 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/3033/1/Performance_of_Composite_and_Monolithic_Prefabricated_Vertical_Drains.pdf Ali, Faisal and Kim Huat, Bujang (1992) Performance of Composite and Monolithic Prefabricated Vertical Drains. Pertanika, 15 (3). pp. 255-264. English
spellingShingle Ali, Faisal
Kim Huat, Bujang
Performance of Composite and Monolithic Prefabricated Vertical Drains
title Performance of Composite and Monolithic Prefabricated Vertical Drains
title_full Performance of Composite and Monolithic Prefabricated Vertical Drains
title_fullStr Performance of Composite and Monolithic Prefabricated Vertical Drains
title_full_unstemmed Performance of Composite and Monolithic Prefabricated Vertical Drains
title_short Performance of Composite and Monolithic Prefabricated Vertical Drains
title_sort performance of composite and monolithic prefabricated vertical drains
url http://psasir.upm.edu.my/id/eprint/3033/1/Performance_of_Composite_and_Monolithic_Prefabricated_Vertical_Drains.pdf
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