Back analyses on prefabricated vertical drain treated ground using plaxis 2D

By increasing the industrial developments in Malaysia, there are many construction projects has been carried out. With the development of construction project, it can cause reducing the construction area. Many of the construction nowadays need to be constructed on the soft ground due to the limitati...

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主要作者: Harun, Hanisah
格式: Thesis
语言:English
出版: 2017
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在线阅读:http://eprints.utm.my/id/eprint/85844/1/HanisahHarunMFKA2017.pdf
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spelling my-utm-ep.858442020-07-30T07:35:11Z Back analyses on prefabricated vertical drain treated ground using plaxis 2D 2017 Harun, Hanisah TA Engineering (General). Civil engineering (General) By increasing the industrial developments in Malaysia, there are many construction projects has been carried out. With the development of construction project, it can cause reducing the construction area. Many of the construction nowadays need to be constructed on the soft ground due to the limitation area and it gives the problem of soil settlement and the construction cost directly become double. Prefabricated vertical drains PVD is one of the most commonly used techniques to reduce the time of settlement substantially. The purpose of this study is to study the performance of prefabricated vertical drain (PVD) as treated ground method. This paper presents a case study of the field data associated to settlement of treated soft soil using PVD by comparing with numerical simulation for embankment constructed along highway. This study involved two methods which are field settlement recorded and prediction of settlement using Finite Element Method. PLAXIS 2D analysis showed that the preloading is important to reduce the post construction settlement. Result from the case study indicates the settlement predicted from Finite Element Modelling is slightly higher compare to an actual field settlement. Drain spacing was analysed to evaluate the factor affecting the performance of prefabricated vertical drain. The rate of settlement was increase by decreasing of drain spacing. The installation of PVD at spacing 1.0m gives the optimum rate of settlement followed by spacing 1.4 m, 1.8 m and 2.0 m respectively. In terms of excess pore water pressure, the result showed the pore water pressure were significantly higher and dissipated slowly due to increasing of prefabricated vertical drain spacing. Based on the series of simulation conducted, it was found that the prefabricated vertical drain is effective pre-construction countermeasure for increasing ground stability. 2017 Thesis http://eprints.utm.my/id/eprint/85844/ http://eprints.utm.my/id/eprint/85844/1/HanisahHarunMFKA2017.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:132657 masters Universiti Teknologi Malaysia, Faculty of Engineering - School of Civil Engineering Faculty of Engineering - School of Civil Engineering
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
language English
topic TA Engineering (General)
Civil engineering (General)
spellingShingle TA Engineering (General)
Civil engineering (General)
Harun, Hanisah
Back analyses on prefabricated vertical drain treated ground using plaxis 2D
description By increasing the industrial developments in Malaysia, there are many construction projects has been carried out. With the development of construction project, it can cause reducing the construction area. Many of the construction nowadays need to be constructed on the soft ground due to the limitation area and it gives the problem of soil settlement and the construction cost directly become double. Prefabricated vertical drains PVD is one of the most commonly used techniques to reduce the time of settlement substantially. The purpose of this study is to study the performance of prefabricated vertical drain (PVD) as treated ground method. This paper presents a case study of the field data associated to settlement of treated soft soil using PVD by comparing with numerical simulation for embankment constructed along highway. This study involved two methods which are field settlement recorded and prediction of settlement using Finite Element Method. PLAXIS 2D analysis showed that the preloading is important to reduce the post construction settlement. Result from the case study indicates the settlement predicted from Finite Element Modelling is slightly higher compare to an actual field settlement. Drain spacing was analysed to evaluate the factor affecting the performance of prefabricated vertical drain. The rate of settlement was increase by decreasing of drain spacing. The installation of PVD at spacing 1.0m gives the optimum rate of settlement followed by spacing 1.4 m, 1.8 m and 2.0 m respectively. In terms of excess pore water pressure, the result showed the pore water pressure were significantly higher and dissipated slowly due to increasing of prefabricated vertical drain spacing. Based on the series of simulation conducted, it was found that the prefabricated vertical drain is effective pre-construction countermeasure for increasing ground stability.
format Thesis
qualification_level Master's degree
author Harun, Hanisah
author_facet Harun, Hanisah
author_sort Harun, Hanisah
title Back analyses on prefabricated vertical drain treated ground using plaxis 2D
title_short Back analyses on prefabricated vertical drain treated ground using plaxis 2D
title_full Back analyses on prefabricated vertical drain treated ground using plaxis 2D
title_fullStr Back analyses on prefabricated vertical drain treated ground using plaxis 2D
title_full_unstemmed Back analyses on prefabricated vertical drain treated ground using plaxis 2D
title_sort back analyses on prefabricated vertical drain treated ground using plaxis 2d
granting_institution Universiti Teknologi Malaysia, Faculty of Engineering - School of Civil Engineering
granting_department Faculty of Engineering - School of Civil Engineering
publishDate 2017
url http://eprints.utm.my/id/eprint/85844/1/HanisahHarunMFKA2017.pdf
_version_ 1747818462554619904