Performance of ground improvement by precompression and vertical drain

Performance of ground improvement by precompression and vertical drain

Ground improvement is required when construction has to take place on geotechnically unsuitable material such as soft clay. This paper discusses the performance of ground improvement by pre-compression and vertical drain implemented for the construction of permanent campus of Universiti Malaysia Pah...

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Main Author: Mohamed, Rosdi
Format: Thesis
Language:English
Published: 2008
Subjects:
TA Engineering (General)
Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/9860/1/RosdiMohamedMFKM2008.pdf
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id my-utm-ep.9860
record_format uketd_dc
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
language English
topic TA Engineering (General)
Civil engineering (General)
spellingShingle TA Engineering (General)
Civil engineering (General)
Mohamed, Rosdi
Performance of ground improvement by precompression and vertical drain
description Ground improvement is required when construction has to take place on geotechnically unsuitable material such as soft clay. This paper discusses the performance of ground improvement by pre-compression and vertical drain implemented for the construction of permanent campus of Universiti Malaysia Pahang (UMP) in Kuala Pahang, Pekan. The comparison was made in terms of engineering properties of the soil such as shear strength and compressibility characteristics before and after improvement and the achievement of criteria in terms of time and post construction settlement. The soil investigation showed that subsoil profile consisted of four layers whereby the thickness of compressible layer varies from 6 to 14 m. Settlement monitoring showed that the required pre-construction settlement was achieved in less than six months after the completion of ground improvement by pre-compression. Installation of the vertical drains in swampy area further reduced the consolidation time to about one month. The undrained shear strength (Su) of the soft compressible layer increased from 6 - 30 kPa to about 67 kPa while the compression index (Cc) decreased from about 0.2 - 0.6 to about 0.33. The coefficient of consolidation (Cv) of the soft soil layer decreases from 6m2/yr - 21m2/yr to about 2.11m2/yr - 3.64m2/yr due to compaction and consolidation process.
format Thesis
qualification_level Master's degree
author Mohamed, Rosdi
author_facet Mohamed, Rosdi
author_sort Mohamed, Rosdi
title Performance of ground improvement by precompression and vertical drain
title_short Performance of ground improvement by precompression and vertical drain
title_full Performance of ground improvement by precompression and vertical drain
title_fullStr Performance of ground improvement by precompression and vertical drain
title_full_unstemmed Performance of ground improvement by precompression and vertical drain
title_sort performance of ground improvement by precompression and vertical drain
granting_institution Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department Faculty of Civil Engineering
publishDate 2008
url http://eprints.utm.my/id/eprint/9860/1/RosdiMohamedMFKM2008.pdf
_version_ 1747814782060199936
spelling my-utm-ep.98602018-07-23T05:36:53Z Performance of ground improvement by precompression and vertical drain 2008-05 Mohamed, Rosdi TA Engineering (General). Civil engineering (General) Ground improvement is required when construction has to take place on geotechnically unsuitable material such as soft clay. This paper discusses the performance of ground improvement by pre-compression and vertical drain implemented for the construction of permanent campus of Universiti Malaysia Pahang (UMP) in Kuala Pahang, Pekan. The comparison was made in terms of engineering properties of the soil such as shear strength and compressibility characteristics before and after improvement and the achievement of criteria in terms of time and post construction settlement. The soil investigation showed that subsoil profile consisted of four layers whereby the thickness of compressible layer varies from 6 to 14 m. Settlement monitoring showed that the required pre-construction settlement was achieved in less than six months after the completion of ground improvement by pre-compression. Installation of the vertical drains in swampy area further reduced the consolidation time to about one month. The undrained shear strength (Su) of the soft compressible layer increased from 6 - 30 kPa to about 67 kPa while the compression index (Cc) decreased from about 0.2 - 0.6 to about 0.33. The coefficient of consolidation (Cv) of the soft soil layer decreases from 6m2/yr - 21m2/yr to about 2.11m2/yr - 3.64m2/yr due to compaction and consolidation process. 2008-05 Thesis http://eprints.utm.my/id/eprint/9860/ http://eprints.utm.my/id/eprint/9860/1/RosdiMohamedMFKM2008.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering Asaoka, A (1978). Observational Procedure of Settlement Prediction. Soils and Foundation. 18 (4): 87-101. Bumimetro Engineering Corporation Sdn Bhd. (2002). Factual Report on Soil Investigation Works for Cadangan Merekabentuk, Membina dan Menyiapkan Kolej Universiti Kejuruteraan & Teknologi Malaysia (KUKTEM) di Pekan, Pahang Darul Makmur. Dynamic Pile Testing Sdn Bhd. (2004). Instrumentation Monitoring (Embankment A7 & C2 for Cadangan Merekabentuk dan Membina Sebuah Kolej Universiti Kejuruteraan & Teknologi Malaysia (KUKTEM) Pekan, Pahang Darul Makmur. Goughnour, R. R. (1997) Lateral Drainage for Vertical Drain Systems. Ground Improvement Ground Reinforcement Ground Treatment Development 1987-1997 ASCE. Green Effect Sdn Bhd. (2002). Geotechnical Assessment Report for the Proposed Design and Build for Kolej Universiti Kejuruteraan dan Teknologi Malaysia (KUKTEM) Pekan, Pahang. Green Effect Sdn Bhd. (2003). Method Statement for Cadangan Kerja-kerja Tanah untuk Cadangan Merekabentuk, Membina, Melengkap, Menyiapkan dan Mentauliah Kerja-keja Tanah Fasa 1 untuk Pembangunan Kampus Tetap for Kolej Universiti Kejuruteraan & Teknologi Malaysia (KUKTEM) di Mukim Kuala Pahang, Daerah Pekan, Pahang Darul Makmur. Green Effect Sdn Bhd. (2004). Preliminary Settlement Review on Observation Embankments for the proposed design and build for Kolej Universiti Kejuruteraan dan Teknologi Malaysia (KUKTEM) Pekan, Pahang. April. Handalan Enterprise Sdn Bhd. (2002). Report on Soil Investigation and Laboratory Testing for Cadangan Merekabentuk dan Membina Sebuah Kolej Universiti Kejuruteraan & Teknologi Malaysia (KUKTEM), Pekan, Pahang Darul Makmur. Hausmann, M. R. (1990). Engineering Principles of Ground Modification, McGraw- Hill. Liu, C. and Evett, J. C. (2005). Soils and Foundations, Pearson/Prentice Hall. Nurly Gofar and Khairul Anuar Kassim. (2005). Introduction to Geotechnical Engineering Part 1, Pearson/Prentice Hall. Onoue, A. (1995). Precompression using Vertical Drains. Soil Mechanics and Foundation Engineering. Progress Drilling Sdn Bhd. (2007). Soil Investigation Report for Cadangan Pembangunan Kampus Tetap Fasa 1B Universiti Malaysia Pahang di Mukim Kuala Pahang, Daerah Pekan, Pahang Darul Makmur. Schaefer, V. R., Abraham, L. W., Drumheller, J. C., Husin, J. D., and Sharp, K. D. (1997). Prefabricated Vertical (Wick) Drains. Ground Improvement Ground Reinforcement Ground Treatment Development 1987-1997 ASCE

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