Applied Deep Soil Mixing Method in Saigon Offshore Fabrication and Engineering Project, Ba Ria - Vung Tau Province, Vietnam
The research area, Saigon Offshore Fabrication and Engineering Project (SOFE), is a ship building and services project. It is located on the riverside of Dinh River and nearby the coastal area. The area is deposited by Quaternary river � marine sediments, formed a loose ground. In this area, there...
| Main Authors: | , |
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| Format: | Thesis |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2012
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| Subjects: |
| _version_ | 1797032758947610624 |
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| author | , NGUYEN VAN GIAP , Dr. Wahyu Wilopo |
| author_facet | , NGUYEN VAN GIAP , Dr. Wahyu Wilopo |
| author_sort | , NGUYEN VAN GIAP |
| collection | UGM |
| description | The research area, Saigon Offshore Fabrication and Engineering Project (SOFE), is a
ship building and services project. It is located on the riverside of Dinh River and
nearby the coastal area. The area is deposited by Quaternary river � marine
sediments, formed a loose ground. In this area, there is a soft clay layer with high
void ratio, high moisture content, average thickness of 10 m. Due to the loading 30
kPa on the yard and 150 kPa on the skid way of the project, settlement is a big
problem.
Following One Dimensional Consolidation Theory, settlement of unimproved ground
is predicted. To control settlement of the research area, Deep Soil Mixing (DSM)
column is designed. In this method, Unconfined Compression Strength (UCS) of
column and influence of water to cement ratio and cement dosage are needed to be
analyzed to point out cement proportion. Based on the design, settlement of improved
ground is predicted following theory of DSM method. After that, the displacement of
the research area is analyzed by finite element method using Plaxis software in order
to carry out effect of DSM method on controlling settlement.
In case of unimproved ground, settlement of the research area is 1.09 m when loading
30 kPa and 1.79 m when loading 150 kPa. To design DSM column to solve this
settlement problem, soil cement sample is analyzed. As a result, UCS of column
increases when cement dosage increases from 200 to 275 kg/m3, and optimal water to
cement ratio is defined as 0.8. DSM column is designed as 2.05 MPa in strength,
derived from cement dosage of 250 kg/m3 and water to cement ratio of 0.8. With that
strength, the column is designed as 0.6m and 0.8 m in diameter for the yard and the
skid way, 10 m in length and 1.2 m in spacing. With DSM column designed above,
settlement of improved ground is predicted manually as 0.03 m for the yard and 0.14
m for the skid way. The simulation shows higher result, 0.08 m for the yard and 0.21
m for the skid way. During applying load and in long term, the research area is stable.
The result of simulation shows that safety factor is 1.6 to 1.7 when applying load and
2.1 in long term. |
| first_indexed | 2024-03-13T22:43:32Z |
| format | Thesis |
| id | oai:generic.eprints.org:100682 |
| institution | Universiti Gadjah Mada |
| last_indexed | 2024-03-13T22:43:32Z |
| publishDate | 2012 |
| publisher | [Yogyakarta] : Universitas Gadjah Mada |
| record_format | dspace |
| spelling | oai:generic.eprints.org:1006822016-03-04T08:47:56Z https://repository.ugm.ac.id/100682/ Applied Deep Soil Mixing Method in Saigon Offshore Fabrication and Engineering Project, Ba Ria - Vung Tau Province, Vietnam , NGUYEN VAN GIAP , Dr. Wahyu Wilopo ETD The research area, Saigon Offshore Fabrication and Engineering Project (SOFE), is a ship building and services project. It is located on the riverside of Dinh River and nearby the coastal area. The area is deposited by Quaternary river � marine sediments, formed a loose ground. In this area, there is a soft clay layer with high void ratio, high moisture content, average thickness of 10 m. Due to the loading 30 kPa on the yard and 150 kPa on the skid way of the project, settlement is a big problem. Following One Dimensional Consolidation Theory, settlement of unimproved ground is predicted. To control settlement of the research area, Deep Soil Mixing (DSM) column is designed. In this method, Unconfined Compression Strength (UCS) of column and influence of water to cement ratio and cement dosage are needed to be analyzed to point out cement proportion. Based on the design, settlement of improved ground is predicted following theory of DSM method. After that, the displacement of the research area is analyzed by finite element method using Plaxis software in order to carry out effect of DSM method on controlling settlement. In case of unimproved ground, settlement of the research area is 1.09 m when loading 30 kPa and 1.79 m when loading 150 kPa. To design DSM column to solve this settlement problem, soil cement sample is analyzed. As a result, UCS of column increases when cement dosage increases from 200 to 275 kg/m3, and optimal water to cement ratio is defined as 0.8. DSM column is designed as 2.05 MPa in strength, derived from cement dosage of 250 kg/m3 and water to cement ratio of 0.8. With that strength, the column is designed as 0.6m and 0.8 m in diameter for the yard and the skid way, 10 m in length and 1.2 m in spacing. With DSM column designed above, settlement of improved ground is predicted manually as 0.03 m for the yard and 0.14 m for the skid way. The simulation shows higher result, 0.08 m for the yard and 0.21 m for the skid way. During applying load and in long term, the research area is stable. The result of simulation shows that safety factor is 1.6 to 1.7 when applying load and 2.1 in long term. [Yogyakarta] : Universitas Gadjah Mada 2012 Thesis NonPeerReviewed , NGUYEN VAN GIAP and , Dr. Wahyu Wilopo (2012) Applied Deep Soil Mixing Method in Saigon Offshore Fabrication and Engineering Project, Ba Ria - Vung Tau Province, Vietnam. UNSPECIFIED thesis, UNSPECIFIED. http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=57345 |
| spellingShingle | ETD , NGUYEN VAN GIAP , Dr. Wahyu Wilopo Applied Deep Soil Mixing Method in Saigon Offshore Fabrication and Engineering Project, Ba Ria - Vung Tau Province, Vietnam |
| title | Applied Deep Soil Mixing Method in Saigon Offshore Fabrication and Engineering Project, Ba Ria - Vung Tau Province, Vietnam |
| title_full | Applied Deep Soil Mixing Method in Saigon Offshore Fabrication and Engineering Project, Ba Ria - Vung Tau Province, Vietnam |
| title_fullStr | Applied Deep Soil Mixing Method in Saigon Offshore Fabrication and Engineering Project, Ba Ria - Vung Tau Province, Vietnam |
| title_full_unstemmed | Applied Deep Soil Mixing Method in Saigon Offshore Fabrication and Engineering Project, Ba Ria - Vung Tau Province, Vietnam |
| title_short | Applied Deep Soil Mixing Method in Saigon Offshore Fabrication and Engineering Project, Ba Ria - Vung Tau Province, Vietnam |
| title_sort | applied deep soil mixing method in saigon offshore fabrication and engineering project ba ria vung tau province vietnam |
| topic | ETD |
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