Digital Geotechnical Maps and Classification of Soil Engineering Properties by Using GIS

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Author(s)
Primary Supervisor
Oh, Erwin
Other Supervisors
Chai, Gary
Year published
2015
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Peat is a highly organic and extremely compressible soil. The Surfers Paradise study site area (Gold Coast, Queensland, Australia, located between 27.98° and 28.01° Southing, and between 153.41° and 153.43° Easting (based on the projection of Universal Transverse Mercator UTM zone 56) has a problematic multi thickness peat layer. The peat layer ranges from 0.1 – 7.0 m at different locations and at depths between 1.1 – 40.9 m below the ground surface. To avoid the effects of the highly compressible and low shear strength peat layer, the buildings in the study area have pile foundations. The site, which lies on the beach side, ...
View more >Peat is a highly organic and extremely compressible soil. The Surfers Paradise study site area (Gold Coast, Queensland, Australia, located between 27.98° and 28.01° Southing, and between 153.41° and 153.43° Easting (based on the projection of Universal Transverse Mercator UTM zone 56) has a problematic multi thickness peat layer. The peat layer ranges from 0.1 – 7.0 m at different locations and at depths between 1.1 – 40.9 m below the ground surface. To avoid the effects of the highly compressible and low shear strength peat layer, the buildings in the study area have pile foundations. The site, which lies on the beach side, has the tallest high rise buildings and skyscrapers on the Gold Coast (e.g. the Q1 Tower, Queensland’s tallest building at the time of the study); it was also considered the tallest building in Australia. The literature review was undertaken to gain a geotechnical overview of problematic peaty soils in relation to the construction of buildings over such soils. The review was divided into three categories: (1) geology of the Gold Coast; (2) engineering properties of peat (organic layer) and its effects on the engineering design; and (3) Geographic Information System (GIS) implementation in the field of the geotechnical engineering, as well as its suitability to characterise the soil profile in the production of GIS based digital zonation maps.
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View more >Peat is a highly organic and extremely compressible soil. The Surfers Paradise study site area (Gold Coast, Queensland, Australia, located between 27.98° and 28.01° Southing, and between 153.41° and 153.43° Easting (based on the projection of Universal Transverse Mercator UTM zone 56) has a problematic multi thickness peat layer. The peat layer ranges from 0.1 – 7.0 m at different locations and at depths between 1.1 – 40.9 m below the ground surface. To avoid the effects of the highly compressible and low shear strength peat layer, the buildings in the study area have pile foundations. The site, which lies on the beach side, has the tallest high rise buildings and skyscrapers on the Gold Coast (e.g. the Q1 Tower, Queensland’s tallest building at the time of the study); it was also considered the tallest building in Australia. The literature review was undertaken to gain a geotechnical overview of problematic peaty soils in relation to the construction of buildings over such soils. The review was divided into three categories: (1) geology of the Gold Coast; (2) engineering properties of peat (organic layer) and its effects on the engineering design; and (3) Geographic Information System (GIS) implementation in the field of the geotechnical engineering, as well as its suitability to characterise the soil profile in the production of GIS based digital zonation maps.
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Thesis Type
Thesis (PhD Doctorate)
Degree Program
Doctor of Philosophy (PhD)
School
Griffith School of Engineering
Copyright Statement
The author owns the copyright in this thesis, unless stated otherwise.
Item Access Status
Public
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Subject
Peat
Soil science
Geographic Information System (GIS)
Digital geotechnical maps