THESIS
c1994
xxi, 333 leaves (some folded) : ill. ; 30 cm
Abstract
The proposed port and airport construction in Hong Kong requires placing of fill to reclaim land from the surrounding sea. To accomplish this, a substantial amount of marine sand will be mined from the nearby shallow waters. The large quantity of fill, the size or the filling operation; and the significance of the project, merit careful consideration of the mechanical behaviours of the filling materials....[
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The proposed port and airport construction in Hong Kong requires placing of fill to reclaim land from the surrounding sea. To accomplish this, a substantial amount of marine sand will be mined from the nearby shallow waters. The large quantity of fill, the size or the filling operation; and the significance of the project, merit careful consideration of the mechanical behaviours of the filling materials.
In this study, a programme for the determination of the basic mechanical properties, static and dynamic behaviours of three marine sands found in Hong Kong is described. These marine sands were mined by trailer hopper dredgers from borrow areas located in South Tathong Channel, Urmston Road and outer Deep Bay, within the territorial water of Hong Kong. These marine sands are transported to the West Kowloon Reclamation site, Tin Shui Wai and Tseung Kwan O Reclamation sites , respectively, for hydraulic filling. Both in-situ samples and bulk samples were taken from the reclamation sites for laboratory investigation. Site investigation works were carried out by the use of CPT investigation technique.
It is found that, for the three marine sands examined in the present study, the results of physical, static and dynamic triaxial tests indicated that these marine sands are suitable for the use as hydraulic filling materials for land reclamation project. It is believed that the good quality of the fill sands, are a direct result of the good source materials and dredging practice adopted. Some general comments regarding the selection and evaluation of marine sand fill for land reclamation project are also given in the present study.
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