Towards a Sustainable Reclamation for Hk
Towards A Sustainable Reclamation for Hong Kong
Albert Cheng Ting Ning, JP Project Manager HKSAR Highways Department
Aaron Bok Kwok Ming, Chief Engineer HKSAR Highways Department
Daman Lee, Director Ove Arup & Partners Hong Kong Limited
K K Yin, Director Ove Arup & Partners Hong Kong Limited
Synopsis
The call for sustainable development within the built environment has often been the lead priority amongst many of today’s governments’ agenda globally. Hong Kong is of no exception for this course, and has often led in many of its policies. The Hong Kong Zhuhai Macao Bridge (HZMB), being one of ten major infrastructure project announced by the Chief Executive’s Policy Address, is poised to embrace the principle of sustainability for its reclamation.
The HZMB Hong Kong Boundary Crossing Facility (HKBCF) will be located on an artificial island of approximately 150 hectares to be reclaimed in a sustainable manner. The methodology for both the construction of the seawall and the main reclamation area will ensure that the marine soft compressible material remains intact during the process of land formation; i.e. a fully non-dredge reclamation - the first ever method adopted in Hong Kong. No dumping of marine sediments is thus required. With this design sandfill consumption, suspended particles and marine traffic during construction can be significantly reduced. The seawall will be made up of individual circular steel cellular units and physically connected with arc units to form the peripheral retaining structure for the main reclamation. To achieve stability, ground improvement technique using stone column shall be installed to render the subsoil’s enhancement in strength parameters.
Over 60% of the main reclamation shall be filled with public fill material from various sources in Hong Kong. The rationale for this approach is to mitigate potential saturation of existing fill banks as well as re-exportation of public fill to the neighbouring Mainland areas.
Albert Cheng Ting Ning, JP Project Manager HKSAR Highways Department
Aaron Bok Kwok Ming, Chief Engineer HKSAR Highways Department
Daman Lee, Director Ove Arup & Partners Hong Kong Limited
K K Yin, Director Ove Arup & Partners Hong Kong Limited
Synopsis
The call for sustainable development within the built environment has often been the lead priority amongst many of today’s governments’ agenda globally. Hong Kong is of no exception for this course, and has often led in many of its policies. The Hong Kong Zhuhai Macao Bridge (HZMB), being one of ten major infrastructure project announced by the Chief Executive’s Policy Address, is poised to embrace the principle of sustainability for its reclamation.
The HZMB Hong Kong Boundary Crossing Facility (HKBCF) will be located on an artificial island of approximately 150 hectares to be reclaimed in a sustainable manner. The methodology for both the construction of the seawall and the main reclamation area will ensure that the marine soft compressible material remains intact during the process of land formation; i.e. a fully non-dredge reclamation - the first ever method adopted in Hong Kong. No dumping of marine sediments is thus required. With this design sandfill consumption, suspended particles and marine traffic during construction can be significantly reduced. The seawall will be made up of individual circular steel cellular units and physically connected with arc units to form the peripheral retaining structure for the main reclamation. To achieve stability, ground improvement technique using stone column shall be installed to render the subsoil’s enhancement in strength parameters.
Over 60% of the main reclamation shall be filled with public fill material from various sources in Hong Kong. The rationale for this approach is to mitigate potential saturation of existing fill banks as well as re-exportation of public fill to the neighbouring Mainland areas.