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Landslip Preventive Measures Division 2

The Landslip Preventive Measures Division 2 consists of two Design Sections and two Consultant Management Sections.

  • Under the Landslip Prevention and Mitigation (LPMit) Programme, the Division and its consultants carry out studies of government man-made slopes and natural hillside catchments to identify potential danger and the need for prevention and mitigation works. A risk-based priority ranking system will be used to select the most deserving man-made slopes and natural hillside catchments with known hazards for action under the LPMit Programme. The Division and its consultants will carry out the detailed design and implement the necessary landslip prevention and mitigation works for substandard man-made slopes and vulnerable natural hillside catchments.

  • The landslip prevention and mitigation works designed in-house by the Design Sections are implemented through works contracts managed by the Works Section of the Landslip Preventive Measures Division 3. The activities of the Design Sections include desk study, aerial photograph interpretation, field mapping and ground investigation, stability analysis, debris mobility modeling, design of landslip prevention and mitigation works and provision of design advices during construction. Some of the man-made slopes and natural hillside catchments dealt with by the Division are implemented through consultants. The tasks carried out by these consultants, who are managed by the Consultant Management Sections, include studies of man-made slopes and natural hillside catchments, design of landslip prevention and mitigation works, preparation of contract documents and supervision of construction. The duties of the Consultant Management Sections include reviewing and monitoring of the progress of the landslip prevention and mitigation measures and related tasks under the consultancy agreement, expenditure control and coordination with other government departments. The progress of the geotechnical studies and landslip prevention and mitigation works carried out under the LPMit Programme are shown on the Quarterly Report prepared by the Landslip Preventive Measures Division 1.

  • The Landslip Preventive Measures Division 2 is keen to improve quality and cost effectiveness in the design of landslip prevention and mitigation works. Therefore, innovative design approaches and new techniques are adopted where found suitable.

  • Apart from slope safety, we are concerned about the appearance of man-made slopes and natural hillside catchments. It is GEO's policy to make the man-made slopes upgraded under the LPMit Programme look as natural as possible through the use of soft and/or hard landscape treatment. For natural hillside catchments, the existing vegetation including trees and shrubs is preserved as far as practical during the construction of landslide risk mitigation measures. Soft and/or hard landscape treatments similar to those for man-made slopes would be provided for the risk mitigation measures as appropriate to minimize their visual impact and blend them with their surrounding environment.

  • All consultants involved in LPMit projects are required under their terms of the consultancy agreements to provide necessary landscape input during the design and construction stages. GEO has been appointing landscape consultants to provide landscape input to the in-house projects. In addition, technical support on landscaping is available from the Landscape Unit of CEDD Headquarter.

  • To improve the technology in slope greening, we have been pursuing researches into the use of vegetation in landslip prevention and mitigation works and experimenting with new techniques of providing erosion control measures and vegetation covers to steep slopes. Results of the research provide useful knowledge for establishing robust, cost-effective and eco-friendly vegetation covers for man-made slopes and natural hillside mitigation measures.

  • The GEO issued GEO Publication No. 1/2011 “Technical Guidelines on Landscape Treatment for Slopes” in September 2011, to promulgate the latest best practice of landscape treatment for slopes, which include landscape treatment for natural terrain mitigation works and landslide repairs.  In 2012, the Hong Kong Institute of Landscape Architects granted a Merit Award under the Landscape Planning/Research Category for this new Publication in recognition of GEO’s continuous improvement and contributions to the enhancement of the slope environment.