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Conditions and Evaluation of the Route of Asia Submarine-cable Express (Hongkong Segment)
Pages: 71-75
Year: Issue:  4
Journal: Hydrographic Surveying and Charting

Keyword:  submarine fibre-optic cableroute surveyseabed terrainengineering geologic conditions of the route areaengineering evaluation;
Abstract: Based on survey with multibeam system,side scan sonar,subbottom profiler,gravity core sampler in Hongkong route survey area,we analyze and evaluate the natural environment and engineering geologic conditions in the route area in details including:seabed terrain is flat and the average slope is less than 0.2 degree;the route crosses silt/clay/sand and sand waves seabed areas,the highest sand wave height is up to 3 ~4m;the route area belongs to stable crustal region;wreck and some obstacles are found on the seabed in the route area.After adjusting the route in the area where crossing the huge sand waves and close to the obstacles,the conclusion is that the natural and engineering environment of the submarine fibre-optic cable route area is suitable for cable laying.On the same time some suggests are given for the cable laying.
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