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- Title
铺砂驳分层回填工艺在大面积水下摊铺 砂垫层项目的应用.
- Authors
赵宝帅; 张健良
- Abstract
In view of the fact that the original seabed mud surface in the backfilling area of the main reclamation works of Hong Kong International Airport three runway system project is deposit marine mud with extremely low strength. In order to avoid silt squeezing and unstable foundation, the layered filling method was proposed for underwater dumping. According to the requirements of the project design documents, 2 m thick sand blanket should be laid on the original seabed surface, and the thickness of each layer should not exceed 0.5 m. The construction scheme of using spreader pontoon to carry out underwater layered fine sand throwing cushion was proposed, which effectively solves a series of problems such as underwater thin-layer fine sanding and strict environmental protection requirements, realizes underwater large-area high-efficiency environmental protection sanding operation, and the construction quality detection effect is good. This process provides a good engineering and technical reference for similar projects at home and abroad.
- Subjects
MARINE sediments; HONG Kong International Airport; INTERNATIONAL airports; ENVIRONMENTAL protection; PONTOONS; SAND; OCEAN bottom
- Publication
China Harbour Engineering, 2022, Vol 42, Issue 2, p10
- ISSN
2095-7874
- Publication type
Article
- DOI
10.7640/zggwjs202202003