抄録
It is introduced that the construction process of west artificial island of Hong Kong-Zhuhai-Macao Bridge. The emphasis is the settlement of foundation and the deformation of island wall which are calculated by finite difference method (FDM) during construction. By analysis, consolidation settlement of soft clay foundation and steel cylinders deformation under every construction procedure are known. And key procedures are discovered for guiding design and construction. The results show that two construction procedures backfilling sand in the island and flinging stone outside the island to be slope are key procedures, because they have greater influence on steel cylinders and foundation of island. Foundation settlement speed in the construction period is far greater than the specification requirements, while foundation crack and other accidents are not available. The reason is steel cylinders restricting lateral deformation of soft clay foundation. Therefore, the foundation settlement control standards in such artificial island should break through the requirements of specification. Meanwhile, it is known that the maximum settlement of soft clay foundation of artificial island is 2.92m. Residual settlement is 13cm. Maximum vertical displacement of the steel cylinder top is 28.5cm, and lateral displacement is 8cm.
