floating foundation
1.Five effects of embedment depth,namely,Gibson effect,trench effect,side-wall contact effect,retaining wall effect and floating foundation effect,are analyzed.
3.Using the general software ANSYS in this paper, vertical coupling vibration of vehicle-rail-floating slab system is simulated, and then natural frequencies, foundation counterforce, vibration acceleration and displacement of car body, interaction force of wheel and rail are obtained, the decreasing vibration efficiencies of floating slab structure and it of general monolithic roadbed are compared, the vertical vibration characteristic of car body is analyzed asa train is passing through the floating slab structures different frequency.
4.Abstract: Based on the research,development and experiment of a prototype of mobile offshore platform with negative pressure bucket foundation,the operating principles of towing positioning,grounding,floating and shifting of such type of platform in shallow beach sea are described and discussed.It has been shown that this type of platform has the advantage of having remarkable stability in floating and towing when an internal sack is fitted inside of the bucket foundation.
