Study on Bearing Capacity of Bucket Foundation Subjected to Horizontal Loading

Wu, K. and Fan, Q., 2015. Study on bearing capacity of bucket foundation subjected to horizontal loading.

The bucket foundation is one parts of offshore platform and is wearing the wave or wind loading which causes the bucket foundation instability to offshore platform falling. So, the numerical simulation, limit analysis and model test are investigated and compared in order to reveal the bearing capacity of bucket foundation under horizontal loading. Based on the three analysis methods compared, it can be observed that: (1) the results of the three methods are in good agreement. (2) The bucket foundation subjected to horizontal loading is rotation and the center of rotation is located in the two-thirds of embedded depth. Under horizontal load, the coherent spoon plastic zone is formed in the bottom of bucket foundation. And, the wedge plastic zone is formed on both sides of the bucket foundation. While, in the same direction with horizontal load of the barrel side is passive area and larger earth pressure is being because of barreling into foundation soil. On the other side of the foundation is active area, which the foundation is separation with soil.