Analysis Of Bearing Capacity Of Pile Foundation With Special Shape

With the continuous development of coastal ports,high pile wharf has become a commonly used structural types in the soft soil foundation.Meanwhile,due to the continuous development of coastline and the diversification of berthing ships,more and more special-shaped piled wharfs have been built and put into use to meet the complex terrain requirements and berthing requirements.Piled wharf has many advantages such as simple construction,less material cost and lighter structure,but at the same time,wharf structure is vulnerable to damage.Therefore,wharf structural damage detection is very important in engineering design stage and engineering application stage.In this paper,two kinds of piles with different pile foundations are modeled under finite element modeling.After loading the wharf surface load and ship impact load,the responses of various piles under various loads are analyzed.According to the data,the vulnerability of the high pile wharf under different pile foundation arrangement is analyzed.The results are as follows:(1)By setting up the finite element Engineering Single Pile Model under the engineering environment and carrying out the force analysis,the result is compared with the engineering experiment model,which verifies the feasibility of the model analysis for two high pile wharf engineering.(2)Compared with conventional pile foundation layout high pile wharf,special-shaped pile foundation layout type high piled wharf structure is more vulnerable to dynamic damage,resulting in structural damage.The vulnerable part of structure is located in the excavated section of pile body.(3)The structure of conventional pile foundation layout type high pile wharf is easy to be flexible,and the shape of special-shaped pile foundation layout high pile wharf with is better.The two wharf pile foundation pile is at the position of 40 m at the height of the pile node,the lateral displacement increases obviously,and the node is the vulnerable point of the structure.(4)The horizontal stress at the pile cap at two wharf is larger,and the pilebody is more vertical stress at the height of 10 m to 15 m.At the same time,the stress of special-shaped pile foundation layout high pile wharf at various vulnerable points is larger than that of conventional pile foundation.The structural damage of pile Piled Wharf under the same structural strength is more likely,and the distribution of stress response is poor.