无掩护深水区LNG码头栈桥墩台的桩基设计

Pile foundation design for the piers of LNG terminal trestle bridge in unsheltered deepwater

江苏如东地区水深浪大无掩护,墩台受到的波浪荷载较大,地质持力层埋藏较深,LNG码头对栈桥结构的位移要求较高,以往传统墩台桩位布置难以满足设计要求。结合以往工程经验和该墩台的受力特点及使用要求对桩位布置进行优化设计,提出了一种新型桩基布置形式。

Based on the natural conditions of deep water,large wave and unsheltered topographic features in Rudong, Jiangsu province, the large wave load on the pier, the deep embedded geologic supporting stratum, the high requirements of the dis placement of LNG terminal trestle bridge, therefore, the traditional pile foundation layout of the pier cannot satisfy the design requirements. The design is optimized by referring to the relative engineering experiences, the stressed characteristics of the pier and the operating requirements, which led to a new type of pile foundation layout.