上海临港海上风电二期桩基勘探及自平衡桩基静载试验

Prospect for Pile Foundation and Static Loading Test of Foundation Pile-Self-balanced Method in the Phase II of Shanghai Lingang Offshore Wind Power

以上海临港海上风力发电二期工程为项目依托,对拟建场区的桩基勘探过程中的岩土工程资料进行了详细的整理和评价,发现桩基地层地质结构与上海地区地质条件具有高度的相似性,印证了两地属于同一沉积盆地——长江三角洲堆积的土层组合的共性。分析了自平衡桩基检测公司的试桩检测数据,结果表明和勘察文件提供数据基本吻合。由于委托方指定使用规范和上海地方桩基规范的差异,勘察文件提供的桩基设计参数和承载力与实际相比较保守。此外,在叙述了检测主要结果的同时,还对某些数据作了进一步的讨论。

In this paper, the author carefully sorted and evaluatedthe geotechnical engineering dataof theprospect for pile foundation in proposed site area, which is relying on the Shanghai Lingang offshore wind powerphase II project, and then found that the geological formation structureand geological conditionsin the pilestratahad a high degree of similarity with that in Shanghai. The results confirmed that the both sites belong tothe same sedimentary basin, the Yangtze dehabasins. Through the analysis of the test pile dataof self-balancedstatic loading of pile foundation from the professional company, the results showed that data isbasically the same. Because of the differences between the client designated specifications and Shanghai localspecificationsin pile foundation, the exploration file providedrelatively conservative bearing capacity and designparameters of the single pile foundation comparing with the actual value. Apart from illustrating the maindetection results, this article also made a further discussion on some of the dataat the same time.