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二、预期固结沉降与固结时间 在码头基桩施打之前,最后一列桩附近地基可压缩土层的预期固结沉降究竟要求多少为宜?对于桩尖支承在灰色亚粘土层上的件杂货码头基桩,由于桩尖端支承力只占总承载力的15％左右,负摩擦附加荷载对允许承载力影响甚大,因而以多完成一点预期沉降,不产生大的负摩擦为妥;对于桩尖支承在灰绿色粉砂层上的集装箱码头基桩,桩尖
Second, the expected consolidation settlement and consolidation time Before the quay in the terminal pile, the consolidation of the soil near the final pile of compressible soil consolidation settlement exactly what is appropriate? For the pile tip supported on the gray clay layer Because of the pile bearing capacity of pile only takes up about 15% of the total bearing capacity, the additional loads with negative friction have a great influence on the allowable bearing capacity. Therefore, it is more appropriate to complete the expected settlement by a little without generating large negative friction. Sharply supported on gray-green silt layer container terminal pile, pile tip