一、单桩容许承载力的确定单桩垂直静载试验成果最终用于设计的是单桩容许承载力P_a。在确定桩的容许承载力时,与天然地基一样,除满足强度稳定条件(通常是以极限荷载P_u或屈服荷载P_y除以规定的安全系数)外,还应满足变形条件(如规定桩顶容许下沉量等)。1.根据试桩极限荷载或屈服荷载除以规定的安 I. Determination of the allowable bearing capacity of a single pile The vertical static load test results of a single pile are ultimately used to design the permissible bearing capacity P_a of a single pile. In determining the permissible bearing capacity of a pile, in addition to satisfying the conditions of strength stability (usually the ultimate load P_u or the yield load P_y divided by the specified safety factor) as in the case of natural foundations, the deformation conditions (such as the allowable pile top tolerance) should also be satisfied. The amount of sinking, etc.). 1. According to the test pile ultimate load or yield load divided by the prescribed safety