本文对大桩距低承台摩擦群桩中的单桩取用其极限承载力，形成桩上共同作用并明确分担荷载的复合桩基；提出整体承载力和沉降量双重控制的设计方法。 In this paper, the ultimate bearing capacity of a single pile in a pile group with large piles and low pile caps is taken to form a composite pile with joints acting on the pile and loads are clearly shared. A design method for the dual control of overall bearing capacity and settlement is proposed.