低桩基础垂直承载力问题,实质是一个桩土共同承担外荷载的问题。土直接承担外荷载的大小与桩距、桩长和土的物理力学性质有关。本文以实测资料为依据,对桩土共同作用问题进行了分析研究,提出了简单实用的近似计算方法,并初步探讨了低桩基础在工作过程中底板与基土可能发生脱空的问题。 The problem of vertical bearing capacity of low-piled foundations is essentially a question of whether piles and soils share the external load. The size of the external load that the soil directly bears is related to the pile spacing, pile length, and the physical and mechanical properties of the soil. Based on the measured data, this paper analyzes and studies the joint action of piles and soils, proposes a simple and practical approximate calculation method, and preliminarily discusses the problem that the bottom plate and the foundation soil may be separated during the working process of the low pile foundation.