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本文从设计理论的角度出发,按桩身的刚度定性地将常见含桩类复合地基划分为柔性、中性和刚性桩三种复合地基,并在以往的成果的基础上介绍这三种复合地基设计方法的基本要点,针时常规设计方法的缺点,提出了复合地基设计计算的力学模型,确定了中刚性桩复合地基按变形求解的基本思想;是复合地基设计理论的重大突破,为进一步研究复合地基的变形与受力提供了有效的手段。
From the perspective of design theory, this paper qualitatively divides the common composite foundation with piles into three composite foundations: flexible, neutral, and rigid piles according to the stiffness of the pile. Based on the previous results, the three composite foundations are introduced. The basic points of the design method and the shortcomings of the conventional design method of the needle are presented. The mechanical model of the composite foundation design calculation is proposed. The basic idea of solving the deformation of the composite foundation with medium-rigid piles is determined. It is a major breakthrough in the theory of composite foundation design. The deformation and force of the composite foundation provide an effective means.