It can not only increase the bearing capacity of supporting course, but also reduce the deformation modulus of the foundation and accelerate the drainage and consolidation function of the foundation.

它不仅能提高持力层的承载力，减少地基变形量，同时还可以加速地基的排水固结作用。

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The authors discuss the basic conception about multi type pile composite foundation and composite modulus, and recommend the calculation methods on bearing capacity and deformation.

讨论了多桩型复合地基及其复合模量的基本概念。介绍了多桩型复合地基承载力和变形的计算方法。

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Horizontal foundation modulus is an important parameter in calculating the deformation of deep excavation project, evaluating the stability of the retaining structure.

水平基床系数是在计算深基坑的变形、支护结构的稳定性，以及桩在水平荷载下的位移、内力等方面有重要意义的参数。

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