竖直荷载作用下桩与桩间土协同工作机理分析

An Analysis on Corporate Working Mechanism of Piles and Soils between Piles under Vertical Loads

对承台下群桩及桩间土的受力和变形机理进行了分析,应用桩与桩间土的变形协调条件,推算出桩间土分担上部荷载的定量计算式,其表达式物理力学概念简明清晰.通过工程算例,阐明了其计算过程和方法,计算结果表明,在桩与桩间土共同工作的适用条件下,桩间土分担上部荷载的效果明显.

The paper analyzes the mechanism of action and deformation for piles and soils among piles. On the basis of compatible deformation condition between piles and soils among piles, the quantitative formula is acquired about soils among piles how to distribute upper loads, the formula mechanics concept is simple. Finally, the paper expounds calculation process and method through a engineering example. Calculation shows the effect that soils among piles bear upper loads is obvious under adaptable conditions.