开口桩和闭口桩性状研究与分析  

STUDY ON PROPERTIES OF OPEN-ENDED AND CLOSED-ENDED PILES

作　　者：张晓健[1] 

机构地区：[1]中南电力设计院岩土工程研究室,武汉430071

出　　处：《工业建筑》2007年第z1期883-885,共3页Industrial Construction

摘　　要：开口桩和闭口桩由于桩芯土的存在使得其作用机理上有所区别,端阻力和侧摩阻力的发挥方式也不同。对开口桩和闭口桩受荷性状进行初步分析,并结合有限元计算结果,得出开口桩比等截面积的闭口桩有着较小的沉降;而在桩长较长时,发挥了同直径实心桩的作用,节省了造价。There is difference on mechanism between open-ended and close-ended piles because of soil plug.The mode of base resistance and profile friction is also different.Load transfers of both open-ended and closed-ended piles are studied.Taking the results of FEM into account,it's concluded that the settlement of open-ended pile is smaller than closed-ended pile with the same cross-section area.While with the increasing of pile length,the open-ended pile,plays a role of closed-ended pile with the same diameter.

关 键 词：开口桩 闭口桩 机理 沉降 

分 类 号：TU473.1[建筑科学—结构工程]