摩擦型桩的竖向和水平向承载机理的实测分析  

ANALYSIS OF VERTICAL AND HORIZONTAL BEARING CAPACITY MECHANISM OF BUOYANT PILE

作　　者：韩学民 孙亮强 

机构地区：[1]山东省城乡建设勘察院,山东济南250031

出　　处：《建筑技术开发》2013年第6期22-26,共5页Building Technology Development

摘　　要：通过对工程中单桩竖向和水平承载力试验结果的分析,讨论了摩擦型桩的竖向和水平向工作机理,试验表明:在竖向荷载作用下试桩深部位置侧阻随荷载增加的较慢、浅部位置增加的较快;在桩顶水平荷载作用下,桩身弯矩和水平位移基本在约1/4桩长或者12倍桩径以上位置,最大弯矩基本在约1/8桩长或6倍桩径以上位置,正向位移(与水平荷载作用方向相同)约在1/7桩长或7倍桩径以上位置。Based on the test data of buoyant pile, its vertical and horizontal bearing capacity mechanism is discussed. The result shows：the side friction force around the test pile in deep position increase more slowly than that in position location , as the top load of pile increase. Under the horizontal load, bending moment and the horizontal displacement are found only at about 1/4 pile length or 12 times the pile diameter,the maximum bending moment at about 1/8 pile length or more than 6 times the pile diameter,positive displacement at about 1/7 pile length or more than 7 times the pile diameter.

关 键 词：摩擦桩 竖向承载力 水平承载力 内力 变形 

分 类 号：TU473.11[建筑科学—结构工程]