摘要
通过现场静荷载试验,在膨胀土地基中对桩身穿越大气影响深度并以硬塑黏土为承力盘和桩端持力层的单节DX挤扩灌注桩及以硬塑黏土为上承力盘持力层和以硬塑—坚硬黏土为下承力盘和桩端持力层的两节DX挤扩灌注桩的极限承载力进行判定,分析其荷载传递机理,并对两类桩的侧阻力、盘端阻力和桩端阻力的分配及其发展规律进行研究。
Static loading tests for DX piles with single and double bulbs installed in plastic clay were conducted in field. Their ultimate bearing capacities is determined, its load transfer mechanism is analysed, and the distribution and development of the skin-friction resistances, the bulb resistances and the tip resistances of DX piles of these two kinds are studied.
出处
《工业建筑》
CSCD
北大核心
2009年第2期26-37,共12页
Industrial Construction
关键词
DX桩
承力盘
静荷载试验
极限承载力
侧阻力
盘端阻力
膨胀土
黏土
DX pile
bulb bearing
static loading test
ultimate bearing capacity
skin-friction resistance
bulb resistance
expansive soil
clay
