摘要
通过现场抗压和抗拔静载试验,对以粉细砂和黏质粉土为上、下承力盘持力土层和以黏质粉土为桩端持力土层的两节抗压DX挤扩灌注桩及以砂质粉土和粉砂层为上、下承力盘持力土层的两节抗拔DX挤扩灌注桩的抗压和抗拔极限承载力进行判定,分析其承载机理,并对桩侧阻力、盘端阻力和桩端阻力的分配及其发展规律进行研究,为该工程的应用提供了详实的依据。
A series of compression and tension static loading tests for DX piles with double bulbs which were respectively installed in silty fine sand and sandy silt were conducted in field. The ultimate bearing capacities are 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 this kind are studied. The test results supplies full and accurate bases for engineering applications.
出处
《工业建筑》
CSCD
北大核心
2009年第2期45-54,79,共11页
Industrial Construction
关键词
DX桩
承力盘
极限承载力
侧阻力
盘端阻力
粉砂
砂质粉土
DX pile
bulb bearing
ultimate bearing capacity
skin-friction resistance
bulb resistance
silty sand sandy
silt
