静压预应力高强混凝土管桩竖向承载力及沉降特性  

Vertical Bearing Capacity and Settlement Characteristics of Static Pressure PHC Piles

作　　者：苗金丽[1] 王凤梅 陈枝东 

机构地区：[1]中国矿业大学(北京),北京100083 [2]深圳宏业基基础有限公司,广东深圳518054

出　　处：《施工技术》2008年第S1期173-176,共4页Construction Technology

摘　　要：在相对软土地区,土木建筑工程大量应用预应力高强混凝土管桩(PHC)。由于对该桩型认识不足,造成一定程度的浪费或酿成工程事故。本文以深圳聚友园工业区工程静压预应力高强混凝土管桩的静载试验成果为依据,仔细分析了场地地层沉积环境特征,分析了PHC桩竖向承载力特性、终压力控制及时空效应,提出了一套勘察、设计及施工理念。A large amount of pre-reinforced high strength concrete pipe piles(PHC piles)are used in civil engineering in the soft soil regions.The phenomenon of economics waste and engineering accidents increasing for lack of knowledge about the pile.In this paper,the strata and sediment environment features of Shenzhen Juyouyuan Industry Area are researched in detail.Based on the results of static pressure PHC piles test,authors analyze the characteristics of the bearing capacity of PHC piles,the controlling of ultimate pressure, and the effect of space-time.A serial of schemes for geotechnical investigation and surveying,design and construction are put forward.

关 键 词：高强预应力混凝土管桩 静压法 时空效应 竖向承载力 

分 类 号：TU473.11[建筑科学—结构工程]