摘要
多层或低层裙房的地下室埋置深度较深,或地下车库无地上房屋及顶板上覆土较少,当地下水位埋藏较浅时,建筑地下室存在上浮问题。根据桩身轴力沿桩长的分布规律和预应力技术分析,论证了采用拉力分散型预应力抗拔桩抵抗水浮力的可行性,并提出拉力分散型预应力抗拔桩的设计方法。与传统的普通抗拔桩相比,在不增加工程成本前提下,作为永久性抗浮措施技术性更加合理,具有特别重要的工程实用意义。
A building basement will rise when underground water table is shallow if the depth of the basement for a multiplayer or low-rise podium is deeper, or there are no surface building and overlying soil on the underground garage. The design method of a pre-stressed pull-out pile with tension dispersed is proposed according to the distribution of the axial force of a pile along its length, and the feasibility of the anti-water float of this sort of pile is analyzed. It is more rational for the pile to be used as permanent anti-float measure as compared to a common tension pile.
出处
《建筑结构》
CSCD
北大核心
2006年第10期43-45,共3页
Building Structure
关键词
压重
普通抗拔桩
拉力分散型预应力抗拔桩
预应力筋
非预应力筋
ballast
ordinary tension pile
pre-stressed pull-out pile
tension dispersed
pre-stressed bar
non-prestressed bar
