缓粘结预应力抗拔桩应用研究
APPLICATION OF UPLIFT PILE WITH GENTLY BONDED PRESTRESSED
任孟良 1刘欢 1姜波 2李徐 3毛宗原1
作者信息
- 1. 中国建筑技术集团有限公司,北京 100013
- 2. 紫光集团有限公司,北京 100191
- 3. 北京京投银泰尚德置业有限公司,北京 102200
- 折叠
摘要
随着我国地下工程的发展,抗拔桩的应用得到普及,为解决传统抗拔桩桩身开裂及无粘结预应力抗拔桩预应力损失问题,将缓粘结预应力技术应用到抗拔桩中,并结合实际工程,介绍缓粘结预应力抗拔桩的桩身构造、技术参数以及施工工艺,通过对比工程原设计抗拔桩,缓粘结预应力抗拔桩可大幅节省钢筋用量,有效节约工程造价与工期.
Abstract
With the development of underground engineering in China,the application of unlift pile has been popularized.In order to solve the problems of cracking of traditional unlift pile and prestress loss of unbonded prestressed unlift pile,the gently bonded prestressed technology is applied.Combined with the practical project,the pile structure,technical parameters and construction technology of the gently bonded prestressed unlift pile are introduced.By comparing the original design of the project,the gently bonded prestressed unlift pile can greatly save the amount of reinforcement,the project cost and construction period.
关键词
预应力/缓粘结预应力/抗拔桩Key words
prestress/gently bonded prestress/uplift pile引用本文复制引用
出版年
2024
NETL
NSTL
万方数据