拉力分散型预应力锚杆的工程应用  

APPLICATION OF RALLY DISPERSED PRESTRESSED ANCHOR

作　　者：李哲琳 戴彦杰[2] 

机构地区：[1]中国新兴建设开发总公司,北京100039 [2]中航勘察设计研究院,北京100098

出　　处：《工业建筑》2009年第S1期730-731,734,共3页Industrial Construction

摘　　要：目前工程建设基坑开挖越来越深,传统的预应力锚杆应力集中现象十分明显,采取拉力分散型锚杆可以将集中力分散为若干个较小的力,从而克服应力集中的缺陷。在介绍拉力分散型锚杆的作用原理及其结构构造的基础上,通过工程实例论述了其优越性能,其技术应用可作为类似工程借鉴。Due to the construction excavation deeper and deeper,the stress concentration is more and more obvious in the traditional pre-stressed anchor.Using rally dispersed anchor,the concentration can be dispersed to several smaller force,thereby overcoming stress concentration deficiencies.The function of principle and structure of the rally dispersed anchor are described,and its superior performance is confirmed through examples of projects.The technology applications can be used as reference similar project.

关 键 词：基坑 锚杆 拉力分散 预应力 自由段 锚固段 

分 类 号：TU476[建筑科学—结构工程]