摘要
介绍了框架预应力锚杆柔性支护结构的基本构成和特点,基于简单圆弧滑动条分法建立了其整体稳定性安全系数模型,分析探讨了锚杆设计参数即锚杆锚固体直径、锚杆水平倾角、锚杆水平间距、锚杆竖向初始距离和锚杆竖向间距对支护结构稳定性的影响,对框架预应力锚杆柔性支护结构的设计和施工具有一定的参考价值.
The basic composition and characteristics of flexible supporting structure with prestressed anchors are introduced. Based on the simple circleular slice, the model for safety factor of internal overall stability of this supporting structure is established. The influences of the design parameters of prestressed anchor on the stability of supporting structure are analyzed, including anchor body diameter, horizontal inclination angle, horizontal spacing, vertical initial distance and vertical spacing of anchor. This paper will provide some references to the design and construction of frame flexible supporting structure with prestressed anchors.
出处
《甘肃科学学报》
2008年第1期148-151,共4页
Journal of Gansu Sciences
基金
甘肃省科技攻关项目(2GS064-A52-040)
关键词
预应力锚杆
设计参数
柔性支护结构
稳定性
prestressed anchor
design parameters
flexible supporting structure
stability
