串囊式充气锚杆锚固理论研究

Study on Anchoring Theory of Series Bag Inflatable Anchor

串囊式充气锚杆作为一种新型可回收锚杆在国内研究较少,目前针对其的研究都处于室内模型试验阶段,将串囊式充气锚杆应用到工程施工中还有较多的问题有待解决探讨。文章结合实际提出一种能用于实际工程中的串囊式充气锚杆结构设计方案,并利用弹塑性理论研究其锚固机理,为研究串囊式充气锚杆锚固段囊体间搭配模式与锚杆承载力之间的关系提供理论支持。

As a new type of recoverable anchor rod,the research of series bag inflatable anchor rod is less in our country.at present,the research on it is in the indoor model test stage.there are still many problems to be solved in the application of string bag inflatable anchor rod to engineering construction.In this paper,a structural design scheme of series inflatable anchor rod which can be used in practical engineering is put forward,and its anchoring mechanism is studied by using elastoplastic theory.It provides theoretical support for the study of the relationship between the matching mode and the bearing capacity of the anchor rod in the anchoring section of the series inflatable anchor rod.