管式端锚注浆锚杆原理及应用

Principle and application for tube end anchoring-grouting mortar

本文介绍一种新研制成功的管式端锚注浆锚杆。该锚杆的设计和施工都考虑了与围岩变形相适应的要求。该锚杆利用了钢管受拉后与管内水泥砂浆相互作用的特性，从而提高了锚杆结构强度。文中提出了弹性阶段以后锚杆工作状态的分析，并试探性给出锚杆塑性阶段力学模型。为了与其它类型锚杆相比较，文中应用模糊数学综合评判的方法将国内外现有锚杆进行优→劣排序。

This article has described a tube type end anchoring-grouting mortaranchor which is developed newly. The design and construction of anchor had considered requirements adapted to the deformed enclosing rock.This anchor had ulitised interaction choracteristic between steel tube in tensile and cement mortar,therefore,the stracture strength of anchor is greatly increased.In this article,analysis of anchor work state after generating elastic stage has been presented,and had given the anchor mechanical model of the plastic deformation. In order to compared with other types of anchor. This article had also applied blurring mathemtics to revivw present types of anchor worldwide form superior to inferion sequence.