轴对称条件下弹性岩石中全长粘结型锚杆支护的各向异性分析

• 作 者: 顿志林 高家美
• 出 处: 焦作矿业学院学报
• 发表日期: 1987年02期
• 关键词: 锚固区 锚杆支护 锚杆 全长 围岩 岩石 各向异性 锚杆长度 各向同性 弹性常数

本文把锚杆长度范围内的围岩和锚杆(文中称作“锚固区”)作为一个整体来考虑,锚杆的作用看作是改变了锚固区内的弹性常数。在分析中,把锚固区作为正交各向异性体来处理,而锚固区外的围岩仍然看作各向同性体。经推演,给出了锚固区内和锚固区外的应力和位移。

This article considers the surrounding rock and anchor rod (referred to as “anchor zone” in the text) as a whole. The effect of the anchor rod is to change the elastic constant in the anchorage zone. In the analysis, the anchorage zone is treated as an orthotropic body, while the surrounding rock outside the anchorage zone is still considered isotropic. After deduction, the stress and displacement outside the anchorage zone and anchorage zone are given.