Field testing study on root effect mechanism of prestressed anchor cable groups

WANG Hai-bin; GAO Bo

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Field testing study on root effect mechanism of prestressed anchor cable groups

更新时间：2026-06-25

- Field testing study on root effect mechanism of prestressed anchor cable groups
- Vol. 27, Issue 1, (2006)
- 作者机构：
  
  西南交通大学土木工程学院,成都,610031
- 作者简介：
- 基金信息：
- DOI：
  CLC： U45
- Online First：31 October 2013，
  
  Published：2006
- 稿件说明：
移动端阅览
WANG Hai-bin, GAO Bo. Field testing study on root effect mechanism of prestressed anchor cable groups[J]. 2006, 27(1).
DOI：

WANG Hai-bin, GAO Bo. Field testing study on root effect mechanism of prestressed anchor cable groups[J]. 2006, 27(1). DOI：

摘要

根据悬索桥隧道式锚碇系统预应力岩锚原位试验及模拟计算结果，分析了锚索的锚固长度、自由长度、锚固注浆压力以及锚注体与围岩界面结合程度对岩锚极限抗拔力的影响。比较了群锚与单锚作用下的岩锚本身及宿主介质的荷载、位移分布特征。群锚约束岩体向临空面变形，具有增韧止裂的根状效应，受埋深(自由长度)、间距、初始预应力、加载历史等影响。锚索的锚固长度控制着岩锚的极限承载力，而自由段长度控制着其在隧道式复合锚碇系统中参与荷载分担的贡献值和时机，自由段长度对有效传递和分散围岩应力有关键作用。指出群锚整体破坏形态存在传递多米诺效应。

Abstract

Based on field testing and numerical simulation results on prestressed anchor cable of suspension bridge with tunnel style anchorage system

the ultimate anti-pulling capacity of prestressed anchor cable affected by anchor length

free length，grouting pressure and the level of combination between grout-cable and rock mass were analyzed. The load and displacement distribution characteristic of anchor cable and host rock medium were compared single anchor with anchor cable group. Due to enhanced toughness and anti-crack of root effect

which were affected by embedded depth(free length)

spacing

initial prestress

load history

etc.

anchor cables restrained the rock mass deforming toward surface. Anchor length determines the ultimate anti-pulling capacity

but free length has key effect to transfer and disperse stress to wall rock and determines contribution value and occasion while they participated the load applied on tunnel anchorage system. Domino effect occured while the anchor cable group was destroyed.

关键词

Keywords

references

Views

1051

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Strength development model for slurry-like mud treated by physicochemical combined method considering preloading stress

Evaluation of liquefaction flow characteristics and soil state of saturated sand based on tension and compression apparent viscosity

Mechanism of water infiltration affecting ground ice melting in the silty clay layers of the Dema Expressway in the eastern Qinghai-Xizang Plateau

Physical-mechanical properties and durability analysis of foamed lightweight soil based on excavated soil and fly ash

Comparative theoretical and experimental analysis of rock breaking by tunnel boring machine disc cutters

Related Author

No data

Related Institution

No data

AI问答

⁰