Numerical simulation on stress distribution in anchorage body

ZHAN Yu-bao; BI Xuan-ke; YOU Chun-an; LU Xing-li; SUN Feng

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Numerical simulation on stress distribution in anchorage body

更新时间：2026-06-25

- Numerical simulation on stress distribution in anchorage body
- Vol. 27, Issue S1, (2006)
- 作者机构：
  
  1. 山东科技大学土木与建筑学院,青岛,266510
  2. 山东科技大学泰安校区,泰安,271019
- 作者简介：
- 基金信息：
- DOI：
  CLC： TD353+.6
- Online First：15 December 2006，
  
  Published：2006
- 稿件说明：
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ZHAN Yu-bao, BI Xuan-ke, YOU Chun-an, et al. Numerical simulation on stress distribution in anchorage body[J]. 2006, 27(S1).
DOI：

ZHAN Yu-bao, BI Xuan-ke, YOU Chun-an, et al. Numerical simulation on stress distribution in anchorage body[J]. 2006, 27(S1). DOI：

摘要

采用非线性有限元法，分析了全长粘结式锚杆在荷载作用下剪应力的分布规律，同时研究了被加固岩土体的性质对锚固体剪应力分布规律的影响。并将数值模拟的结果与理论计算以及试验结果进行了对比分析。分析表明，锚固体剪应力的分布非常不均匀；当荷载不大时，锚杆所受的剪应力分布范围较小，而最大剪应力数值较大；随着荷载的加大，剪应力的分布范围有向下扩展的趋势，但扩展的速度比较慢；锚固体所受的剪应力的大小和分布与岩体性质有密切的关系，岩石越坚硬，剪应力分布越集中，最大剪应力的数值越大；而岩体越松软，剪应力分布就越均匀，最大剪应力的数值就越小。

Abstract

The shear stress distribution of the wholly grouted bolt is analyzed by using a nonlinear finite element method; also the strengthened rock-soil body's properties are researched

which influence the anchorage body's shear stress distribution. Afterwards

a contrastive analysis is done among numerical simulation result

theoretical calculation and experimental result; it indicates that the shear stress distribution in the anchorage body is uneven. Under the small load

the bolt's shear stress distribution range is small but the maximum shear stress is large; with the increase of load

its distribution range tends to expand downwards with a slow speed. The shear stress and its distribution have a close relationship to rock-soil body's properties: the stiffer the rock

the more concentrated the shear stress and the larger the maximum shear stress; on the contrary

the evener the distribution and the smaller the maximum shear stress.

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