压力分散型锚杆剪应力分布与现场试验研究

张四平; 侯庆

doi:10.11835/j.issn.1674-4764.2004.02.011

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压力分散型锚杆剪应力分布与现场试验研究

更新时间：2023-11-28

- 压力分散型锚杆剪应力分布与现场试验研究
- Study on Shear Stress Distribution and In-situ Test of Pressure-Dispersive Anchor
- 土木与环境工程学报（中英文） 2004年26卷第2期页码：41-47
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- DOI：10.11835/j.issn.1674-4764.2004.02.011
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- 纸质出版：2004
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张四平, 侯庆. 压力分散型锚杆剪应力分布与现场试验研究[J]. 土木与环境工程学报（中英文）, 2004,26(2):41-47.

ZHANG Si-ping, HOU Qing. Study on Shear Stress Distribution and In-situ Test of Pressure-Dispersive Anchor[J]. Journal of Civil and Environmental Engineering, 2004, 26(2): 41-47.
张四平, 侯庆. 压力分散型锚杆剪应力分布与现场试验研究[J]. 土木与环境工程学报（中英文）, 2004,26(2):41-47. DOI： 10.11835/j.issn.1674-4764.2004.02.011.

ZHANG Si-ping, HOU Qing. Study on Shear Stress Distribution and In-situ Test of Pressure-Dispersive Anchor[J]. Journal of Civil and Environmental Engineering, 2004, 26(2): 41-47. DOI： 10.11835/j.issn.1674-4764.2004.02.011.

摘要

将Mindlin弹性位移解与有限元的基本方法相结合，计算了压力分散型锚杆的剪应力分布规律，对比分析了其受力性能与拉力型锚杆的区别；通过在软弱岩层中进行压力分散型锚杆的现场承载力试验，证实了压力分散型锚杆的承载能力与同条件的拉力型锚杆相比有较大幅度的提高，并分析了承载体间距对于压力分散型锚杆承载能力的影响，可为该种新型锚杆今后的工程应用提供参考。

Abstract

Combining the Mindlin elastic displacement solution with the elementary theory of finite element

in this paper

the shear stress distribution of pressure-dispersive anchor is calculated. Its work performances were compared with those of tensile anchor. According to the in-situ pull-out test of pressure-dispersive anchors in weak rock stratums

it is proven that the bearing capacity of pressure-dispersive anchor increases rather evidently than that of tensile anchor under the same condition and the effect of spacing between load-supporting bodies on the bearing capacity of pressure-dispersive anchor is analyzed. The analysis results of this paper can offer some references to the engineering application of this new type of anchor in the future.

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