Impact resistance characteristics of steel pipe shrinkable 
energy-absorbing bolt and its potential for rockburst 
mitigation and control

ZHAO Ming-zhu; WU Xue-zhen; YE Qing; WANG Gang; JIANG Yu-jing; DENG Tao

doi:10.16285/j.rsm.2024.0079

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Impact resistance characteristics of steel pipe shrinkable energy-absorbing bolt and its potential for rockburst mitigation and control

更新时间：2026-06-25

- Impact resistance characteristics of steel pipe shrinkable energy-absorbing bolt and its potential for rockburst mitigation and control
- Vol. 45, Issue 11, Pages: 3355-3365+3377(2024)
- 作者机构：
  
  1. 福州大学土木工程学院,福建,福州,350108
  2. 福建理工大学地下工程福建省高校重点实验室,福建,福州,350118
  3. 山东科技大学山东省土木工程防灾减灾重点实验室,山东,青岛,266590
  4. 长崎大学工学研究科,长崎,日本
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2024.0079
  CLC： TU476
- Online First：15 November 2024，
  
  Published：2024
- 稿件说明：
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ZHAO Ming-zhu, WU Xue-zhen, YE Qing, et al. Impact resistance characteristics of steel pipe shrinkable energy-absorbing bolt and its potential for rockburst mitigation and control[J]. 2024, 45(11): 3355-3365+3377.
DOI：

ZHAO Ming-zhu, WU Xue-zhen, YE Qing, et al. Impact resistance characteristics of steel pipe shrinkable energy-absorbing bolt and its potential for rockburst mitigation and control[J]. 2024, 45(11): 3355-3365+3377. DOI： 10.16285/j.rsm.2024.0079.

摘要

深部岩体非线性大变形特性引发的岩爆灾害一直是岩土工程的世界性难题，严重制约了工程建设的施工进度和工程安全，加强对岩爆防治措施的深入研究刻不容缓。基于钢管挤压变形原理，提出了一种新型的缩管式恒阻大变形锚杆，该种锚杆可在容许较大的变形量的同时提供较高的恒阻力。在前期研究的基础上，通过落锤冲击试验探索了缩管式恒阻大变形锚杆的抗冲击性能。试验结果表明：在整个冲击过程中，缩管式恒阻大变形锚杆的工作阻力稳定在150～180 kN范围内，恒阻特性显著；缩管式恒阻大变形锚杆吸收能量大、效率高，单次可吸收冲击能量为53 kJ；在冲击过程中，试件压缩率仅减小了0.54%～1.43%，变形情况较为稳定。缩管式恒阻大变形锚杆具有良好的抗冲击特能，可为地下工程建设过程中岩爆灾害的治理提供有力的技术支撑。

Abstract

The rockburst disaster triggered by the nonlinear large-deformation characteristics of deep rock masses has been a worldwide problem in geotechnical engineering

severely constraining construction progress and safety in engineering projects. Therefore

it is imperative to intensify in-depth research on rockburst prevention measures. Based on the principle of steel pipe compressive deformation

a novel steel pipe shrinkable energy-absorbing bolt constant-resistance large-deformation bolt was proposed

which can provide a high constant resistance while accommodating a substantial amount of deformation. Building on previous research

the impact resistance of the steel pipe shrinkable energy-absorbing bolt constant-resistance large-deformation bolt was investigated through drop hammer impact tests. The test results indicate that: during the impact process

the working resistance of the steel pipe shrinkable energy-absorbing bolt constant-resistance large-deformation bolt remains stable within the range of 150 kN to 180 kN

demonstrating notable constant-resistance characteristics; the bolt absorbs a significant amount of energy with high efficiency

capable of absorbing up to 53 kJ of impact energy in a single instance; throughout the impact

the compression rate of the specimen only decreased by 0.54% to 1.43%

indicating relatively stable deformation. The steel pipe shrinkable energy-absorbing bolt constant-resistance large-deformation bolt exhibits excellent impact resistance

providing robust technical support for the prevention and control of rockburst disasters during underground engineering construction.

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