Experimental study on roadway rockburst prevention by combined bolt - aluminum foam support

YAO Jing-ming; XU Zi-wen; WANG Jian; WANG Lu

doi:10.16285/j.rsm.2020.0897

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Experimental study on roadway rockburst prevention by combined bolt - aluminum foam support

更新时间：2026-06-25

- Experimental study on roadway rockburst prevention by combined bolt - aluminum foam support
- Vol. 42, Issue 3, Pages: 620-626(2021)
- 作者机构：
  
  1. 重庆大学资源与安全学院,重庆,400044
  2. 重庆大学煤矿灾害动力学与控制国家重点实验室,重庆,400044
  3. 重庆渝新能源有限公司打通一煤矿,重庆,401445
  4. 中交三航局第三工程有限公司,江苏,南京,210011
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2020.0897
  CLC： TD353;TD324
- Online First：15 March 2021，
  
  Published：2021
- 稿件说明：
移动端阅览
YAO Jing-ming, XU Zi-wen, WANG Jian, et al. Experimental study on roadway rockburst prevention by combined bolt - aluminum foam support[J]. 2021, 42(3): 620-626.
DOI：

YAO Jing-ming, XU Zi-wen, WANG Jian, et al. Experimental study on roadway rockburst prevention by combined bolt - aluminum foam support[J]. 2021, 42(3): 620-626. DOI： 10.16285/j.rsm.2020.0897.

摘要

冲击地压巷道围岩控制是防止冲击地压发生的重要研究内容。基于冲击地压发生条件、锚杆支护特点和泡沫铝力学特性，提出了锚杆?泡沫铝联合支护冲击地压巷道方法。为了研究锚杆?泡沫铝联合支护冲击地压巷道机制，运用相似模拟理论，对锚杆?泡沫铝联合支护试样的力学特性进行单轴压缩试验研究。研究结果表明：试样单轴抗压强度与其锚杆支护密度成正比关系，与泡沫铝支护厚度成正幂数关系；试样完全破坏所耗散能量与试样支护的锚杆根数和泡沫铝的厚度成正线性关系，剩余能量系数与试样支护的锚杆根数和泡沫铝的厚度成负线性关系；试样弹性能指数与试样支护的锚杆根数和泡沫铝的厚度均成负对数关系，试样冲击能系数与试样支护的锚杆根数和泡沫铝的厚度均成负对数关系。由此可见，随着锚杆支护密度、泡沫铝支护厚度的增加，锚杆?泡沫铝联合支护试样冲击倾向降低，试样完全破坏释放的能量减少，试样发生冲击破坏危险性降低。研究结果为锚杆?泡沫铝联合支护冲击地压巷道提供理论依据。

Abstract

Controlling of surrounding rock is very important for roadway rockburst prevention. Based on occurring conditions of rockbursts and mechanical properties of bolt and aluminum foam

a new support technology using combined bolt-aluminum foam support is proposed to prevent roadway rockburst. To study the supporting mechanism of combined bolt-aluminum foam in rockburst prevention

the mechanical properties of combined bolt-aluminum foam supporting samples were experimentally studied based on the similar simulation theory. The research results suggest that: the uniaxial compressive strength of samples is directly proportional to the bolt supporting density

and the relationship is positively exponential with the supporting thickness of aluminum foam; both bolt supporting density and aluminum foam supporting thickness relationships are linear positive with the consumed energy of complete samples destruction

negatively linear with remaining energy coefficient of samples

and negative logarithmic with elastic energy index and impact energy index of the samples. Therefore

impact failure of the samples is reduced by the increase of bolt supporting density and aluminum foam supporting thickness. The research results provide a theoretical basis for roadway rockburst prevention with combining bolt and aluminum foam.

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School of Mechanics and Engineering, Liaoning Technical University

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