Analysis of diffusion effect and influencing factors of anchoring force of arched rock bolt support plate

YAN Ruyu; NING Jianguo; ZHANG Zhi; SUN Guoqing; DU Minghao

Safety in Coal Mines > 2023 > 54(4): 126-131.

YAN Ruyu, NING Jianguo, ZHANG Zhi, SUN Guoqing, DU Minghao. Analysis of diffusion effect and influencing factors of anchoring force of arched rock bolt support plate[J]. Safety in Coal Mines, 2023, 54(4): 126-131.

Citation:

PDF (2871 KB)

Analysis of diffusion effect and influencing factors of anchoring force of arched rock bolt support plate

More Information

Published Date: April 19, 2023

Graphical Abstract

Abstract

Abstract

The arched rock bolt support plate is one of the key components in the rock bolting system, and its structural size and strength directly affect the rock bolting effect. In this paper, using the method of combining indoor experiments and numerical simulation, the diffusion evolution law of anchoring force in the interior of rock mass at different loading stages of arched rock bolt support plate is studied and analyzed, and secondly, the sensitivity of the diffusion evolution of anchoring force diffusion to the arch height and radius of arched rock bolt support plate is analyzed by using orthogonal experiment theory. The study found that: the anchoring force is transmitted to the rock mass through the tray, and the diffusion forms a “stress bubble” type secondary stress field; if the anchoring force is less than the bearing strength of the rock bolt support plate, the secondary stress field range increases with the increase of the anchoring force, and vice versa; factors such as the arch radius and arch height of the arched rock bolt support plate have a significant impact on the secondary stress field range, but the primary and secondary order of sensitivity is the arch radius > the arch height.
- numerical simulation,
- arched rock bolt support plate,
- stress diffusion,
- orthogonal experiment,
- sensitivity analysis

FullText(HTML)

References (20)

References

[1]	侯朝炯．巷道围岩控制[Ｍ]．徐州：中国矿业大学出版社，2013：117－124.
[2]	赵呈星，李英明．基于围岩变形的预应力锚杆受力特征分析及锚固机理[J]．煤矿安全，2020，51（7）：234－238. ZHAO Chengxing, LI Yingming. Stress characteristics analysis and anchorage mechanism of pre-stressed anchors based on surrounding rock deformation[J]. Safety in Coal Mines, 2020, 51（7）: 234-238.
[3]	汤雷，王宏．大变形围岩内锚杆的承载能力分析[J]．湖南科技大学学报（自然科学版），2004（4）：25－28. TANG Lei, WANG Hong. Analysis of bearing capacity of bolts anchoring in large deformation surrounding rock[J]. Journal of Hunan University of Science & Technology（Natural Science Edition）, 2004（4）: 25-28.
[4]	杨更社，何唐镛．全长锚固锚杆的托板效应[J]．岩石力学与工程报，1991（3）：236－245. YANG Gengshe, HE Tangyong. Effects of the backing plate of a wholly grouted rock bolt[J]. Chinese Journal of Rock Mechanics and Engineering, 1991（3）: 236-245.
[5]	王建智，何唐镛，杨更社．托板对全长锚固锚杆内力的影响[J]．西安矿业学院学报，1989（3）：7－12. WANG Jianzhi, HE Tangyong, YANG Gengshe. The influences of bearing plate on the internal force of overall reinforced bolts[J]. Journal of Xi’an Mining Institute, 1989（3）: 7-12.
[6]	康红普，王金华．煤巷锚杆支护理论与成套技术[Ｍ]．北京：煤炭工业出社，2007.
[7]	康红普，林健，吴拥政，等．锚杆构件力学性能及匹配性[J]．煤炭学报，2015，40（1）：11－23. KANG Hongpu, LIN Jian, WU Yongzheng, et al. Mechanical performances and compatibility of rock bolt components[J]. Journal of China Coal Society, 2015, 40（1）: 11-23.
[8]	吴建星．锚杆托板的合理结构与支护效果研究[D]．北京：煤炭科学研究总院，2009.
[9]	吴建星，康红普，蔡嘉芳．锚杆托盘的实验应力分析[J]．煤矿开采，2009，14（2）：58－60. WU Jianxing, KANG Hongpu. Experimental stress analysis of anchor bolt plate[J]. Coal Mining Technology, 2009, 14（2）:58-60.
[10]	康红普，吴建星．锚杆托板的力学性能与支护效果分析[J]．煤炭学报，2012，37（1）：8－16. KANG Hongpu, WU Jianxing. Analysis on mechanical performance and supporting function of rock bolt plates[J]. Journal of China Coal Society, 2012, 37（1）: 8-16.
[11]	王开松，陈凯．基于ＡＮＳＹＳ的锚杆托盘强度分析及其压力实验[J]．安徽理工大学学报（自然科学版），2013，33（1）：25－27. WANG Kaisong, CHEN Kai. The strength analysis and stress test of the bolt tray based on ANSYS[J]. Journal of Anhui University of Science and Technology（Natural Science）, 2013, 33（1）: 25-27.
[12]	董国强，刘璐，门玉明，等．锚杆托板的合理结构与支护效果研究[J]．煤炭技术，2016，35（3）：260－261. DONG Guoqiang, LIU Lu, MEN Yuming, et al. Reasonable structure and supporting anchor pallets effect[J]. Coal Technology, 2016, 35（3）: 260-261.
[13]	袁溢，漆泰岳．全锚锚杆托板效应的数值模拟分析[J]．矿业工程，2006（5）：65－67. YUAN Yi, QI Taiyue. Simulating analysis of function of support plate for anchor[J]. Mining Engineering, 2006（5）: 65-67.
[14]	郑仰发，康红普，鞠文君，等．锚杆拱形托板承载力试验与分析[J]．采矿与安全工程学报，2016，33（3）：437－443. ZHENG Yangfa, KANG Hongpu, JU Wenjun, et al. Experiment and analysis of bearing capability of arched pallet for anchor bolts[J]. Journal of Mining & Safety Engineering, 2016, 33（3）: 437-443.
[15]	吴拥政．锚杆附件力学性能匹配性研究[J]．煤炭科学技术，2021，49（4）：95－102. WU Yongzheng. Study on mechanical properties and compatibility of bolt components[J]. Coal Science and Technology, 2021, 49（4）: 95-102.
[16]	吴拥政．锚杆杆体的受力状态及支护作用研究[D]．北京：煤炭科学研究总院，2009.
[17]	王照明．锚杆托板组合构件协调作用原理及应用[J]．煤矿安全，2021，52（10）：79－86. WANG Zhaoming. Principle and application of coordinated action of rock bolt support plate composite component[J]. Safety in Coal Mines, 2021, 52（10）: 79-86.
[18]	明治清，顾金才，张向阳，等．锚杆垫板形式对洞室抗爆效果的影响试验研究[J]．岩土力学，2012，33（10）：2991－2995. MING Zhiqing, GU Jincai, ZHANG Xiangyang, et al. Study of anti-explosion effects of tunnels with different forms of bolt bolster plates[J]. Rock and Soil Mechanics, 2012, 33（10）: 2991-2995.
[19]	白根伟．巷道锚杆支护系统托盘参数优化分析[J]．煤炭与化工，2018，41（10）：49－51. BAI Genwei. Analysis on tray parameters optimization of roadway anchor bolt support system[J]. Coal and Chemical Industry, 2018, 41（10）: 49-51.
[20]	郝嘉伟，宁建国．高家梁煤矿2－2中煤层巷道围岩破坏因素敏感性分析研究[J]．煤炭工程，2020，52（12）：113－117. HAO Jiawei, NING Jianguo. Sensitivity analysis of main control factors for surrounding rock failure of 2-2 middle coal seam roadway in Gaojialiang Coal Mine[J]. Coal Engineering, 2020, 52（12）: 113-117.

[1]	CHEN Dongdong. Integral hydraulic fracturing gas drainage technology for directional drilling in gob-side entry under influence of mining[J]. Safety in Coal Mines, 2023, 54(7): 123-129.
[2]	Application of directional long borehole subsection hydraulic fracturing technology in Buertai Coal Mine[J]. Safety in Coal Mines, 2022, 53(4): 94-102.
[3]	LI Yanjun. Long Multi-point Underground Directional Drilling Hydraulic Fracturing Technology for Low-permeability Weak Coalbed[J]. Safety in Coal Mines, 2018, 49(6): 45-48.
[4]	LIU Haibo, SHANG Zhengjie. Hydraulic Punching and Hydraulic Fracturing Coupling Permeability Improving Technique in “Three Soft” Coal Seam[J]. Safety in Coal Mines, 2017, 48(11): 71-75.
[5]	YUAN Guangming, CHEN Yutao, TIAN Weidong, HUANG Wenxiang. Experimental Study on Hydraulic Fracturing Technology in Outburst Coal Seam with Low Permeability in Yutianbao Mine[J]. Safety in Coal Mines, 2017, 48(4): 9-12.
[6]	WANG Qi. Demonstrative Research and Application of Hydraulic Fracturing by Crossing Borehole in Dawan Mine[J]. Safety in Coal Mines, 2016, 47(7): 155-159.
[7]	FU Jiangwei, WANG Gongzhong, TIAN Kunyun, SUN Mingchuang. Study on Safety Guarantee System of Hydraulic Fracturing in Underground Coal Mine[J]. Safety in Coal Mines, 2016, 47(1): 151-154,158.
[8]	LI Baofa, LIANG Wenxu, HU Gaojian, LI Jiangtao. Application of Hydraulic Fracturing Permeability Improvement Technology in Xing'an Coal Mine[J]. Safety in Coal Mines, 2015, 46(7): 159-162.
[9]	ZHANG You-shi. Research Progress and Prospect of Hydraulic Fracturing Technologies in Coal Mine Underground[J]. Safety in Coal Mines, 2012, 43(12): 163-165,172.
[10]	XUE Shi-peng, WEI Li-na, QIAN Wei-hua. Test of Hydraulic Fracture and Its Effect Analysis in Xinzhi Coal Mine[J]. Safety in Coal Mines, 2012, 43(4): 89-91.

Cited By

Cited by

Periodical cited type(12)

1.	张波，刘成，陈建奇，柳雪青，李洋冰，马立涛，杨江浩，乔方. 易碎煤岩制备方法及其孔渗参数测试技术. 非常规油气. 2024(01): 56-61 .
2.	金霏阳，陈学习，高泽帅. 不同变质程度煤体微孔多重分形特征研究. 煤矿安全. 2024(03): 9-17 . 本站查看
3.	王睿，冯宏飞，柳长峰. 压汞法和液氮吸附法在高阶煤孔隙结构表征中的适用性. 石油钻采工艺. 2024(01): 112-118 .
4.	刘尽贤. 渝东南南川地区深层煤层特征与煤层气赋存状态研究. 中国煤炭地质. 2024(06): 18-26 .
5.	王晓婷，袁红，李梅. 不同表面活性剂对煤的润湿性的影响研究. 煤矿安全. 2024(12): 97-105 . 本站查看
6.	任少魁，秦玉金，贾宗凯，苏伟伟. 有效应力对煤体渗透率的影响试验研究. 煤矿安全. 2023(01): 56-61 . 本站查看
7.	肖乾隆，李锦，李伍. 姚桥矿7号煤层垂向孔隙结构及分形特征研究. 中国煤炭地质. 2023(09): 1-13+26 .
8.	卢宏伟，徐宏杰，杨祎超，丁海，祝月，苟博明，戴王杰. 煤储层孔隙结构与甲烷吸附能量变化的非均质性特征. 科学技术与工程. 2023(30): 12817-12826 .
9.	司俊鸿，李潭，胡伟，王乙桥. 采空区多孔介质等效孔隙网络拓扑结构表征算法研究. 华北科技学院学报. 2022(01): 1-6 .
10.	王龙伟. 基于低温液氮吸附法的长平井田3号煤孔隙结构特征研究. 山西煤炭. 2022(03): 65-73+87 .
11.	李照平，袁梅，许石青，张锐，杨萌萌，徐林. 贵州低透无烟煤分形维数表征及其影响因素. 矿业工程研究. 2022(04): 42-48 .
12.	邢敏，吴金随，张辞源，李更川，高嵩. 基于CT扫描技术对煤岩的孔隙结构的提取和研究. 华北科技学院学报. 2021(03): 32-38 .

Other cited types(23)

Get Citation

PDF

XML

Article views (26) PDF downloads (30) Cited by(35)

Turn off MathJax

Article Contents

Abstract

References

Analysis of diffusion effect and influencing factors of anchoring force of arched rock bolt support plate

Abstract

References

Related Articles

Cited by

Periodical cited type(12)

Other cited types(23)

Catalog

Analysis of diffusion effect and influencing factors of anchoring force of arched rock bolt support plate

Abstract

References

Related Articles

Cited by

Periodical cited type(12)

Other cited types(23)

Catalog

Export File

Citation

Format

Content