Dynamic mechanical characteristics and engineering application of high elongation anchor cable

FU Yukai; WU Yongzheng; ZHOU Penghe; SUN Zhuoyue; LI Junchen

doi:10.12438/cst.2023-0093

Volume 52 Issue 2

Feb. 2024

Turn off MathJax

Article Contents

Abstract

References

COAL SCIENCE AND TECHNOLOGY > 2024 > 52(2): 49-62. > DOI: 10.12438/cst.2023-0093

FU Yukai，WU Yongzheng，ZHOU Penghe，et al. Dynamic mechanical characteristics and engineering application of high elongation anchor cable[J]. Coal Science and Technology，2024，52（2）：49−62. DOI: 10.12438/cst.2023-0093

Citation:

PDF (5495 KB)

Dynamic mechanical characteristics and engineering application of high elongation anchor cable

FU Yukai^{1, 2, 3, 4,},
WU Yongzheng^{1, 2, 3, 4},
ZHOU Penghe^{1, 2, 3, 4},
SUN Zhuoyue^{1, 2, 3, 4},
LI Junchen^{1, 2, 3, 4}

1.
CCTEG Coal Mining Research Institute, Beijing 100013, China
2.
Coal Mining and Designing Department, Tiandi Science and Technology Co., Ltd., Beijing 100013, China
3.
Coal Mining and Designing Branch, China Coal Research Institute, Beijing 100013, China
4.
State Key Laboratory of Intelligent Coal Mining and Strata Control, Beijing 100013, China

More Information

Received Date: January 04, 2023
Accepted Date: February 24, 2023
Available Online: January 23, 2024

Graphical Abstract

Abstract

Abstract

The traditional anchor cable has low elongation, poor impact resistance, and is prone to brittle fracture failure under strong impact load, leading to roof fall, rock burst accidents and other problems in the roadway. Based on this, the anchor cable with high strength, high elongation and high impact resistance was independently developed. The static and dynamic mechanical properties of the anchor cable with high elongation were analyzed by laboratory tests, theoretical analysis and field tests. The differences between high elongation anchor cable and ordinary anchor cable in chemical composition, metallographic structure and inclusion are also studied. Finally, the energy absorption principle of high elongation anchor cable support is proposed, and the high elongation anchor cable is applied in the field. The results show that: Under static load, the tensile strength of high elongation anchor cable is 1790 MPa, the total elongation of maximum force is 8.1%, which is 1.61−2.25 times of that of ordinary anchor cable. Under dynamic load, the steel wire of high elongation anchor cable is not easy to disperse, and the breaking load is basically the same as that of ordinary anchor cable. The elongation after breaking is 1.82 times, 1.68 times and 1.52 times of that of anchor cable A, B and C, respectively. The energy absorption per unit length is 2.54 times, 1.99 times and 1.70 times of that of anchor cable A, B and C, respectively. The high elongation anchor cable has stronger plastic deformation capacity and higher energy absorption capacity. The high elongation anchor cable improves the plastic deformation ability of the steel wire by controlling the content of harmful and beneficial chemical elements, refining the metallographic structure and reducing the size and quantity of inclusions in the smelting and rolling process, thereby improving the overall impact resistance of the anchor cable. After the high elongation anchor cable has withstood many large energy shocks in the field application process, the roadway support effect is good, and the high elongation anchor cable has not broken, effectively controlling the roadway impact damage.
- rock burst,
- deep roadway,
- bolt support,
- drop hammer,
- high elongation anchor cable

FullText(HTML)

References (29)

References

[1]	康红普,吴拥政,何杰,等. 深部冲击地压巷道锚杆支护作用研究与实践[J]. 煤炭学报,2015,40(10):2225−2233. KANG Hongpu,WU Yongzheng,HE Jie,et. al. Rock bolting performance and field practice in deep roadway with rock burst[J]. Journal of China Coal Society,2015,40(10):2225−2233.
[2]	吴拥政,付玉凯,何杰,等. 深部冲击地压巷道“卸压–支护–防护”协同防控原理与技术[J]. 煤炭学报,2021,46(1):132−144. WU Yongzheng,FU Yukai,HE Jie,et al. Principle and technology of “pressure relief-support-protection” collaborative prevention and control in deep rock burst roadway[J]. Journal of China Coal Society,2021,46(1):132−144.
[3]	康红普,姜鹏飞,冯彦军,等. 煤矿巷道围岩卸压技术及应用[J]. 煤炭科学技术,2022,50(6):1−15. KANG Hongpu, JIANG Pengfei, FENG Yanjun,et al. Destressing technology for rock around coal mine roadways and its applications[J]. Coal Science and Technology,2022,50(6):1−15.
[4]	何满潮,谢和平,彭苏萍,等. 深部开采岩体力学研究[J]. 岩石力学与工程学报,2005,24(16):2803−2813. HE Manchao,XIE Heping,PENG Suping,et. al. Study on rock mechanics in deep mining engineering[J]. Chinese Journal of Rock Mechanics and Engineering,2005,24(16):2803−2813.
[5]	吴拥政,何杰,王洋. 特大断面冲击地压巷道破坏机理及控制技术研究[J]. 煤炭科学技术,2018,46(1):61−67. WU Yongzheng,HE Jie,WANG Yang. Study on failure mechanism and control technology of large cross section rockburst roadway[J]. Coal Science and Technology,2018,46(1):61−67.
[6]	康红普. 我国煤矿巷道围岩控制技术发展70年及展望[J]. 岩石力学与工程学报,2021,40(1):1−30. KANG Hongpu. Seventy years development and prospects of strata control technologies for coal mine roadways in China[J]. Chinese Journal of Rock Mechanics and Engineering,2021,40(1):1−30.
[7]	王琦,何满潮,许硕,等. 恒阻吸能锚杆力学特性与工程应用[J]. 煤炭学报,2022,47(4):1490−1500. WANG Qi,HE Manchao,XU Shuo,et al. Mechanical properties and engineering application of constant resistance energy absorbing bolt[J]. Journal of China Coal Society,2022,47( 4):1490−1500.
[8]	吴拥政,付玉凯,郝登云. 加锚岩体侧向冲击载荷下动力响应规律研究[J]. 岩石力学与工程学报,2020,39(10):2014−2024. WU Yongzheng,FU Yukai,HAO Dengyun. Study on dynamic response law of anchored rock mass under lateral impact loads[J]. Chinese Journal of Rock Mechanics and Engineering,2020,39(10):2014−2024.
[9]	付玉凯,鞠文君,吴拥政,等. 高冲击韧性锚杆吸能减冲原理及应用研究[J]. 煤炭科学技术,2019,47(11):68−75. FU Yukai,JU Wenjun,WU Yongzheng,et al. Study on principle application of energy absorption and bump reduction of high impact toughness rock bolt[J]. Coal Science and Technology,2019,47(11):68−75.
[10]	何满潮,郭志飚. 恒阻大变形锚杆力学特性及其工程应用[J]. 岩石力学与工程学报,2014,33(7):1297−1308. HE Manchao,GUO Zhibiao. Mechanical property and engineering application of anchor bolt with constant resistance and large deformation[J]. Chinese Journal of Rock Mechanics and Engineering,2014,33(7):1297−1308.
[11]	康红普. 煤矿巷道支护与加固材料的发展及展望[J]. 煤炭科学技术,2021,49(4):1−11. KANG Hongpu. Development and prospects of support and reinforcement materials for coal mine roadways[J]. Coal Science and Technology,2021,49(4):1−11.
[12]	CAI M,KAISER P K. Rockburst support reference book volume I:rockburst phenomenon and support characteristics[M]. Sudbury:Laurentian University,2018:284–285.
[13]	SIMSER B,JOUGHIN W C,ORTLEPP W D. The performance of Brunswick Mine's rockburst support system during a severe seismic episode[J]. Journal South African Institute of Mining and Metallurgy,2002,102(4):217−223.
[14]	赵兴东,朱乾坤,牛佳安,等. 一种新型J释能锚杆力学作用机制及其动力冲击实验研究[J]. 岩石力学与工程学报,2020,39(1):13−21. ZHAO Xingdong,ZHU Qiankun,NIU Jiaan,et al. Mechanical mechanism analyses and dynamic impact experimental tests of a kind of novel J energy-releasing bolts[J]. Chinese Journal of Rock Mechanics and Engineering,2020,39(1):13−21.
[15]	HYETT A J,BAWDEN W F,HEDRICK N,et al. A laboratory evaluation of the 25 mm garford bulb anchor for cable bolt reinforcement[J]. Cim Bulletin,1995,88(992):54−59.
[16]	OZBAY U,NEUGEBAUER E. In-situ pull testing of a yieldable rock bolt,ROOFEX[J]. Controlling Seismic Hazard and Sustainable Development of Deep Mines,2009,2:1081−1090.
[17]	江贝,王琦,魏华勇,等. 地下工程吸能锚杆研究现状与展望[J]. 矿业科学学报,2021,6(5):569−580. JIANG Bei,WANG Qi,WEI Huayong,et al. Recent development and prospects of energy-absorbing bolt in underground engineering[J]. Journal of Mining Science and Technology,2021,6(5):569−580.
[18]	康红普. 我国煤矿巷道锚杆支护技术发展60年及展望[J]. 中国矿业大学学报,2016,45(6):1071−1081. KANG Hongpu. Sixty years development and prospects of rock bolting technology for underground coal mine roadways in China[J]. Journal of China University of Ming & Technology,2016,45(6):1071−1081.
[19]	吴拥政,康红普,丁吉,等. 超高强热处理锚杆开发与实践[J]. 煤炭学报,2015,40(2):308−313. WU Yongzheng,KANG Hongpu,DING Ji,et al. Development and application of ultrahigh-heat processed rock bolts[J]. Journal of China Coal Society,2015,40(2):308−313.
[20]	付玉凯,吴拥政,鞠文君,等. 锚杆侧向冲击载荷下动力响应及抗冲击机理[J]. 煤炭学报,2016,41(7):1651−1658. FU Yukai,WU Yongzheng,JU Wenjun,et al. Response and impact mechanism of rock bolt under lateral dynamic impact load[J]. Journal of China Coal Society,2016,41(7):1651−1658.
[21]	康红普,杨景贺,姜鹏飞. 锚索力学性能测试与分析[J]. 煤炭科学技术,2015,43(6):29−33. KANG Hongpu,YANG Jinghe,JIANG Pengfei. Tests and analysis on mechanical properties for cable bolts[J]. Coal Science and Technology,2015,43(6):29−33.
[22]	付玉凯,鞠文君,吴拥政,等. 深部回采巷道锚杆(索)防冲吸能机理与实践[J]. 煤炭学报,2020,45(S2):609−617. FU Yukai,JU Wenjun,WU Yongzheng,et al. Mechanism and practice of energy absorption and anti-impact of bolt(cable) in deep mining roadway[J]. Journal of China Coal Society,2020,45(S2):609−617.
[23]	焦建康,鞠文君,吴拥政,等. 动载冲击地压巷道围岩稳定性多层次控制技术[J]. 煤炭科学技术,2019,47(12):10−17. JIAO Jiankang,JU Wenjun,WU Yongzheng,et al. Multi-layer control technologies for surrounding rock stability of dynamic-loading rock burst roadway[J]. Coal Science and Technology,2019,47(12):10−17.
[24]	何满潮,王炯,孙晓明,等. 负泊松比效应锚索的力学特性及其在冲击地压防治中的应用研究[J]. 煤炭学报,2014,39(2):214−221. HE Manchao,WANG Jiong,SUN Xiaoming,et al. Mechanics characteristics and applications of prevention and control rock bursts of the negative poisson’s ratio effect anchor[J]. Journal of China Coal Society,2014,39(2):214−221.
[25]	吴拥政,付玉凯,张月生,张月祥,刘立军,王淑华,等. 一种钢绞线及其制法和应用[P]. 中国:CN111112353B,2021–10–01.
[26]	张振全,张明博. 预应力钢绞线SWRH82B锥形断裂机理及优化研究[J]. 炼钢,2021,37(3):74−80. ZHANG Zhenquan,ZHANG Mingbo. Study on mechanism and optimization of cone fracture of SWRH82B prestressed steel strand[J]. Steel Making,2021,37(3):74−80.
[27]	王新华. 钢铁冶金:炼钢学[M]. 北京:高等教育出版社,2007.
[28]	康红普. 煤巷锚杆支护成套技术研究与实践[J]. 岩石力学与工程学报,2005,24(21):3959−3964. KANG Hongpu. Study and application of complete rock bolting technology to coal roadway[J]. Chinese Journal of Rock Mechanics and Engineering,2005,24(21):3959−3964.
[29]	康红普,徐刚,王彪谋,等. 我国煤炭开采与岩层控制技术发展40 a及展望[J]. 采矿与岩层控制工程学报,2019,1(1):013501. KANG Hongpu,XU Gang,WANG Biaomou,et al. Forty years development and prospects of underground coal mining and strata control technologies in China[J]. Journal of Mining and Strata Control Engineering,2019,1(1):013501.

Cited By

Cited by

Periodical cited type(3)

1.	张百颂. 高突矿井下行揭煤钻孔施工工艺及瓦斯抽采效果研究与应用. 煤炭与化工. 2025(05): 118-123 .
2.	兰安畅，袁欣鹏，付智博. 矿井瓦斯智能化抽采发展现状. 科技和产业. 2024(18): 240-245 .
3.	姬静伟. 煤层瓦斯抽采有效半径分析. 山东煤炭科技. 2024(12): 60-65 .

Other cited types(1)

Get Citation

PDF

XML

Article views (179) PDF downloads (70) Cited by(4)

Dynamic mechanical characteristics and engineering application of high elongation anchor cable

Abstract

References

Cited by

Periodical cited type(3)

Other cited types(1)

Catalog

Related

Dynamic mechanical characteristics and engineering application of high elongation anchor cable

Abstract

References

Cited by

Periodical cited type(3)

Other cited types(1)

Catalog

Related

Export File

Citation

Format

Content