Study on Damage Characteristics of Anchor Cable Anchorage Body Under Different Vibration Loads
DOI:
https://doi.org/10.54097/bdrttc11Keywords:
Cyclic loading; vibration load; fissure evolution; force chain; orthogonal parameters.Abstract
In order to explore the damage evolution law of anchorage body under cyclic loading, based on numerical simulation, the mechanical behavior and damage evolution mechanism of anchorage body under different vibration loads are systematically analyzed. The evolution law of fracture field, displacement field, velocity field and force chain is studied. The results show that the crack field evolution of anchorage body can be divided into four stages: crack initiation, crack propagation, crack stable increase and crack coalescence. As the vibration load increases, the number of cracks increases significantly. The increase of the vibration load significantly accelerates the debonding rate of the anchor cable and promotes the damage process of the anchorage body. In addition, the evolution laws of fracture field, displacement field, velocity field and force chain show that the increase of vibration load accelerates the penetration of cracks, which aggravates the failure process of anchorage system. The shear stress is transmitted from shallow to deep, and the shear stress of the first interface is higher than that of the second interface. With the increase of the vibration load, the fracture range of the force chain in the anchorage body gradually expands. Specifically, under the action of 70%F vibration load and 1Hz frequency, the number of cracks is the largest and the degree of damage is the most serious. Under the action of 30%F vibration load and 30Hz frequency, the cracks are mainly concentrated in the anchoring agent ring, and the damage degree of the matrix is lighter. The research results reveal the difference law of crack propagation of anchor cable anchorage structure under different vibration load conditions, which provides a theoretical basis for the optimal design of anchorage system.
Downloads
References
[1] Kang Hongpu, Wu Yongzheng, He Jie, et al. Research and practice of bolt support in deep rock burst roadway [J]. Coal Journal. 2015 : 2225-2233.
[2] Ning Jianguo, Li Zhuang, Wang Jun, et al. Experimental study on mechanical response of anchored solid under dynamic tensile stress wave [J]. Journal of Mining and Safety Engineering, 2022,39 (04) : 731-740.
[3] Chang Jucai, Qi Chao, Yin Zhiqiang, et al. Characteristics of stress wave propagation and damage of fully anchored anchor under dynamic load [J]. Journal of China Coal Society. 2023: 1996-2007.
[4] Chang Jucai, Qi Chao, Yin Zhiqiang, et al. Study on mechanical response characteristics of end-anchored solid under dynamic load [J].Geotechnical mechanics. 2022 : 3294-3304.
[5] ZHANG Nong, WANG Peng, KAN Jiaguang, et al. Experimental study on progressive failure of anchored structures under high-frequency low-energy impact disturbance [J]. Journal of China Coal Society, 2024, 49(01) : 309-319.
[6] Wu Yongzheng, Fu Yukai, Hao Dengyun. Study on dynamic response law of anchored rock mass under lateral impact load [J].Journal of Rock Mechanics and Engineering, 2020,39 ( 10 ) : 2014-2024.
[7] Wu Qiuhong, Zhao Fujun, Wang Shiming, etc. Mechanical response characteristics of full-length bonded anchor under dynamic disturbance [J]. Geotechnical mechanics, 2019,40 ( 03 ) : 942-950 + 1004.
[8] Chen Miao, Xiao Can, Wang Xiaoshan, et al. Study on mechanical properties and failure mechanism of hole-containing anchorage under dynamic load [J].Journal of Rock Mechanics and Engineering, 1-17 [ 2024-12-17 ].
[9] Li Qinghai, Zhang Haoran, Zhou Jian, et al. Study on the mechanism of pre-stressed anchoring and anti-scouring in deep roadway [J].Journal of Mining and Strata Control Engineering, 1-12 [ 2024-12-17 ].
[10] Wang Wenjie, Liu Chao, Huang Yongxiang and so on. Analysis of stress and failure characteristics of full-length mortar anchored FRP bolt under dynamic and static loads [J].Geotechnical mechanics : 1-12 [ 2023-11-01 ].
[11] Wang Aiwen, Pan Yishan, Zhao Baoyou. Numerical analysis of impact failure mechanism of bolt-surrounding rock structure under impact load [J]. Seismological Engineering, 2017,39 ( 03 ) : 417-424.
[12] Zhan Yubao, You Chun 'an, Lu Xingli, etc. Numerical simulation analysis of stress distribution law of anchored solid [C]. 2007 Symposium on hot issues of rock and geotechnical mechanics in ground and underground engineering. 2007.
[13] Xue Yadong, Zhang Shiping, Kang Tianhe. Numerical analysis of dynamic response of bolt in mining roadway [J]. Journal of Rock Mechanics and Engineering, 2003 ( 11 ) : 1903-1906.
[14] Zhu Wancheng, Zuo Yujun, Shang Shiming, et al. Numerical simulation of instability and fracture of deep roadway triggered by dynamic disturbance [J]. Journal of Rock Mechanics and Engineering, 2007, 26 ( 5 ) : 7.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Academic Journal of Science and Technology

This work is licensed under a Creative Commons Attribution 4.0 International License.