| 不同锚杆参数对锚固系统稳定性影响研究 |
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| 引用本文： | 卢宏亮. 不同锚杆参数对锚固系统稳定性影响研究[J]. 中州煤炭, 2019, 0(12): 158-161. DOI: 10.19389/j.cnki.1003-0506.2019.12.033 |
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| 作者姓名： | 卢宏亮 |
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| 作者单位： | （霍州煤电集团丰峪煤业有限责任公司,山西 霍州 031400） |
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| 摘 要： | 为了研究不同锚杆参数对锚固系统稳定性的影响,采用理论分析和数值模拟相结合的方法,理论分析了围岩协同锚固系统力学模型和锚杆锚固段的“大托盘”效应,数值模拟了不同锚杆长度、锚杆密度和锚杆预紧力下群锚杆最小主应力分布,分析了锚杆围岩形成的挤压带范围,得到了相关参数对锚固系统稳定性的影响。研究为巷道支护提供了理论指导。
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| 关 键 词： | 锚杆参数 锚固系统 稳定性影响 “大托盘”效应 锚杆长度 锚杆密度 锚杆预紧力 |
Study on influence of different bolt parameters on stability of anchorage system |
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| Lu Hongliang. Study on influence of different bolt parameters on stability of anchorage system[J]. Zhongzhou Coal, 2019, 0(12): 158-161. DOI: 10.19389/j.cnki.1003-0506.2019.12.033 |
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| Authors: | Lu Hongliang |
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| Affiliation: | （Fengyu Coal Industry Co.,Ltd.,Huozhou Coal and Electricity Group,Huozhou 031400,China） |
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| Abstract: | In order to study the influence of different bolt parameters on the stability of the anchoring system,the combination of theoretical analysis and numerical simulation is used to theoretically analyze the mechanical model of the surrounding rock cooperative anchoring system and the big pallet effect of the bolt anchoring section,the minimum principal stress distribution of group anchors under different bolt lengths,bolt density and bolt preloading force is analyzed,the range of compression zone formed by surrounding rock of anchor is analyzed,and the influence of relevant parameters on the stability of anchoring system is obtained.The study provides theoretical guidance for roadway support. |
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| Keywords: | anchor parameters anchoring system stability effect large pallet effect anchor length bolt density bolt preload |
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