隧道锚杆支护的力学性能分析  被引量:9

Analysis on Mechanical Performance of Tunnel Bolting Support

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作  者:刘健[1] 仲奇 岳秀丽[1] 齐泊良 胡南琦 Liu Jian;Zhong Qi;Yue Xiuli;Qi Boliang;Hu Nanqi(School of Civil Engineering,Shandong University,Jinan Shandong 250061,China)

机构地区:[1]山东大学土建与水利学院,山东济南250061

出  处:《铁道建筑技术》2017年第9期19-22,32,共5页Railway Construction Technology

基  金:国家自然科学基金资助项目(41172267)

摘  要:隧道工程中,锚杆支护是常见的支护类型。目前锚杆的支护理论发展相对完善,但适用条件尚有不明确的地方。本文在总结锚杆支护机理的基础上,讨论了锚杆自身尺寸对支护效果的影响。文中定量分析锚杆锚固段长度的确定方法,着重研究预应力对锚固段的影响;进而,定性分析锚杆半径对支护效果的影响,阐释锚杆结构支护过程中的力学性能。In tunnel engineering,bolting is a common type of support.At present,the theory of bolting is relatively per-fect,but there are still some uncertainties.On the basis of summarizing the supporting mechanism of bolting,the influence of the size of the bolting on the supporting effect was discussed in this paper.Also the method of how to determine the length of anchorage section was analyzed quantitatively,and the effect of prestress was studied seriously.Moreover,the in-fluence of the radius of bolting on the supporting effect was analyzed qualitatively,and the mechanical properties of bolting structure were explained.

关 键 词:锚杆支护 锚固段长度 预应力 锚杆半径 

分 类 号:U451[建筑科学—桥梁与隧道工程] U455.71[交通运输工程—道路与铁道工程]

 

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