隧道系统锚杆研究现状与发展方向  

Research status and development direction of tunnel system bolt

作　　者：赵东平[1,2] 王卢伟 喻渝[3] 刘建友 Zhao Dongping;Wang Luwei;Yu Yu;Liu Jianyou(Key Laboratory of Transportation Tunnel Engineering of the Ministry of Education,Southwest Jiaotong University,Chengdu 610031,China;School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China;Railway Engineering Consulting Group Co.,Ltd.,Beijing 100055)

机构地区：[1]西南交通大学交通隧道工程教育部重点实验室,四川成都610031 [2]西南交通大学土木工程学院,四川成都610031 [3]中铁二院工程集团有限责任公司,四川成都610031 [4]中铁工程设计咨询集团有限公司,北京100055

出　　处：《土木工程学报》2020年第8期116-128,共13页China Civil Engineering Journal

基　　金：中央高校基础科学研究业务费专项基金(2682019CX03)。

摘　　要：对近40年以来国内外公开发表的隧道锚杆研究论文进行统计和分析,阐述隧道系统锚杆国内外研究现状,揭示隧道系统锚杆研究的薄弱环节。研究表明,隧道系统锚杆的研究主要集中在锚杆作用效果、锚杆计算理论、锚杆设计参数和新型锚杆研发等方面。部分研究表明黄土隧道拱部系统锚杆作用效果不明显,目前国内工程界及学术界对隧道系统锚杆作用效果的认识尚不统一;在全长黏结型锚杆的力学模型及计算理论方面研究成果较多,但基于Mindlin位移解推导的锚杆轴力解析解未考虑中性点的影响;关于隧道系统锚杆的设计及计算理论研究甚少,个别学者提出的经验公式及解析公式中的输入参数大多不易获取,因此在实际工程中仍难以应用;在隧道系统锚杆的设计方面,针对临界锚固长度有一定研究,但是在系统锚杆的布置方式及系统锚杆与围岩的匹配性方面尚无研究成果,隧道系统锚杆设计主要采用经验类比法。从力学机理及理论计算方法上对隧道系统锚杆与围岩联合作用机理及承载拱的承载原理进行深入研究,同时开展新型材料锚杆及新型构造锚杆的研发是未来的发展方向。The statistics and analysis were carried out for research papers on tunnel anchor bolts published in the past 40 years,the research status of tunnel anchor bolts at home and abroad was discussed,and the weak links in the research of tunnel system bolt were revealed.The analysis shows that the research of tunnel anchor bolts mainly focuses on the effect of anchor bolts,the calculation theory of anchor bolt,the design parameters of anchor bolts and the development of new anchor bolts.Some researches indicate that:at the crow on the loess tunnel,the effect of system bolt is not obvious,and nowadays the understanding of domestic engineers and scholars on the effect of tunnel system bolt is still not unified;although many research results on the mechanical model and calculation theory of the full-length bonded anchor bolts can be found,the analytical solution for the axial force of the anchor bolt derived from the Mindlin displacement solution does not take into account the influence of the neutral point;researches on the design and calculation theory in tunnel system bolt are few,and additionally the input parameters of empirical formulas and analytical formulas proposed by some scholars are mostly difficult to obtain,so it is still difficult to apply them to practical tunnel projects.In the design of tunnel system bolt,some researches on the critical anchorage length are available,but research results on the arrangement of tunnel system bolt and their matching with surrounding rock are still absent.As a result,for the design of tunnel system bolt,it is generally to adopt the empirical analogy method.The design method of the tunnel system bolt shall be further explored and the system bolt of new material and new configuration shall be developed in the future.

关 键 词：隧道 系统锚杆 研究现状 发展方向 

分 类 号：TU398.9[建筑科学—结构工程]