六盘山隧道二衬开裂掉块整治及加固方案  

Treatment and Reinforcement Scheme of Two Lining Cracks in Liupan Mountain Tunnel

作　　者：刘子阳 程康[1] LIU Zi-yang CHENG Kang(School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, Chin)

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《兰州工业学院学报》2017年第5期14-17,共4页Journal of Lanzhou Institute of Technology

摘　　要：对铁路隧道在长期运营过程中,由于二次衬砌厚度、强度不够导致承载力不足,安全系数不满足规范要求,容易发生衬砌的开裂、掉块等病害的问题,依托工程实例,对钢拱架间焊接钢板灌注混凝土加固隧道衬砌进行分析研究,结果表明,钢拱架间焊接钢板灌筑混凝土可增强原结构的整体性和稳定性,改善受力特性,有效地治理衬砌裂损掉块现象,是一种高效新型的加固结构.In the long-term operation of railway tunnel,due to the lack of bearing capacity of the two lining thickness and strength,the safety factor does not meet the requirements of the specification.Based on the engineering examples,the steel arch between welded steel plate concrete is analyzed.The results show that the reinforcement of tunnel lining with steel arch between welded steel plate concrete pouring can enhance the original structural integrity and stability,improve the stress characteristics,fix the problem of broken lining.

关 键 词：病害整治 加固隧道衬砌 六盘山隧道 

分 类 号：U458.3[建筑科学—桥梁与隧道工程]