陆路交通隧道-滑坡平行体系模型建立与试验验证  

Land Traffic Tunnel-Landslide Parallel System Model Establishment and Experimental Validation

作　　者：牌立芳 赖天文[1] 吴红刚 PAI Lifang;LAI Tianwen;WU Honggang(School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou Gansu 730000,China;Northwest Research Institute Co.Ltd.of C.R.E.C,Lanzhou Gansu 730000,China;China Iron Landslide Engineering Laboratory,Lanzhou Gansu 730000,China;Provincial Laboratory of Western Environmental Geotechnical Soil and Site Remediation Technology,Lanzhou Gansu 730000,China)

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730000 [2]中国中铁滑坡工程实验室,甘肃兰州730000 [3]中铁西北科学研究院有限公司,甘肃兰州730000 [4]西部环境岩土与场地修复技术省级实验室,甘肃兰州730000

出　　处：《铁道建筑》2018年第12期64-68,共5页Railway Engineering

基　　金：中铁科学研究院有限公司科研项目(2017-KJ008-Z008-XB)

摘　　要：基于武罐(武都—罐子沟)高速公路圆台子隧道、宝兰客专洪亮营隧道典型工点,从中抽象出试验模型,定性分析隧道-滑坡平行体系单滑面情况下隧道纵向平行穿越滑坡体时,在隧道与滑移面相交区段坡体蠕滑对隧道的作用机制及隧道变形破坏模式。通过模型试验建立了隧道-滑坡平行体系的力学简化三维图示。研究结果表明:滑坡推力的影响随着隧道距离滑带的远近而变化,在滑带处滑坡推力影响最为严重,隧道变形明显。所建立的力学简化模型对隧道-滑坡平行体系的进一步研究具有借鉴意义。Based on the typical work points of the Yangpoli tunnel,Yuantaizi tunnel and Baolang passenger dedicated line Hongliangying tunnel of the Wudu-Guanzigou expressway,the experimental model was abstracted.Under the condition of single sliding surface of tunnel-landslide parallel system the action mechanism of slope creep on the tunnel in the section where the tunnel intersects the sliding surface and the deformation and failure mode of the tunnel was analyzed qualitatively when the tunnel passes through the landslide in longitudinal parallel.A simplif ied three-dimensional mechanical illustration of tunnel-landslide parallel system was established by model test.The results show that the inf luence of landslide thrust varies with the distance between tunnel and sliding zone,the landslide thrust has the most serious impact in sliding zone,and the tunnel deformation is obvious.The simplif ied mechanical model established in this paper could be a reference for the further study of tunnel-landslide parallel system.

关 键 词：高速公路 隧道滑坡平行体系 力学模型 模型试验 三维图示 滑坡推力 滑带 

分 类 号：U45[建筑科学—桥梁与隧道工程]