马槽仔隧道进口(大庆端)洞口滑坡处治  

Treatment of Landslide at Entrance(Daqing End)of Machaozai Tunnel

作　　者：张成良 陈刚 李江平 梁桥[2] ZHANG Cheng-liang;CHEN Gang;LI Jiang-ping;LIANG Qiao(Jiangsu Transportation Research Institute Group Co.,Ltd.,Nanjing 210017,China;Depart School of Architectural truction Engineering,Hunan Institute of Engineering,Xiangtan 411104,China)

机构地区：[1]苏交科集团股份有限公司,南京210017 [2]湖南工程学院建筑工程学院,湘潭411104

出　　处：《湖南工程学院学报（自然科学版）》2021年第2期88-94,共7页Journal of Hunan Institute of Engineering(Natural Science Edition)

摘　　要：江西省高速公路建设近几年得到快速发展,隧道建设一直是山区高速建设的重点、难点.受降雨、地形地貌、地质条件、工期、设计、施工等影响,隧道洞口施工时洞口土体易受扰动,造成地表产生裂缝,山体容易失稳,导致洞口滑坡及坍塌.本文通过分析江西马槽仔隧道洞口多方面因素,对隧道洞口产生滑坡原因进行了分析计算,根据计算结果对隧道洞口进洞方案进行调整,采取一系列滑坡处治措施,对隧道洞口施工过程中出现的边坡病害加以控制,降低隧道洞口施工风险,保证了隧道洞口运营期的安全.Highway construction in Jiangxi Province has been in the stage of rapid development in recent years,and tunnel construction has always been the focus and difficulty of high-speed construction in moun-tainous areas.Affected by rainfall,topography,geological conditions,construction period,design and con-struction,tunnel portal construction is easy to cause soil disturbance at the entrance of tunnel,resulting in cracks on the surface,instability of the mountain and landslide and collapse of the portal.In this paper,com-bined with the comprehensive factors at the entrance of Machaozi Tunnel in Jiangxi Province,the causes of landslide during tunnel entrance are calculated and analyzed,The scheme of tunnel entrance is readjusted,and a series of landslide treatment measures are taken to control the slope diseases in the construction process of tunnel portal,reduce the risk of tunnel entrance construction,and ensure the safety of tunnel portal con-struction and operation period.

关 键 词：隧道洞口 失稳 滑坡处治 裂缝 

分 类 号：U456.33[建筑科学—桥梁与隧道工程]