湿陷性黄土地区小净距隧道支护结构关键技术与应用研究  

Study on Key Technology and Application of Supporting Structure with Small Clear Distance Tunnel in Collapsible Loess Area

作　　者：孙虎平[1] 郭琦[2] 秦亮 Sun Huping;Guo Qi;Qin Liang(Xi'an Municipal Design and Research Institute Co.,Ltd.,710000,China;Department of Civil Engineering,Xi'an University of Architecture and Technology,710055,China;The First Construction Divsion Co.Ltd.of China Railway Tunnel Group,Chongqing 401123,China)

机构地区：[1]西安市政设计研究院有限公司,710000 [2]西安建筑科技大学土木工程学院,710055 [3]中国中铁隧道集团一处有限公司,重庆401123

出　　处：《特种结构》2021年第4期108-112,共5页Special Structures

摘　　要：为解决湿陷性黄土地区小净距隧道支护结构在设计与施工中的关键技术问题,以凤凰山快速路植物园隧道工程为依托,系统分析了隧道支护结构的风险控制点并进行湿陷性黄土地区小净距隧道的施工关键技术及应用研究。研究成果对于受地质、地理、地形严格限制、难以实现较大分离的小净距隧道具有较强的适应性,可为同类型公路隧道支护技术提供工程参考价值。In order to solve the key problems of tunnel supporting structure with small clear distance in collapsible loess area,the risk control points of tunnel supporting structure with small clear distance in collapsible loess area were analyzed systematically.Thereafter,related constructional technique and its application were studied based on the tunnel project of Phoenix Mountain Expressway Botanical Garden.The results have strong adaptability to the tunnel with small clear distance which is restricted strictly by geology,geography and topography and is difficult to achieve large separation.It can provide engineering reference value for the similar highway tunnel support technology.

关 键 词：湿陷性黄土 小净距隧道 支护结构 

分 类 号：U455.7[建筑科学—桥梁与隧道工程]