松散土层中浅埋暗挖大跨度平顶直墙隧道施工技术  

The Technique for Construction of Tunnel with Great-span Flat-top & Upright Wall to Undermine and Cover with Lower Solid under Urban Pipelines in Loose Earth Layers

作　　者：章劲松[1] 钱让清[1] 石雷 

机构地区：[1]安徽交通职业技术学院,安徽合肥230051 [2]中铁四局集团第五工程有限公司,江西九江332000

出　　处：《交通标准化》2005年第12期92-95,共4页Communications Standardization

基　　金：安徽省级重点教学研究资助项目(2005102);安徽省级教学研究资助项目(2005360);国家教育部公路与桥梁产学合作研究与实践研究项目(2002-282)

摘　　要：松散围岩中超浅埋暗挖平顶直墙隧道施工,采用大管棚和小导管注浆超前预支护措施,且分多步CD法微台阶开挖施工,在围岩多次受扰动等情况下,成功的完成了大跨度超浅埋暗挖隧道,可有效地保证隧道施工及周边建筑物的安全。In the construction of tunnel with great span flat-top ＆ upright wall to undermine and cover with lower solid under urban pipelines in loose earth layers, it is feasible and successful to apply the large pipe-shelf technology and small tube grouting-advanced-timbering with multi-CD micro-step excavation technique. In condition of wall rock with multi-signs, which ensures the construction＇s process and the safety of buildings.

关 键 词：松散土层 平顶直墙隧道 浅埋暗挖 地表沉降分析 施工 

分 类 号：U455[建筑科学—桥梁与隧道工程]