基于新奥法隧道围岩变形动态监测技术及应用研究  

Deformation Dynamic Monitoring and Application of Tunnel Surrounding Rock Based on New Austrian Tunneling Method

作　　者：马树宝[1] 陈沅江[1] 张悦[2] 汪发松[1] 

机构地区：[1]中南大学资源与安全工程学院,长沙410083 [2]河南理工大学安全科学与工程学院,河南焦作454000

出　　处：《工业安全与环保》2010年第9期29-31,34,共4页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金项目(No.50774093)

摘　　要：结合隧道施工的复杂性,依据新奥法的核心理念,提出了基于新奥法隧道围岩变形动态监测方法。依据重庆地铁隧道某车站的工程实践,结合传统监控量测方法的程序,对动态内容进行了介绍。运用数据分析软件,对水平收敛位移作回归模型分析,得出围岩变形的一般模型。结果表明,基于新奥法隧道围岩变形动态监测方法,通过自身方案的不断改进,不仅可以有效地为设计、施工与支护方案的改进提供依据,而且可以用于优化隧道二次衬砌时间。为围岩分类、大变形预测、岩爆预测、岩石松动圈预测及反分析等提供依据。Combined with the complexity of tunnel construction,and according to the core philosophy of New Austrian Tunneling Method（NATM）,the dynamic monitoring based on NATM is put forward.Based on the engineering practice of the Chongqing metro station and in accordance with the programs of traditional NATM,the goal,meaning,context and program are studied.Using the software data analysis, the displacement of horizontal constringency is analyzed by regression model,and the model of surrounding rock is given.The application demonstrates that dynamic monitoring based on NATM not only can provide the bases for improving the design,construction and bracing,but also confirm the time of secondary lining.Dependable data is provided in surrounding rock class,large deformation,rock bust forecast and broken rock zone as well as back-analysis.

关 键 词：新奥法 围岩变形 监控量测 回归分析 松动圈 

分 类 号：U456.3[建筑科学—桥梁与隧道工程]