Excavation technique, the support and bracing technique, and the monitoring in NATM are presented.
对新奥法隧道开挖和支护施工技术、隧道监测进行了介绍。
NATM and shield driven method are two main kinds of underground excavation construction methods in urban metro works.
浅埋暗挖法和盾构法是城市地铁采用暗挖施工的两种主要的暗挖施工方法。
NATM in the underground powerhouse project involves surrounding rock deformation monitoring and back analysis of observed data.
在地下厂房工程中新奥法的实施贯穿了围岩变形监测和监测资料的反馈分析。
The surrounding rock deformation of highway tunnel is an important index to assess its stability and economy of support structure in NATM.
隧道新奥法施工中，常以围岩变形量作为评判围岩稳定性和支护结构经济合理性的重要指标。
Also the principle of NATM (New Austrian Tunneling method) and the method of excavation and shoring in tunnel construction are being given.
文章也介绍了新奥法的原理以及隧洞的开挖和支护方法。
Being a widely used method in tunnel and underground project, the scientific of principle and content of NATM have been comprehensive accepted.
新奥法作为一种目前国内隧道及地下工程普遍推广应用的工程方法，其原理与内容的科学合理性得到工程广泛认同。
The surrounding rock deformation of highway tunnel is an important index to assess its stability and economy effects of support structures in NATM.
隧道新奥法施工中，常以围岩变形量作为评判围岩稳定性和支护结构经济合理性的重要指标。
At last, the paper analyzes the calculation of the shallow cover load part, and states the mechanic concept of rock dynamic properties of the NATM.
最后分析了浅埋段荷载的计算，阐述了新奥法的岩体动态性质的力学概念。
At present, construction methods of metro station include cut and cover, NATM, shield driven method and their combination and changing forms at home and abroad.
目前国内外修建地铁车站的施工方法有明挖法、新奥法、盾构法和这三种方法的组合及变化形式。
He is also experienced in soft ground tunnelling using tunnel Boring Machine and NATM methods carried out in difficult ground conditions and at close proximity to important structures.
经历过使用盾构机进行软土掘进和在困难地层及靠近重要构筑物条件下使用新奥法。
The tunneling monitoring measurment and information feedback technology is one of the major content to construct tunnels using the principle of the new Austrain tunneling method (NATM).
隧道监控量测及信息反馈技术是新奥法（NATM）原理修建隧道的主要内容之一。
Major causes of cracks are contraction deformation in early stage, too complicated and changeable geologic setting, improper section shape of the tunnel, wrong practice of NATM construction, etc.
裂缝产生的原因主要是早期收敛变形，地质条件复杂多变，隧洞断面形状不当，新奥法施工运用欠妥等。
The construction principle of NATM tunnel is mainly analyzed, it excavation procedure and methods are discussed in detail and its construction characteristics and scope of application are set forth.
对新奥法隧道的施工原理进行分析，详细地论述新奥法隧道的开挖过程和方式，阐述其施工特点和适用范围。
The construction principle of NATM tunnel is mainly analyzed, it excavation procedure and methods are discussed in detail and its construction characteristics and scope of application are set forth.
对新奥法隧道的施工原理进行分析，详细地论述新奥法隧道的开挖过程和方式，阐述其施工特点和适用范围。
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