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Searching Geotechpedia for NATM

<p>With the urban population increasing, conurbation is getting more and more crowed, traffic jam happens everywhere. In this case, utilization of the underground space has become an effective way to undertake this set of problems. Tunnel construction is one ...
Reference: EJGE, Vol. 21 [2016], Bund. 14
<p>In this research, the prospect of tunneling by cut and cover and New Austrian Tunneling Method (NATM) for underground metro rail system in Dhaka city was evaluated. Both conventional analysis and 2D finite element analysis using an elasto-plastic constitutive ...
Reference: Int. J. of GEOMATE, April, 2016, Vol. 10, No. 2 (Sl. No. 20), pp. 1776-1783
<p>The New Austrian Tunnelling Method (NATM) has been often used in the Czech Republic in last two decades. One of the methods, without application in the Czech Republic, is an Italian method called ADECO-RS, which has reached significant use in Italy and ...
Reference: THE CIVIL ENGINEERING JOURNAL 1-2015, Article no. 3, DOI 10.14311/CEJ.2015.01.0003
<p>During the construction of the Bullet Train lines in Japan, several shallow tunnels were excavated in unconsolidated ground using the New Austrian Tunnelling Method (NATM). However, ground and tunnel settlements frequently occurred due to the low stiffness ...
Reference: Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013
<p>Generally, two-pass lining systems are used for transportation tunnels constructed using the New Austrian Tunneling Method (NATM). The initial lining can support a significant portion of the long-term ground loads and thus reduce the design loads on the ...
Reference:
<p>This paper deals with a shotcrete lining with steel sets. The nonlinear analyses of a reinforced shotcrete lining are performed by using fiber beam-column element, which is a forced based element on the Euler-Bernoulli beam theory. The constitutive model ...
Reference: IACSIT International Journal of Engineering and Technology, Vol. 5, No. 6, December 2013
As every construction project is quite different according to the type of construction, 3D-representations on design, estimation, construction, and management also need to be different. While the 3D-approach has been widely applied to building projects, it ...
Reference: 2012 Proceedings of the 29th ISARC, Eindhoven, The Netherlands
<p>Shotcrete is a process where concrete is projected or &ldquo;shot&rdquo; under pressure, using a feeder or a &ldquo;gun&rdquo; onto a surface to form structural shapes including walls, floors, and roofs. The surface can be wood, steel, polystyrene, or any ...
Reference: Pertanika J. Sci. & Technol. 19 (2): 249 – 257 (2011)
In this paper, engineering geological properties of the entrance portal section of Konak&ouml;n&uuml; Tunnel, located on Black Sea Coastal Highway, Turkey, is studied. Moderately weathered basaltic and andesitic tuffs orderly to be driven by the entrance ...
Reference: Scientific Research and Essays Vol. 6(31), pp. 6566-6583, 16 December, 2011
<p>Construction of shallow mined tunnels is frequently undertaken by use of conventional tunneling known as the Sequential Excavation Method (SEM) and sometimes called NATM. In soft ground at shallow cover the method relies on the use of presupport methods ...
Reference: 2011 RETC Conference Proceedings
<p>FEM &ndash; Tunnel is used and design and analyze tunnels. Tunnel is an extension module of the FEM program for analysis of geotechnical problems.</p>
Software by  Comtec Research
<p>TUNA plus is the NATM (New Austrian Tunneling Method) tunnel analysis program which is specially designed to be used for practicing engineers in the fields of tunnel design, construction, or supervising. TUNA plus has fully automated built-in pre, main, ...
<p>NPC-3000 Series NATM Pressure cells are designed to monitor radial and tangential stresses of shotcrete in the construction of tunnels, particularly those using the New Austrian Tunnel Method and other underground works. The cells are constructed from two ...
<p>Sisgeo flexible diaphragm NATM stress cells have been designed to optimise measurements of radial and tangential stresses in shotcrete and concrete tunnel lining.<br><br>The stress cell consists of a pressure pad connected to the transducer by hydraulic ...
<p>The Model 4850 NATM Style Shotcrete Stress Cells are designed for the measurement of tangential (4850-1) and radial (4850-2) stresses in shotcrete tunnel linings. The cells consist of two rectangular steel plates welded together around the periphery with ...
<p>The Model 4850 NATM Style Shotcrete Stress Cells are designed for the measurement of tangential (4850-1) and radial (4850-2) stresses in shotcrete tunnel linings. The cells consist of two rectangular steel plates welded together around the periphery with ...
<p>Tape extensometer is designed to take accurate distance measurements between pairs of reference points permanently installed.<br>Tape extensometer is equipped with stainless steel measuring tape with equally spaced punched holes incorporated in a rugged ...
<p>RST Vibrating Wire NATM Stress Cells are designed to measure stresses in concrete (shotcrete) linings in tunnels and other underground workings. They feature a higher stiffness than Earth Pressure Cells, and are therefore more suitable for stress measurement ...
<p>RST Vibrating Wire NATM Stress Cells are designed to measure stresses in concrete (shotcrete) linings in tunnels and other underground workings</p>