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Mechanized Tunneling

Mechanized tunneling (as opposed to conventional techniques) are all the tunneling techniques in which excavation is performed mechanically by means of teeth, picks or disks. (ITA – AITES)

Mechanized tunneling is performed with a tunnel boring machine TBM and they can bore through hard rock to soft ground.

In this section of Geotechpedia publications on mechanized tunneling can be found, covering a wide range of issues and case studies.

Total Items found:
<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>With widespread increasing applications of mechanized tunneling in almost all ground conditions, prediction of tunnel boring machine (TBM) performance is required for time planning, cost control and choice of excavation method in order to make tunneling ...
Reference: 11th Iranian and 2nd Regional Tunnelling Conference “Tunnels and the Future” 2-5 November 2015
<p>Earth Pressure Balance (EPB) tunneling in mixed ground conditions is a challenging prospect, as it often includes excavation in boulder fields, sections of rock, and/or sticky clay, under high water pressure or changing water pressure. Maintaining a rapid ...
Reference: North American Tunneling Conference 2014
<p>TBM tunneling is an ever-increasing prospect for underground construction, and with each new tunnel bored there are unknown elements. When boring through the earth, even extensive Geotechnical Baseline Reports can miss fault lines, water inflows, squeezing ...
Reference: North American Tunneling Conference 2014
<p>According to the features of tunnel drilling machine that are not easily removable after start to work, and geological parameters that makes these devices functions be different in different contexts. On the other hand, causes to detect the excavation team ...
Reference: Indian J.Sci.Res. 9 (1): 137-145, 2014
<p>The San Francisco Central Subway project is a challenging modern example of urban tunneling in limited space conditions. This paper discusses the project challenges and solutions at the Central Subway project, with a focus on TBM and continuous conveyor ...
Reference: North American Tunneling Conference 2014
In this study, a BIM model of shield tunnel was established to demonstrate the integration of 3D CAD with inspection records. A MRT structural maintenance database, which includes structural deterioration types, inspection records, and repair methods, was ...
Reference: 2012 Proceedings of the 29th ISARC, Eindhoven, The Netherlands
<p>Natural gases are a potential hazard in construction of underground excavations. Encountering with gases usually result in costly delays. Gases occur in a wide variety of geological conditions, so predict the occurrence of potentially hazardous concentrations ...
Reference: First Asian and 9th Iranian Tunnelling Symposium November 2011 Tehran - Iran
From the tunnelling perspective, the Himalayas arguably pose the most challenging ground conditions almost anywhere in the world. One of the prime reasons for this is that they are the youngest of the mountain chains. They are demonstrably rising faster than ...
Reference: Hydrovision India 2011, SESSION 5c: (Risk Management in Tunnelling)
<p>Traffic congestion and environmental factors are creating a demand for greater utilization of underground spaces in urban areas. In mechanized excavation of subway tunnels, the Earth Pressure Balanced Shield (EPBS) has been developed in the recent decades ...
Reference: First Asian and 9nth Iranian Tunneling Symposium, November 2011, Tehran - Iran