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<p>In tunneling, it is very important to select the correct tunneling machines. Choosing a wrong method may be very costly to the company. There are many parameters affecting the decision stage of selection of the tunneling machine. Geology ...
Reference: Acta Montanistica Slovaca, Volume 20 (2015), number 2, 98-109
<p>The main purpose of this study was to provide a three-dimensional numerical model which would allow to show the influence of the constitutive model of the ground on the tunnel lining behaviour and displacement field surrounding the tunnel. Most of the processes ...
Reference: American Journal of Applied Sciences 10 (8): 863-875, 2013
<p>A case study associated with shield-machine bored tunnels in sand is presented in this paper. Observations show that driving the first bored tunnel resulted in up to 10 mm of surface settlement, and the ground between two tunnels seems to have been affected ...
Reference: Journal of GeoEngineering, Vol. 6, No. 3, pp. 113-123, December 2011
<p>Poor geological conditions are often encountered during underground construction in urban areas. Additionally, buildings, underground infrastructures and other facilities are more densely situated along or under the streets of a city or town. Changes to ...
Reference: Seminar on “The State-of-the-art Technology and Experience on Geotechnical Engineering in Korea and Hong Kong” - 28 Mar 2008
<p>Several tunnel projects under very high groundwater heads have been started recently or are currently under design, such as the Hallands&aring;s tunnel in Sweden (up to 13 bar), the Brightwater project in Seattle (7 bar) and Lake Mead Intake No. 3, Las ...
Reference: North American Tunneling 2006, pp. 277-289
<p>The construction of underground tunnels in soft ground in urban areas involves the potential for ground movements caused by the tunnelling to affect existing surface structures. Masonry structures are at particular risk of crack damage. Conventional empirical ...
Reference: A Thesis submitted for the degree of Doctor of Philosophy at the University of Oxford Balliol College Trinity Term 2006
This paper describes numerical analyses of multiple tunnelling undertaken using the commercial finite element software Plaxis. The aim of the study is to improve prediction of minimum interaction distance between multiple driven tunnels at shallow depths in ...
Reference: 18th Australasian Conference on the Mechanics of Structures and Materials, Perth, Australia, 1-3 December 2004
<p>The paper describes the design considerations and the experiences from the<br />construction of two shallow motorway tunnels in Greece. The ground consists of stiff clays, clayey sands and silts. The hydrogeological conditions are complex.<br />The tunnels ...
Reference: World Tunnel Congress Progress in Tunnelling after 2000, Milano, June 10-13, 2001