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Publications tagged with [shallow tunnels]

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EFFECT OF PRE-GROUND IMPROVEMENT METHOD DURING SHALLOW NATM TUNNEL EXCAVATIONS UNDER UNCONSOLIDATED CONDITIONS (2013)
<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
NUMERICAL AND ANALYTICAL INVESTIGATION OF GROUND SURFACE SETTLEMENT DUE TO SUBWAY EXCAVATION (2012)
<p>In this paper, ground movement in a highly populated region of Iran&rsquo;s capital city, Tehran, induced by excavation and construction of 7 the line of Tehran subway has been investigated. It was aimed to analyse the ground displacements and surface settlement ...
Reference: Geosciences 2012, 2( 6 ): 1 85 - 19 1 DOI : 1 0.5923/j. geo . 2012020 6 . 06
QUALITY AND RISK MANAGEMENT CONSIDERATIONS FOR VERY SHALLOW SOFT GROUND CONVENTIONAL TUNNELLING IN URBAN SETTINGS (2011)
<p>The construction of shallow mined tunnels in urban settings is frequently undertaken by use of conventional tunneling methods. In soft ground under shallow cover the construction techniques rely largely on the use of pre-support measures and ground improvement ...
Reference: 2011 World Tunnel Congress and 37th ITA General Assembly Proceedings
INFLUENCES OF MATERIAL DILATANCY AND PORE WATER PRESSURE ON STABILITY FACTOR OF SHALLOW TUNNELS (2009)
Explicit finite difference code was used to calculate the stability factors of shallow tunnels without internal support in limit state. The proposed method was formulated within the nonassociative plasticity. For the shallow tunnels in soft clay, without considering ...
Reference: Trans. Nonferrous Met. Soc. China 19(2009)
SHOTCRETE EXCAVATIONS FOR THE MUNICH SUBWAY – COMPARISON OF DIFFERENT METHODS OF FACE SUPPORT IN SETTLEMENT SENSITIVE AREAS (2009)
<p>For the construction of shallow tunnels in settlement-sensitive urban areas it is very important to reduce the settlements and to increase the stability of the tunnel face during the excavation. In the case of shotcrete excavation, the use of different ...
Reference: Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London
AN INVESTIGATION ON SEISMIC ANALYSIS OF SHALLOW TUNNELS IN SOIL MEDIUM (2008)
Buried tunnels with circular cross section, such as urban undergrounds are very popular in transportation engineering. The seismic behavior of such structures during operation is of importance. There exist different closed form solutions, such as Penzien and ...
Reference: The 14 th World Conference on Earthquake Engineering October 12-17, 2008, Beijing, China
SHALLOW TUNNELING IN UNCONSOLIDATED GROUND WITH EFFECTIVE AUXILIARY METHOD - ROKUNOHE TUNNEL IN TOHOKU SHINKANSEN (2008)
<p>This paper describes the results regarding the measurements and analysis to investigate the characteristics of ground surface settlement when a tunnel is advanced through unconsolidated ground. Rokunohe tunnel is a 3,810m long railway tunnel in Hachinohe ...
Reference: International Journal of the JCRM, Volume 4, Number 1, September 2008, pp.14-20
RISE OF THE GROUNDWATER TABLE WHEN FLOW IS OBSTRUCTED BY SHALLOW TUNNELS (1996)
The paper investigates the steady-state rise of the groundwater table upstream of a shallow tunnel due to the obstruction of the groundwater low in the direction normal to the tunnel axis, using a steady-state finite-element groundwater low model. Based on ...
Reference: Ingegneria Geologia degli Acquiferi, 7, 3-6, Italy,(1996)