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Latest Geotechnical Publications

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<p>This paper examines excavation chamber pressure behavior within a 17.5 m diameter earth pressure balance tunnel boring machine (EPBM) used on the Alaskan Way viaduct replacement tunnel project in Seattle, Washington, USA. The study examines behavior during ...
Reference: International Conference on Tunnel Boring Machines in Difficult Grounds (TBM DiGs), Singapore, 18–20 November 2015
<p>From 1989 to 2010, 20 tunneling projects have been carried out with the Double-O-Tube (DOT) shield tunneling method in the world. In this paper, the DOT shield tunneling for the construction of Taoyuan International Airport Access (TIAA) Mass Rapid Transit ...
Reference: Tunnelling and Underground Space Technology 30 (2012) 233–245
<p>Soil liquefaction is conventionally evaluated through an empirical framework based on accumulated experience from case histories - the "NCEER Method". However, the empirical framework contains inconsistent physics and characterizations that are unrelated ...
Reference: 5th International Conference on Earthquake Geotechnical Engineering, January 2011, 10-13, Santiago, Chile
<p>Measurements on back-fill grouting at Groene Hart Tunnel (GHT) are described and analysed. The research utilises TBM data, monitored grout pressures and measured rheological properties of tunnelling fluids. Grout injection strategy and vertical grout pressure ...
Reference: Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London
<p>Based on CFD method, this paper conducted simulation analysis of lorry and car fires for large cross-section road tunnel. The smoke distribution feature was discussed and the corresponding results of critical ventilation velocity were also compared with ...
Reference: Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London
<p>In order to assess the influence of different foam types on compressibility behavior of conditioned sand, a set of tests were performed on three gradation of sandy soil. Some index tests were also undertaken for verifying foam agents characteristics and ...
Reference: Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London
<p>A mathematical relation is described between the distribution of grout over injection ports, rheological properties and vertical grout pressure gradient immediately behind a TBM. This vertical grout pressure gradient is an important loading parameter in ...
Reference: Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London
<p>The City of BuenosAires,Argentina, is expanding it&rsquo;s metro network. Some 13 km of newtunnels have been excavated since 1998 and some 20 km are scheduled for construction in the near future. Many major improvements have been implemmented during these ...
Reference: Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London
<p>Model parameters of conditioned soils in head chamber of shield machine are determined based on tri-axial compression tests in laboratory. The loads acting on tunneling face are estimated according to static earth pressure principle. Based on Duncan-Chang ...
Reference: EJGE, Vol. 14, Bund. K
<p>The paper discusses the geodynamic challenges and technical countermeasures in the shield tunnel projects passing under an existing railway line, especially for soft ground conditions. Three main issues needed to be solved by the engineering community: ...
Reference: Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London