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List of products by author: A. Harding
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Non-linear Deformation Analysis of Seismic Joints for Subway Structure During Earthquake
Abstract: This paper investigates the soil-structure interaction effects at the connection between twin tunnels and an underground station box during seismic excitation. The study utilized the finite difference code FLAC and identified the key parameters governing the dynamic response while considering the wave passage effects of vertically propagating SH-waves in the computation of the longitudinal...
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Practical Considerations for the Design of Large Diameter Segmental Linings
Abstract: The use of large diameter (greater than 10m) segmentally lined TBM tunnels is becoming increasingly commonplace. This places pressure on the segmental lining designer, who must design for more segments designed for much higher forces, and sometimes more onerous load conditions. While some of the load conditions on large diameter tunnel linings have been described in past literature, many of the...
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The case for adopting new segmental lining technologies
Abstract: It is estimated that the production and use of concrete generates more than 5% of the world’s carbon dioxide emissions: more than the aviation industry. More than three quarters of this comes from the production of cement itself. Tunnelling is typical of the construction industry in that it uses concrete in abundance: for shafts, portals, temporary support, internal structures to name but a...
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