<p>An optimization model was developed to obtain the ideal values of the primary support parameters of tunnels, which are wide-ranging in high-speed railway design codes when the surrounding rocks are at the III, IV, and V levels. First, several sets of experiments ...

<p>The HKIE Geotechnical Division Annual Seminar provides a platform for geotechnical engineers and researchers to exchange their knowledge on hot geotechnical topics. No doubt tunnel and underground construction have been a hot topic amongst geotechnical ...

Earthquakes subject tunnel linings to transient strains due to ground shaking, and can cause localized permanent strains in zones of fault rupture. These issues are discussed with respect to seismic analyses and design strategies. Most underground structures ...

As every construction project is quite different according to the type of construction, 3D-representations on design, estimation, construction, and management also need to be different. While the 3D-approach has been widely applied to building projects, it ...

<p>This section summarizes some local tunneling projects constructed in geologic conditions similar to the various zones being considered for the SR-710 Tunnel. These local projects include the NEIS, the ECIS, and the Metro Red Line and Gold Line Eastside ...

This paper presents a parametric investigation of the seismic response of circular tunnel. The dynamic response in non-linear conditions due to seismic shaking is analysed numerically making use of the finite element program ICFEP in non-linear conditions. ...

Domestic Scan 09 05, Best Practices for Roadway Tunnel Design, Construction, Maintenance, Inspection, and Operations, conducted during August and September 2009, is one of the activities initiated to assist in addressing the need for national tunnel standards ...

<p>This article describes briefly the main assessments on the approaches used by engineers in quantifying the seismic effect on an underground structure, both referring to deterministic either probabilistic methods. However, the main purpose is that of proposing ...

Since the advent of New Austrian Tunneling Method (NATM), shotcrete as a primary means of support in tunnels has been widely applied. It’s most important features are durability, speed of application and cost effectiveness. This paper introduces some tables ...

This paper describes the Arhavi Highway Tunnel which has two tubes, its geometrical properties, finite element model, and the nonlinear earthquake behaviour under a huge ground motion considering soil-structure interaction. The Arhavi Highway Tunnel is one ...