Characterizing crack patterns on tunnel linings associated with shear deformation induced by instability of neighboring slopes

Wang, Tai‐Tien

doi:10.1016/j.enggeo.2010.06.010

Cited by 100 publications

(23 citation statements)

References 10 publications

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“…This induces a bending moment in the segment that opens the cracks. The distribution and direction of the cracks are compatible with those described by Wang [20] in Case IV, with a similar relative geometry of slope instability phenomenon and tunnel.…”

Section: Discussionsupporting

confidence: 74%

Structural Health Monitoring of a Road Tunnel Intersecting a Large and Active Landslide

2017

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Dealing with engineering structures that are not easily replaceable requires frequent assessment of the damage state of the construction in order to estimate its durability and reliability. The procedures that allow damage to be detected and identified are broadly defined as Structural Health Monitoring (SHM). In this work, a SHM network has been deployed in a road tunnel that intersects a massive landslide, whose movements are causing the formation of cracks along the tunnel lining. The monitoring system measures in real time the displacements across major cracks and the rotation of the tunnel segments; data are gathered and made easily accessible through a web-based platform. The mechanisms by which the tunnel deforms under the landslide-induced stress have been defined through the analysis of three years of monitoring data. The factors triggering an increase in deformation rates and causing damage to the structure have also been investigated. This evidence will support the design of mitigation works to extend the life-span of the tunnel.

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Section: Discussionsupporting

confidence: 74%

Structural Health Monitoring of a Road Tunnel Intersecting a Large and Active Landslide

2017

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“…In areas prone to instability, such as in the case described in this paper, the induced stress state can trigger or accelerate landslide movements, even on large scale (Sciotti and Calabresi, 2000;Picarelli et al, 2002;Barla et al, 2006;Noferini et al, 2007;Urcioli and Picarelli, 2008;Wang, 2010;Bozzano et al, 2011;Jiao et al, 2013;Sciotti and Pigorini, 2013;Maiorano et al, 2014). In particular, Urcioli and Picarelli (2008) reviewed some Italian case studies of the interaction between landslides and man-made works.…”

Section: Introductionmentioning

confidence: 92%

“…In particular, Urcioli and Picarelli (2008) reviewed some Italian case studies of the interaction between landslides and man-made works. Wang (2010) showed a number of damage patterns of the tunnel lining in relation to different slope instabilities. Noferini et al (2007) and Bozzano et al (2011) focused on GB-SAR technique applied to monitor landslides affected by tunnelling.…”

Section: Introductionmentioning

confidence: 99%

Tunnelling-induced landslides: The Val di Sambro tunnel case study

Bandini

Berry

Boldini

2015

Engineering Geology

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“…However, there are many deficiencies in practice, which are reflected in various aspects. These deficiencies mainly include undeveloped supporting theory system of surrounding rock deformation, weak link of tunnel design and construction with geological conditions, low mechanization level of construction, and uncontrollable safety risk in complex geological conditions (Wang 2010). The mechanical properties and deformation control in the construction process of schist tunnels under complex geological environment are the frontier research topics in the field of tunnel projects (Lindenbergh et al 2005;Tsesarsky and Hatzor 2006;Van Doesburg et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Geo-stress Characteristics of Schist of Erdaoya Tunnel and Physical Properties of Rock Masses

Zhang

Liang

et al. 2017

Geotech Geol Eng

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Erdaoya tunnel in the highway connecting Shiyan (Hubei province) and Manchuan, (Shanxi province) was studied in the study. Various problems occurred in the construction of the tunnel, including large deformation of surrounding rocks, cracks of preliminary supports and secondary linings as well as creeping down and collapse of surrounding rock masses along schistosity planes. In which, the most serious problem was large deformation of surrounding rocks, which not only dramatically delayed the normal construction progress of the tunnel, but also brought a huge challenge for the safety of builders. In order to solve this problem, detailed investigations were made on site in the study to reveal the regional geological, engineering geological and hydrogeological conditions of the tunnel. By conducting geo-stress measurement on site, the characteristics of geo-stress field of Erdaoya tunnel were analyzed from four aspects, including magnitudes of stress, coefficient of lateral pressure, orientation of stress and the relationship between magnitudes of geo-stresses and depths. By applying the DIPS software for interactively analyzing geological locator data, structure characteristics of rock masses were analyzed for preferred structural planes and schistosity planes in the tunnel site.Furthermore, the authors tested the physical and hydrological properties of the rock specimens collected on-site. So various physical properties (density, void fraction, and wave velocity) and water absorption hydrological property of schist were obtained, which provide underlying parameters support for the deformation and support of surrounding rocks of the tunnel.

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Characterizing crack patterns on tunnel linings associated with shear deformation induced by instability of neighboring slopes

Cited by 100 publications

References 10 publications

Structural Health Monitoring of a Road Tunnel Intersecting a Large and Active Landslide

Structural Health Monitoring of a Road Tunnel Intersecting a Large and Active Landslide

Tunnelling-induced landslides: The Val di Sambro tunnel case study

Geo-stress Characteristics of Schist of Erdaoya Tunnel and Physical Properties of Rock Masses

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