Effects of Different Coherency Models on Utility Tunnel through Shaking Table Test

Chen, Zhiyi; Liang, Sunbin; He, Chuan

doi:10.1080/13632469.2018.1452807

Cited by 11 publications

(2 citation statements)

References 34 publications

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“…State-o-the-art studies show that simulation of the spatially correlated earthquake ground motion data for use in dynamic analysis of extended structures, tunnels, nuclear power plants (Liu and Hongs [55], Chen et al [56], Ahmed et al [57], Papadopoulos et al [58], Wu et al [59]).…”

Section: Discussionmentioning

confidence: 99%

Spatial variation model of seismic ground motion for Istanbul

Harmandar

2020

DÜMF Mühendislik Dergisi

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Earthquake induced base motions of elongated structures will not be uniform. This variation of ground motion has a nonnegligible effect on the dynamic response of lifelines that has led to investigations of characterization and modelling of the spatially varying earthquake ground motion within the last decade. In this context, spatial variation of seismic ground motion in Istanbul is analyzed. After the introduction of the concept of coherency function and its conventional estimation procedure, estimation of coherency from recorded data and its interpretation are presented. The lagged coherency is calculated by the conventional coherency estimation scheme applied to six earthquakes registered by the Istanbul Earthquake Rapid Response System. A coherency model for Istanbul is derived that will enable to simulate spatially variable ground motion needed as input in the design of extended structures. Simulation of ground motion at pairs of closely spaced locations is presented that consider the derived coherencies in their scheme. The results are compared with actual recordings from the same locations. Simulation of spatially variable ground motion consistent with a coherency function is stated.

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Section: Discussionmentioning

confidence: 99%

Spatial variation model of seismic ground motion for Istanbul

Harmandar

2020

DÜMF Mühendislik Dergisi

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“…The final inclusion step was based on the analysis of the 59 articles, where sustainability claims in this analysis defined as "a concrete statement about the sustainability consequences of using MUT instead of OCE" were sought. The occurrence of this type of claim was used as the final selection criterion, which led to exclusion of articles that focused on soil conditions (Il'ichev et al, 2011), BIM technologies (Wu et al, 2018;Ge and Xu, 2019;Hu and Zhang, 2019) and seismic performance (Chen et al, 2010(Chen et al, , 2018Jiang et al, 2010; of using MUTs without discussing the implications on sustainability. After this final selection stage, 21 articles remained for further analysis.…”

Section: Selection Of the Literaturementioning

confidence: 99%

A Critical Review of the Sustainability of Multi-Utility Tunnels for Colocation of Subsurface Infrastructure

Bergman

Anderberg

Krook

et al. 2022

Front. Sustain. Cities

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Multi-utility tunnel (MUT) have received increasing attention as an alternative method for installing subsurface infrastructure for the distribution of electricity, telecommunications, water, sewage and district heating. MUTs are described as a potentially more sustainable technology than conventional open-cut excavation (OCE), especially if the entire life cycle of these cable and pipe networks is taken into account. Based on an extensive review of the academic literature, this article aims to identify and critically examine claims made about the pros and cons of using MUT for the placement of subsurface infrastructure. Identified claims are mapped, and their validity and applicability assessed. These claims are then analyzed from a sustainability perspective, based on the three sustainability dimensions and a life cycle perspective. The results show that a variety of advantages and disadvantages of using MUTs for subsurface infrastructure are highlighted by the articles, but several of these are without any empirical support. When some form of empirical support is presented, it usually comes from case-specific analyses of MUTs, and the applicability in other MUT projects is seldom discussed. Economic performance is the sustainability dimension that has received the most attention, while environmental performance has not been analyzed in the reviewed literature, which is a major limitation of the current knowledge. In summary, the knowledge about the sustainability performance of using MUTs for subsurface infrastructure is still limited and incoherent. In order to increase the knowledge, this article points out the importance of new case studies, in which the sustainability consequences of using MUTs for subsurface infrastructure are mapped and evaluated by combining both quantitative and qualitative assessment methods.

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