000021734 001__ 21734
000021734 005__ 20170622131302.0
000021734 04107 $$aeng
000021734 046__ $$k2017-06-15
000021734 100__ $$aZhang, Jinghua
000021734 24500 $$aDETAILED SIMULATION OF THE SHAFT INGATE OF A SHIELD TUNNEL UNDER SEISMIC IMPACT

000021734 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021734 260__ $$bNational Technical University of Athens, 2017
000021734 506__ $$arestricted
000021734 520__ $$2eng$$aUnder seismic impact, critical joints, such as connecting passages and working shafts, are the weak points in shield tunnels. Due to the sharp structural change, stress concentration in these parts is more severe than that in the regular tunnels. In order to have a better understanding of the seismic behavior of the working shaft ingate in shield tunnels, a three-dimensional finite element model is constructed based on a utility tunnel built in the north of Suzhou City beneath the Yangtze River. The numerical model is composed of three major parts, namely, the working shaft, the shield tunnel and the surrounding soil. For the sake of a realistic simulation, many details are considered in this model, including tunnel segments, bolts, layered soil, etc. The deformation and the displacement near the ingate are investigated along with the internal forces of the bolts. This numerical study is part of a research project which is aimed at analyzing the seismic performance of the very same utility tunnel in Suzhou. Meanwhile, a shaking table test is due. And many valuable predictions are drawn through the numerical analysis.

000021734 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021734 653__ $$aWorking Shaft Ingate, Shield Tunnels, Seismic Analysis

000021734 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021734 720__ $$aZhang, Jinghua$$iYuan, Yong$$iXiao, Mingqing$$iZhao, Jian$$iTu, Xinbin$$iMeng, Qingqiang
000021734 8560_ $$ffischerc@itam.cas.cz
000021734 8564_ $$s633466$$uhttps://invenio.itam.cas.cz/record/21734/files/17723.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS11] Recent advances and challenges in geotechnical earthquake engineering
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000021734 962__ $$r21500
000021734 980__ $$aPAPER