000021938 001__ 21938
000021938 005__ 20170622131312.0
000021938 04107 $$aeng
000021938 046__ $$k2017-06-15
000021938 100__ $$aKaneda, Kazuhiro
000021938 24500 $$aNUMERICAL SIMULATIONS WITH CUSHIONING MATERIAL INSTALLED BEHIND THE RETAINING WALL FOR RESILIENT STRUCTURES

000021938 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021938 260__ $$bNational Technical University of Athens, 2017
000021938 506__ $$arestricted
000021938 520__ $$2eng$$aFollowing the Hyogoken Nanbu earthquake in 1995, the design earthquake wave was larger. After the Tohoku chihou Taiheiyouoki earthquake in 2011, the tsunami was focused after earthquake. In the future large earthquakes are expected to occur in Japan. We are required to design more resilient structures that can withstand these events. We conducted a numerical simulation of the reduction of earth pressure in a sandy backfill. When a cushioning material was placed behind the retaining wall, the earth pressure was reduced, because the backfill sand moved to the active earth pressure state. It is possible that the design section of the gravity caisson became smaller. In the dynamic approach, shaking table tests were performed and the earth pressure acting on the retaining wall was seen to reduce. However, the mechanism of earth pressure reduction was not clear in the dynamic tests. Therefore in this study, the mechanism of earth pressure reduction during an earthquake was clarified using a numerical simulation. From the simulation results, the residual horizontal displacement in the case of sand is larger than that in the case of cushioning material. It is cleared that in the cushioning material the inertial force of backfill sand was absorbed for the friction force toward to the foundation ground beside the effect of quasi-active state.

000021938 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021938 653__ $$aRetaining wall, Cushioning material, Earth pressure, Dynamic simulation, Quasiactive state.

000021938 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021938 720__ $$aKaneda, Kazuhiro$$iOhtsuka, Satoru$$iYamazaki, Hiroyuki
000021938 8560_ $$ffischerc@itam.cas.cz
000021938 8564_ $$s833414$$uhttps://invenio.itam.cas.cz/record/21938/files/18382.pdf$$yOriginal version of the author's contribution as presented on CD, section: [RS07] Geotechnical earthquake engineering
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000021938 962__ $$r21500
000021938 980__ $$aPAPER