000012014 001__ 12014
000012014 005__ 20141205160010.0
000012014 04107 $$aeng
000012014 046__ $$k2008-10-12
000012014 100__ $$aWang, Fu-Tong
000012014 24500 $$aInfluence of Backfill Cohesion on Seismic Displacement of Gravity Retaining Wall

000012014 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012014 260__ $$b
000012014 506__ $$arestricted
000012014 520__ $$2eng$$aBackfill cohesion can significantly reduce active seismic earth pressure. The influence of this factor on earthquake-induced displacement of walls was discussed. Based on the Raffnsson, Wu and Prakash’s framework and the theory on seismic earth pressure of cohesive backfill, a model was established to compute the cumulative displacement. A coupling movement mode of sliding and rocking of a wall was considered, and the dynamic nonlinearity of foundation soil and the cohesion of backfill were simulated. Permanent displacements of a sample wall were computed, considering 16 combined conditions of backfill cohesion and friction angle. The results show that the permanent displacement tends to decrease with the cohesion increasing. However, the decreasing range is negligibly small comparing with the decrease of active earth pressure. It is suggested that the effect of backfill cohesion on the permanent displacement should not be considered in the displacement-based seismic design of gravity retaining structures.

000012014 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012014 653__ $$agravity retaining wall, seismic permanent displacement, backfill cohesion, seismic earth pressure

000012014 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012014 720__ $$aWang, Fu-Tong$$iTao, Xia-xin$$iSun, Jing
000012014 8560_ $$ffischerc@itam.cas.cz
000012014 8564_ $$s141010$$uhttps://invenio.itam.cas.cz/record/12014/files/04-02-0074.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 04-02-0074.
000012014 962__ $$r9324
000012014 980__ $$aPAPER