000012295 001__ 12295
000012295 005__ 20141205160039.0
000012295 04107 $$aeng
000012295 046__ $$k2008-10-12
000012295 100__ $$aZhang, Liaojun
000012295 24500 $$aDynamic Stability of Dams Against Deep Slide by Strength Reduction Method

000012295 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012295 260__ $$b
000012295 506__ $$arestricted
000012295 520__ $$2eng$$aIn this paper ,the commercial finite element software ADINA is used to analyze dynamic stability of dams. Based on the analysis of action mechanism about the dam foundation under earthquake load，a new numerical method of dynamic stability against deep slide is proposed. The shear strength of the sliding surface is divided by different strength reduction factor and the numerical seismic analysis is carried out after the accomplishment of the static analysis. Under the different shear strength reduction factor, the curve about the earthquake total displacement of the key point and strength reduction factor is focused, according to the curve mutation, the distribution of plastic zone in the foundation and the non-convergence of the finite element calculation. The dynamic stability safety factor is finally defined as the strength reduction factor of shear strength when the gravity dam is in the critical stability state under earthquake load. As an application example of the above concepts，the dynamic stability safety for a gravity dam in a hydropower project is evaluated. The analysis of the example shows that the proposed method is feasible and it provides a valuable way for dynamic stability safety evaluation

000012295 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012295 653__ $$adynamic stability, strength reduction, dams, displacement, ADINA

000012295 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012295 720__ $$aZhang, Liaojun$$iWang, Dasheng$$iZhang, Huixing
000012295 8560_ $$ffischerc@itam.cas.cz
000012295 8564_ $$s297973$$uhttps://invenio.itam.cas.cz/record/12295/files/S13-078.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S13-078.
000012295 962__ $$r9324
000012295 980__ $$aPAPER