000004680 001__ 4680
000004680 005__ 20141119144544.0
000004680 04107 $$aeng
000004680 046__ $$k2002-06-02
000004680 100__ $$aGu, Wei Hua
000004680 24500 $$aA MODEL FOR SOIL STRUCTURE MOBILITY AND COLLAPSE

000004680 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004680 260__ $$bColumbia University in the City of New York
000004680 506__ $$arestricted
000004680 520__ $$2eng$$aThis paper presents a plastic constitutive model based on the critical state boundary surface theory. The formulation of the yield surface in the Cam Clay model is used as an inner feature cap or small cap to describe the soil structure mobility and collapse. Unlike a traditional yield surface, a stress path can move below, outside or on the small cap to produce plastic strains. The small cap when related to the steady state strength can be used to predict soil structure collapse under both drained and undrained conditions. Excellent agreement between numerical simulations based on this small cap model and actual laboratory measurements verifies that the model can be used to completely describe the complex behavior of sand which includes contraction, dilation, phase change and ultimate failure at the steady state.

000004680 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004680 653__ $$aSteady State, Liquefaction, Mobility, Collapse.

000004680 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004680 720__ $$aGu, Wei Hua$$iKrahn, John
000004680 8560_ $$ffischerc@itam.cas.cz
000004680 8564_ $$s791324$$uhttp://invenio.itam.cas.cz/record/4680/files/158.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004680 962__ $$r4594
000004680 980__ $$aPAPER