000010771 001__ 10771
000010771 005__ 20141205155802.0
000010771 04107 $$aeng
000010771 046__ $$k2008-10-12
000010771 100__ $$aLiu, Xue-Zhu
000010771 24500 $$aDynamic Characteristics of Nanjing Flake-Shaped Structural Sand in Long-Term Repeated Loading

000010771 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010771 260__ $$b
000010771 506__ $$arestricted
000010771 520__ $$2eng$$aThe flake-shaped sand soils, containing quartz, chlorite and muscovite minerals, are widely distributed throughout the middle and lower reaches of the Yangtze River. Comparing with the standard quartz sand soils composed of circular-shaped particles, the flake-shaped structural sand has some differences in physical mechanics properties. The flake-shaped particle components give rise to the anisotropic property in physical mechanics properties of flake-shaped structural sand, and its strength in horizontal direction is smaller than that of vertical direction. Moreover, some preliminary researches indicate that the flake-shaped structures have a large effect on liquidation properties of sand, and its dynamic shear modulus and damp properties also have marked differences from the standard quartz sand. So, a series of dynamic characteristics tests on flake-shaped sand was performed by using the WFI cyclic triaxial apparatus made in England. The dynamic characteristics of flake-shaped sand under different cell pressure, initial static deviator stress and axial cyclic stress ratio, were studied and its influence regularity was analyzed. In addition, through comparing the effective stress path under cyclic loading with static loading, the process of liquefaction of saturated Nanjing flake-shaped sand with development of dynamic pore-water pressure, including stable state, compression state, dilative state and dynamic stress-strain behavior, were investigated. And two kinds of failure patterns of saturated Nanjing flake-shaped sand were provided.

000010771 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010771 653__ $$along-term repeated loading, Nangjing flake-shaped sand, dynamic characteristics, failure pattern, effective stress path 

000010771 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010771 720__ $$aLiu, Xue-Zhu$$iChen, Guo-Xing
000010771 8560_ $$ffischerc@itam.cas.cz
000010771 8564_ $$s354523$$uhttp://invenio.itam.cas.cz/record/10771/files/12-03-0013.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-03-0013.
000010771 962__ $$r9324
000010771 980__ $$aPAPER