000018800 001__ 18800
000018800 005__ 20170118182241.0
000018800 04107 $$aeng
000018800 046__ $$k2017-01-09
000018800 100__ $$aStokoe, Kenneth
000018800 24500 $$aField Evaluation of the Coupled Shear Strain and Pore Water Pressure Generation Leading To Liquefaction Triggering Using Controlled Dynamic Loading

000018800 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018800 260__ $$b
000018800 506__ $$arestricted
000018800 520__ $$2eng$$aSince the 1980s, the instrumented Wildlife Liquefaction Array (WLA) in Imperial Valley, California, has been the focus of ongoing seismic and soil-liquefaction research. In this paper, the results from five separate soil liquefaction studies are examined and the data are combined to develop a more comprehensive analysis regarding the behavior of liquefiable soils at the WLA site. The experiment data are derived from three types of field tests (CPT, crosshole seismic, and full-scale, in-situ shaking tests) and two types of laboratory tests (resonant column and cyclic triaxial). The work presented herein is part of an effort to confirm and advance in-situ liquefaction testing using large, hydraulically-operated shakers by examining the results of three previous experiments and comparing them with the results from laboratory testing and data-fitted models. The authors believe that the triggering of excess pore pressure generation leading to soil liquefaction is a strain-controlled phenomenon and present results in further support of this theory. Key findings specific to the liquefiable soil at the WLA site include: (1) field identification of the threshold strain for pore pressure generation (γtpp), (2) field data for development of a pore pressure generation model, and (3) development of a modified hyperbolic shear modulus reduction relationship.

000018800 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018800 653__ $$asoil liquefaction; shear strain; pore pressure generation; in-situ shaking tests; T-Rex

000018800 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018800 720__ $$aStokoe, Kenneth$$iIi$$iCox, Brady$$iMenq, Farn-Yuh$$iRoberts, Julia
000018800 8560_ $$ffischerc@itam.cas.cz
000018800 8564_ $$s655089$$uhttps://invenio.itam.cas.cz/record/18800/files/2266.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2266.
000018800 962__ $$r16048
000018800 980__ $$aPAPER