000019713 001__ 19713
000019713 005__ 20170118182333.0
000019713 04107 $$aeng
000019713 046__ $$k2017-01-09
000019713 100__ $$aValenzuela, Luis
000019713 24500 $$aSeismic Behavior of Tailings Dams in Chile

000019713 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019713 260__ $$b
000019713 506__ $$arestricted
000019713 520__ $$2eng$$aAn extremely high and frequent seismic activity coincides in Chile with the existence of numerous tailings dams associated to the copper industry. In the country there is a history of tailings dam failures since the early XX century and up to today. Nevertheless since the decade of 1960 there have been a growing number of new large tailings dams that have had a very good performance even when subjected to very strong earthquakes. The paper summarizes the instructive history of failures as well as of successes of the newly designed tailings dams and particularly of the sand tailings dams. Different aspects of the main new sand tailings dams such as the design criteria, tailings sand characteristics under high confining stresses are discussed. These aspects are complemented with information on major earthquakes occurred in Chile in the last years, especially of El Maule Earthquake of Magnitude 8.8 of February 27, 2010 and the location of main tailings dams in the zones impacted by this earthquake. Finally, discussions are included with regard general seismic performance of tailings sand dams, seismic deformations, and seismic instrumentation including dams in operation and dams already inactive.

000019713 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019713 653__ $$aTailings dams, Seismic behavior, Sand dams, Tailings sands, Dynamic properties of sands.

000019713 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019713 720__ $$aValenzuela, Luis$$iTroncoso, Jorge H$$iVerdugo, Ramon
000019713 8560_ $$ffischerc@itam.cas.cz
000019713 8564_ $$s1279937$$uhttps://invenio.itam.cas.cz/record/19713/files/4230.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4230.
000019713 962__ $$r16048
000019713 980__ $$aPAPER