1685 KB23 KB200420222012Koseki, JunichiLenart, StanislavMiyashita, Yukikaštevilka:1letnik:9str. 4-15ISSN:1854-0171COBISSID:1935207URN:URN:NBN:SI:doc-YRXK9TJWenFakulteta za gradbeništvo, prometno inženirstvo in arhitekturoActa geotechnica Slovenica2011geotehnikaJaponskapotresiutekočinjanje talSoil liquefaction in the Tone river basin during the 2011 earthquake off the Pacific coast of Tohoku|A brief report about the liquefaction damage in the Tone river basin, caused by the 2011 earthquake off the Pacific coast of Tohoku, is presented. It includes sand boiling, damage to river dikes, the settlement and tilt of superstructures, the uplift of light underground structures and lateral spreading. A history of land reclamation along the Tone river is briefly presented to understand why extensive liquefaction took place predominantly inreclaimed land. The recorded ground motions near the river were analyzed andcompared to near-source ground motions. The effects of the site location and the ground conditions during the peak ground acceleration are discussedČlanek na kratko poroča o primerih utekočinjenja tal v porečju reke Tone zaradi potresa ob vzhodni obali Japonske leta 2011. Predstavljeni so primeri pojava kipečih peskov, poškodbe na rečnih nasipih, posedki in nagibanja objektov, dvižki lahkih podzemnih objektov in bočno razrivanje površja. Za lažje razumevanje vzrokov pojava velikega števila primerov utekočinjenja tal na melioriranih področjih, je na kratko predstavljena zgodovina poteka melioracij ob reki Tone. V članku so presojani zapisi premikov tal na območju reke. Izvedena je njihova primerjava s premiki iz območij bližje žarišču potresa. Prispevek razpravlja tudi o vplivih lokacije in sestavi tal na največje pospeške temeljnih talTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Mariboru, Fakulteta za gradbeništvo