{"id":735,"date":"2022-07-24T11:29:41","date_gmt":"2022-07-24T11:29:41","guid":{"rendered":"https:\/\/smar.sg-host.com\/?p=735"},"modified":"2025-04-13T21:55:57","modified_gmt":"2025-04-13T21:55:57","slug":"tunnel-eurasia-importanza-della-progettazione-per-gli-attenuatori","status":"publish","type":"post","link":"https:\/\/www.smaroadsafety.com\/it\/tunnel-eurasia-importanza-della-progettazione-per-gli-attenuatori\/","title":{"rendered":"EURASIA TUNNEL: L\u2019importanza della progettazione per gli attenuatori"},"content":{"rendered":"
\n

Link Veloci<\/h4>\n
    \n
  1. Problematica<\/a><\/li>\n
  2. Soluzione<\/a><\/li>\n
  3. Conclusioni<\/a><\/li>\n<\/ol>\n<\/div>\n
    \n
    \n

    \"\"<\/p>\n

    Eurasia Tunnel represented one of the most monumental engineering and private mobility projects of recent years.
    \r\nIt is a 5.4 km double bridge-tunnel that connects the European and Asian parts of Istanbul with a route of 14.6 km. It crosses the Bosphorus under the seabed at a maximum depth of 106 meters. The unprecedented combination of multiple complexities has consistently kept technicians and operators in suspense. It was something new, never realized before.
    \r\nThe Turkish company Yapi Merkezi and the South Korean company SK E&C have formed a joint venture for the management and completion of this work.
    \r\nInvestments of billions of euros came from international institutions and banks.
    \r\nContractors have contacted SMA to request a proposal to supply the devices in and out of the tunnel.
    \r\nThey were then suggested to the customer which devices to use in the various critical points through the positioning in the plan and the supply of the complete device.
    \r\nThe client\u2019s goal was to create a safe and avant-garde road tunnel that could in some way also respect aesthetic canons that recall modernity.<\/p>\n

    \n

    Problematica<\/h3>\n

    The tunnels are highly critical concerning safety, an element that requires a specific management method.
    \r\nEvery minimum road risk (accidents, malfunctions of a vehicle, possible fires) in a tunnel is greater: that\u2019s why for the contractors of this project the safety issue had to be managed perfectly!
    \r\nIn this specific case, the impact Crash cushions had to be positioned near the singular points with a particular risk of impact and had to be installed without creating any hitches.
    \r\nIn fact, given the presence of obstacles on the construction site (electrical cables, expansion joints), it was necessary to create ad hoc solutions so that the work continued without difficulty.
    \r\nAnother critical issue was represented by the speed and costs of realization of the work, which, in other words, meant the consideration in the design analysis phase also of:
    \r\n\u2013 transit time of materials;
    \r\n\u2013 customs clearance times and costs;
    \r\n\u2013 conditions in which the work is carried out (in this case at night), trying to make the best of the daily hours that SMA had available to complete its part in this work.<\/p>\n<\/div>\n

    \n

    Soluzione<\/h3>\n

    SMA proposed to the client different types of impact Crash cushions by positioning the devices in front of the obstacle to be protected and supplying them.
    \r\nImpact Crash cushions were installed in tunnel niches, bypasses, and in front of toll stations.
    \r\nThanks to our engineering consulting service, we have provided ad hoc solutions in accordance with the configuration of the obstacle to be protected.<\/p>\n

    Gli attenuatori dovevano presentare determinate caratteristiche:<\/p>\n

      \n
    1. 1.\tEssere ignifughi: la plastica, infatti, nei tunnel \u00e8 altamente sconsigliata \u2013 o proprio non consentita dalla legge, come succede in Italia - perch\u00e9 infiammabile; SMA produce dispositivi completamente in acciaio, che non incrementano il rischio di incendio, oltre ad essere molto pi\u00f9 resistenti alle variazioni di temperatura;<\/li>\n
    2. 2.\tAvere il minimo ingombro possibile: un attenuatore troppo lungo avrebbe infatti impedito ai veicoli l\u2019uso del bypass per eventuali fermate di emergenza. Quando si parla di una galleria, meno spazio occupano gli attenuatori d\u2019urto e meglio \u00e8. Tuttavia, non si pu\u00f2 rinunciare ad una performance di sicurezza, al punto che sia inadeguata, soprattutto in una strada sottomarina con un elevatissimo traffico di persone e merci. Gli Attenuatori SMA Leonidas sono invece speciali in quanto combinano la Massima Performance con il Minimo Ingombro;<\/li>\n
    3. Essere facilmente riparabili: in caso di incidente contro l\u2019attenuatore \u00e8 necessario ripristinare il dispositivo nel minor tempo possibile. SMA Leonidas si ripara in soli 30 minuti;<\/li>\n
    4. Rispettare un certo criterio estetico (gli attenuatori dovevano essere di colore arancione): I dispositivi SMA sono tutti in Acciaio Zincato a Caldo, ma su richiesta \u00e8 possibile effettuare una verniciatura a polvere nel colore desiderato.<\/li>\n<\/ol>\n

      Questo lavoro ingegneristico e industriale insieme \u00e8 stato fatto tenendo in seria considerazione i tempi di consegna del progetto.<\/p>\n

      SMA vanta una precisione del 99,2% sui tempi di consegna, e, soprattutto in un lavoro monumentale come questo, rispettare gli accordi diventava essenziale.<\/p>\n<\/div>\n

      \n

      Conclusioni<\/h3>\n

      \"\"<\/p>\n

      We have therefore managed to bring home a result that has fully satisfied us, putting a bit of Pride and Italian ingenuity in a work of international importance.
      \r\nWe have learned a lot, and we now have a wealth of knowledge and experience that allows us to face any project with solidity. In fact, it is in such an unprecedented context that we have been able to put our skills to good use, making the SMA group grow even more.
      \r\nOnce the tunnel was completed we had the honor of attending the inauguration ceremony and receiving from the Turkish authorities a gift that we will remember forever.
      \r\nAt the presentation of this mammoth work, the collection of commemorative stamps for the birth of the Eurasia tunnel was delivered to us and all our colleagues. We were incredibly surprised to see that one of our Crash cushions was portrayed on one of these stamps.<\/p>\n

      Ci ha incredibilmente sorpreso vedere che in uno di questi francobolli era ritratto proprio uno dei nostri attenuatori.\nPer SMA si \u00e8 trattato di un riconoscimento senza precedenti, che ha dato ancora pi\u00f9 luce a tutto il team di esperti che rende la nostra squadra cos\u00ec performante.<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Quick Links Problems Solution Conclusions Eurasia Tunnel represented one of the most monumental engineering and private mobility projects of recent years. It is a 5.4 km double bridge-tunnel that connects the European and Asian parts of Istanbul with a route of 14.6 km. It crosses the Bosphorus under the seabed at a maximum depth of […]<\/p>\n","protected":false},"author":1,"featured_media":745,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,78],"tags":[],"class_list":["post-735","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-safety-tips","category-related-projects"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.smaroadsafety.com\/it\/wp-json\/wp\/v2\/posts\/735","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.smaroadsafety.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.smaroadsafety.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.smaroadsafety.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.smaroadsafety.com\/it\/wp-json\/wp\/v2\/comments?post=735"}],"version-history":[{"count":0,"href":"https:\/\/www.smaroadsafety.com\/it\/wp-json\/wp\/v2\/posts\/735\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.smaroadsafety.com\/it\/wp-json\/wp\/v2\/media\/745"}],"wp:attachment":[{"href":"https:\/\/www.smaroadsafety.com\/it\/wp-json\/wp\/v2\/media?parent=735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.smaroadsafety.com\/it\/wp-json\/wp\/v2\/categories?post=735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.smaroadsafety.com\/it\/wp-json\/wp\/v2\/tags?post=735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}