{"id":10316,"date":"2018-05-04T17:56:48","date_gmt":"2018-05-05T00:56:48","guid":{"rendered":"http:\/\/robbinstbm.com\/?p=10316"},"modified":"2018-06-29T15:16:55","modified_gmt":"2018-06-29T22:16:55","slug":"turkeys-most-challenging-project-gerede","status":"publish","type":"post","link":"https:\/\/www.robbinstbm.com\/es\/turkeys-most-challenging-project-gerede\/","title":{"rendered":"Excavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel"},"content":{"rendered":"

At the Gerede Water Transmission Tunnel in Central Turkey, a 31.6 km long water supply line has been designated a national priority due to severe and chronic droughts in the capital city Ankara. Drawing water from the Gerede River (and conveying to \u00c7aml\u0131dere Dam), it will be the longest water tunnel in Turkey once complete.<\/p>\n

But completing the tunnel has been an obstacle in itself. The project has been called the most challenging tunnel currently under construction in Turkey, and with good reason. Out of three standard Double Shield TBMs originally supplied to bore the tunnel, two became irretrievably stuck following massive inflows of mud and debris. In 2016, a hybrid type \u201cCrossover\u201d machine was launched to excavate the final 9 km of tunnel, but to do so it would need to cross dozens of fault zones and withstand intense water pressures up to 20 bars.<\/p>\n

To accomplish this, the machine was designed with a number of unique features including the ability to be sealed up to 20 bar pressure. In the event of a large water inflow, the stopped TBM would hold back the water\/muck and allow time for pre-consolidation grouting. The machine is also equipped with a bottom screw conveyor and a unique cutterhead design that facilitates effective muck transportation in both hard rock and mixed ground, among other features. This paper discusses the performance of the machine in exceedingly difficult conditions, and outlines the challenges yet to be overcome and how they may be surmounted. The paper also covers the unique aspects of this urgent Turkish projects and the unique logistical requirements of assembling and launching a machine deep within an existing tunnel.<\/p>\n","protected":false},"excerpt":{"rendered":"

At the Gerede Water Transmission Tunnel in Central Turkey, a 31.6 km long water supply line has been designated a national priority due to severe and chronic droughts in the capital city Ankara. Drawing water from the Gerede River, it will be the longest water tunnel in Turkey once complete. <\/p>\n","protected":false},"author":2,"featured_media":10317,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[7],"tags":[],"class_list":["post-10316","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-white-papers"],"acf":[],"yoast_head":"\nExcavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel - Robbins<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Excavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel - Robbins\" \/>\n<meta property=\"og:description\" content=\"At the Gerede Water Transmission Tunnel in Central Turkey, a 31.6 km long water supply line has been designated a national priority due to severe and chronic droughts in the capital city Ankara. Drawing water from the Gerede River, it will be the longest water tunnel in Turkey once complete.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/\" \/>\n<meta property=\"og:site_name\" content=\"Robbins\" \/>\n<meta property=\"article:published_time\" content=\"2018-05-05T00:56:48+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-06-29T22:16:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2018\/05\/Brad_Gerede_cropped.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"580\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Robbins\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Robbins_Co\" \/>\n<meta name=\"twitter:site\" content=\"@Robbins_Co\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Robbins\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/\"},\"author\":{\"name\":\"Robbins\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#\\\/schema\\\/person\\\/5fb6775f0b2b170edca2e3bdc16be280\"},\"headline\":\"Excavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel\",\"datePublished\":\"2018-05-05T00:56:48+00:00\",\"dateModified\":\"2018-06-29T22:16:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/\"},\"wordCount\":284,\"publisher\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.robbinstbm.com\\\/wp-content\\\/uploads\\\/2018\\\/05\\\/Brad_Gerede_cropped.jpg\",\"articleSection\":[\"White Papers\"],\"inLanguage\":\"es-ES\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/\",\"url\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/\",\"name\":\"Excavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel - Robbins\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.robbinstbm.com\\\/wp-content\\\/uploads\\\/2018\\\/05\\\/Brad_Gerede_cropped.jpg\",\"datePublished\":\"2018-05-05T00:56:48+00:00\",\"dateModified\":\"2018-06-29T22:16:55+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/#breadcrumb\"},\"inLanguage\":\"es-ES\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es-ES\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.robbinstbm.com\\\/wp-content\\\/uploads\\\/2018\\\/05\\\/Brad_Gerede_cropped.jpg\",\"contentUrl\":\"https:\\\/\\\/www.robbinstbm.com\\\/wp-content\\\/uploads\\\/2018\\\/05\\\/Brad_Gerede_cropped.jpg\",\"width\":600,\"height\":580},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/turkeys-most-challenging-project-gerede\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.robbinstbm.com\\\/es\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Excavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#website\",\"url\":\"https:\\\/\\\/www.robbinstbm.com\\\/\",\"name\":\"Robbins\",\"description\":\"Reliable | Responsive\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.robbinstbm.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es-ES\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#organization\",\"name\":\"Robbins\",\"url\":\"https:\\\/\\\/www.robbinstbm.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es-ES\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.robbinstbm.com\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/RobbinsLogoColor_Small-Converted-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/www.robbinstbm.com\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/RobbinsLogoColor_Small-Converted-scaled.jpg\",\"width\":2560,\"height\":929,\"caption\":\"Robbins\"},\"image\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/x.com\\\/Robbins_Co\",\"https:\\\/\\\/www.instagram.com\\\/therobbinscompany\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/groups\\\/4246982\\\/\",\"http:\\\/\\\/www.youtube.com\\\/user\\\/TheRobbinsCo\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#\\\/schema\\\/person\\\/5fb6775f0b2b170edca2e3bdc16be280\",\"name\":\"Robbins\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es-ES\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/wp-content\\\/uploads\\\/2017\\\/04\\\/avatar_user_2_1493131025-96x96.png\",\"url\":\"https:\\\/\\\/www.robbinstbm.com\\\/wp-content\\\/uploads\\\/2017\\\/04\\\/avatar_user_2_1493131025-96x96.png\",\"contentUrl\":\"https:\\\/\\\/www.robbinstbm.com\\\/wp-content\\\/uploads\\\/2017\\\/04\\\/avatar_user_2_1493131025-96x96.png\",\"caption\":\"Robbins\"},\"sameAs\":[\"http:\\\/\\\/www.linkedin.com\\\/groups\\\/Robbins-TBM-4246982?trk=myg_ugrp_ovr\"],\"url\":\"https:\\\/\\\/www.robbinstbm.com\\\/es\\\/author\\\/the-robbins-company\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Excavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel - Robbins","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/","og_locale":"es_ES","og_type":"article","og_title":"Excavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel - Robbins","og_description":"At the Gerede Water Transmission Tunnel in Central Turkey, a 31.6 km long water supply line has been designated a national priority due to severe and chronic droughts in the capital city Ankara. Drawing water from the Gerede River, it will be the longest water tunnel in Turkey once complete.","og_url":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/","og_site_name":"Robbins","article_published_time":"2018-05-05T00:56:48+00:00","article_modified_time":"2018-06-29T22:16:55+00:00","og_image":[{"width":600,"height":580,"url":"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2018\/05\/Brad_Gerede_cropped.jpg","type":"image\/jpeg"}],"author":"Robbins","twitter_card":"summary_large_image","twitter_creator":"@Robbins_Co","twitter_site":"@Robbins_Co","twitter_misc":{"Written by":"Robbins","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/#article","isPartOf":{"@id":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/"},"author":{"name":"Robbins","@id":"https:\/\/www.robbinstbm.com\/#\/schema\/person\/5fb6775f0b2b170edca2e3bdc16be280"},"headline":"Excavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel","datePublished":"2018-05-05T00:56:48+00:00","dateModified":"2018-06-29T22:16:55+00:00","mainEntityOfPage":{"@id":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/"},"wordCount":284,"publisher":{"@id":"https:\/\/www.robbinstbm.com\/#organization"},"image":{"@id":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/#primaryimage"},"thumbnailUrl":"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2018\/05\/Brad_Gerede_cropped.jpg","articleSection":["White Papers"],"inLanguage":"es-ES"},{"@type":"WebPage","@id":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/","url":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/","name":"Excavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel - Robbins","isPartOf":{"@id":"https:\/\/www.robbinstbm.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/#primaryimage"},"image":{"@id":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/#primaryimage"},"thumbnailUrl":"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2018\/05\/Brad_Gerede_cropped.jpg","datePublished":"2018-05-05T00:56:48+00:00","dateModified":"2018-06-29T22:16:55+00:00","breadcrumb":{"@id":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/#breadcrumb"},"inLanguage":"es-ES","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/"]}]},{"@type":"ImageObject","inLanguage":"es-ES","@id":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/#primaryimage","url":"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2018\/05\/Brad_Gerede_cropped.jpg","contentUrl":"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2018\/05\/Brad_Gerede_cropped.jpg","width":600,"height":580},{"@type":"BreadcrumbList","@id":"https:\/\/www.robbinstbm.com\/turkeys-most-challenging-project-gerede\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.robbinstbm.com\/es\/"},{"@type":"ListItem","position":2,"name":"Excavating Turkey\u2019s Most Challenging Project: The Gerede Water Transmission Tunnel"}]},{"@type":"WebSite","@id":"https:\/\/www.robbinstbm.com\/#website","url":"https:\/\/www.robbinstbm.com\/","name":"Robbins","description":"Reliable | Responsive","publisher":{"@id":"https:\/\/www.robbinstbm.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.robbinstbm.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es-ES"},{"@type":"Organization","@id":"https:\/\/www.robbinstbm.com\/#organization","name":"Robbins","url":"https:\/\/www.robbinstbm.com\/","logo":{"@type":"ImageObject","inLanguage":"es-ES","@id":"https:\/\/www.robbinstbm.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2021\/02\/RobbinsLogoColor_Small-Converted-scaled.jpg","contentUrl":"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2021\/02\/RobbinsLogoColor_Small-Converted-scaled.jpg","width":2560,"height":929,"caption":"Robbins"},"image":{"@id":"https:\/\/www.robbinstbm.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/x.com\/Robbins_Co","https:\/\/www.instagram.com\/therobbinscompany\/","https:\/\/www.linkedin.com\/groups\/4246982\/","http:\/\/www.youtube.com\/user\/TheRobbinsCo"]},{"@type":"Person","@id":"https:\/\/www.robbinstbm.com\/#\/schema\/person\/5fb6775f0b2b170edca2e3bdc16be280","name":"Robbins","image":{"@type":"ImageObject","inLanguage":"es-ES","@id":"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2017\/04\/avatar_user_2_1493131025-96x96.png","url":"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2017\/04\/avatar_user_2_1493131025-96x96.png","contentUrl":"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2017\/04\/avatar_user_2_1493131025-96x96.png","caption":"Robbins"},"sameAs":["http:\/\/www.linkedin.com\/groups\/Robbins-TBM-4246982?trk=myg_ugrp_ovr"],"url":"https:\/\/www.robbinstbm.com\/es\/author\/the-robbins-company\/"}]}},"_links":{"self":[{"href":"https:\/\/www.robbinstbm.com\/es\/wp-json\/wp\/v2\/posts\/10316","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.robbinstbm.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.robbinstbm.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.robbinstbm.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.robbinstbm.com\/es\/wp-json\/wp\/v2\/comments?post=10316"}],"version-history":[{"count":0,"href":"https:\/\/www.robbinstbm.com\/es\/wp-json\/wp\/v2\/posts\/10316\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.robbinstbm.com\/es\/wp-json\/wp\/v2\/media\/10317"}],"wp:attachment":[{"href":"https:\/\/www.robbinstbm.com\/es\/wp-json\/wp\/v2\/media?parent=10316"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.robbinstbm.com\/es\/wp-json\/wp\/v2\/categories?post=10316"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.robbinstbm.com\/es\/wp-json\/wp\/v2\/tags?post=10316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}