{"id":8887,"date":"2017-06-05T13:46:03","date_gmt":"2017-06-05T20:46:03","guid":{"rendered":"http:\/\/robbinstbm.com\/?p=8887\/"},"modified":"2017-07-10T13:46:21","modified_gmt":"2017-07-10T20:46:21","slug":"andeantunneling","status":"publish","type":"post","link":"https:\/\/www.robbinstbm.com\/ru\/andeantunneling\/","title":{"rendered":"High Cover TBM Tunneling in the Andes Mountains\u2014A Comparative Study of Two Challenging Tunnel Projects in Chile"},"content":{"rendered":"<p>The Andes Mountain range is among the youngest and most complex in the world, geologically speaking. Tunneling projects, particularly for hydroelectric and water transfer schemes, are not new to the range but their past history has met with mixed success. Two new projects utilizing very different tunnel boring machines and excavation strategies are now providing a testing ground for modern underground construction equipment in the Chilean Andes.<\/p>\n<p>This paper will analyze two projects: the Alto Maipo and Los Condores Hydroelectric Projects, located approximately 100 km apart in the Andes Mountains. The two strategies being employed will be analyzed in detail, as one project is using an open-type Main Beam TBM plus extensive ground support, while the other is utilizing a Double Shield TBM and segmental lining. The authors will look at TBM performance and ground conditions encountered in the two tunnels and what effects the TBM selection and ground support strategy may have had on each tunneling operation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Andes Mountain range is among the youngest and most complex in the world, geologically speaking. Two new projects utilizing very different tunnel boring machines and excavation strategies are now providing a testing ground for modern underground construction equipment in the Chilean Andes.<\/p>\n","protected":false},"author":10,"featured_media":8889,"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-8887","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-white-papers"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>High Cover TBM Tunneling in the Andes Mountains\u2014A Comparative Study of Two Challenging Tunnel Projects in Chile - 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\/andeantunneling\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"High Cover TBM Tunneling in the Andes Mountains\u2014A Comparative Study of Two Challenging Tunnel Projects in Chile - Robbins\" \/>\n<meta property=\"og:description\" content=\"The Andes Mountain range is among the youngest and most complex in the world, geologically speaking. Two new projects utilizing very different tunnel boring machines and excavation strategies are now providing a testing ground for modern underground construction equipment in the Chilean Andes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.robbinstbm.com\/andeantunneling\/\" \/>\n<meta property=\"og:site_name\" content=\"Robbins\" \/>\n<meta property=\"article:published_time\" content=\"2017-06-05T20:46:03+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2017-07-10T20:46:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.robbinstbm.com\/wp-content\/uploads\/2017\/07\/DSC06584.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2896\" \/>\n\t<meta property=\"og:image:height\" content=\"1936\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Sarah Crawford\" \/>\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=\"Sarah Crawford\" \/>\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\\\/andeantunneling\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/andeantunneling\\\/\"},\"author\":{\"name\":\"Sarah Crawford\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#\\\/schema\\\/person\\\/499076d37f572217dede2731f15ba4a2\"},\"headline\":\"High Cover TBM Tunneling in the Andes Mountains\u2014A Comparative Study of Two Challenging Tunnel Projects in Chile\",\"datePublished\":\"2017-06-05T20:46:03+00:00\",\"dateModified\":\"2017-07-10T20:46:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/andeantunneling\\\/\"},\"wordCount\":175,\"publisher\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/andeantunneling\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.robbinstbm.com\\\/wp-content\\\/uploads\\\/2017\\\/07\\\/DSC06584.jpg\",\"articleSection\":[\"White Papers\"],\"inLanguage\":\"ru-RU\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.robbinstbm.com\\\/andeantunneling\\\/\",\"url\":\"https:\\\/\\\/www.robbinstbm.com\\\/andeantunneling\\\/\",\"name\":\"High Cover TBM Tunneling in the Andes Mountains\u2014A Comparative Study of Two Challenging Tunnel Projects in Chile - 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