{"id":18914,"date":"2021-06-04T12:41:45","date_gmt":"2021-06-04T19:41:45","guid":{"rendered":"https:\/\/www.bgcengineering.ca\/portfolio\/donlin-gold-llc\/"},"modified":"2024-08-29T22:07:51","modified_gmt":"2024-08-30T05:07:51","slug":"donlin-gold-llc","status":"publish","type":"portfolio","link":"https:\/\/www.bgcengineering.ca\/fr\/portfolio\/donlin-gold-llc\/","title":{"rendered":"Donlin Gold LLC"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"18914\" class=\"elementor elementor-18914 elementor-2865\" 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data-elementor-post-type=\"portfolio\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-71161cb elementor-section-full_width elementor-section-height-min-height elementor-section-content-middle elementor-section-height-default elementor-section-items-middle\" data-id=\"71161cb\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-23a678a9\" data-id=\"23a678a9\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-29d9e0bd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"29d9e0bd\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-41c837e2\" data-id=\"41c837e2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1648562a elementor-widget elementor-widget-vc_custom_heading\" data-id=\"1648562a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"vc_custom_heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\" vc_custom_heading  consulting_heading_font  text_align_center title_no_stripe\" ><h2 style=\"font-size: 25px;text-align: center\" class=\"consulting-custom-title\">PROFIL DU PROJET\n<\/h2><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-083108c e-flex e-con-boxed e-con e-parent\" data-id=\"083108c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-fe3d286 e-con-full e-flex e-con e-child\" data-id=\"fe3d286\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-318f78c elementor-widget elementor-widget-text-editor\" data-id=\"318f78c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>CLIENT : Donlin Gold LLC<\/p>\n<p>LIEU : Sud-ouest de l&#8217;Alaska, \u00c9tats-Unis<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d7a95c9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"d7a95c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-93a65ee elementor-widget elementor-widget-text-editor\" data-id=\"93a65ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Donlin Gold propose d&#8217;exploiter une mine d&#8217;or \u00e0 ciel ouvert en roche dure dans le sud-ouest de l&#8217;Alaska. BGC a \u00e9t\u00e9 charg\u00e9 de recueillir des donn\u00e9es g\u00e9otechniques, hydrologiques et hydrog\u00e9ologiques afin de soutenir et d&#8217;entreprendre la conception de la mine \u00e0 ciel ouvert, du site de planification, de l&#8217;installation de traitement des st\u00e9riles, des barrages de contact et d&#8217;eau douce, ainsi que de l&#8217;installation de stockage des r\u00e9sidus. L&#8217;implication de BGC a commenc\u00e9 en 2003 pour Placer Dome par l&#8217;examen des plans PFS existants, et s&#8217;est poursuivie apr\u00e8s le rachat de Placer Dome par Barrick en 2006. L&#8217;\u00e9tude de faisabilit\u00e9 a \u00e9t\u00e9 achev\u00e9e en 2007 et la mise \u00e0 jour la plus r\u00e9cente a \u00e9t\u00e9 r\u00e9alis\u00e9e en 2011. Le projet en est au stade de la proc\u00e9dure d&#8217;autorisation et notre mission consiste actuellement \u00e0 soutenir l&#8217;\u00e9tude d&#8217;impact sur l&#8217;environnement et les premi\u00e8res \u00e9tapes de la proc\u00e9dure d&#8217;autorisation du barrage.  <\/p>\n<p>BGC a d\u00e9velopp\u00e9 un mod\u00e8le 3D d&#8217;\u00e9coulement des eaux souterraines \u00e0 l&#8217;\u00e9chelle r\u00e9gionale en utilisant MODFLOW-SURFACT pour soutenir le projet depuis les \u00e9tudes de pr\u00e9faisabilit\u00e9 jusqu&#8217;\u00e0 la pr\u00e9paration de l&#8217;\u00e9tude d&#8217;impact sur l&#8217;environnement. Le mod\u00e8le a \u00e9t\u00e9 int\u00e9gr\u00e9 \u00e0 un mod\u00e8le de bilan hydrique bas\u00e9 <sup>sur<\/sup> ExcelTM pour l&#8217;ensemble du site et les deux ont \u00e9t\u00e9 utilis\u00e9s pour \u00e9laborer un plan de gestion de l&#8217;eau sur l&#8217;ensemble du cycle de vie du projet et pour \u00e9valuer les interactions entre les eaux de surface et les eaux souterraines pendant toute la dur\u00e9e de vie de la mine et apr\u00e8s la fermeture de la mine. Les \u00e9valuations et les conceptions de l&#8217;ass\u00e8chement et de la d\u00e9pressurisation des pentes de la mine \u00e0 ciel ouvert au niveau de la faisabilit\u00e9 ont \u00e9t\u00e9 r\u00e9alis\u00e9es en \u00e9troite collaboration avec le groupe g\u00e9otechnique de la mine \u00e0 ciel ouvert, en s&#8217;appuyant sur le mod\u00e8le \u00e0 l&#8217;\u00e9chelle r\u00e9gionale en conjonction avec un mod\u00e8le transversal \u00e0 l&#8217;\u00e9chelle de la mine en 3D d\u00e9velopp\u00e9 dans FEFLOW. Un mod\u00e8le 3D d&#8217;\u00e9coulement des eaux souterraines \u00e0 grande \u00e9chelle r\u00e9gionale (des centaines de kilom\u00e8tres) a \u00e9galement \u00e9t\u00e9 construit pour r\u00e9pondre aux demandes d&#8217;informations compl\u00e9mentaires formul\u00e9es par les autorit\u00e9s de r\u00e9glementation au cours de l&#8217;EIE. Un mod\u00e8le HydroGeoSphere 1D a \u00e9t\u00e9 d\u00e9velopp\u00e9 pour estimer les taux d&#8217;infiltration et de ruissellement pour une vari\u00e9t\u00e9 de sc\u00e9narios de stockage de r\u00e9sidus propos\u00e9s. Les incidences du projet sur les syst\u00e8mes d&#8217;\u00e9coulement des eaux de surface et des eaux souterraines ont \u00e9t\u00e9 \u00e9valu\u00e9es.  <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2a5032d e-con-full e-flex e-con e-child\" data-id=\"2a5032d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d0a2188 elementor-widget elementor-widget-image\" data-id=\"d0a2188\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" data-src=\"https:\/\/www.bgcengineering.ca\/wp-content\/uploads\/2021\/06\/Donlin-Gold-July-10-2013-021-scaled-e1629391220151-1024x778.jpg\" data-srcset=\"https:\/\/www.bgcengineering.ca\/wp-content\/uploads\/2021\/06\/Donlin-Gold-July-10-2013-021-scaled-e1629391220151-1024x778.jpg 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1024px\"><\/noscript>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c6d0388 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c6d0388\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-edb2e1d\" data-id=\"edb2e1d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-16868b9 elementor-align-center elementor-widget elementor-widget-global elementor-global-9118 elementor-widget-button\" data-id=\"16868b9\" data-element_type=\"widget\" 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Nous sommes experts dans la caract\u00e9risation et l&#8217;int\u00e9gration des facteurs g\u00e9ologiques qui affectent l&#8217;emplacement, la conception, la construction, l&#8217;exploitation et la maintenance des ouvrages d&#8217;art.<\/p>\n","protected":false},"author":9,"featured_media":18915,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","ghostkit_customizer_options":"","ghostkit_custom_css":"","ghostkit_custom_js_head":"","ghostkit_custom_js_foot":"","ghostkit_typography":"","_vp_format_video_url":"","_vp_image_focal_point":[],"_vp_custom_popup_image":0,"_vp_format_audio_url":"","_vp_album_images":[],"_vp_custom_thumbnail":0,"_vp_custom_thumbnail_focal_point":[],"_vp_custom_thumbnail_cover":0,"_vp_hover_thumbnail":0,"_vp_hover_thumbnail_focal_point":[],"footnotes":"","_members_access_role":[],"_members_access_error":""},"portfolio_category":[563,566,579,580,582],"portfolio_tag":[],"class_list":["post-18914","portfolio","type-portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-projets","portfolio_category-changement-climatique","portfolio_category-eaux-souterraines","portfolio_category-hydrogeologie-miniere","portfolio_category-fermeture-de-la-mine"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Donlin Gold LLC - BGC Engineering<\/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.bgcengineering.ca\/portfolio\/donlin-gold-water-resources-management-plan\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Donlin Gold LLC\" \/>\n<meta property=\"og:description\" content=\"L&#039;application des sciences g\u00e9ologiques \u00e0 la pratique de l&#039;ing\u00e9nierie est fondamentale pour BGC. 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