{"id":18458,"date":"2017-02-26T15:51:43","date_gmt":"2017-02-26T22:51:43","guid":{"rendered":"https:\/\/www.boartlongyear.com\/?p=18458"},"modified":"2025-03-10T14:09:22","modified_gmt":"2025-03-10T20:09:22","slug":"sonic-drilling-works","status":"publish","type":"post","link":"https:\/\/www.boartlongyear.com\/fr\/insite\/sonic-drilling-works\/","title":{"rendered":"Comment fonctionne le forage sonique"},"content":{"rendered":"
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Cette histoire a \u00e9t\u00e9 publi\u00e9e \u00e0 l'origine dans GeoDrilling International<\/a> le 19 mars 2019<\/p>\n<\/div><\/span><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section>

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Sonic Drilling<\/span><\/span><\/h1>
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Sonic est une forme de forage avanc\u00e9e qui utilise l\u2019\u00e9nergie de r\u00e9sonance haute fr\u00e9quence g\u00e9n\u00e9r\u00e9e \u00e0 l\u2019int\u00e9rieur de la t\u00eate Sonic pour faire avancer un carottier ou un carter dans des formations souterraines. Pendant le forage, l\u2019\u00e9nergie de r\u00e9sonance est transf\u00e9r\u00e9e dans le train de tiges \u00e0 la face du tr\u00e9pan \u00e0 diverses fr\u00e9quences Sonic. La rotation simultan\u00e9e du train de tiges r\u00e9partit uniform\u00e9ment l'\u00e9nergie et l'impact au niveau de la face du tr\u00e9pan.<\/p>\n<\/div><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section>

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L'\u00e9nergie de r\u00e9sonance est g\u00e9n\u00e9r\u00e9e \u00e0 l'int\u00e9rieur de la t\u00eate Sonic par deux poids \u00e0 contre-rotation. Un syst\u00e8me d'isolation pneumatique \u00e0 l'int\u00e9rieur de la t\u00eate Sonic emp\u00eache la transmission de l'\u00e9nergie r\u00e9sonnante \u00e0 l'appareil de forage et dirige de pr\u00e9f\u00e9rence l'\u00e9nergie vers le train de tiges.<\/p>\n

Le foreur contr\u00f4le l'\u00e9nergie de r\u00e9sonance g\u00e9n\u00e9r\u00e9e par l'oscillateur de la t\u00eate Sonic afin de l'adapter \u00e0 la formation rencontr\u00e9e afin d'obtenir une productivit\u00e9 de forage maximale. Une r\u00e9sonance se produit lorsque l\u2019\u00e9nergie sonique r\u00e9sonnante co\u00efncide avec la fr\u00e9quence naturelle du train de tiges. Cela se traduit par la quantit\u00e9 maximale d'\u00e9nergie livr\u00e9e au visage. Dans le m\u00eame temps, le frottement du sol imm\u00e9diatement adjacent \u00e0 l'ensemble du train de forage est sensiblement minimis\u00e9, ce qui entra\u00eene des taux de p\u00e9n\u00e9tration rapides.<\/p>\n<\/div>

La proc\u00e9dure de forage sonique<\/span><\/h2>
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Bien qu'il existe plusieurs fa\u00e7ons de forer avec Sonic (en fonction des conditions sp\u00e9cifiques du site et des objectifs du projet), le moyen le plus courant consiste \u00e0 faire avancer un carottier, qui est remplac\u00e9 par un train de tailleur de plus grand diam\u00e8tre qui recouvre le trou de forage ouvert et emp\u00eache son effondrement.<\/p>\n<\/div><\/div>

Diagramme d'oscillateur sonique<\/span><\/h3>
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\u00c9TAPE 1: AVANCEMENT DU BARIL DE BASE<\/span><\/h3>
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Le noyau est avanc\u00e9 en utilisant des fr\u00e9quences sonores. Si n\u00e9cessaire, cette \u00e9tape peut \u00eatre effectu\u00e9e sans fluide, air ou boue.<\/p>\n<\/div><\/div>

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\u00c9TAPE 2: RUPTURE DE BO\u00ceTIER<\/span><\/h3>
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Une fois que le carottier est en place, le tubage est avanc\u00e9 par voie acoustique sur le carottier, prot\u00e9geant ainsi l\u2019int\u00e9grit\u00e9 du trou de forage dans un sol meuble non consolid\u00e9.<\/p>\n<\/div><\/div>

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\u00c9TAPE 3: R\u00c9CUP\u00c9RATION DE BASE<\/span><\/h3>
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Le carottier est r\u00e9cup\u00e9r\u00e9, produisant un \u00e9chantillon relativement non perturb\u00e9 avec une r\u00e9cup\u00e9ration du c\u0153ur proche de 100%.<\/p>\n<\/div><\/div>

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\u00c9TAPE 4 - R\u00c9P\u00c9TITION DE L'AVANCEMENT DE BASE<\/span><\/h3>
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Les \u00e9tapes 1 \u00e0 3 sont r\u00e9p\u00e9t\u00e9es jusqu'\u00e0 la profondeur, produisant un \u00e9chantillon central continu au travers de formations non consolid\u00e9es avec un \u00e9cart inf\u00e9rieur \u00e0 1%.<\/p>\n<\/div><\/div>

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Besoin d'en savoir plus sur le forage sonique? En savoir plus sur le LS250 MiniSonic<\/a><\/p>\n<\/div><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":66,"featured_media":18375,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[139],"tags":[154],"class_list":["post-18458","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-mining","tag-sonic","insitetype-drilling-innovation","insitetype-field-experts"],"acf":[],"yoast_head":"\nHow Sonic Drilling Works - Boart Longyear<\/title>\n<meta name=\"description\" content=\"Sonic Drilling is an advanced form of drilling which employs the use of high-frequency, resonant energy generated inside the Sonic 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