{"id":782,"date":"2015-07-21T15:52:56","date_gmt":"2015-07-21T15:52:56","guid":{"rendered":"http:\/\/ground.geophysicsgpr.com\/?page_id=782"},"modified":"2017-02-28T21:07:14","modified_gmt":"2017-02-28T21:07:14","slug":"sismique-en-forage","status":"publish","type":"page","link":"https:\/\/ground.geophysicsgpr.com\/fr\/techniques-de-geophysique-terrestre\/methodes-sismiques-de-geophysique\/sismique-en-forage","title":{"rendered":"Sismique en forage"},"content":{"rendered":"<div id=\"pl-782\"  class=\"panel-layout\" ><div id=\"pg-782-0\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-782-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-782-0-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"0\" ><div class=\"texte-home-right article panel-widget-style panel-widget-style-for-782-0-0-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\"\n\t\t\t\n\t\t>\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<h2 class=\"h2resize\">Mesures sismiques le long d'un trou de forage (sismique en forage)<\/h2>\n<p>La sismique en forage consiste \u00e0 prendre des mesures sismiques le long d'un trou de forage en \u00e9mettant des ondes sismiques en surface (m\u00e9thode \u00ab down-hole \u00bb) ou dans un autre forage (m\u00e9thode \u00ab cross-hole \u00bb). \u00c0 l'aide de g\u00e9ophones \u00e0 3 composantes, il est possible d'obtenir des profils des vitesses des ondes en compression (P) et des ondes de cisaillement (S). Ces vitesses sont utiles pour d\u00e9terminer la qualit\u00e9 du roc et des ouvrages en b\u00e9ton, car elles permettent d'en calculer\u00a0les coefficients dynamiques.<\/p>\n<p>Les techniques de g\u00e9ophysique terrestre telles que la sismique en forage comprennent les profils sismiques verticaux (down-hole), les diagraphies puits-\u00e0-puits (cross-hole) et les m\u00e9thodes de tomographie sismique.<\/p>\n<p><b>Les applications des techniques de g\u00e9ophysique terrestre telles que la sismique en forage comprennent:<\/b><\/p>\n<ul>\n<li>Le calcul des modules \u00e9lastiques et des propri\u00e9t\u00e9s dynamiques du roc et du sol;<\/li>\n<li>Le calcul du Vs30 pour la cat\u00e9gorisation d'emplacements ( Code national du b\u00e2timent );<\/li>\n<li>Le contr\u00f4le de qualit\u00e9 pour des r\u00e9fections\u00a0de structures;<\/li>\n<li>La d\u00e9tection des failles, des zones de cisaillement et des vides;<\/li>\n<li>Les \u00e9tudes pr\u00e9 et postinjection ou cimentation;<\/li>\n<li>L'\u00e9valuation quantitative des mat\u00e9riaux par l'analyse des vitesses sismiques ( par exemple: utilisation de la vitesse des ondes P pour estimer la rippabilit\u00e9 ou le MRQD );<\/li>\n<li>La localisation de zones probl\u00e9matiques par panneaux de 2-D ou 3-D;<\/li>\n<li>Les sondages des vitesses de propagation des ondes de compression et de cisaillement.<\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>Pour plus d'information, veuillez contacter notre <a href=\"mailto:daniel.campos@geophysicsgpr.com;jean-luc.arsenault@geophysicsgpr.com;claude.robillard@geophysicsgpr.com;info@geophysicsgpr.com\">\u00c9quipe de Lev\u00e9 Terrestre<\/a>.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div id=\"pg-782-1\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-782-1-0\"  class=\"panel-grid-cell\" ><div id=\"panel-782-1-0-0\" class=\"so-panel widget widget_sow-image panel-first-child panel-last-child\" data-index=\"1\" ><div class=\"panel-widget-style panel-widget-style-for-782-1-0-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-image so-widget-sow-image-default-8b5b6f678277-782\"\n\t\t\t\n\t\t>\n<div class=\"sow-image-container\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ground.geophysicsgpr.com\/wp-content\/uploads\/sites\/7\/2015\/07\/tech_borehole2.jpg\" width=\"222\" height=\"212\" sizes=\"auto, (max-width: 222px) 100vw, 222px\" title=\"Sismique en forage\" alt=\"Sismique en forage\" \t\tclass=\"so-widget-image\"\/>\n\t<\/div>\n\n<\/div><\/div><\/div><\/div><div id=\"pgc-782-1-1\"  class=\"panel-grid-cell panel-grid-cell-mobile-last\" ><div id=\"panel-782-1-1-0\" class=\"so-panel widget widget_sow-image panel-first-child panel-last-child\" data-index=\"2\" ><div class=\"panel-widget-style panel-widget-style-for-782-1-1-0\" ><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-image so-widget-sow-image-default-8b5b6f678277-782\"\n\t\t\t\n\t\t>\n<div class=\"sow-image-container\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ground.geophysicsgpr.com\/wp-content\/uploads\/sites\/7\/2015\/07\/Ground_Techniques_Downhole-Method.jpg\" width=\"225\" height=\"187\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" title=\"Ground Techniques Downhole Method\" alt=\"Ground Techniques Downhole Method\" \t\tclass=\"so-widget-image\"\/>\n\t<\/div>\n\n<\/div><\/div><\/div><\/div><div id=\"pgc-782-1-2\"  class=\"panel-grid-cell panel-grid-cell-empty\" ><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Mesures sismiques le long d&rsquo;un trou de forage (sismique en forage)La sismique en forage consiste \u00e0 prendre des mesures sismiques le long d&rsquo;un trou de forage en \u00e9mettant des ondes sismiques en surface (m\u00e9thode \u00ab down-hole \u00bb) ou dans un autre forage (m\u00e9thode \u00ab cross-hole \u00bb). \u00c0 l&rsquo;aide de g\u00e9ophones \u00e0 3 composantes, il est&#8230;  <a href=\"https:\/\/ground.geophysicsgpr.com\/fr\/techniques-de-geophysique-terrestre\/methodes-sismiques-de-geophysique\/sismique-en-forage\" class=\"more-link\" title=\"Read Sismique en forage\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":1118,"parent":735,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-full-width.php","meta":{"content-type":"","footnotes":""},"class_list":["post-782","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/ground.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/pages\/782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ground.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ground.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ground.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ground.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/comments?post=782"}],"version-history":[{"count":1,"href":"https:\/\/ground.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/pages\/782\/revisions"}],"predecessor-version":[{"id":3006,"href":"https:\/\/ground.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/pages\/782\/revisions\/3006"}],"up":[{"embeddable":true,"href":"https:\/\/ground.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/pages\/735"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ground.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/media\/1118"}],"wp:attachment":[{"href":"https:\/\/ground.geophysicsgpr.com\/fr\/wp-json\/wp\/v2\/media?parent=782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}