{"version":"1.0","type":"rich","provider_name":"Site Pagestec","provider_url":"https:\/\/www.pagestec.org","title":"Un ouvrage d’art : le tunnel","author_name":"Xavier BIROCHEAU","width":"480","height":"295","url":"https:\/\/pagestec.org\/article2338.html","html":"\u003Ch4 class='title'\u003E\u003Ca href='https:\/\/pagestec.org\/article2338.html'\u003EUn ouvrage d’art : le tunnel\u003C\/a\u003E\u003C\/h4\u003E\u003Cblockquote class='spip'\u003E\n\u003Cp\u003EDans cette s\u00e9quence, les \u00e9l\u00e8ves vont rep\u00e9rer, \u00e0 partir d\u2019un plan de situation, les contraintes \u00e0 prendre en compte pour la construction d\u2019un ouvrage. Ils devront ensuite choisir l\u2019ouvrage le mieux...\u003C\/p\u003E\n\u003C\/blockquote\u003E\n"}