{"id":44398,"date":"2024-10-23T16:43:55","date_gmt":"2024-10-23T14:43:55","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=article-foret-nature&#038;p=44398"},"modified":"2024-10-23T16:43:55","modified_gmt":"2024-10-23T14:43:55","slug":"a-propos-de-la-pression-exercee-par-les-pneus-chenilles-et-sabots","status":"publish","type":"article-foret-nature","link":"https:\/\/foretnature.be\/en\/article-foret-nature\/a-propos-de-la-pression-exercee-par-les-pneus-chenilles-et-sabots\/","title":{"rendered":"\u00c0 propos de la pression exerc\u00e9e par les pneus, chenilles et sabots"},"content":{"rendered":"<p>Les passages d\u2019engins de plus en plus lourds sur les sols forestiers am\u00e8nent les gestionnaires \u00e0 se poser des questions sur les impacts qu\u2019ils occasionnent. C\u2019est ici l\u2019importance des pressions \u00e9mises sur le sol par les diff\u00e9rents engins d\u2019exploitation qui est analys\u00e9e. La pression est un rapport de masse sur une surface. \u00c0 premi\u00e8re vue, les choses sont d\u00e8s lors assez simples. En r\u00e9alit\u00e9 il n\u2019en est rien car beaucoup de facteurs jouent sur l\u2019importance des pressions : la pression de gonflage des pneus, les caract\u00e9ristiques du sol, les mouvements des engins\u2026 Les pressions appliqu\u00e9es sur les sols peuvent \u00eatre largement sup\u00e9rieures \u00e0 la pression th\u00e9orique d\u00e9finie en divisant le poids de l\u2019engin par la surface normalement en contact avec le sol. Une autre chose importante pr\u00e9cis\u00e9e dans l\u2019article est que seule, la pression exerc\u00e9e sur le sol ne donne que tr\u00e8s peu d\u2019indication sur son incidence en profondeur. En effet, il est d\u00e9montr\u00e9 qu\u2019\u00e0 pression \u00e9gale, c\u2019est la surface de contact qui d\u00e9termine la profondeur de l\u2019impact. En conclusion, pour les diff\u00e9rents outils utilis\u00e9s en for\u00eat on peut dire que : la pression exerc\u00e9e sur le sol par un pneu est tr\u00e8s variable et diff\u00e9rente de la pression de gonflage de celui-ci ; la pression exerc\u00e9e par le sabot d\u2019un cheval est relativement \u00e9lev\u00e9e mais vu la petite taille de la surface de contact, les impacts en profondeur sont n\u00e9gligeables ; les engins chenill\u00e9s \u00e9mettent des pressions moyennes assez faibles sur le sol mais la rigidit\u00e9 des chenilles peut induire des pressions localis\u00e9es tr\u00e8s importantes.<\/p>","protected":false},"excerpt":{"rendered":"<p>Les passages d\u2019engins de plus en plus lourds sur les sols forestiers am\u00e8nent les gestionnaires \u00e0 se poser des questions sur les impacts qu\u2019ils occasionnent. C\u2019est ici l\u2019importance des pressions \u00e9mises sur le sol par les diff\u00e9rents engins d\u2019exploitation qui est analys\u00e9e. La pression est un rapport de masse sur une surface. \u00c0 premi\u00e8re vue, [&hellip;]<\/p>","protected":false},"featured_media":0,"template":"","categories":[49],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00c0 propos de la pression exerc\u00e9e par les pneus, chenilles et sabots - For\u00eat.Nature<\/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:\/\/foretnature.be\/en\/article-foret-nature\/a-propos-de-la-pression-exercee-par-les-pneus-chenilles-et-sabots\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c0 propos de la pression exerc\u00e9e par les pneus, chenilles et sabots - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Les passages d\u2019engins de plus en plus lourds sur les sols forestiers am\u00e8nent les gestionnaires \u00e0 se poser des questions sur les impacts qu\u2019ils occasionnent. C\u2019est ici l\u2019importance des pressions \u00e9mises sur le sol par les diff\u00e9rents engins d\u2019exploitation qui est analys\u00e9e. 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