{"id":4682,"date":"2026-05-21T10:52:31","date_gmt":"2026-05-21T10:52:31","guid":{"rendered":"https:\/\/mediumorchid-fish-549029.hostingersite.com\/?post_type=projects&p=4682"},"modified":"2026-06-05T11:04:52","modified_gmt":"2026-06-05T11:04:52","slug":"construction-of-a-block-wall-taming-steep-slopes-and-fixing-stormwater-issues","status":"publish","type":"projects","link":"https:\/\/aprefontaine.com\/fr\/projects\/construction-of-a-block-wall-taming-steep-slopes-and-fixing-stormwater-issues\/","title":{"rendered":"Construction d'un mur en blocs : ma\u00eetriser les pentes abruptes et r\u00e9soudre les probl\u00e8mes de gestion des eaux pluviales"},"content":{"rendered":"
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Introduction<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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La propri\u00e9t\u00e9 pr\u00e9sentait des talus tr\u00e8s prononc\u00e9s qui rendaient l'entretien quotidien p\u00e9nible et, surtout, causaient des probl\u00e8mes de gestion des eaux pluviales. L'eau a le don de trouver le chemin qu'on n'avait pas pr\u00e9vu et, sur une pente, ce chemin finit souvent dans la cour du voisin ou contre une fondation. La solution s'est jou\u00e9e en deux temps, le drainage d'abord, puis un mur de blocs pour aplanir le terrain et retenir le nouveau profil.<\/p><\/div><\/article>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Le d\u00e9fi\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Le terrain descendait vers le trottoir municipal sur une longue pente difficile que la cl\u00f4ture grillag\u00e9e devait suivre, ce qui faisait serpenter la ligne et laissait une bande de cour presque impossible \u00e0 tondre de fa\u00e7on s\u00e9curitaire. \u00c0 chaque grosse pluie, le ruissellement traversait le terrain et finissait chez les voisins, donc le probl\u00e8me de gestion des eaux pluviales s'aggravait d'ann\u00e9e en ann\u00e9e au lieu de se r\u00e9gler tout seul.<\/p>

En plus de la pente comme telle, le sol le long de la limite de propri\u00e9t\u00e9 bougeait lentement depuis longtemps, et la cl\u00f4ture existante avait commenc\u00e9 \u00e0 pencher avec lui. Avant de poser quoi que ce soit de neuf, il fallait un plan qui retirait la charge du sol, redirigeait l'eau et redonnait au propri\u00e9taire une cour r\u00e9ellement utilisable de la porte arri\u00e8re jusqu'\u00e0 la haie de c\u00e8dres.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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La solution\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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La correction a \u00e9t\u00e9 planifi\u00e9e en deux phases coordonn\u00e9es, le drainage d'abord, puis un mur de blocs structural le long de la limite municipale pour figer un nouveau profil de niveau. Traiter le tout comme un seul syst\u00e8me, plut\u00f4t que d'ajouter simplement un mur de sout\u00e8nement, c'est ce qui permet au mur de faire son travail pendant des d\u00e9cennies sans se retrouver sous pression hydrostatique d\u00e8s le premier jour.<\/p>

Une fois le plan arr\u00eat\u00e9, nous avons s\u00e9quenc\u00e9 l'excavation pour que l'\u00e9quipe travaille du bas de la pente vers le haut, en d\u00e9pla\u00e7ant le sol, en pr\u00e9parant la base des blocs et en gardant un chemin de drainage propre et d\u00e9gag\u00e9 en tout temps. Ce s\u00e9quencement a gard\u00e9 le chantier s\u00e9curitaire \u00e0 parcourir et a permis aux \u00e9tapes suivantes, la pierre de drainage, le g\u00e9otextile, puis les blocs, de s'installer sans reprises.<\/p><\/article>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Pr\u00e9paration du drainage<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Avant la pose des blocs, nous avons mont\u00e9 un vrai syst\u00e8me de drainage \u00e0 l'arri\u00e8re et le long d'un c\u00f4t\u00e9 du terrain : un tuyau perfor\u00e9 dans de la pierre concass\u00e9e propre, envelopp\u00e9 d'une membrane g\u00e9otextile pour emp\u00eacher les fines d'entrer dans le syst\u00e8me. Le tuyau a \u00e9t\u00e9 raccord\u00e9 \u00e0 un rejet contr\u00f4l\u00e9, donc l'eau a toujours un chemin o\u00f9 aller, m\u00eame pendant la fonte printani\u00e8re la plus forte ou l'orage d'\u00e9t\u00e9 le plus intense.<\/p><\/article>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Base et construction du mur<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Le drainage en place, le mur de blocs a \u00e9t\u00e9 mont\u00e9 le long de la cl\u00f4ture municipale sur une base granulaire compact\u00e9e, chaque rang mis de niveau et bloqu\u00e9 au suivant pour que le mur se lise comme une structure unique et continue. Derri\u00e8re chaque rang, nous avons conserv\u00e9 la chemin\u00e9e de drainage en pierre concass\u00e9e envelopp\u00e9e de g\u00e9otextile, pour que l'eau qui atteint l'arri\u00e8re du mur descende et sorte plut\u00f4t que de pousser contre lui.<\/p><\/article>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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R\u00e9sultat final<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Le mur termin\u00e9 et l'arri\u00e8re remblay\u00e9 et nivel\u00e9, la pente qui se battait autrefois contre le propri\u00e9taire est devenue une cour plane et utilisable, pr\u00eate \u00e0 recevoir la terre v\u00e9g\u00e9tale et la tourbe. Vu du trottoir, le mur se lit comme une ligne propre et constante, et la cl\u00f4ture grillag\u00e9e peut enfin courir droite et de niveau le long de la limite municipale.<\/p>

Tout aussi important, les terrains voisins ne re\u00e7oivent plus le ruissellement venant de cette propri\u00e9t\u00e9, ce qui est habituellement le signe le plus discret qu'une correction des eaux pluviales fonctionne r\u00e9ellement. C'est un projet de petite envergure qui illustre \u00e0 quel point la qualit\u00e9 de vie au quotidien d\u00e9pend de la rigueur apport\u00e9e aux \u00e9tapes moins glamour, le drainage et le nivellement.<\/p><\/article>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\u00cates-vous un entrepreneur g\u00e9n\u00e9ral ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Nous sommes le partenaire de sous-traitance fiable que vous recherchez. Excavation, travaux de terrassement, g\u00e9nie civil. Parlons de votre prochain projet.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t<\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\tCONTACTEZ NOTRE \u00c9QUIPE COMMERCIALE<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\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\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Un jardin r\u00e9sidentiel en forte pente peut rapidement devenir difficile \u00e0 entretenir, dangereux et probl\u00e9matique lors de fortes pluies. Dans ce projet, le terrain pr\u00e9sentait un nivellement irr\u00e9gulier sur le c\u00f4t\u00e9 et \u00e0 l'arri\u00e8re, ce qui compliquait l'entretien de la pelouse et engendrait des probl\u00e8mes de ruissellement des eaux pluviales.<\/p>","protected":false},"featured_media":4684,"template":"","meta":{"_acf_changed":false,"_angie_page":false},"class_list":["post-4682","projects","type-projects","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nConstruction of a Block Wall: Taming Steep Slopes and Fixing Stormwater Issues - A. 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