{"id":19970,"date":"2024-04-23T11:52:22","date_gmt":"2024-04-23T09:52:22","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=19970"},"modified":"2024-04-23T11:55:12","modified_gmt":"2024-04-23T09:55:12","slug":"prevenint-inundacions","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/prevenint-inundacions\/","title":{"rendered":"Prevenint inundacions"},"content":{"rendered":"

\"\"Dilluns 22 d\u2019abril de 2024 les alumnes de Geologia i Ci\u00e8ncies Ambientals de 1r i 2n de Batxillerat de l\u2019Institut Francesc Ferrer i Gu\u00e0rdia<\/a> de Sant Joan Desp\u00ed es van proposar el repte de calcular l\u2019afectaci\u00f3 a tres ponts de Molins de Rei per possibles avingudes provinents de la Riera de Vallvidrera. El Camp d’Aprenentatge de Can Santoi<\/a> els ha acompanyat amb la proposta did\u00e0ctica: Com preveure el risc d’inundaci\u00f3 de la vall baixa de la riera de Vallvidrera?<\/a> La motivaci\u00f3 els va emp\u00e8nyer a con\u00e8ixer sobre el terreny com \u00e9s aquesta part del territori per tal de calcular el cabal m\u00e0xim que podria arribar just abans de la seva desembocadura al Riu Llobregat.<\/p>\n

La darrera inundaci\u00f3 d\u2019aquesta vall es va produir a la d\u00e8cada dels anys noranta, afectant diverses infraestructures com carreteres i vies ferrovi\u00e0ries. Els estudiants han emprat dades clim\u00e0tiques hist\u00f2riques, geogr\u00e0fiques i topogr\u00e0fiques de la conca fluvial i han efectuat c\u00e0lculs per a per\u00edodes de retorn de 100 i 500 anys.<\/p>\n

\"\"En primer lloc han estimat les \u00e0rees de pas dels tres ponts estudiats: el de la Comarcal C-1413A, el de Rodalies R-4 i el del Pol\u00edgon del Mol\u00ed. Seguidament, han aplicat m\u00e8todes de c\u00e0lcul algor\u00edtmics senzills i han utilitats els mapes que ofereix la Direcci\u00f3 General de Protecci\u00f3 Civil. Segons les mesures realitzades, la riera t\u00e9 uns 14 Km de longitud i la seva conca hidrogr\u00e0fica ocupa una \u00e0rea d\u2019uns 26 Km2<\/sup>. Pel que fa als seu cabal m\u00e0xim, podria assolir valors entre 300 i 400 m3<\/sup>\/s en episodis de pluges extraordin\u00e0ries, amb periodicitat de 100 i 500 anys respectivament.<\/p>\n

Amb els resultats obtinguts, han concl\u00f2s que cap dels tres ponts podria engolir l\u2019aigua que s\u2019acumularia en baixar cabals de retorn m\u00e0xims. Tot i emprar una aproximaci\u00f3 de c\u00e0lcul m\u00e9s simple que la que utilitzen els organismes p\u00fablics, l\u2019activitat t\u00e9 una gran aplicabilitat i permet reflexionar sobre les vulnerabilitats a les persones, als serveis del pol\u00edgon industrial i a les pr\u00f2pies infraestructures vi\u00e0ries.<\/p>\n

Us felicitem per la feina feta i esperem que hagueu gaudit d\u2019aquesta activitat!<\/p>\n","protected":false},"excerpt":{"rendered":"

Dilluns 22 d\u2019abril de 2024 les alumnes de Geologia i Ci\u00e8ncies Ambientals de 1r i 2n de Batxillerat de l\u2019Institut Francesc Ferrer i Gu\u00e0rdia de Sant Joan Desp\u00ed es van proposar el repte de calcular l\u2019afectaci\u00f3 a tres ponts de Molins de Rei per possibles avingudes provinents de la Riera de Vallvidrera. El Camp d’Aprenentatge […]<\/p>\n","protected":false},"author":3,"featured_media":19973,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[395,393,399,397,1,423,29],"tags":[],"class_list":["post-19970","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aprendreambelscampsientorns","category-campsientornsdaprenentatge","category-projectecda","category-sortidacda","category-general","category-inundacio","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/19970","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/comments?post=19970"}],"version-history":[{"count":6,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/19970\/revisions"}],"predecessor-version":[{"id":19988,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/19970\/revisions\/19988"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media\/19973"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=19970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=19970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=19970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}