{"id":2063,"date":"2023-01-25T08:22:46","date_gmt":"2023-01-25T08:22:46","guid":{"rendered":"https:\/\/www.eccus.es\/mesurament-de-laforament-de-cabal-al-riu-lladorre\/"},"modified":"2024-02-07T08:17:45","modified_gmt":"2024-02-07T08:17:45","slug":"mesurament-de-laforament-de-cabal-al-riu-lladorre","status":"publish","type":"post","link":"https:\/\/www.eccus.es\/ca\/mesurament-de-laforament-de-cabal-al-riu-lladorre\/","title":{"rendered":"Mesurament de l&#8217;aforament de cabal al riu Lladorre"},"content":{"rendered":"<p>[et_pb_section fb_built=\u00bb1&#8243; custom_padding_last_edited=\u00bbon|desktop\u00bb admin_label=\u00bbsection\u00bb _builder_version=\u00bb4.16&#8243; custom_padding=\u00bb0px||0px|||\u00bb custom_padding_tablet=\u00bb50px|0|50px|0&#8243; custom_padding_phone=\u00bb\u00bb transparent_background=\u00bboff\u00bb padding_mobile=\u00bboff\u00bb make_fullwidth=\u00bboff\u00bb use_custom_width=\u00bboff\u00bb width_unit=\u00bbon\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_row padding_mobile=\u00bboff\u00bb column_padding_mobile=\u00bbon\u00bb admin_label=\u00bbrow\u00bb _builder_version=\u00bb4.16&#8243; background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb custom_margin=\u00bb|auto|-6px|auto||\u00bb custom_padding=\u00bb0px||8px|||\u00bb make_fullwidth=\u00bboff\u00bb use_custom_width=\u00bboff\u00bb width_unit=\u00bbon\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.16&#8243; custom_padding=\u00bb|||\u00bb global_colors_info=\u00bb{}\u00bb custom_padding__hover=\u00bb|||\u00bb][et_pb_text _builder_version=\u00bb4.18.0&#8243; text_font=\u00bb|on|||\u00bb text_text_color=\u00bb#4f8b0d\u00bb text_font_size=\u00bb22&#8243; header_font=\u00bb|700|||||||\u00bb header_text_color=\u00bb#4f8b0d\u00bb header_font_size=\u00bb28px\u00bb header_line_height=\u00bb1.2em\u00bb background_color=\u00bbrgba(255,255,255,0.14)\u00bb background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb custom_padding=\u00bb||2px|||\u00bb header_text_color_tablet=\u00bb#4f8b0d\u00bb header_text_color_phone=\u00bb#4f8b0d\u00bb header_text_color_last_edited=\u00bbon|phone\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<h1><strong>Mesurament de l&#8217;aforament de cabal al riu Lladorre<\/strong><\/h1>\n<p>[\/et_pb_text][et_pb_text admin_label=\u00bbTitol\u00bb _builder_version=\u00bb4.18.0&#8243; text_font=\u00bb|on|||\u00bb text_text_color=\u00bb#3f3f3f\u00bb text_font_size=\u00bb18&#8243; header_text_align=\u00bbjustify\u00bb header_2_font_size=\u00bb18px\u00bb header_2_line_height=\u00bb1.1em\u00bb background_color=\u00bbrgba(255,255,255,0.14)\u00bb background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb text_orientation=\u00bbjustified\u00bb custom_margin=\u00bb||7px|||\u00bb custom_padding=\u00bb||7px|||\u00bb link_option_url=\u00bbo\u00bb use_border_color=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<h2><strong>Treballs d&#8217;Aforament de Cabal al riu Lladorre, aig\u00fces avall de la presa de Tavascan.<\/strong><\/h2>\n<p>[\/et_pb_text][et_pb_text admin_label=\u00bbTitol\u00bb _builder_version=\u00bb4.18.0&#8243; text_font=\u00bb|on|||\u00bb text_text_color=\u00bb#3f3f3f\u00bb text_font_size=\u00bb18&#8243; header_text_align=\u00bbjustify\u00bb header_2_font_size=\u00bb18px\u00bb header_2_line_height=\u00bb1.1em\u00bb background_color=\u00bbrgba(255,255,255,0.14)\u00bb background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb text_orientation=\u00bbjustified\u00bb custom_padding=\u00bb||22px|||\u00bb link_option_url=\u00bbo\u00bb use_border_color=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<p><strong>Mesuraments de les velocitats de l&#8217;aigua en riu per a calcular el cabal circulant en un moment donat.<\/strong><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.18.0&#8243; text_font_size=\u00bb16px\u00bb text_line_height=\u00bb1.8em\u00bb header_2_font=\u00bb|700|||||||\u00bb header_2_font_size=\u00bb18px\u00bb text_orientation=\u00bbjustified\u00bb min_height=\u00bb2px\u00bb custom_margin=\u00bb-29px|||||\u00bb custom_padding=\u00bb||0px|||\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<p>Per a con\u00e8ixer el <strong>cabal circulant<\/strong> en un tram de riu en un moment puntual, es requereix dur a terme l&#8217;<strong>aixecament d&#8217;una secci\u00f3 del riu<\/strong>, en la qual es defineix la seva topografia (profunditats, irregularitats del llit, etc.) i, simult\u00e0niament, procedir al <strong>mesurament de la velocitat de l&#8217;aigua<\/strong> en aquesta secci\u00f3.<\/p>\n<p>Per a aix\u00f2 existeixen diverses metodologies entre les quals es troben els m\u00e8todes tradicionals de tra\u00e7at de verticals i mesurament de la velocitat a diverses profunditats; fins als m\u00e8todes de mesurament integrat que utilitzen els <strong>equips perfil\u00b7ladors o ADCP<\/strong>.<\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/www.eccus.es\/wp-content\/uploads\/2023\/01\/Medicion-de-las-velocidades-a-distintas-profundidades-con-molinete-en-la-primera-seccion-ECCUS.jpg\u00bb alt=\u00bbMesurament de les velocitats a diferents profunditats amb molinet a la primera secci\u00f3 ECCUS\u00bb title_text=\u00bbMesurament de les velocitats a diferents profunditats amb molinet a la primera secci\u00f3 ECCUS\u00bb admin_label=\u00bbPasteral II\u00bb _builder_version=\u00bb4.18.0&#8243; custom_margin=\u00bb||11px|||\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.23.4&#8243; header_3_font_size=\u00bb14px\u00bb hover_enabled=\u00bb0&#8243; global_colors_info=\u00bb{}\u00bb sticky_enabled=\u00bb0&#8243;]<\/p>\n<h3><strong><em>Mesurament de les velocitats a diferents profunditats mitjan\u00e7ant el m\u00e8tode tradicional per punts<\/em><\/strong><\/h3>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00bb4.16&#8243; custom_padding=\u00bb7px|||||\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4&#8243; _builder_version=\u00bb4.16&#8243; global_colors_info=\u00bb{}\u00bb][et_pb_text _builder_version=\u00bb4.18.0&#8243; text_font_size=\u00bb16px\u00bb text_line_height=\u00bb1.8em\u00bb header_2_font=\u00bb|700|||||||\u00bb header_2_font_size=\u00bb18px\u00bb text_orientation=\u00bbjustified\u00bb min_height=\u00bb2px\u00bb custom_margin=\u00bb21px|||||\u00bb custom_padding=\u00bb||0px|||\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<p>La construcci\u00f3 d&#8217;infraestructures per a l&#8217;aprofitament de l&#8217;aigua dels rius (p. ex. preses, assuts, preses de canals, etc.) afecta al cabal circulant en els trams situats aig\u00fces avall d&#8217;aquestes, motiu pel qual, en els \u00faltims anys, els Plans Hidrol\u00f2gics de les conques, entre altres aspectes, tenen com un dels seus objectius definir cabals ecol\u00f2gics que assegurin el manteniment del bon estat ecol\u00f2gic dels rius.<\/p>\n<p>En aquest sentit, a la presa de Tavascan es va procedir a la instal\u00b7laci\u00f3 d&#8217;un cabal\u00edmetre per a l&#8217;establiment i control del cabal ecol\u00f2gic aig\u00fces avall de la presa.<\/p>\n<p>Amb la finalitat de corroborar les lectures de cabal registrades pel cabal\u00edmetre instal\u00b7lat, ECCUS va procedir a la realitzaci\u00f3 de <strong>treballs d&#8217;aforament<\/strong> en el tram de riu Lladorre aig\u00fces avall de la presa de Tavascan.<\/p>\n<p><strong>Per a aix\u00f2 es van tra\u00e7ar dues seccions diferents: la primera es va situar el m\u00e9s pr\u00f2xima possible al peu de presa i que reun\u00eds les millors condicions per a la realitzaci\u00f3 de mesuraments (regularitat del llit, continu\u00eftat transversal, etc.); la segona es va situar en una antiga estaci\u00f3 d&#8217;aforament.<\/strong><\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/www.eccus.es\/wp-content\/uploads\/2023\/01\/Trabajos-de-aforo-en-la-segunda-seccion-mediante-el-empleo-de-un-perfilador-Doppler-ADCP-y-procesado-de-datos.jpg\u00bb alt=\u00bbTreballs d&#8217;aforament en la segona secci\u00f3 mitjan\u00e7ant l&#8217;\u00fas d&#8217;un perfil\u00b7lador Doppler ADCP i processament de dades.\u00bb title_text=\u00bbTreballs d&#8217;aforament en la segona secci\u00f3 mitjan\u00e7ant l&#8217;\u00fas d&#8217;un perfil\u00b7lador Doppler ADCP i processament de dades.\u00bb align=\u00bbcenter\u00bb _builder_version=\u00bb4.18.0&#8243; custom_margin=\u00bb||8px|||\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.18.0&#8243; header_3_font_size=\u00bb14px\u00bb header_3_line_height=\u00bb1.4em\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<h3><strong><em>Treballs d&#8217;aforament en la segona secci\u00f3 mitjan\u00e7ant l&#8217;\u00fas d&#8217;un perfil\u00b7lador Doppler ADCP i processament de dades.<\/em><\/strong><\/h3>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.18.0&#8243; text_font_size=\u00bb16px\u00bb text_line_height=\u00bb1.8em\u00bb header_2_font=\u00bb|700|||||||\u00bb header_2_font_size=\u00bb18px\u00bb text_orientation=\u00bbjustified\u00bb min_height=\u00bb2px\u00bb custom_margin=\u00bb21px|||||\u00bb custom_padding=\u00bb||0px|||\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<p>Com s&#8217;ha comentat anteriorment, la metodologia utilitzada per a l&#8217;estimaci\u00f3 del cabal pot veure&#8217;s influenciada per les caracter\u00edstiques del tram aforat. \u00c9s per aquest motiu que en la primera secci\u00f3 va emprar el m\u00e8tode tradicional de tra\u00e7at de verticals i mesurament de la velocitat a diferents profunditats mitjan\u00e7ant l&#8217;\u00fas d&#8217;un <strong>mesurador digital port\u00e0til d&#8217;h\u00e8lix.<\/strong><\/p>\n<p>D&#8217;altra banda, en la segona secci\u00f3, situada en una antiga estaci\u00f3 d&#8217;aforaments, es va emprar un <strong>perfil\u00b7lador Doppler ADCP<\/strong>, el qual duu a terme simult\u00e0niament, mesuraments de la morfologia de la secci\u00f3 i de velocitats a diferents profunditats, obtenint, d&#8217;aquesta manera, un mesurament integrat de tota la secci\u00f3 d&#8217;aforament.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00bb1&#8243; 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