{"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=&#8221;1&#8243; custom_padding_last_edited=&#8221;on|desktop&#8221; admin_label=&#8221;section&#8221; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;0px||0px|||&#8221; custom_padding_tablet=&#8221;50px|0|50px|0&#8243; custom_padding_phone=&#8221;&#8221; transparent_background=&#8221;off&#8221; padding_mobile=&#8221;off&#8221; make_fullwidth=&#8221;off&#8221; use_custom_width=&#8221;off&#8221; width_unit=&#8221;on&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row padding_mobile=&#8221;off&#8221; column_padding_mobile=&#8221;on&#8221; admin_label=&#8221;row&#8221; _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; custom_margin=&#8221;|auto|-6px|auto||&#8221; custom_padding=&#8221;0px||8px|||&#8221; make_fullwidth=&#8221;off&#8221; use_custom_width=&#8221;off&#8221; width_unit=&#8221;on&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.18.0&#8243; text_font=&#8221;|on|||&#8221; text_text_color=&#8221;#4f8b0d&#8221; text_font_size=&#8221;22&#8243; header_font=&#8221;|700|||||||&#8221; header_text_color=&#8221;#4f8b0d&#8221; header_font_size=&#8221;28px&#8221; header_line_height=&#8221;1.2em&#8221; background_color=&#8221;rgba(255,255,255,0.14)&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; custom_padding=&#8221;||2px|||&#8221; header_text_color_tablet=&#8221;#4f8b0d&#8221; header_text_color_phone=&#8221;#4f8b0d&#8221; header_text_color_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;]<\/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=&#8221;Titol&#8221; _builder_version=&#8221;4.18.0&#8243; text_font=&#8221;|on|||&#8221; text_text_color=&#8221;#3f3f3f&#8221; text_font_size=&#8221;18&#8243; header_text_align=&#8221;justify&#8221; header_2_font_size=&#8221;18px&#8221; header_2_line_height=&#8221;1.1em&#8221; background_color=&#8221;rgba(255,255,255,0.14)&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; text_orientation=&#8221;justified&#8221; custom_margin=&#8221;||7px|||&#8221; custom_padding=&#8221;||7px|||&#8221; link_option_url=&#8221;o&#8221; use_border_color=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<\/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=&#8221;Titol&#8221; _builder_version=&#8221;4.18.0&#8243; text_font=&#8221;|on|||&#8221; text_text_color=&#8221;#3f3f3f&#8221; text_font_size=&#8221;18&#8243; header_text_align=&#8221;justify&#8221; header_2_font_size=&#8221;18px&#8221; header_2_line_height=&#8221;1.1em&#8221; background_color=&#8221;rgba(255,255,255,0.14)&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; text_orientation=&#8221;justified&#8221; custom_padding=&#8221;||22px|||&#8221; link_option_url=&#8221;o&#8221; use_border_color=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;]<\/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=&#8221;4.18.0&#8243; text_font_size=&#8221;16px&#8221; text_line_height=&#8221;1.8em&#8221; header_2_font=&#8221;|700|||||||&#8221; header_2_font_size=&#8221;18px&#8221; text_orientation=&#8221;justified&#8221; min_height=&#8221;2px&#8221; custom_margin=&#8221;-29px|||||&#8221; custom_padding=&#8221;||0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<\/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=&#8221;https:\/\/www.eccus.es\/wp-content\/uploads\/2023\/01\/Medicion-de-las-velocidades-a-distintas-profundidades-con-molinete-en-la-primera-seccion-ECCUS.jpg&#8221; alt=&#8221;Mesurament de les velocitats a diferents profunditats amb molinet a la primera secci\u00f3 ECCUS&#8221; title_text=&#8221;Mesurament de les velocitats a diferents profunditats amb molinet a la primera secci\u00f3 ECCUS&#8221; admin_label=&#8221;Pasteral II&#8221; _builder_version=&#8221;4.18.0&#8243; custom_margin=&#8221;||11px|||&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.23.4&#8243; header_3_font_size=&#8221;14px&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#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=&#8221;4.16&#8243; custom_padding=&#8221;7px|||||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.18.0&#8243; text_font_size=&#8221;16px&#8221; text_line_height=&#8221;1.8em&#8221; header_2_font=&#8221;|700|||||||&#8221; header_2_font_size=&#8221;18px&#8221; text_orientation=&#8221;justified&#8221; min_height=&#8221;2px&#8221; custom_margin=&#8221;21px|||||&#8221; custom_padding=&#8221;||0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<\/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=&#8221;https:\/\/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&#8221; alt=&#8221;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.&#8221; title_text=&#8221;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.&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; custom_margin=&#8221;||8px|||&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.18.0&#8243; header_3_font_size=&#8221;14px&#8221; header_3_line_height=&#8221;1.4em&#8221; global_colors_info=&#8221;{}&#8221;]<\/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=&#8221;4.18.0&#8243; text_font_size=&#8221;16px&#8221; text_line_height=&#8221;1.8em&#8221; header_2_font=&#8221;|700|||||||&#8221; header_2_font_size=&#8221;18px&#8221; text_orientation=&#8221;justified&#8221; min_height=&#8221;2px&#8221; custom_margin=&#8221;21px|||||&#8221; custom_padding=&#8221;||0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<\/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=&#8221;1&#8243; 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