{"id":3878,"date":"2003-02-22T13:40:33","date_gmt":"2003-02-22T12:40:33","guid":{"rendered":"http:\/\/mdemierre.speleologie.ch\/?p=3878"},"modified":"2026-05-14T15:33:38","modified_gmt":"2026-05-14T14:33:38","slug":"pompage-aux-fontannets-de-la-mothe","status":"publish","type":"post","link":"https:\/\/www.techt.ch\/mdemierre\/?p=3878","title":{"rendered":"Pompage aux Fontannets de la Mothe"},"content":{"rendered":"<p>Les Fontannets de la Mothe\u00a0se situe juste en-dessus du village de Vugelles-La-Mothe. Ce sont des \u00e9mergences temporaires drainant une vaste r\u00e9gion autour du Chasseron. Cette source karstique est turbin\u00e9e au village afin de produire de l&rsquo;\u00e9lectricit\u00e9.<\/p>\n<p>Un projet un peu fou de pompage a permis de passer trois\u00a0siphons successifs, avec de l&rsquo;eau \u00e0 remonter sur une d\u00e9nivellation de 30 m\u00e8tres jusqu&rsquo;\u00e0 l&rsquo;entr\u00e9e. Le pompage nous a permis d&rsquo;atteidre une altitude sous le niveau de la source p\u00e9renne qui continuait \u00e0 couler normalement. Incroyable !<\/p>\n<p>Une salle inond\u00e9e en forme de soucoupe volante mesurant 3 m\u00e8tres de diam\u00e8tre et 1,5 m\u00e8tres de hauteur est d\u00e9couverte. Arr\u00eat sur un quatri\u00e8me\u00a0siphon de belle section\u00a0! Une reconnaissance en plong\u00e9e sur vingt m\u00e8tres et une prfondeur de -6 m\u00e8tres montre que la cavit\u00e9 continue&#8230;<\/p>\n<blockquote><p>Je mets au d\u00e9fit tous les\u00a0vrais sp\u00e9l\u00e9os de d\u00e9passer le terminus de notre pompage. Qui veut le relever ? H\u00e9 ! H\u00e9 ! H\u00e9 ! \u00a0\ud83d\ude09<\/p><\/blockquote>\n<p>Une grosse op\u00e9ration avec plusieurs pompes en s\u00e9rie ! Une vraie aventure avec des \u00e9checs caus\u00e9s par des\u00a0des crues surprises et surtout une belle r\u00e9ussite due \u00e0 la motivation, la pers\u00e9v\u00e9rance et \u00e0 l&rsquo;esprit d&rsquo;\u00e9quipe !<\/p>\n<p>Un grand merci\u00a0\u00e0 la famille Jeckelmann pour son pr\u00e9cieux soutien.<\/p>\n<p>Quelques photographies :<br \/>\nngg_shortcode_0_placeholder<\/p>\n<p>La vid\u00e9o :<\/p>\n<div class=\"ast-oembed-container \" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"Pompage du Petit Fontannet de la Mothe (Vugelles-la-Mothe)\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/JrdbeUUgx1g?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>Grand Fontannet de la Mothe, 533&rsquo;350\/185&rsquo;800, d\u00e9v : 115\u00a0m, d\u00e9niv. : -14\u00a0m<br \/>\nPetit Fontannet de la Mothe, 533&rsquo;375\/185&rsquo;825, d\u00e9v : 305\u00a0m, d\u00e9niv. : -30\u00a0m<\/p>\n<p>Informations :\u00a0<span style=\"text-decoration: underline; color: #0000ff;\"><a style=\"color: #0000ff; text-decoration: underline;\" title=\"Fontannet de la Mothe\" href=\"http:\/\/www.speleo-lausanne.ch\/06_Activites\/Explorations\/Vd-Jura\/386-Vugelles\/_0-FontannetsMothe.htm\" target=\"_blank\">Lien<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les Fontannets de la Mothe\u00a0se situe juste en-dessus du village de Vugelles-La-Mothe. Ce sont des \u00e9mergences temporaires drainant une vaste [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3902,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-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":"","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-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":"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":""},"mobile":{"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":""}},"ngg_post_thumbnail":0,"footnotes":""},"categories":[8,78],"tags":[32,58,19,69],"class_list":["post-3878","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cavites","category-exploration-vaud","tag-pompage-2","tag-speleo","tag-speleologie-2","tag-vaud"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Les Fontannets de la Mothe se situe juste en-dessus du village de Vugelles-La-Mothe. 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