{"id":1722,"date":"2020-06-22T11:51:26","date_gmt":"2020-06-22T15:51:26","guid":{"rendered":"https:\/\/dan.devhammer.com\/?post_type=dan_diving_incidents&p=1722"},"modified":"2021-09-03T16:54:13","modified_gmt":"2021-09-03T20:54:13","slug":"rapid-ascent-due-to-broken-delayed-surface-marker-buoy-dsmb","status":"publish","type":"dan_diving_incidents","link":"https:\/\/world.dan.org\/fr\/safety-prevention\/diver-safety\/case-summaries\/rapid-ascent-due-to-broken-delayed-surface-marker-buoy-dsmb\/","title":{"rendered":"Remont\u00e9e rapide due \u00e0 la rupture d'une bou\u00e9e de marquage de surface \u00e0 d\u00e9ploiement retard\u00e9 (DSMB)"},"content":{"rendered":"

Une d\u00e9faillance de l'\u00e9quipement pendant le d\u00e9ploiement de la DSMB entra\u00eene de multiples probl\u00e8mes pour ce plongeur.<\/p>\n\n\n\n

R\u00e9cit rapport\u00e9<\/h2>\n\n\n\n
\"\"\/<\/a><\/figure><\/div>\n\n\n\n

Lors d'une plong\u00e9e relativement peu profonde \u00e0 13 m\u00e8tres (43 pieds), j'ai eu un incident avec une bou\u00e9e de marquage de surface \u00e0 d\u00e9ploiement retard\u00e9 (DSMB).<\/p>\n\n\n\n

La plong\u00e9e a \u00e9t\u00e9 effectu\u00e9e par une journ\u00e9e relativement calme et ensoleill\u00e9e, dans un chenal o\u00f9 la visibilit\u00e9 \u00e9tait d'environ 2,5 m\u00e8tres (8 pieds). Apr\u00e8s environ 15 minutes de tournage sous l'eau, nous avons proc\u00e9d\u00e9 \u00e0 la remont\u00e9e, un processus normalement simple : d\u00e9ployer les DSMB et remonter doucement \u00e0 la surface.<\/p>\n\n\n\n

Mais la plong\u00e9e peut engendrer des d\u00e9fis inattendus. Le DSMB que j'utilisais est du type autogonflant utilisant une petite bouteille pr\u00e9alablement charg\u00e9e. En raison des conditions locales, il \u00e9tait n\u00e9cessaire de tenir la bobine, de gonfler et de rel\u00e2cher la bou\u00e9e tout en conservant une l\u00e9g\u00e8re flottabilit\u00e9 n\u00e9gative sur le fond marin.<\/p>\n\n\n\n

Dans ce cas, le levier de d\u00e9clenchement \u00e0 cliquet s'est bris\u00e9 \u00e0 son point le plus faible, l\u00e0 o\u00f9 il pivote, laissant la bobine bloqu\u00e9e au moment pr\u00e9cis o\u00f9 la bou\u00e9e devrait \u00eatre lib\u00e9r\u00e9e. La solution la plus simple aurait \u00e9t\u00e9 de l\u00e2cher la bobine et de la r\u00e9cup\u00e9rer plus tard. Cependant, lorsque le levier s'est cass\u00e9, son ressort a attrap\u00e9 mon gant comme un hame\u00e7on et m'a attach\u00e9 \u00e0 la DSMB gonfl\u00e9e qui remontait rapidement.<\/p>\n\n\n\n

\"\"\/<\/a>







<\/figcaption><\/figure><\/div>\n\n\n\n
\"\"\/<\/a><\/figure><\/div>\n\n\n\n

La profondeur \u00e9tait relativement faible et une DSMB enti\u00e8re peut \u00eatre gonfl\u00e9e tr\u00e8s rapidement. Vous pouvez \u00eatre en haut en quelques secondes. J'ai d\u00fb prendre une d\u00e9cision rapide.<\/p>\n\n\n\n

Il n'\u00e9tait pas possible de retirer le gant et de laisser partir le gant et la bobine, car cela aurait pris trop de temps (les gants ne s'enl\u00e8vent pas facilement). L\u00e2cher la bobine et arracher le gant du ressort semblait \u00eatre la seule chose \u00e0 faire.<\/p>\n\n\n\n

Dans les quelques secondes qu'il m'a fallu pour reconna\u00eetre le probl\u00e8me et trouver une solution, je suis mont\u00e9 \u00e0 un rythme rapide; mon journal de bord a enregistr\u00e9 une vitesse de remont\u00e9e maximale de 72 m\/min (236 pi\/min) sur 7 m\u00e8tres (23 pieds). Lorsque je me suis d\u00e9connect\u00e9 de la DSMB, j'\u00e9tais proche de la profondeur du palier de s\u00e9curit\u00e9 (6 m\u00e8tres\/20 pieds). J'ai pu \u00e9vacuer l'air de la combinaison et de la veste de plong\u00e9e pour ralentir encore ma remont\u00e9e, et les 4 derniers m\u00e8tres (13 pieds) ont \u00e9t\u00e9 effectu\u00e9s tr\u00e8s lentement.<\/p>\n\n\n\n

Une fois \u00e0 la surface, il \u00e9tait clair que personne n'\u00e9tait au courant du probl\u00e8me. Bien que me sentant bien une fois sur le pont, j'ai expliqu\u00e9 ce qui s'\u00e9tait pass\u00e9. On m'a ensuite demand\u00e9 si je ressentais quelque chose d'inhabituel qui pourrait indiquer la maladie des caissons, on m'a dit de me d\u00e9tendre, de boire beaucoup d'eau et de m'allonger. De l'oxyg\u00e8ne a \u00e9t\u00e9 propos\u00e9 et gard\u00e9 \u00e0 port\u00e9e de main, mais j'ai pens\u00e9 qu'il n'\u00e9tait pas n\u00e9cessaire avec une profondeur aussi faible et une dur\u00e9e de plong\u00e9e au fond aussi courte.<\/p>\n\n\n\n

Il ne s'agit peut-\u00eatre pas d'un incident particuli\u00e8rement spectaculaire, mais de nombreux incidents commencent par une petite chose et s'aggravent ensuite. Oui, il s'agit d'une plong\u00e9e peu profonde et de courte dur\u00e9e, mais que se serait-il pass\u00e9 si l'incident s'\u00e9tait produit \u00e0 30 m\u00e8tres (98 pieds) apr\u00e8s une plong\u00e9e d\u2019une dur\u00e9e de 40 minutes? Et si le ressort ne pouvait pas \u00eatre retir\u00e9 aussi facilement du gant?<\/p>\n\n\n\n

\u00c9dit\u00e9 par Jeanette Moore<\/p>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

Une d\u00e9faillance de l'\u00e9quipement pendant le d\u00e9ploiement de la DSMB entra\u00eene de multiples probl\u00e8mes pour ce plongeur.<\/p>","protected":false},"featured_media":0,"template":"","dan_diving_incident_keyword":[],"class_list":["post-1722","dan_diving_incidents","type-dan_diving_incidents","status-publish","hentry"],"acf":[],"yoast_head":"\nRapid Ascent Due to Broken Delayed Surface Marker Buoy (DSMB) - DAN World<\/title>\n<meta name=\"description\" content=\"Equipment failure during DSMB deployment causes multiple problems for this diver.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/world.dan.org\/fr\/safety-prevention\/diver-safety\/resumes-de-cas-publies\/rapid-ascent-due-to-broken-delayed-surface-marker-buoy-dsmb\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rapid Ascent Due to Broken Delayed Surface Marker Buoy (DSMB)\" \/>\n<meta property=\"og:description\" content=\"Equipment failure during DSMB deployment causes multiple problems for this diver.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/world.dan.org\/fr\/safety-prevention\/diver-safety\/resumes-de-cas-publies\/rapid-ascent-due-to-broken-delayed-surface-marker-buoy-dsmb\/\" \/>\n<meta property=\"og:site_name\" content=\"DAN World\" \/>\n<meta property=\"article:modified_time\" content=\"2021-09-03T20:54:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/media.world.dan.org\/mdn\/12211_m.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/world.dan.org\\\/safety-prevention\\\/diver-safety\\\/case-summaries\\\/rapid-ascent-due-to-broken-delayed-surface-marker-buoy-dsmb\\\/\",\"url\":\"https:\\\/\\\/world.dan.org\\\/safety-prevention\\\/diver-safety\\\/case-summaries\\\/rapid-ascent-due-to-broken-delayed-surface-marker-buoy-dsmb\\\/\",\"name\":\"Rapid Ascent Due to Broken Delayed Surface Marker Buoy (DSMB) - 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