Borlänge 180107: Dykolycka i gruva – kvinna befaras omkommen (Tuna-Hästberg)

– Strax före klockan 17 på fredagen så fick jag informationen om att kroppen var bärgad.

.http://www.avestatidning.com/dalarna...k-som-planerat

Här kommer en liten sammanfattning om det som vi gjorde i helgen för er som undrat. Media har lämnat mycket varierande uppgifter och ibland helt felaktiga men det som står här är korrekt.

Den dykare som omkom 7/1 2018 i ett brytrum på ca 25m djup vid Äventyrsgruvan Tuna-Hästberg utanför Borlänge har i fredags eftermiddag 12/1 blivit bärgad. Insatsen gick bra och kroppen lokaliserades drygt 250 meter in i en gruvgång på 22 meters djup.

Det var i söndags som ett team på 3 erfarna dykare från Finland dök i gruvan. En av dykarna, en kvinna, fick problem som försökte avhjälpas men hon drabbades av panik och avled. Hennes två kamrater återvände då, efter flera försök att få kontroll på situationen, upp till ytan och personal från gruvan larmade SOS.

Då vare sig räddningstjänsten eller polisen har kunskap och utrustning att genomföra den typ av dykning som krävs begärde polisen stöd från Försvarsmakten. Gruvans egna dykare med hög kompetens fanns på plats men fick inte användas då de inte tillhör en statlig organisation eller myndighet. Försvarsmaktens dykare har tidigare gjort runt 50 dyk i Äventyrsgruvan så de hade god lokalkännedom och hög kompetens.

Klartecken kom i onsdags kväll från Försvarsmakten och alla inblandade parter planerade insatsen tillsammans under torsdagskvällen i den gamla skolan i Tuna-Hästberg.

Personalen som genomförde insatsen kom från SSS, Fjärde sjöstridsflottiljen och Försvarets materielverk (FMV). Även dykare från sjöpolisen, räddningstjänsten och en expert från finska kustbevakningen fanns på plats. Samarbete med Finland gjordes inom ramen för projektet ”Dive Smart Baltic” och deras representant har stor erfarenhet med över 100 dyk i gruvan sedan tidigare. Äventyrsgruvans personal var med som expertis, rådgivare och ansvarade för logistiken. Hela insatsen gjordes enligt gruvans tidigare framarbetade rutiner.

På fredagsförmiddagen genomfördes först ett rekognoseringsdyk som filmades. När dykarna kom upp tittade vi tillsammans igenom filmen och kunde då konstatera att det skulle bli lite mer komplicerat än vi först trott eftersom kroppen var ca 40m längre bort in i nästa brytrum.

På eftermiddagen genomfördes sedan själva bärgningen. Med hjälp av bland annat en undervattensskoter kunde kvinnans kropp bärgas. Efter 28 minuter var Försvarsmaktens dykare uppe på sex meters djup och möttes då av dykare från sjöpolisen som förde upp kroppen till ytan. Äventyrsgruvan ansvarade sedan för transporten upp till markytan enligt tidigare inövade rutiner.

Innan gruppen lämnade gruvområdet genomfördes en timslång debriefing under räddningstjänstens ledning. Äventyrsgruvan hade också en egen debriefing med sin personal.

Orsaken till olyckan kommer att delges först när polisens utredning är klar.

Vi på Äventyrsgruvan är mycket nöjda med vår personal och deras insats från att olyckan skedde tills att kroppen bärgats.

Tack till alla som hört av sig och erbjudit hjälp och stöd. Ett speciellt tack till Sahlins Struts som ställde upp med underbart god mat och fika till alla inblandade under fredagen.

/Daniel Karlsson, Verksamhetschef Äventyrsgruvan

Team of three divers travelled from Finland to Tuna-Hästberg to dive. They were participating in an event 5-7.1.2018 for about 20 divers. During the accident of 7.1 let the diver who perish be designated as diver 1, after her was diver 2, and finally diver 3.

Divers reached Tuna on the 5.1.2018, and diving started in great spirits. During the first dive the trio dove together two dives. Diver 1 lead the first dive, which had the same route as the dive during which the accident occured. On 6.1.2018 the trio dove the first dive together. The dive started along the same route as the accident dive, but after start a different path was followed. During the second dive of the day the team split up so that divers 2 and 3 dove together. Diver 1 went for the second dive with a group of two Norwegian divers. Because she was the team's most experienced she was also leading the dive. Their dive followed initially the same path as the dive of the accident. After the dive diver 1 was a bit disappointed that the diver was a bit shorter than her usual dives.

All dives were conducated with Nitrox 27-29%. The maximum depth of the dives was 36m. The divers have agreed to use the rule-of-thirds for gas. All divers were using 2x12 back tanks and 80cf stages.

The dive during which the accident occured was supposed to be the last dive of the trip, after which the divers were supposed to head home (Finland). The team did the routine safety check at the surface, gas check (back tanks 2x12@210bar EAN29, 80cf@195bar EAB29), lights ok, bubble check ok, everything else in order too. The route and team ordering was already agreed the night before and was the one described here before. The route was initially the same, but after that it ascended through the step-shaft to the so-called "Rabbit Hole" direction on a new route to a tunnel which would then connect to a route they already knew near the so-called "Mirror" tunnel.

The dive begun as before, peacefully without any problems. On the route before the place of the accident there are two slight restrictions. They did not present any problems and everything proceeded normally. The team ascended along the ladder to about 6-7m and proceeded to the "Rabbit Hole". At about 28th minute diver 1 started to move through the about 2m diameter "Rabbit Hole". Diver 2 took a position behind, and slightly above and lit the way. Diver 3 was behind Dive 2 slightly to the side. When Diver 1 proceeded about 2m she suddenly started to push strongly backwards with her hands. When she reached the beginning of the restriction Diver 2 noticed that Diver 1 had air in the feet of the suit, however the feet were not raising to the ceiling of the tunnel. Diver 2 noticed that everything was not ok as Diver 1 was kicking constantly without there being any effect to the kicks. At that time of of Diver 1's fins came off. Diver 2 pushed Diver 1's feet down and got the air out of the feet, then proceeded to take Diver 1 one by the arm and use the other arm to hold the rock to steady them both. Diver 3 was observing this, and picked up the dropped fin. Diver 3 replaced the fin on Diver 1's foot. Diver 2 positioned themselves in front of Diver 1 and tried to calm her down, without apparent contact/notice. Quickly Diver 2 noticed that also the second fin has come off, and decided to raise to the celing of the tunnel. Diver 2 inflated Diver 1's wing. The visibility near the bottom of the tunnels has nearly reached zero. Diver 3 stayed to search for the dropped fin and lost guideline when Divers 2 and 1 ascended to the top of the tunnel. When they reached the celing of the tunnel, Diver 2 turned clearly panicked Diver 1 to the correct orientation, and positioned themselves in front of her holding her hand and maintaining eye contact.

Diver 3 located the fin and the guideline, and ascended to Divers 2 and 1. Diver 3 tried to replace the fin to Diver 1's foot, but was unsuccessful due to heavy kicking. The fins did not stay on Diver 1's feet. Divers 2 and 3 tried to calm Diver 1 down and maintained hand contact. The situation continued for a considerable time. Divers 2 and 3 communicated that they will try to move Diver 1 to the exit. They managed to proceed only several meters before Diver 1 convulted and became unresponsive. Divers 2 and 3 concluded that Diver 1 died. Dive time was 47min. Diver 2 managed to then locate the guideline in lost visibility and took a hold of it. They proceeded to an area of slightly clearer water and started signaling Diver 3 with their light. Diver 3 attached their reel to Diver 1. Diver 3 proceeded towards Diver 2 and attached the reel to the guideline. Divers 2 and 3 started to exit the dive at an increased speed. Dive terminated at 70min.

At the surface the divers signaled for help. Emergency services and the police arrived quickly. Divers were very pleased how well things were organised and how fast they received help during this accident. It is possible that we will never find out what was the cause of the chain of events which resulted in such tragic end. It is know that those present at the scene did everything possible with the tools and training they had.