With the help of geologists, we break what happened in the largest mining disaster in Asturia for decades. The main hypothesis that the authorities work is an outbreak by Kiriso. But where is this material located and why does it explode?
Five miners, between 32 and 54 years of age and native to Leon Province After a severe eruption in the cereeto tunnelLocated in the Principal of Asturius, the Degana Council. The other four workers are constantly hospitalized – two of them have the UCI. Gray gas is caused by rupture of the bag.
Researchers continue to investigate the reasons for the incident, which is one of the most intense in Spain’s mining industry over the past 12 years. According to data provided by the Ministry of Environmental Transformation In its recent mining accident reportYou have to go back until 2013 to find the annual fence of more deaths.
This underground coal of coal from coal It first opened in 2009 and went through many business hands until it was closed in 2018. Renewed interest of the European Commission for Mineral Resources After seven years, he is reopened. At the time of the accident, 11 workers were on the third floor of the mining installation.
As confirmed in a recent interview with the Asturion president’s ‘TV’, Adrian BarbonBlue solving the offer company Blue is not recognition of the environmental change for its full exploitation. Can only be done by the company Work at some points To analyze the properties of coal. This is not the third floor of the incident, in which only human items can be removed as electrical or rail components.
We analyze the geological environment that can cause the authorities’ main hypothesis, the explosion of a bag of this flammable substance:
What is chirisa gas and how does it develop?
“Grisi’s majority component Methane“He explains George Fernandez SuarezThe head of the Division of the Geological and Mining Institute of Spain in Paido makes it clear that he can associate with other gases along with methane. “Gas It is formed by the seat of coal layers And caught in the rock. “
That place is made early To the disintegration of the plants. This process varies according to the temperature and pressure level, leading to different chemical structures and gas molecules.
Girisi can naturally excrement of the rock with some sort of split. However, too Can accumulate in the object There is a human risk: the rock that contains it is suddenly fractures (for example, when pierced), the gas is suddenly discharged.
Can I find this gas in any regions or mining farms in Spain?
Girisay, tragically known among residents Asturius y leon’s tunnelsLocated around the western contatrian mountain range, the training process is attached to the coal mines due to the training process.
Study Last Map of the National Geology InstituteCoal can be found in similar concentrations in another part of Spain: the lower Aragon tunnel, In the province of Terul. We can find old farms like times or hearing mines that are located next to the population of Alliah. There are other geographical exceptions, such as the Catalan region of Bergada.
“There are some studies that may be associated with other types of deposits, such as salts,” says Fernandez Suarez, the exception to the rule. “Where there are the processes of decay of carbonus products, there may be a gas accumulation.”
Why is this very dangerous for human life?
Since a methane gas, Girisay A Inflammation It is mixed with air in some proportions and creates explosive atmospheres. Immediate release of a large amount of gas can cause large divisions Coal dust. This dust, flammable, creates the right storm for those who are close.
Can do any friction that causes a spark Diflagler al -Grisa.
But this gas output only explains a portion of Risk for workers They are in the underground exploitation: “with high concentrations, ash Transfers oxygenAnd then It can produce breathlessness“The geologist adds.
At this time, the reasons for the Girisay explosion are being investigated, as some types of extraction that are not allowed by the authorities in the area of the tunnel are carried out. President Barban has promised that Blue will solve Blue. “Will be checked from top to bottom“.
AdvertisementCan you find it before making opportunities? Which type of technology is used?
This sudden air shortage explains the use of basic components to detect the lack of oxygen by mining workers, which, until the middle of the century, the use of canary in cages, which met with the decrease in oxygen in the ground facilities. In front of miners.
Today we have the technology we need, and in theory, this type of misfortune must be prevented: “There are devices that detect methane gas in mines in the mines: Methanomina“, Explains the expert in the Asturion section of IGM.” They are well -scale and maintained inventors, capable of detecting those concentrations. ”
Fernandez Suarez points out another important key to maintaining workers’ safety From this branch of the primary field: “Ventilation plays the most important role. In the tunnels, the nature of being a features that allow you Fan and extraction tubesOne of all mines often. ”
Are there other similar gases that are dangerous?
There are no similar items that cause this type of accident. He is known Radon gasThe rooms are granite or overall areas without adequate ventilation. But this does not indicate the risk of health, except for the highest level, and in any case it does not cause this type of eruptions.
AdvertisementWhat are similar accidents in Spain?
Representative of the Socialist Party in Congress, Asturion and Exports Athreana LastraIt seemed to have been affected before the media to create the first balance of the situation. “Now the important thing is that the judiciary police are already investigating what happened,” pointed out that the first hypothesis is focusing on Girisay.
“We are talking about Big Tunnel Accident for 30 years in AsturiaFrom the event Boso nicolasa In 1995, that is why they will understand how we live in it, especially when Minera Basinin said, “Barbon said this morning at his interview with ‘The Time of 1’. Near the city of MierceIt 14 Death of miners. The explosion occurred at a very depth and created a fire, which was an obstacle to the recovery of the victims.
In 2013, six workers died in the Leonis tunnel Emilio Dell Wale. Girisa again displaced oxygen, causing the immediate shortness of breath of the miners. The most severe accident of the last decades occurred on November 3, 1975 at the Barcelona tunnel PigsWhen the Catalonia, when the eruption of Girisa occurred 30 deaths.
