In November last year, residents of Russia have learned that in Solikamsk, Perm Krai discovered a huge sinkhole.It was not a joke and not a hoax - the photos from the event in the earth gaping giant crater near-perfect circle.
Solikamsk salt can be called the capital of Russia.Here it is: the oldest salt mine, a museum and a monument of salt.Now it has a new attraction - Solikamsk failure.
Chronicle
November 18, 2014 at the mine "Solikamsk-2" the accident occurred - began to enter groundwater.Some pumps were flooded with brine (a mixture of salt and water), and at 13:50 Moscow time the decision was made on the introduction of PLA (emergency plan).120 mine employees were immediately brought to the surface.Together with the brine in the mine did explosive hydrogen sulfide, so it was off the power supply.
In three and a half kilometers from the residential buildings in Solikamsk, at the site of the old unexploited mine company, on the same day found a failure, the size of which at the time were 20 to 30 meters.
place events
Mining Group "Solikamsk-2" - a factory for the production of potassium chloride and, actually, mine.The mine is part of the company "Uralkali".It is owned by Mikhail Prokhorov and "URALCHEM", headed by Dmitry Mazepin.Part of the shares owned by the Chinese company.
«Uralkali" - one of the leading companies in the production of potash fertilizers placed on the market for about 20% of the world of their volume.The accident, which stopped the work of mine "Solikamsk-2", led to the collapse of the company.
village at Solikamsk, which formed a failure, stop the operation of the mine "Solikamsk-2" is the name of the key.It is located above the abandoned mine workings, a few kilometers from the city limits and residential developments.
cause of the incident
Now experts are working to find out what was the cause of the failure of Solikamsk: human and natural factors?If we talk about the past of such incidents, then they occurred partly because of a violation of technology.Validity of potash mines an average of about 50-60 years, and over time they are flooded by groundwater.Only here the negative consequences of this can still be minimized.Those voids are formed in the process of potash ore mining, you need to lay waste rock.
over potash mine is a non-uniform layer of rock: the formation of the potassium salt formation is rock salt, and even higher - more than 100 meters of rock saturated with groundwater.Recent gradually make their way into the voids formed in the development of potash ore.Spurred by this process can be an earthquake.This happened, for example, in 1995, when the tremors 4 points lead to cracks in the rock, breaking brine and failure.What do you think was the cause of the earthquake and the November accident at the mine "Solikamsk-2."
Luckily, Solikamsk the failure did not arise in a populated place, otherwise the victims to escape failed.Holiday Village Klyuchiki long been abandoned.After the 1995 earthquake there was broken water, and gradually buildings and cottages were abandoned.But residents of Solikamsk fear that their city could suffer the fate of Berezniki where sinkhole began to occur in the city.While decided to install in homes located in the immediate vicinity of the mine, the second company, the sensors that transmit information online.
Projections for the future
According to experts and engineers, Solikamsk failure will grow.In December 2014, it increased to its upper part due to natural subsidence.Now the failure of Solikamsk, the depth of which has not been determined precisely, increased again.According to recent data, its size - 50 to 80 meters.During this time it became three times as much.If the brine inflow into the mine continued unabated, with a high probability it can be predicted that the failure by Solikamsk will increase further if you do not take urgent measures to eliminate the consequences of the November accident.In December, it became clear that water enters the mine several times smaller.And if the company at the beginning of the event is considered that the mine is almost lost, but now with greater certainty experts say that it can still be saved.Since the beginning of December at the mine started mining rocks for laying it in a vacuum.
All
Solikamsk repeated failure - is not the first in the history of the "BRIC."Similar events occurred in 1986 and 1995.
In 2006, the company was flooded mine BKRU-1, located near the town of Berezniki, and a year later in its place formed a failure that has increased over time.Over the next few years, a failure that threatened homes.As a result of the company "Uralkali" has been forced to take on part of the funding for the resettlement of the danger zone and the laying of the railway bypass.
Solikamsk reaction to the failure of the Internet: fotozhaby
Internet community has responded to the incident by Solikamsk with a peculiar sense of humor.
failure has become a popular fotozhabu.Some of the "masterpieces" were quite amusing, despite the seriousness of the incident.
