Moscow quickly goes underground

19.03.2004

19.03.2004


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The website of the daily newspaper "Gazeta", some parts of the city are immersed in the ground at a rate of a few millimeters to a few centimeters per year, and each new building creates bulky under a funnel with a radius of 200 meters.
As explained by the publication of the chief researcher at the Institute of Earth Physics named Gamburtseva Professor Andrei Nikonov, one of the reasons was the constant flooding of the city due to leakage of water pipelines and disturbing the natural path of water runoff. Construction of the massive buildings and underground complexes also provokes subsidence and collapse of underground cavities. In general, in Moscow, about 15 per cent of the declared potentially dangerous area.

According Nikinova, because of the summer watering streets and melting snow around the heating mains in winter groundwater recharge in two to three times more intense than outside it. This can cause flooding of different areas of the city, and then lead to a crash of houses and dips. So, that flooding has caused the failure and collapse of the bridge house on Bolshaya Dmytrivka in 1998.

According to the Institute of Ecology, during the eight years we can expect flooding 89 percent of the territories in the Eastern District, 50 percent in the North-East, South-East and West districts and more than 40 percent in the South, North and North-West districts. The most threatening situation along Schelkovskogo, Dmitrov, Warsaw highway and road enthusiasts, between Yauzoy and the Yaroslavl highway between Southern and port and bonnet, in Mnevniki. Today the center of Moscow places deposited at a rate of 60 millimeters per year.

As explained by the Institute of Physics of the Earth, the construction of underground shopping mall in Manezh Square triggered subsidence and collapse of underground cavities within a radius of one mile. As a result, the ground began to sink, and in the buildings of the Historical Museum, the hotel "Moscow" and "National" cracks. In addition, under the surface of the city, there are karst cavities, which can also cause a sinkhole.

Enhanced subsidence began after Moscow began to produce drinking water from underground sources and began to build underground. As a result, there have been subsidence of buildings — the State Library, Little Theatre, the hotel "Metropol". In addition, subsidence occurs in the area of new buildings — towers standing on an artificial soil in places where there used to swamps or landfills.

If the pace of construction will not be reduced, and the control is not tightened, the further development of the city will cause activation of flooding. It is predicted that the groundwater level in the Western, North-Western, Southern and South-Western districts will rise by 5-7 meters. This is expected to trigger a series of accidents.

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