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Two degrees higher
Because of global warming in the Magadan region can do without piles

In the center of Magadan, a pit was dug for the construction of the future of the city’s largest shopping center. An unusual place was chosen for him. Permafrost, if it was here before, retreated. But at a depth of 10 meters - groundwater, which immediately began to flood the pit. The builders found a way out in a completely new technology for Kolyma. Throughout the perimeter, dug wells, in which they installed special pumps.
“There is a dewatering well, a pump, a pump, a sensor system. Pumps are installed in the wells. They constantly pump out water, a sensor system records the water level. All information flows to the control station. In general, water is pumped out automatically, "said Nikolai Starichenko, chief engineer of the Magadanstalizdelie enterprise.
As soon as the water rises above a certain level, the pumping unit is started. When the building is built, wells with pumps will continue their work, protecting the object from flooding.
The introduction of new technologies for the construction of houses on the Kolyma may have to be more and more often, say scientists. Permafrost, which has always been a reliable base for buildings, behaves differently.
The construction of each house in Kolyma begins with research. Experts determine the depth of the permafrost and how thick it is. If all this is not done, then it will turn out as with one of the houses on Kolymskoe Highway in Magadan. It was built in the 90-s of the last century, without taking into account local features. As a result, after six months he simply collapsed. To ensure that such errors do not recur, the soils at the site of future construction are carefully checked in the laboratory. Specialists drill multimeter wells, from the bottom of which samples are taken. Studying them in detail, they conclude what and how to build.
“When defrosting ice turns into water. The water is squeezed out and the ground begins to thicken. The soil is deposited, and unevenly. This is the main specificity of permafrost construction. And this must be taken into account during construction, ”said Victor Bassisty, General Director of the Hydrogeologist enterprise.
But houses built according to all the rules must be checked periodically, permafrost experts believe. The buildings themselves give off heat, the frozen ground beneath them gradually thaws.
World Warming
A separate problem for permafrost is global warming, which also affected the Magadan Region. The average annual temperature in the last forty years on the Kolyma rose by two degrees. And if the residents do not notice a particular difference, then for the buildings of the region, climate changes can become disastrous. The fact is that many of them were built on the ground, frozen to tens of meters in depth. It was assumed that the permafrost under them will not go anywhere, but the situation has changed, and now the future of such houses is in question.
Permafrost scientists intend to study this problem. For this purpose, they plan to drill many multimeter wells in different areas of Magadan. They will drop a special measuring device and understand what happens to the permafrost.
Scientists pay particularly close attention to the oldest houses, many of which were built when they had not even thought about the problems of soil defrocking. The problem of climate change and unpredictable soil behavior in Kolyma also applies to hydraulic structures. A large study of scientists, for example, carried out on the dam of the technical reservoir of the Magadan CHP.
"Magadan has already experienced warming by about two degrees of average annual temperatures during the observation period. How does this affect the internal state of the dam? If some processes inside the body of the dam begin and threaten security, then we will take technical measures, "said the chief engineer of Magadanskaya TPP Anatoly Orlov.