Building of buildings and constructions under the ground has its own characteristics, the complexity increases when the object is built in the conditions of permafrost.
This is due to the special properties of permafrost, which should be considered when designing industrial and civil objects. The existing recommendations in this area focused mainly on the preservation of permafrost, the creation of special conditions that hinder the development of their thawing and degradacii their physico-mechanical properties .
Practical implementation of these recommendations has led to widespread use in these climate zones pile foundations, subfield ventilated, etc. significantly reduce the heat ducts from the buildings to the ground, which prevents them from thawing.
However, the need to ensure public safety in cases of technological disasters, the requirements of bodies for civil defense and emergencies give the task of construction of underground structures, including in the conditions of permafrost, a particular specificity.
The existing experience of building such facilities Continue reading
Megalithic constructions of the Urals.
Megalithic structures are one of the most impressive archaeological sites. Their various types are known in the Mediterranean, in parts of Northern Europe and on the Atlantic coast of Western Europe. Under this concept combined a variety of masonry structures: dolmens, avenues of menhirs, and rock gallery-tombs (Gimbutas 2006). In Eastern Europe up to the present time the only known megalithic structures were the dolmens of the Western Caucasus.
In recent years, appeared of megalithic monuments in the southern Urals, dated to the bronze age. Usually they are presented with avenues of menhirs, however, the sizes of these structures were not as impressive. Therefore, to call these megalithic structures with great care. However, studies over the last five years has led to the opening of a brand new Ural type of monuments that can be named megalithic with good reason.
The opening of the Ural dolmens was largely unexpected for experts, especially since it was made not by archaeologists. In the last 10 years the historians had published information about Ural dolmens, located to the North of the city Pyshma, Sverdlovsk region. The initiator of these searches were Cheerful A. A. and V. G. Nepomnyaschiy. They suggested that these are ancient monuments close to Caucasian and European structures of this Continue reading
The most famous towers of the world
There’s just so much interesting that so want to visit every corner of the Planet. However, to do this, unfortunately, is possible only to units. But to learn something new and interesting. For example, today we talk about the world’s largest constructions.
Talking about famous towers in the world, it is impossible not to remember the very first structure, which had gathered around his erection thousands of people. This, of course, talking about the tower of Babel. the presence of which is confirmed not only by religious legends, but also historical evidence. This tower was a multi-level complex, which ended with the temple of Marduk under his dome.
Very often construction projects of a political or technical importance towered without the ambitions or goals to achieve the level of cultural monuments. That’s what happened with the construction of the world famous Eiffel tower in Paris, which now collects near every day hundreds of tourists from all over the world. Initially it disgusted the French, who considered the erection of ugliness for the whole city. Well-known cultural figures of the time opposed its construction and sent lots of petitions, notes of protest to the city administration. However, the “iron lady” Continue reading