What to visit when traveling to Spain. Barcelona, Sevilla, Córdoba
Barcelona is well known the world for its football teams, both professional and Amateur. Largely thanks to the summer Olympic games of 1992, the city upgraded and are successfully operating…

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The construction of the dam.
40 years ago, December 19, 1973, in the construction of the Cheboksary hydroelectric complex was laid the first cubic meter of concrete The construction of the Cheboksary hydroelectric power station…

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Churches and Temples of Ancient Prague

The St. Vitus Cathedral. The dominant feature of Prague Castle is undoubtedly the Cathedral of St. Vitus.

Were held in the Cathedral of the coronation of Bohemian kings, some of them are buried here, so that the Cathedral for the residents of Prague – a place sacred. In the Cathedral you can enter through the bronze doors of the Western façade. On the doors depict scenes from the history of the construction of the temple, as well as episodes of legends about Vaclav and Vojtech.

The Cathedral Of St. Mikuláš.

Created by two prominent Prague architects Christoph and Kilian Ignaz Dienzenhofer. Father, Christoph, was built in the early eighteenth century, the nave and Western facade, and the son 40 years later – the choir and the dome. Completed the construction of the creation of the bell tower (1755) Anselmo Lurago. Especially impressive are the dimensions of the Continue reading

Walk through the Gothic quarter in Barcelona

In Barcelona’s Gothic quarter is actually great to just get lost, going from one narrow streets to another, to wander among the chaotic urban planning, to feel the atmosphere and spirit of the middle ages. My first acquaintance with the Gothic quarter was exactly that – we just wandered and swerved through the streets of the old part of town, but then to our surprise it turned out that we wandered in all corners of the quarter, it was a shame. A year later, I wandered through the Gothic quarter with the card, and was satisfied because he saw all the wealth the area. Map of the Gothic quarter in Barcelona was very convenient, in addition to the medieval picture, as well as a handy diagram of the quarter, it offers and route description of the historical places, best option is not found! Offer to Your attention a medieval picture + scheme quarter.

And now, some history from Wikipedia: actually the name of the quarter received because of its medieval buildings. The quarter begins from Plaza Catalunya, La Rambla stretches from Avenue of via Lautan. Typical of medieval towns chaotic layout is preserved in the Gothic quarter. The quarter consists of narrow winding streets, many of which are closed to travel. Most of the buildings date from the XIV—XV centuries, however, sohranilis Roman monuments. The quarter was inhabited during the reign of Octavian August. Continue reading

The soil pressure on underground structures

Prior to production and to the construction of underground structures soil in an unlimited array is in a state of natural or geostatic equilibrium under the action of its own weight. In this case, the depth Z in the soil (Fig. 1), the following compressive stresses (pressure):

vertical

horizontal

where is the average bulk weight of overlying soils; – the coefficient of lateral earth pressure under conditions of natural occurrence.

The open or underground excavation changes the equilibrium conditions of the soil and leads to the emergence of deformation and redistribution of stresses.

Earth pressure on underground structures is different than the pressure in the intact rock mass at the same depth, as: Continue reading

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