Geophysical  processes  primers  and  security.  Part  3
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Protect the surface of the concrete floor
To protect the concrete floor, which is operated in the normal mode, or is subject to wear in areas with high traffic, there are several ways to protect the surface.
   Comparable ways: their cost, appearance and ability to perform the task to protect.
   In this article, we consider three ways to finish and protect the floor. Each of them has its advantages and disadvantages.
  
   Thin fil...

Finishing compositions based on water glass. Part 3
When used as part of exhaustion moderator comes coagulation and solidification of liquid glass. However, due to the presence in the composition of Portland cement with a finishing time is an increase strength of the coating due to hydration of cement minerals. Thus from colloids formed during the coagulation liquid glass are actively assigned to the water for hydration of cement, a porous media formed tumors filled Portland cement, which leads to...

Finishing compositions based on water glass. Part 2
Studies in Berlin Institute Federal institute for Materials Research and Testing, show that the average density of 1730 kg/m3 brick large proportion of pores having a size in excess of 1 micron is more than 90% [3] and they are responsible for the increased migration of fluids through brickwork.
   Most fully meet these requirements structure obtained by coagulation and water-soluble potassium silicate forming silica with a high sp...

Modernization and repair of self-propelled machines. (3)
Hardening electrolysis BORATING hinge pins and bushings mates working equipment hydraulic excavators EO-4121 (EA-4321) gives an increase in wear resistance 4-6 times compared to the bulk quenching details.
   Taking into account the high wear resistance of brazed blades, hardened sintered alloys (see Table 1), are recommended for carbide knives dumps graders DZ-122 and RS-98, combined machine E-405 based on KAMAZ, for front dumps a t...

Specialized exhibition Architecture. Construction (END)
Mari-lime brick and gas silicate blocks
   JSC "MZSK" produces silicate brick and a half, color (white, yellow, black, red, blue, green, brown).
   For the production of silica brick used quartz sand from quarries near the plant. Limestone enters the factory with Dobryatinskogo deposit Vladimir region. Silicate brick (Table 1) is used for masonry exterior and interior walls of buildings and structures, as well as ...

Geophysical processes primers and security. Part 5
In the center of Moscow can distinguish vertical structure comprising a crashing into the Earth`s crust magma elongated cylinder (Fig. 2) [5]. In the center section marked lack of extensive vertical zone converted waves ("blind spot"), going from the depths of 70-80 km to 7.5 km. Such "blind spots" are characteristic of the earth`s crust with the introduction of monolithic dense mantle rocks such as gabbro, diabase, etc. In such a zone Tashkent e...

Finishing compositions based on water glass. Part 1
The quality of the decoration of buildings for new construction and reconstruction depend not only on their aesthetic, but also the operational parameters, as good-quality finish - a guarantee of durable service basic designs, long maintenance-free operation, the costs for maintenance and care. Traditional binders used for the production of finishing compositions, liquid glass is widely used, but it has some drawback: coatings based on it gaining...

On possible amendments to the equation Griffiths
Griffith presented a picture of destruction allowed to formulate the problem of determining conditions of the beginning of crack propagation and find its general solution.
   As seen from the above schemes, in the process of crack propagation material directly adjacent to it "coasts" unloaded relaxes. This means that the stress and strain it decreases, and the elastic energy stored earlier in this area of ​​the body is re...

Construction skyscrapers - the requirements of modernity. Part 4
The program is a high-rise building in Moscow
   The project is now a high-rise building in Moscow is implemented in two main areas: the construction of business center "Moscow City" and implementation of the program of the Government of Moscow "New Ring of Russia."
   1. Moscow international business center "Moscow - City"
   The project includes the construction of buildings on the territory of abou...

Degree project - beginning of the road. (3)
Given the great diversity of subject matter and content of diplomas in various specialties, the jury is faced with great difficulties in determining the winners - "Who better violinist or a dancer?". Nevertheless, often based on emotional perception and can estimate the relevance and novelty, and the author`s contribution to the thesis project or job. Absolute winners in recent years have been graduates of Rostov CSO GASU St. Petersburg, Nizhny N...

 

 
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 Geophysical  processes  primers  and  security.  Part  3

The most striking example of the importance of addressing the mentioned problems is the Chernobyl disaster. Media reported that the submission of data on the geophysical aspects of the event was declared insolvent IAEA report USSR in 1986 on the causes of the Chernobyl disaster.
   Creature of the data is as follows [2]. Accommodation Chernobyl site was made without the tectonic features of the region on the border of the Dnieper-Donets trough, the largest on the East European platform near the intersection of regional and South-Pripyat Teterevsky deep fault about 10 km from the source of irregular seismic noise. Mistakenly believed that the Russian Plain stable and aseismic. In the summer of 1985, surveyors found large displacements of the foundation slab of the 4th unit. As a result, began to appear violated vibration and balancing of turbine generators number 7 and 8, which eliminated the occurrence as teams of specialists.
   April 14, 1986 there was an anomalous variation of atmospheric pressure DP, which is the first derivative of the variation of gravity acceleration D g. Next began the buildup of atmospheric pressure, the bifurcation point near Chernobyl which was formed on April 25.
   In the night from 25 to 26 April launched active geophysical processes (Fig. 1). Arising gravitational dynamic processes and vibration caused delay emergency entry absorbing elements into the core of CPS and the destruction of a number of structural elements that nullified the action of the plant management and the 4-th power and led to disastrous results.
   Similar geophysical location typical for Moscow. In the capital works were carried out to explore its deep structure, identifying faults geodynamically unstable (seismically) zones, determine the potential seismic hazards, as well as the influence of anthropogenic activities intensively developing metropolis on the geological environment and to determine its response.
   Studies have shown that Moscow is located at the intersection of two transcontinental faults on its territory established the presence of latitudinal, diagonal and circular faults, forming blocks of several hundred meters. Analysis emergencies Research 80s showed the spatial relationship with the position of the fault accidents [4].
  
   To be continued.

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