Occurrence

Engineers and geologists are studying only lithological difference between the ground and gravity processes, ie processes occurring under the influence of gravity. When surveys are not taken into account the tectonic stress state of the geological environment with a predominance significant horizontal stress and ignored her mobility. That is why the deformation of the next building standard methods of studying the causes of this process become useless. Assumptions about the impact of sediment and soil compaction on the occurrence of cracks in foundations and walls of buildings often do not withstand scrutiny. The modern buildings of reinforced concrete have increased strength and had to be less sensitive to such processes. However, practice shows that the concrete tower blocks pop no less than the prefabricated houses.

In addition, precipitation characteristic only of loose soil and, consequently, the buildings constructed on solid rock grounds should not feel the strain. But there is a reverse pattern. In the Urals – an area where major developments enjoy rocky ground, a huge number of deformed monolithic skyscrapers. Moreover, deformation is often localized in parts of the buildings which stand on a solid rock foundation, which excludes the possibility of precipitation and condensation. This is probably due to the fact that the modern shift in the zones of active tectonic faults rigidly transmitted through rocky ground on concrete structures. Deformation take place abruptly, without mitigation, with the formation of cracks and breaks.

Buildings standing on a bed of loose sediment on the contrary more protected from the dynamic action of the tectonic faults. Thus, it is clear that the problem of identifying and exploring the moving of tectonic fractures requires special attention. High rates construction, ubiquitous high-rise construction sites and the active development of underground space requires a more thorough analysis of engineering geological conditions and geodynamic hazard of the geological environment. A considerable amount of information about the dynamic effects of tectonic zones in the engineering objects, accumulated by a number of independent researchers, requires careful analysis in order to develop an effective system prevent these adverse effects. In the future it will require substantial changes in the regulatory documentation for the conduct of engineering and geological surveys.

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