SU817150A1 - Screens for protecting foundations of buildings and structures from action of osckcations - Google Patents

Description

(54) SCREEN FOR THE PROTECTION OF THE FOUNDATIONS OF BUILDINGS, CONSTRUCTIONS FROM EXPOSURE TO VIBRATIONS

The invention relates to the construction, in particular to the construction of screens for the protection of building foundations, structures against the effects of seismic vibrations. A known screen for protecting foundations of buildings} from the effects of vibrations, including a series of wells located in the ground around the base of the foundation and filled with material that absorbs baths. The closest to the proposed technical solution is a screen to protect foundations of buildings built from vibrations, including A trench placed around the basement contour, filled with material, absorbs t2l vibrations. A disadvantage of the known screens is the low damping efficiency. The purpose of the invention is to increase the efficiency of damping vibrations. The goal is achieved by the fact that in the screen to protect the foundations of buildings, structures from the effects of vibrations, including trenches placed around the base contour, filled with material, we see vibrations, the trench is made of curved sections connected by their end sections, curvilinear sections can be facing towards oscillation or convexity or concavity. The drawing shows a screen to protect the building foundation, the structure from the effects of vibrations, a general view. The screen includes a trench 2 placed around the foundation contour 1, made of curved sections 3 connected by their end sections, facing convexity 4 (or concavity 5) opposite to vibrations, and filled with vibration absorbing material. Curved sections 3 can be performed, for example, from reinforced concrete shells. The screen works as follows. Oscillations propagating in the ground, meeting on the path an obstacle in the form of a trench from the curvilinear sections of the slots, are dispersed in the surrounding soil. The vibrations are partially absorbed by the material filling the trench, while the dispersion of vibrations occurs in horizontal directions over the entire height of the screen. The convexity of the screen improves its reflectivity. To improve the separation of the waves penetrated or arisen inside the screen, it is advisable to curvilinear sections. Convex the buildings and structures with a convexity. In order to better display vibrations, it is advisable to arrange two trenches — an outer curved section of the section, curved towards the outward oscillations, and an inner one of the curvilinear sections facing the base towards the foundation.

The use of the screen increases the efficiency of vibration damping and reduces the amount of work on its construction due to the possible maximum penetration of the building to the foundation.

Claims (3)

1. Screen to protect the foundations of buildings, structures from oscillations, including a trench placed around the base of the foundation, filled with vibration absorbing material, characterized in that, in order to increase the efficiency of damping vibrations, the trench is made of connected end sections of curvilinear sections. 2. According to Claim 1, the report is that the convexity of the curvilinear sections of the trench is directed towards the oscillations. 3. The screen according to claim 1, is also distinguished by the fact that the concavity of the curvilinear trench sections is reversed. 5 towards hesitation Sources of information taken into account in the examination 1. USSR author's certificate 0 № 215100, cl. E 02 O 27/34, 1966. .2. Author's certificate of the USSR No. 601355, cl. E 02 O 27/34, 1976.