RU1795004C - Method for protection of buildings from adverse effect of underground workings - Google Patents

Abstract

Usage: in construction. SUMMARY OF THE INVENTION: To protect buildings from the harmful effects of underground workings, a notch is developed in the ground and filled with pliable material. A recess is designed close to the foundation of the building. The lateral surface of the recess is curved, corresponding to the sliding surface of the compliant material, and mated with the sole of the foundation. Pliable material is placed on the side surface of the recess at an angle of its natural slope, with subsequent filling of the sinuses formed by the surface of the foundation and material. 1 ill.

Description

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The invention relates to construction and relates to methods for protecting buildings from the effects of mining.

A known method of erecting water-pressure earth structures, which provides for the device of layer-by-layer alluvial soil. The method is aimed at increasing the water resistance of earthworks. The disadvantage of this method for protecting buildings from soil displacement is the arrangement of soil layers on straight surfaces, which is inefficient, because soil is shifted by its pressure on the building foundation along a curved sliding surface.

The closest to the proposed method the technical essence and the achieved effect is a method of protecting buildings from the harmful effects of aboveground mine workings, including a device

vertical compensation trenches filled with compressible material. This method also has the above disadvantage. In addition, the effectiveness of the method decreases with increasing depth of the foundation, because pliable material must be protected from the natural pressure of the soil or to increase the width of the compensation trench, which is uneconomical. In this case, attention should be paid to the absence of a method for calculating compensation trenches, which does not allow us to estimate the magnitude of the decrease in soil pressure on the building foundation.

The aim of the invention is to increase the efficiency of protecting buildings against soil movement.

The goal is achieved in that the excavation in the ground is developed close to the foundation of the building, its lateral surface is high.

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they are filled with a curvilinear, corresponding sliding surface of the compliant material and mate with the sole of the foundation, and the compliant material is placed on the side surface of the recess at an angle; its natural slope, followed by filling the sinuses formed by the surface of the foundation and material.

The effectiveness of the proposed method consists in reducing the efforts on the foundation of the building from moving soil. This is due to the displacement of the soil along a predetermined sliding surface, which allows the exact determination of the frontal pressure of the soil per base; - ;. - .; ..

The nature of the lower curved face of the slip line is determined by several methods, for example, a circular cylindrical slide surface.

Compared to the basic version, the prices are m-prototype, reducing the additional efforts acting on the foundations of the building; being built in the undermined area, it allows to reduce the cost of constructive protective measures, for example, when arranging spacer links between the foundations, the forces in the latter from the frontal pressure of the soil are reduced several times,

Claims (1)

The claims The way to protect buildings from harmful influ-; no underground workings, including the development of a excavation in the ground and filling it with a compliant Material, with the exception that, in order to increase the efficiency of building protection, a excavation is being developed that is exactly the foundation of the building, its which saves concrete and reinforcing steel. The economic effect is determined separately in each case, depending on the size of the building in the plan, the dimensions of the foundations, the depth of their foundation, the deformations of the earth's surface, etc., The drawing shows the foundation of the building to be protected in the direction of soil movement.  The proposed protection method is implemented as follows. . Defined by the material, which will fill the spruce / outcome on the condition that its physical and mechanical characteristics were smaller than the ground on which the building was being erected. The main reduced value of the soil characteristics should be considered as grip,. Produce a passage of the pit as follows so that the face 1 of the soil compartment 2 matches the shape of the curved sliding surface of the selected material 3. After the foundation 4 has been raised, the amount of the selected material 3 is poured onto the slope 2 so that it is located from the level of the base of the foundation to the day surface, in the angle of its natural slope 5. Then the remaining sinus between the foundation 4 and the material 3 is filled natural soil backfill. J the lateral surface is made along a curved, corresponding sliding surface of the compliant material, and mated with the sole of the foundation, and the compliant material is placed on the lateral surface of the recess at an angle of its natural slope, followed by filling of the sinuses formed by the surface of the foundation and material.