SU1728385A1 - Method for building foundation - Google Patents

Abstract

The invention relates to the construction and can be used in the construction of foundations under the walls and columns of residential and industrial buildings. The purpose of the invention is to increase the bearing capacity of the foundation. The foundation construction method involves the formation of pyramidal blocks 1 and the combination of each pair of blocks 1 with slab 2 in cavities crammed under them. Under each pair of blocks 1 and plate 2 cavities are rammed simultaneously. The bottom of the cavity under the slab 2 in longitudinal section is curved with an upward convexity. The cavities for blocks 1 are made at a distance (1-1.5) d between them, where d is the depth of the cavity for block 1. 5 Il, fc

Description

The invention relates to the construction and can be used in the construction of foundations under the walls and columns of residential and industrial buildings.

The purpose of the invention is to increase the bearing capacity of the foundation.

FIG. 1 shows a fragment of the profile of the conjugate strip footing; Fig. 2 shows variations of the cross section of the pyramidal block; on fig.Z - basement profile under the column with a conventional knee; figure 4 - the profile of the basement under the column with a recessed knee; Fig. 5 shows a fragment of the profile of a conjugated compensated basement.

The foundation construction method involves the formation of pyramidal blocks 1 and the integration of each pair of blocks 1 by slab 2 in the cavities crammed under them, and for each pair of blocks 1 and slab 2 the cavities are tamped simultaneously. The bottom of the cavity under the slab 2 in a longitudinal section is made curved with an upward convexity, the cavities under the blocks 1 are made at a distance (1-1.5) d between them, where d is the depth of the cavity under block 1. The foundation is performed

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by evolving in the ground one two-element tamping of two matched cavities and subsequent concreting with a vacuum. The junction of two pyramidal blocks 1 is formed by reinforced reinforced concrete slab 2, which ensures the work of the foundation as an arched structure. The arch ram of the tamper during soil tamping also ensures the compaction of the soil in the upper part, where it is always under different conditions that it is softened. Conjugation of two pyramidal basement blocks allows using the effect of the mutual influence of wedge elements in the ground. If necessary, one or another rigid material (crushed stone, gravel, etc.) can be tamped to increase the bearing capacity of the base. The angle of inclination of the faces of the pyramidal blocks to the vertical is 3-

8 °. To reduce the base material consumption, the blocks on the side surface have V-shaped or semi-circular grooves.

Forum and Foundation Method, including the formation of pyramidal blocks in cavities crammed under them and the joining of each pair of blocks with a slab, characterized in that, in order to increase the bearing capacity of the foundation, the slab is formed with a cavity crammed under it, the cavities for each pair of blocks and the slab are extruded simultaneously, with the bottom of the hollow under the slab in longitudinal section being curved with an upward convexity, and the cavities for the blocks are one t another, equal to (1.0-1.5) d, where d is the depth of the cavity under the blocks.

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Claims (1)

5 FORMULA AND PORTRAIT A method of erecting a foundation, including the formation of pyramidal blocks in the cavities rammed under them and uniting each pair of blocks with a slab, 10 characterized in that, in order to increase the bearing capacity of the foundation, a slab is formed from a cavity rammed under it, with cavities for each pair of blocks and under the slab tamped15 simultaneously, while the bottom of the cavity under the plate in a longitudinal section is curved with a convex upward, and the cavity under the blocks is performed at a distance from one another equal to (1,01,5) d, where d is g bast cavity under the blocks. I 1728386 FIG. 2 Fig.Z