RU2528184C1 - Foundation for structure of tower type - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: foundation for a pillar or a structure of tower type includes an upper shell in the form of a truncated cone that expands towards the base. In order to increase bearing capacity of the foundation, the upper shell is made on support lower shells connected in the upper part, which are made in the form of an inner cylindrical and outer shell in the form of a truncated cone, which expands towards the base, made with a ledge in the lower part below the inner cylindrical shell by 0.1 of the foundation diameter, and having an angle of inclination to the vertical line of the inner side, which is equal to the angle of the inner friction of the foundation soil. In the inner part of the shells there are materials in the form of soil and cement soil of different strength and under different angle.

EFFECT: increased bearing capacity of a foundation, reduced labour intensiveness and material intensity.

2 cl, 2 dwg

Description

The invention relates to the field of construction.

Known foundation, including placed on a soil base support disk and the outer and inner conical shell [1].

A disadvantage of the known foundation is the significant complexity with a low bearing capacity.

The closest technical solution to the proposed invention is the foundation, including a hollow kneecap, the lower part of which has the shape of a truncated cone expanding downward, and a base plate [2].

The disadvantage of this foundation is the high material consumption and complexity.

The purpose of the invention is to reduce the complexity, material consumption and increase the bearing capacity of the foundation.

This goal is achieved in that the base for the column or tower-type structure, including the upper shell in the form of a truncated cone, expanding to the base, in order to increase the bearing capacity of the foundation, the upper shell is performed on supporting lower shells connected in the upper part, made in the form of an inner cylindrical and an outer shell in the form of a truncated cone, expanding to the base, made with a protrusion in the lower part below the inner cylindrical shell by 0.1 of the diameter of the foundation, and I have s angle of inclination to the inner side of the vertical, equal to the angle of internal friction of soil foundation. Moreover, materials in the form of soil and cement ground of different strengths and at different angles are laid in the inner part of the shells. Moreover, the material of the cylindrical shell is laid without formwork and is made with a recess in the form of a cone, with expansion to the upper part for better distribution of stresses to the base and to prevent displacement of the upper shell.

Figure 1 shows the proposed foundation, a vertical section; figure 2 is a horizontal section of the foundation aa.

The proposed foundation consists of an upper conical shell 8, with fillers of the inner lower part 6 and the upper part 7, made with a joint in the form of a cone 4, supported on the lower connected in the upper part of the cylindrical inner shell 2 and the outer conical shell 3, with the protrusion 5, in inside of which aggregate 1 is located.

The upper conical shell 8 is made truncated, facing an expanding part toward the base and is mounted on the lower supporting shells connected at the top, made in the form of an inner cylindrical 4 and an outer shell in the form of a truncated cone with an extension to the base 3, with protrusions 5 arranged below the inner cylindrical shells on 0.1 of the diameter of the foundation. The inner fillers 6 and 7 have a junction in the form of a cone 4 for a more uniform distribution of stresses and to prevent displacement of the upper shell.

The technology of foundation construction is carried out with the following sequence. On the prepared base, the inner element 1 of the lower shells connected at the top is made of soil, then the shells 2 and 3 are simultaneously concreted with the protrusion device 5, then the soil 6 is filled into the resulting inner shell 4 with the excavation device in the form of a cone 4 facing the upper part foundation, after the aggregate 7 of the outer shell 8 is made from cement soil, then the outer shell 8 is reinforced and concreted.

The proposed foundation has a high bearing capacity, low complexity and low material consumption.

INFORMATION SOURCES

1. USSR author's certificate No. 723037, cl. E02D 27/01, 1980.

2. USSR Copyright Certificate No. 12882270, cl. E02D 27/42, 1987.

Claims (1)

1. The base for the column or tower-type structure, including the upper shell in the form of a truncated cone, expanding to the base, characterized in that, in order to increase the bearing capacity of the foundation, the upper shell is made on the lower supporting shells connected in the upper part, made in the form of an inner a cylindrical and outer shell in the form of a truncated cone, expanding to the base, made with a protrusion in the lower part below the inner cylindrical shell by 0.1 of the diameter of the foundation, and having an angle of inclination to the vertical of the inner side, equal to the angle of internal friction of the base soil, with materials in the form of soil and cement soil of different strengths and at different angles laid in the inner part of the shells.
2 The foundation according to claim 1, characterized in that the material of the cylindrical shell is laid without formwork and is made with a recess in the form of a cone with an extension to the upper part to better distribute the stresses on the base and prevent displacement of the upper shell.

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