SU1004540A1 - Foundation - Google Patents

Description

one

FIELD OF THE INVENTION The invention relates to construction, in particular to foundation construction on subsurface soils.

There is a known method of fixing the position of a structure on an unstable soil by installing a lattice structure filled with loose material between the foundation and the structure 1.

The disadvantage of such a method is the need to move the lattice structure upward in order to pour out bulk material.

The closest technical solution to the invention is the foundation for buildings or structures erected on subsiding points, including the upper continuous section with vertical through holes filled with bulk material, and foundation blocks. This foundation contains reinforced concrete with, in the body of which are located compensating devices in the form of a glass, to the inner side of which a conical diaphragm with a hole in the center is attached, the hollow case of the device being mounted in reinforced concrete in such a way that its free edges are placed in laying the gap formed in the foundation block 2.

However, this foundation is difficult to manufacture, is not reliable enough in operation, as in the case of uneven soil subsidence, causing the foundation blocks to rotate relative to the longitudinal axis of the foundation or relative to the vertical axis, it is possible that the movable hollow body is jammed in the foundation slits

10 blocks and damage compensating devices. The wedging of the movable body is possible even in the case of a uniform subsidence of the base due to the fines falling into the slots.

15

The aim of the invention is to ensure the safety of the building and foundation elements with uneven subsidence of soil, causing rotation of the foundation blocks, improving the reliability of joint operation of the foundation and the elevated part of the building, simplifying the design, convenience of providing additional material with sprinkling, as well as injection, for example, cement mortar , after stabilization of soil deformations.

The goal is achieved by the fact that in the foundation for buildings or structures erected on subsiding soils, including the upper continuous section with vertical through holes filled with bulk material, and the foundation blocks, the latter are arranged with a gap of one relative to the other and are made with an upper longitudinal grooved the groove, while the upper one is installed dry into the grooves of the blocks, and the width across sa does not exceed the distance between the inner side faces of the groove.

In the foundation, the openings of the upper continuous section are located outside the wall of the building.

FIG. 1 shows the foundation before the base subsidence; in fig. 2 - the same, after a drawdown; in fig. 3 shows section A-A in FIG. one; in fig. 4 shows a section BB in FIG. 2

Wall 1 is supported on continuous c 2, in which there are through vertical holes 3 filled with bulk material. On c 2 it is installed dry on the foundation blocks 4 having grooved grooves 5, Holes 3 are covered with removable roofs 6. The foundation is installed on the subsiding base 7.

When the drawdown of the drawdown base 7 is locked, the foundation blocks 4, which possess considerable rigidity, are almost not deformed, are lowered and rotated after the subsidence of the soil, thus freeing the orifices 3 in the upper part of 2 sausage. The loose material is loosely ejected into the groove of the lower part and gradually compacted under the action of the settling top, forms separate temporary supports under it, the height of which depends on the degree of subsidence of the base. The top of the holes is located in an accessible place, which allows for periodic inspection

and additional filling of the openings with bulk material.

After the subsidence is stabilized, the cement slurry is injected into the slots of the lower part through the openings, which ensures tight joints of both parts and the initial working conditions of the foundation.

Claims (2)

1. The foundation for buildings or construction-scientific research institutes erected on subsiding soils, including the upper continuous section with vertical through holes, filled with bulk material, and foundation blocks, characterized in that, in order to ensure the preservation of the building and foundation elements with uneven subsidence of soil, causing rotation of the foundation blocks, improving the reliability of the joint work of the foundation and above the earth part of the building, and simplifying the design, the foundation blocks are located with a gap one relative to the other and are made with an upper longitudinal grooved groove, and the upper long side is set dry in the grooves of the blocks, and the width of the wire does not exceed the distance I am waiting for the inner side edges of the slot. 2. A foundation according to claim 1, characterized in that, in order to conveniently provide additional filling of the bulk material in the process of subsidence and injection, for example, cement mortar, after stabilization of the soil deformations, the openings of the upper continuous section are located outside the wall of the building. Sources of information taken into account in the examination 1. Patent of the USSR No. 449498, cl. E 02 D 35/00, 1970. 2. USSR author's certificate No. 354066, cl. E 02 D 27/34, 1970 (prototype). //////////////////// | ///////////////// X // rl 0ui: 1 //// 7 //////// (/// f // l / nifH // fini //} n (l) ll / l / IUI / UUi 2 J7 l 111II11 III 11 nil III .J V (W2.