SU863759A1 - Device for thermal consolidation of soil - Google Patents

Description

I

The invention relates to the reinforcement of soil in the construction of foundations and foundations of buildings and structures, in particular, to devices for thermal strengthening of the soil.

A device for thermally strengthening the soil is known, which includes a plate with sealing ribs located along the contour, a combustion chamber, perforated tubes and vibrators fl mounted on the plate. The disadvantage of this device is a decrease in the temperature of hot gases as it is distanced from the well.

The closest to the present invention is a device for thermally strengthening the soil, which includes a bottom plate with sealing edges along the contour, two separate parts of cavities, one of which has access to the atmosphere, and uniformly fixed bottom pipes alternately connected to one and the other. cavities, a combustion chamber with gas ducts connected to another part of the cavities of the stove-prigruz, pipelines for supplying fuel and compressed air, vibrators and punches f2 3,

The disadvantage of this device is that before the injection of hot gases into the ground, preliminary wells are punched in it,

10 using additional equipment, which increases the metal capacity of the device and complicates operational maintenance, reducing productivity.

15

The circuit of the invention is the reduction of metal intensity and the improvement of operating conditions.

The goal is achieved by the fact that in the device, including

Claims (2)

slab-prigruby with sealing edges along the contour, two separate parts of the cavities, one of which has an outlet to the atmosphere, and nozzles uniformly fixed from below, alternately connected to one and the other parts of the cavities, the combustor with gas producers connected to the other part of the cavities of the slab-prigruz, pipelines for supplying fuel and compressed airJ vibrators and punches, the latter are made in de-perforated pipes, coaxially connected with the nozzles, and the vibrators are installed on the plate-weights. FIG. 1 shows a device, a general view, a partial section; Fig. 2 shows the same, plan view, a partial section. The device includes a hollow plate load 1, located on its contour of the sealing edge 2, formed inside the slab 1, two separate parts of cavities 3 and 4, of which one part 3 has an outlet to the atmosphere, made in the form of air-water 5, chamber Combustion 6 with gas 7, connected to another part of the cavities 4 of the plate-prigruz 1, evenly fixed bottom of the last branch pipe 8, alternately connected to parts of the cavities 3 and 4, coaxially connected to the branch pipe 8 of the piercing made in the form of perforated pipes 9, and fixed on the plate When one loads vibrators 10. The combustion chamber 6 has a nozzle 11 with Pipelines rows 12 and 13, respectively, for at chi fuel and compressed air. The device works as follows. Before starting work, the surface of the ground is leveled and a device is installed on it, which rests on perforated pipes 9. Plate-weights 1 are installed horizontally, vibrators 10 are turned on, and pipes 9 are immersed in the ground until the sealing ribs are completely buried in the ground 2. Fuel and compressed air is supplied to nozzle 11 through lines 12 and 13 and the atomized fuel is ignited in the combustion chamber 6. Formed during the combustion of fuel, the hot gases through the gas ducts 7 are directed to the part of the cavities 3 of the loading plate I and further through the perforated pipes 9 to the ground. The hot gases, giving off heat to the ground, enter the pipes 9 connected to the cavities 4, and through them the air ducts 5 are vented to the atmosphere. After the required thermal effect, the nozzle I1 is turned off, the device is removed from the ground and relocated to a new place of ground reinforcement. Such an embodiment of the device provides a convenient and easy maintenance, which allows to increase productivity. Formula of the invention. A device for thermally strengthening the soil, including a barbed joint with sealing edges along the contour, two separate parts of the cavities, one of which has an outlet to the atmosphere, and evenly fixed bottom. branch pipes, alternately connected to one and the other parts of the cavities, the combustion chamber with the gas ducts connected to the other part of the cavities of the slab-weights, tr pipelines for supplying fuel and compressed air, vibrators and punches, characterized in that, in order to reduce metal intensity and improve operational service conditions, the punches are made in the form of perforated pipes coaxially connected to nozzles, and vibrators are mounted on a sub-load plate. SOURCE of the information taken into account during the examination 1.Aitor's certificate of the USSR 576366, cl. E 02 D 3/14, 1976. 2, USSR Author's Certificate for Application No. 2063435 / 29-33, cl. E 02 O 3/11, 1974. JO FIG. one