SU390229A1 - - Google Patents

Description

The method is intended for strengthening the soils of natural bedding directly on the construction site.

There is a method of hardening soils by burning them with gaseous products in windows. During soil firing, the processes of destruction of physical and chemical bonds between soil particles and the displacement of liquid (moisture, gases, etc.) from the soil mass in the flat-radial and vertical directions occurs slowly.

In order to accelerate the diffusion of the tenon carrier into the soil in the borehole, a field of ultrasonic vibrations is created, which can be created by a generator for burning toning, equipped with an ultrasonic transducer.

The method of soil stabilization is as follows.

Drill a hole with a diameter of 100-150 mm to the required depth. It is equipped with a generator for burning fuel, equipped with an ultrasonic transducer. Well sealed. Fuel and compressed air are supplied to the generator. Fuel is ignited and trapped in the generator combustion chamber. The incandescent flue gases resulting from the combustion are transferred to an ultrasonic transducer. Compressed air is supplied to the inverter, which is displaced from

the hole nI gases n enters the working space of the well. The outlet temperature of the converter is 800-900 ° C.

In the well space, a powerful physical field is created by the generator and the converter: thermal, gas dynamic, and acoustic. All three fields are interrelated and have the following physical parameters: Temperature in the well, ° C 800-900 Pressure =} p.1pe In the well, atm0,1-3,0

The level of sound power, db140-220

Frequency, kgs40-70

The reinforcement of soil around the well is produced from the bottom up through the stages. The exit of flue gases with a temperature of more than 400 ° C must be ensured directly at the wellhead within a radius of 800-1500 and / l. For safe maintenance of the installation, it is recommended to use heat resistant loadings with a diameter of up to 1500 mm.

Subject invention

1. A method of hardening soils by burning them with gaseous products in wells, characterized in that, in order to accelerate the diffusion of the coolant into the soil, in the well create a field of ultrasonic vibrations. 3 2. A method according to claim 1, characterized in that the ultrasonic vibration oscillations are created by a re4 generator for burning fuel equipped with an ultrasonic transducer.