SU407143A1 - DEVICE FOR EDUCATION WELLS IN GROUND - Google Patents

Description

The invention is intended to form wells and tunnels in compressible soil without excavation.

The device for the formation of wells in the ground, including the working body with eccentric rolling rollers, is ejected.

This device has a large capacity and power loads caused by compaction of the soil immediately from zero to a predetermined diameter, and the need to strengthen (lining) the wellbore after penetrating it with such a working body.

For the purpose of lining the walls of the wells with a mixture of soil and a holding solution, the proposed device is made with an agitator having feeders and a conical drilling screw simulated in a cavity formed in the working tool, at the remote end of which additional eccentric rollers are installed.

The drawing shows a diagram of the proposed device.

The device has a shaft D on which eccentric sleeves 2 are fixed with conical eccentric rollers 3 and 4 mounted on a 1IH with the possibility of free rotation. The shaft has a central zero 5 in which is placed a conical drilling spike 6 with a shaft 7. Shafts / and 7 are coaxial and can rotate in opposite directions. Shaft - / with drill mounted in it

the screw 6 is passed through the broom disc 8. The shaft / has openings 9 for ground exit and openings 10 for entry into the slurry solution, blades // for movement and a gear wheel 12 fixed coaxially with the stirrer 8. The mixer is connected by feeders 13 with a gap between the walls wells and additional rolling rollers 4 and 14. Meshchalka and M drum fixed coaxially to the roller 4 on its rear end. The pins 15 of the feeders 13 are engaged with the gear wheel 12. All components are mounted in the housing 16.

During the formation of the well, the shafts / and 7 rotate in opposite directions and simultaneously move progressively. At the same time, the drilling auger 6 destroys the bottom hole and moves it through the holes 9 to the baffle 5. A primary well is formed.

Through the holes 10 in the bastard enters the mortar. The mixture is moved by blades mi /). One of the rollers 3 and 4 is rolling, and the casing 16 - the stabilization of the well to the maximum diameter. Due to the eccentric position relative to the axis of the borehole, the roller 4, making rolling, slowly rotates, and with it the blender 8 and the roller 14. The mixture in the mixer 8 gains access to the feeder 13. Screws / 5 of the feeder 13 constantly rotate the toothed wheel 12 and capture the mixture that enters the gap between the walls

wells 11 with rollers 4 and 14. The latter form and compact the laid layer of the mixture, rolling it to obtain a predetermined diameter. Screws 15 release the mixture into the first gap between the paved mixture wall and the rollers 14, which is formed due to the eccentricity of the roller 14 relative to the shaft 1. If there are several feeders 13 that are distributed around the agitator's body, the uniform layer is fed to the entire perimeter of the well.

The device is calculated so that there is always a slight excess of the mixture. This ensures guaranteed filling of the gap between the borehole wall and the roller 14 with the compacted mixture. Excess mixture is forced by the feeders 13 and the roller 14 against the roller 4, which compacts it together with the borehole wall.

Subject invention

Device for the formation of wells in the ground, including a working body with eccentric rolling rollers, characterized in that, with the aim of lining the walls of the well with a mixture of soil and cementing solution, it is made with a mixer having feeders and a conical drilling screw, mounted in a cavity formed in the working body, at the remote end of which the additional eccentric rolls are installed.

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