SU1113626A1 - Device for filling cracks and cavities in injection hole walls - Google Patents

Abstract

A DEVICE FOR FILLING CRACKS AND CAVES IN THE WALLS OF THE DISCHARGE SHOWER, including a tube with a spacer conical mechanism with an expansion washer placed at the end of the tube, an elastic seal and a locking mechanism located at the other end of the tube, characterized in that, in order to ensure the filling of cracks and cavities in the walls of the chip for the entire length of it under the conditions of the action of groundwater, the expansion cone mechanism is made in the form of a horse sleeve with radial slots screwed on the tube, with expanding shields placed on the tube, and the locking mechanism in the form of a press vyIolnen flange interacts with an elastic sealant. oe f iNd od

Description

The invention relates to the mining industry, in particular, to devices for filling bore holes with a cementing machine in concrete and reinforced concrete underground structures under construction and operation.

A device is known for injecting a mortar therein, into wells, including a tube, a lock with a sleeve and an elastic cuff, a check valve, a retainer 1J.

The disadvantage of this device is that it can be used to fill cracks and cavities in the walls of the hole.

The closest in technical essence and the achieved result to the proposed is a device for filling cracks and cavities in the walls of the bore-hole under pressure, including a tube with an extension conical mechanism with an expansion washer placed at the end of the tube, an elastic seal and a locking mechanism placed on another end of tube 2.

However, the known device does not provide sufficient filling of cracks and cavities in the walls of the hole.

The purpose of the invention is to ensure the filling of cracks and cavities in the walls of the hole throughout its length in terms of groundwater.

This goal is achieved by the fact that in the device for filling cracks and cavities in the walls of iiinypa under pressure, including a tube with a spacer conical mechanism with an expansion washer placed at the end of the tube, an elastic seal and locking mechanism located at the other end of the tube, the spherical conical mechanism made in the form of a conical sleeve screwed onto the tube with radial slots; the expansion washer is fixed on the tube, and the fixing mechanism is made in the form of a pressure flange, interacting .elastichnym of a seal.

FIG. 1 shows the device; on trig. 2 shows section A-A in FIG. I; in fig. 3 view of the hole after injection. I The device consists of a tube 1, a spherical conical mechanism in the form of an HS screwable tube of a conical sleeve with radial slots 2 with an expanding conical washer 3 fixed to the tube, an elastic seal 4, a pressure flange 5 and a tension handle 6.

The device works as follows.

The sleeve 2 is laid in the hole of the concrete lining with some force sufficient to create a pre-coupling with the walls of the hole. Then a tube 1 with a washer 3 is inserted into it. When tube 1 is rotated clockwise and the washer 3 is axially moved, the tail part of sleeve 2 is radially moved apart to the stop in the hole wall. The spreading force firmly secures the Tty 2 with the tube 1 in the hole. Then, the seal 4 and the pressure flange 5 are put on the tube 1, and by rotating the tension handle 6, the hole is sealed.

Due to the conical shape of the sleeve 2, virtually the entire surface of the bore-hole walls is made available to the swab of the saline solution. The cement slurry is fed into the tube 1, which penetrates into the backfill space and simultaneously fills zone B through the slots in sleeve 2 (the direction of movement of the cement slurry is indicated by arrows), and also penetrates all the defects and pores of the lining that are connected with hole area. The cement slurry cannot flow out of the hole into the exit, because the elastic compactor 4 partially enters the hole and by its conical surface reliably presses against the concrete with a sidewall, thereby sealing the hole, which is clearly seen from FIG. one.

Depending on the state of the surface of the hole on the production side, an elastic seal may also have another form, for example, the shape of a washer.

Known device designs

to inject the cement slurry, no defects in the wall of the hole are filled, and after dismantling the device, these places become a source of underground waves entering the tunnel. Under such conditions, the insertion of the hole after the completion of the injection process is technically very difficult. Cementing the wall of the hole throughout its depth, provided by the proposed design of the device (Fig. 3), completely eliminates the possibility of groundwater ingress. Thus, in the process of cementing operations, the proposed device, under the conditions of groundwater impact, simultaneously combines two operations: filling the backfill space and partial cementing.

hole.

Disassembly of the device after completion of grouting operations is carried out in the reverse order of assembly. In the cemented hole area there is a sleeve 2 that

does not adversely affect the quality of work. The empty volume of the bore-hole that was formed after the extraction of tube 1 was sealed in the usual way.

The proposed device, in comparison with the prototype, allows cementing the walls of the hole and thus eliminates the possibility of leakage after the end of loading and dismantling, significantly reduces the time required for the final embedding of the unfilled cement plugging)

 11136264

the solution of the lunypa part, essentially simplified: - people of any qualification. In addition, spares the embedding process, and the implementation of this significantly reduces labor intensity,

work becomes available to workers and the quality of work is improved.

Claims (1)

A device for filling cracks and cavities in the walls of the injection hole, including a tube with a spacer conical mechanism with an expansion washer located on the end of the tube, an elastic seal and a locking mechanism located on the other end of the tube, characterized in that, in order to ensure the filling of cracks and caverns in the walls of the borehole along its entire length under groundwater conditions, the spacer conical mechanism is made in the form of a conical sleeve screwed onto the tube with radial slots, while the expanding washer schena on the tube, and the locking mechanism vyyolnen a pressure flange cooperating with an elastic sealant. FIG. 1