Grouting hole grouting auxiliary leakage preventing device

Abstract

The utility model provides an auxiliary leakage preventing device for grouting of a grouting hole, and belongs to the technical field of coal mine drilling grouting. Comprising a carrying bed, an arc-shaped base carrying plate is arranged at the top of the carrying bed, an arc-shaped seam pressing plate extending outwards is arranged on the front section of the arc-shaped base carrying plate, grips of L-shaped structures are symmetrically arranged on the two sides of the carrying bed, a bottom grip is arranged in the middle of the bottom of the carrying bed, and the bottom grip is axially perpendicular to the bottom face of the carrying bed to be welded and fixed to the carrying bed. The device has the advantages of being low in cost, high in efficiency, easy to operate, high in adaptability and easy to popularize in a large range.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal mine drilling grouting technical field, concretely relates to a grouting hole grouting auxiliary leakage prevention device. BACKGROUND

[0002] Drilling grouting technology can significantly improve the support capacity of fragile surrounding rock, effectively block the fissure path of water seepage, and artificially establish a waterproof barrier by injecting special cement slurry, high polymer material or composite grouting liquid into the deep layer of coal and rock mass and utilizing the strong bonding, filling and insulation characteristics of these materials after solidification. This technology has been widely adopted in the stable treatment of mine roadway surrounding rock, the repair of goaf collapse, the prevention of sudden water damage and sand disaster, and the sealing operation of gas extraction drilling and other key links.

[0003] During the construction grouting process of the grouting hole, the hole sealer, as a key device for blocking the leakage of grout, usually adopts a capsule type structure or a mechanical structure, aiming to tightly close the drilling hole. However, in actual operation, factors such as unstable grouting pressure and roughness difference of the drilling wall often cause a small to millimeter-level annular leakage channel between the hole sealer and the hole wall. These leakage channels become the path of grout loss during grouting operation, resulting in the loss of part of the grout, which not only directly leads to the wasteful consumption of grouting materials, but also limits the effective diffusion radius of the grout, reducing the filling density of the target fissure and further weakening the reinforcement or waterproof effect of the grouting operation. More seriously, under high-pressure grouting conditions, continuous grout leakage may force the grouting equipment to frequently start and stop to adjust the pressure, which not only causes sharp fluctuations in grouting pressure, but also may cause the segregation of grout, further adversely affecting the uniform distribution of grout in the fissure and its consolidation strength.

[0004] The prior art CN221195094U discloses an anchor rod grouting plugging device, which comprises a mounting disc and an extension pipe, the mounting disc is connected with one end of the extension pipe, the mounting disc is used for being arranged on the outer wall of the rock-soil body outside the anchor hole, and the extension pipe is used for extending into the anchor hole; the mounting disc is provided with a first anchor rod through hole and a first grout pipe through hole, the end face of the extension pipe away from the mounting disc is provided with a second anchor rod through hole and a second grout pipe through hole, the first anchor rod through hole and the second anchor rod through hole are oppositely arranged, and the first grout pipe through hole and the second grout pipe through hole are oppositely arranged; a check valve is arranged on the second grout pipe through hole; a first leakage prevention part is arranged in the first anchor rod through hole, and a first opening is arranged on the first leakage prevention part, so that the anchor rod can pass through the first opening and the second anchor rod through hole in sequence and enter the anchor hole; a second leakage prevention part is arranged in the first grout pipe through hole, and a second opening is arranged on the second leakage prevention part. It can only grout and plug the drilling hole after sealing, and cannot grout and prevent leakage for open drilling holes.

[0005] Based on the above situation, the grouting site urgently needs a low-cost, high-efficiency, easy-to-operate, and adaptable slurry leakage blocking device and its supporting process. Utility model content

[0006] In view of the above-mentioned deficiencies, the utility model aims at providing a grouting hole grouting auxiliary leakage blocking device, which is not only low in manufacturing cost and easy to operate, but also effectively blocks the gap leakage between the hole sealer and the hole wall.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme:

[0008] The utility model provides a grouting hole grouting auxiliary leakage blocking device, which comprises a carrier bed, the top of the carrier bed is provided with an arc-shaped base carrier plate, the front section of the arc-shaped base carrier plate is provided with an arc-shaped joint plate extending outwards, the two sides of the carrier bed are symmetrically provided with L-shaped handles, and a bottom handle is arranged at the middle position of the bottom of the carrier bed and is axially welded and fixed to the bottom surface of the carrier bed.

[0009] Further, the carrier bed is welded and fixed to the outer side of the rear section of the arc-shaped base carrier plate, and the front section of the arc-shaped base carrier plate is connected to the arc-shaped joint plate through a plurality of fixed nuts.

[0010] Further, a plurality of connecting bolts are arranged at the connection position of the arc-shaped joint plate and the arc-shaped base carrier plate, and the arc-shaped base carrier plate is provided with holes corresponding to the positions of the connecting bolts and is fixed to the connecting bolts through fixed nuts.

[0011] Further, the L-shaped handle comprises a lateral handle symmetrically arranged horizontally on the two sides of the carrier bed and a top handle vertically arranged upwards at the end of the lateral handle.

[0012] Further, the size of the arc-shaped joint plate is determined according to the diameter of the grouting hole, and a plurality of arc-shaped joint plates matched with the grouting hole are prepared according to common grouting holes.

[0013] Further, the arc-shaped base carrier plate is cut from a pipe with a large radius, the arc length of the arc-shaped base carrier plate is 1 / 3-1 / 2 of the circumference of the pipe, and the arc length of the arc-shaped joint plate is 1 / 4-1 / 3 of the circumference of the pipe.

[0014] Further, one side of the arc-shaped base carrier plate in contact with the carrier bed is an outer convex surface, and the outer convex surface of the arc-shaped joint plate is in contact with the inner concave surface of the arc-shaped base carrier plate.

[0015] Further, the number of fixed nuts fixed to the outer convex surface of the arc-shaped base carrier plate is not less than 2.

[0016] Beneficial effects: based on the phenomenon of small flow leakage after the grouting hole is sealed by the grouting hole sealer, the application proposes a grouting hole grouting auxiliary leakage blocking device, the arc-shaped non-closed feature of the arc-shaped base plate can be extremely matched with the exposed grouting pipe body operation, the front end of the arc-shaped pressure joint plate matched with the radius of the grouting hole can smoothly cut into the gap space of the grouting hole and perform high-quality compaction on the sealing cotton and sealing tobacco, and the application device structure is simple, the cost is extremely low, the matching process method steps are simple and easy to operate, and the device is easy to popularize on a large scale. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the grouting hole grouting auxiliary leakage blocking device in the embodiment of the application.

[0018] Figure 2 It is a structure front view of the grouting hole grouting auxiliary leakage blocking device in the embodiment of the application.

[0019] Figure 3 It is a structure side view of the grouting hole grouting auxiliary leakage blocking device in the embodiment of the application.

[0020] Figure 4 It is a structure top view of the grouting hole grouting auxiliary leakage blocking device in the embodiment of the application.

[0021] In the figure, the serial number: 1 is a bed, 2 is an arc-shaped base plate, 3 is an arc-shaped pressure joint plate, 4 is a fixed nut, 5 is a connecting bolt, 6 is a bottom handle, 7 is a side handle, and 8 is a top handle. DETAILED DESCRIPTION

[0022] The application will be further described below in combination with the drawings and embodiments.

[0023] As shown in Figure 1 and Figure 2 , the application discloses a grouting hole grouting auxiliary leakage blocking device, which comprises a bottom handle 6, the bottom handle 6 is axially perpendicular to the bottom surface of a bed 1 and is welded and fixed at the bottom of the bed 1, the bed 1 is welded and fixed at the outer side of the rear segment of an arc-shaped base plate 2, a plurality of fixed nuts 4 are welded and fixed at the outer side of the front segment of the arc-shaped base plate 2, an arc-shaped pressure joint plate 3 is connected to the inner side of the front segment of the arc-shaped base plate 2 through a connecting bolt 5, side handles 7 axially perpendicular to the side surface of the bed 1 are respectively welded and fixed at the two sides of the bed 1, and the outer end of the side handle 7 and a top handle 8 parallel to the bottom handle 6 are welded and fixed in one body.

[0024] As shown in Figure 3 and Figure 4As shown, the carrier bed 1 is respectively connected and fixed with the arc-shaped base carrier plate 2, the bottom-directed handle 6, and the side-directed handle 7 as a whole, and the arc-shaped compression joint plate 3 can be flexibly replaced by the connecting bolt 5 according to the diameter of the grouting hole and the working condition requirement.

[0025] The arc-shaped base carrier plate 2 is made of a waste pipe with a larger radius, and the arc length is 1 / 3-1 / 2 of the original pipe circumference length. The arc-shaped compression joint plate 3 is prefabricated according to the commonly used grouting hole radius parameter, and the arc length is 1 / 4-1 / 3 of the original pipe circumference length.

[0026] The outer side convex surface of the arc-shaped base carrier plate 2 is in contact with the carrier bed 1, and the outer side convex surface of the arc-shaped compression joint plate 3 is in contact with the inner side concave surface of the arc-shaped base carrier plate 2.

[0027] The number of the fixed nuts 4 fixed on the outer side convex surface of the arc-shaped base carrier plate 2 is not less than 2.

[0028] A grouting hole grouting leakage blocking method attached to an auxiliary leakage blocking device comprises the following steps:

[0029] Step 1: After the grouting pipe, hole sealer and the like are inserted into the grouting hole in the preparation work before grouting, the hole sealer is completely inserted into the hole and keeps a remaining distance of 100mm-500mm from the grouting hole mouth.

[0030] Step 2: The cotton silk and cotton yarn twisted rope is inserted into the space gap hole mouth between the grouting pipe body and the grouting hole wall, and then the front end of the arc-shaped compression joint plate 3 of the auxiliary leakage blocking device is used to press the cotton silk and cotton yarn into the deep part of the space gap between the grouting pipe body and the grouting hole wall. The above operation is repeated by continuously inserting new cotton silk and cotton yarn until only a little gap space is left in the grouting hole mouth.

[0031] Step 3: One medium-speed setting resin medicine roll is taken and the resin mortar and curing agent package are respectively unpacked. The resin mortar is inserted into the gap between the pipe body and the hole wall, and the front end of the arc-shaped compression joint plate 3 of the auxiliary leakage blocking device is used to slowly press the mortar into the gap. Then the curing agent is inserted into the gap between the pipe body and the hole wall, and the front end of the arc-shaped compression joint plate 3 of the auxiliary leakage blocking device is used to slowly press the curing agent into the gap. Finally, the front end of the arc-shaped compression joint plate 3 of the auxiliary leakage blocking device is used to press into the gap for several times to extrude the resin mortar and the curing agent, so as to facilitate the setting of the resin mortar and the curing agent.

[0032] Step 4: After the resin mortar and the curing agent are mixed, the grouting operation can be carried out when the setting time of the resin medicine roll is exceeded.

[0033] Further, in step 3, the resin mortar and the curing agent are respectively pressed into the gap, and then mixed. This step can also be performed by mixing the resin mortar and the curing agent first, and then pressing them into the gap, but it is noted that the time from the mixing of the two materials to the pressing into the gap should not exceed the setting time of the resin medicine roll.

[0034] It is apparent to a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, which are exemplary and non-limiting, the scope of the present application being defined by the claims hereafter rather than the above description, and that no figure reference in the claims should be considered as limiting the claim to which it refers.

Claims

1. A grouting auxiliary leakage blocking device for a grouting hole, characterized in that, The utility model relates to a kind of injection molding machine, including carrier bed (1), carrier bed (1) top is equipped with arc base plate (2), the front section of arc base plate (2) is equipped with the arc-shaped compression joint plate (3) extending out, carrier bed (1) both sides are symmetrically equipped with L-shaped structure handle, carrier bed (1) bottom middle position is equipped with bottom handle, bottom handle (6) axial vertical carrier bed (1) bottom surface welding fixed in carrier bed (1);Carrier bed (1) is welded and fixed in the outer side of the arc base plate (2) rear section, and the front section of arc base plate (2) is connected with arc-shaped compression joint plate (3).

2. The auxiliary leakage stopping device for grouting hole according to claim 1, characterized in that: A plurality of connecting bolts (5) are arranged at the connecting position of the arc-shaped compression joint plate (3) and the arc base plate (2), and the arc base plate (2) is provided with holes corresponding to the positions of the connecting bolts (5), and the connecting bolts (5) are fixed by fixing nuts (4).

3. The auxiliary leakage stopping device for grouting hole according to claim 1, characterized in that: The L-shaped handle includes side handles (7) symmetrically arranged horizontally on both sides of the carrier bed (1), and top handles (8) vertically arranged on the end portions of the side handles (7).

4. The auxiliary plugging device for grouting hole according to claim 1, characterized in that: The size of the arc-shaped compression joint plate (3) is determined according to the diameter of the grouting hole, and a plurality of arc-shaped compression joint plates (3) matched with the grouting hole are prepared according to the common grouting hole.

5. The auxiliary plugging device for grouting hole according to claim 4, characterized in that: The arc base plate (2) is cut from a pipe, and the arc length of the arc base plate (2) is 1 / 3-1 / 2 of the circumference of the pipe, and the arc length of the arc-shaped compression joint plate (3) is 1 / 4-1 / 3 of the circumference of the pipe.

6. The auxiliary plugging device for grouting hole according to claim 4, characterized in that: The outer side of the arc base plate (2) is convex, and the outer side of the arc-shaped compression joint plate (3) is convex and in contact with the inner side of the arc base plate (2).

7. The auxiliary leakage stopping device for grouting hole according to claim 3, characterized in that: The number of the fixing nuts (4) fixed to the outer side of the arc base plate (2) is not less than two.

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