CN215164509U

CN215164509U - Directional grouting device

Info

Publication number: CN215164509U
Application number: CN202121026793.6U
Authority: CN
Inventors: 林灿欣; 杨俊峰; 吴华艺; 蔡兴浩; 詹宏伟; 华涛; 黄亮; 陈旋明
Original assignee: Guangdong No 3 Water Conservancy and Hydro Electric Engineering Board Co Ltd
Current assignee: Guangdong No 3 Water Conservancy and Hydro Electric Engineering Board Co Ltd
Priority date: 2021-04-22
Filing date: 2021-05-13
Publication date: 2021-12-14
Anticipated expiration: 2031-05-13

Abstract

The utility model provides a directional cementer relates to construction technical field. This directional cementer includes slip casting steel pipe (1), grout outlet (2) and fender thick liquid piece (3), and wherein the connected mode of slip casting steel pipe (1) and fender thick liquid piece (3) is: a plurality of fixing rings are welded on the grout blocking sheet (3), and the grouting steel pipe (1) penetrates through the fixing rings; or the grouting steel pipe (1) is directly welded with the slurry blocking piece (3). The utility model discloses a focus on the application scene of concrete void plate bottom grout, can make the direction of grout more concentrated, improve the grout effect; prevent the slurry from flowing into the nearby pipe ditch or soil to cause waste and environmental pollution; the pressure during the buffering slip casting, protection curb and existing trench are not destroyed.

Description

Directional grouting device

Technical Field

The utility model belongs to the technical field of the construction, a directional cementer is related to.

Background

In municipal engineering construction, the concrete panel is widely applied due to the advantages of good safety, simple construction, short construction period, low cost and the like, and the concrete panel bottom is usually hollow. The void is the discontinuity of the cement concrete pavement, and is the concrete void and deformation caused by the unqualified construction quality, the dead weight of the panel and the pavement extrusion after the concrete panel pouring construction is finished. The local void state is extremely unfavorable for the stress condition of the concrete panel, and if the stress condition is not timely treated, the stress condition can cause the diseases of corner breaking, plate breaking and the like, and the service life of the road and the running safety of the road are influenced.

And (4) grouting the concrete bottom plate which is empty in time. The grouting pipe in the prior art is developed more mature, various grouting pipes exist in the market, and people in the field carry out full research on the grouting efficiency and quality.

For example, the chinese patent application CN103061344A discloses a grouting pipe, which comprises a conical plug, a connecting rod, and a grouting pipe body connected in sequence; one end of the connecting rod is fixedly connected with the conical plug, the other end of the connecting rod extends into the grouting pipe body from the pipe orifice of the grouting pipe body, a chuck is fixedly arranged at the tail end of the connecting rod positioned in the grouting pipe body, the chuck is movably clamped in the pipe orifice, a plurality of first through holes are formed in the chuck, and each first through hole is communicated with the pipe orifice; and the pipe wall of the grouting pipe body is provided with a plurality of second through holes. The grouting pipe can solve the problems of low grouting speed and uneven slurry diffusion, and is simple in structure and convenient to manufacture.

The Chinese patent application CN111364442A discloses a grouting pipe, which comprises a conical terminal and a first grouting pipe, wherein one end of the first grouting pipe is fixedly connected with the conical terminal in a coaxial manner, a plurality of grout outlet holes are distributed on the pipe wall of the first grouting pipe, one end of the first grouting pipe, which is not connected with the conical terminal, is connected with a second grouting pipe which is coaxial with the first grouting pipe, and the diameter of the second grouting pipe is larger than that of the first grouting pipe. Through above-mentioned structure for soft soil grout also can be by the shutoff that second grout pipe was shutoff when getting into the back end operation, and then promotes the effect of grout.

However, the conventional grouting apparatus does not solve the following problems: the grouting direction of the side plate position is not concentrated easily by the grouting device which sprays to the periphery, and the grouting effect is poor; when a road shoulder or a green belt or an existing pipe ditch exists near the grouting hole, slurry can flow into the pipe ditch or soil to cause pollution and waste; too high grouting pressure can also cause impact damage to road shoulders or existing pipe ditches.

SUMMERY OF THE UTILITY MODEL

The utility model provides a directional cementer to the problem that prior art exists. The direction and the angle of the grout outlet are controlled, so that the grout outlet direction is more concentrated, and the grouting effect is improved; through the setting of keeping off the thick liquid piece, stop that thick liquid flows into near trench or soil, cushion grouting pressure, reduced extravagant and environmental pollution, avoid grouting pressure to the destruction that curb or existing trench caused.

In order to achieve the above object, the utility model adopts the following technical scheme:

a directional grouting device comprises a grouting steel pipe (1) and a grout blocking sheet (3); wherein, a grout outlet (2) is arranged on the grouting steel pipe (1).

Furthermore, in the directional grouting device, the connection mode of the grouting steel pipe (1) and the grout blocking sheet (3) is as follows: a plurality of fixing rings are welded on the grout blocking piece (3), and the grouting steel pipe (1) penetrates through the fixing rings; or the grouting steel pipe (1) is directly welded with the slurry blocking piece (3).

Furthermore, in the directional grouting device, the diameter of the grouting steel pipe (1) is 48-60 mm; the diameter of the grout outlet (2) is 5-7mm, and the direction and the angle of the grout outlet (2) are set according to actual grouting requirements; the grout outlets (2) are arranged along the length direction of the grouting steel pipe (1), the number of rows is 2-4, the interval distance between the upper grout outlet and the lower grout outlet (2) in each row is 10-20cm, and the adjacent row distance is 20-30 mm.

Furthermore, in the directional grouting device, the grout blocking sheet (3) is in the shape of an arc sheet, and the distance between the grout blocking sheet and the grouting steel pipe (1) is 30-40 mm; wherein, the pulp blocking sheet (3) is positioned right behind the direction of the pulp outlet (2).

Further, the longitudinal length of the directional grouting device is 0.8-1.2 m.

In actual operation, the directional grouting device is placed into a grouting hole (4) to perform grouting operation; wherein the grouting holes (4) are holes which are punched in advance for enabling the grout to enter the concrete void part.

Compared with the prior art, the utility model following beneficial effect has:

1. the utility model discloses cementer's slip casting steel pipe simple structure, the scene of being convenient for is makeed as required, can select the old and useless steel pipe, and is energy-concerving and environment-protective, very big reduction construction cost, it is extravagant to have reduced the material.

2. The utility model discloses the setting of fender thick liquid piece among the cementer can reduce thick liquid and flow into near curb, greenbelt or the existing trench of injected hole, has both reduced unnecessary waste of thick liquid, has prevented environmental pollution, plays a cushioning effect again, avoids grouting pressure too big to cause destruction to curb or existing trench.

3. The grout outlet with a specific angle and direction can enable grouting directions to be more concentrated, improve grouting effects and well solve the problem of concrete bottom plate void.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the connection mode of a grouting steel pipe and a grout stop sheet.

Reference numerals: 1-grouting steel pipe, 2-grout outlet, 3-grout blocking piece, 4-grouting hole and 5-fixing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in figures 1-3, the utility model discloses cementer is including slip casting steel pipe (1), grout outlet (2), fender thick liquid piece (3) and solid fixed ring (5). The grouting steel pipe (1) is a waste steel pipe with the diameter of 48mm and the length of 1.2 m; drilling 3 and discharging grout outlets (2) on a grouting steel pipe (1), wherein the diameter of each grout outlet (2) is 7mm, the grout outlets (2) are arranged along the length direction of the grouting steel pipe (1), the number of the rows is 2, the interval distance between each row of upper grout outlet and lower grout outlet (2) is 10cm, the adjacent row distance is 20mm, and the angle and the direction of each grout outlet (2) are set according to the actual concrete slab bottom void condition; and a plurality of fixing rings (5) are welded on the grout blocking sheets (3), the grouting steel pipe (1) penetrates through the fixing rings (5), and the grout blocking sheets (3) are positioned right behind the grout outlet (2) to obtain the required directional grouting device.

At the bottom of the concrete void board grout in-process, at present appointed slip casting position drill, grouting hole (4) promptly, then will the utility model discloses cementer inserts in this hole, and grouting hole (4) pore wall is pressed close to in fender thick liquid piece (3), opens the grouting pump of being connected with slip casting steel pipe (1), and the thick liquid passes through the grouting pump and inputs to slip casting steel pipe (1) in, during rethread grout outlet (2) flow in grouting hole (4) to carry out the slip casting operation. The grout blocking piece (3) can play a role in blocking and buffering grout, a partition is formed between the grout and a road shoulder, a green belt or an existing pipe ditch around the grouting hole (4), the grout is prevented from being lost, the high-speed and high-pressure grout is buffered, and the grout is prevented from causing impact damage to the nearby road shoulder, the green belt or the existing pipe ditch. The grout outlet (2) with a specific direction and an angle is matched with the grout blocking sheet (3), so that grout can be injected in a concentrated direction, the leakage amount is reduced, and the grouting effect of the bottom of the concrete void slab is improved.

Above technical characteristics constitute the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical characteristics according to actual need, satisfies the needs of different situation. It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A directional grouting device is characterized in that: the grouting device comprises a grouting steel pipe (1) and a grout blocking piece (3); wherein, a grout outlet (2) is arranged on the grouting steel pipe (1);

the grout blocking sheet (3) is arc sheet-shaped, and the distance between the grout blocking sheet and the grouting steel pipe (1) is 30-40 mm; the pulp blocking sheet (3) is positioned right behind the pulp outlet (2).

2. The directional grouting device according to claim 1, wherein the grouting steel pipe (1) and the grout stop sheet (3) are connected in the following way: a plurality of fixing rings are welded on the grout blocking sheet (3), and the grouting steel pipe (1) penetrates through the fixing rings; or the grouting steel pipe (1) is directly welded with the slurry blocking piece (3).

3. The directional grouting device according to claim 2, characterized in that: the diameter of the grouting steel pipe (1) is 48-60 mm; the diameter of the grout outlets (2) is 5-7mm, the grout outlets (2) are arranged along the length direction of the grouting steel pipe (1), the number of the rows is 2-4, the interval distance between the upper grout outlet and the lower grout outlet (2) in each row is 10-20cm, and the distance between adjacent rows is 20-30 mm.

4. The directional grouting apparatus according to claim 1, wherein: the longitudinal length of the grouting device is 0.8-1.2 m.