Underground structure pre-embedded grouting device

Abstract

The utility model discloses an underground structure pre-embedded grouting device, and belongs to the technical field of building construction. An underground structure pre-embedded grouting device comprises an underground structure, a pre-embedded grouting mechanism is installed on the inner side of the underground structure, and an exhaust assembly is arranged on the pre-embedded grouting mechanism; the exhaust assembly comprises a fixing pipe communicating with the outer side of the pre-buried grouting mechanism, and an end cover is installed at the upper end of the fixing pipe. By arranging the exhaust assembly, when a vibration motor is started, the vibration motor drives a vibration head through a rubber hose to vibrate slurry in an embedded pipe, bubbles in the slurry can be discharged, discharged gas enters the inner side of a fixed pipe, an exhaust pump is started, and gas in the fixed pipe is sucked in through a gas suction hole; and the sucked gas is discharged through the hose, so that bubbles in the slurry are effectively reduced, the filling property and compactness of the slurry are improved, gaps and non-uniformity do not exist in the slurry, and the grouting quality and strength are enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a pre-buried grouting device for an underground structure. Background Art

[0002] With the rapid development of the engineering industry, in order to improve the current traffic environment, underground passage projects are increasing. The current subway entrances and exits are connected to underground parking lots (underground shopping malls). Waterproofing between existing structures and newly added structures is a major difficulty in the engineering industry. In order to ensure the density between the newly added underground structure and the existing structure, in addition to the existing roughening, rebar planting, and adhesive waterproof strips, you can choose to pre-embed grouting pipes in advance and fill the construction joints with grouting after the structure is completed.

[0003] When the existing pre-buried grouting device is grouting, the slurry contains bubbles, and the bubbles will affect the fluidity and stability of the slurry, resulting in poor grouting effect, affecting the fullness and density of the slurry, and reducing the quality of grouting. At the same time, the bubbles will be trapped in the slurry during the grouting process, resulting in gaps and unevenness in the slurry, reducing the quality and strength of the grouting. Summary of the invention

[0004] The utility model aims to provide an underground structure pre-buried grouting device in view of the problems existing in the prior art.

[0005] To achieve the above object, the utility model adopts the following technical solution: comprising an underground structure, a pre-buried grouting mechanism is installed on the inner side of the underground structure, and an exhaust assembly is provided on the pre-buried grouting mechanism;

[0006] The exhaust assembly includes a fixed pipe connected to the outside of the embedded grouting mechanism, an end cover is installed on the upper end of the fixed pipe, a vibration motor and an exhaust pump are fixedly connected to the surface of the end cover, the output end of the vibration motor is fixedly connected to a rubber hose, the other end of the rubber hose away from the vibration motor is fixedly connected to a vibration head, and the vibration head is located on the inner side of the fixed pipe.

[0007] By adopting the above technical solution and setting up an exhaust component, the bubbles in the liquid in the embedded pipe can be vibrated and discharged, thereby improving the fullness and density of the slurry, eliminating gaps and unevenness in the slurry, and enhancing the quality and strength of the grouting.

[0008] Optionally, a water-swellable waterstop strip is installed on the inner side of the underground structure, the number of the water-swellable waterstop strips is two, and the water-swellable waterstop strips are arranged in double channels.

[0009] By adopting the above technical solution, the provision of water-swelling waterstop strips can effectively prevent groundwater or surface water from penetrating into the structure through the gaps, thereby protecting the stability and durability of the structure.

[0010] Optionally, the pre-buried grouting mechanism includes a pre-buried pipe installed inside the underground structure, both ends of the pre-buried pipe are connected to connecting pipes, the outside of the connecting pipe is connected to a grouting conduit, and a grouting hole is opened on the outside of the pre-buried pipe.

[0011] By adopting the above technical solution and setting up the pre-buried grouting mechanism, waterproofing can be performed between the existing structure and the newly added structure.

[0012] Optionally, a filter is fixedly installed on the outer side of the embedded pipe, and the filter covers the slurry discharge holes thereof.

[0013] By adopting the above technical solution and setting the filter, it is possible to prevent the impurities on the outside of the embedded pipe from clogging its slurry discharge holes.

[0014] Optionally, a sealing groove is provided at the upper end of the fixed pipe, and the sealing groove is annular. The fixed pipe is connected to the embedded pipe and is located in the middle of the embedded pipe.

[0015] By adopting the above technical solution and setting of the fixed pipe, the gas in the pre-buried pipe can be discharged.

[0016] Optionally, a perforation is provided on the surface of the end cover, and a sealing gasket is fixedly connected to the lower end of the end cover, and the sealing gasket is located on the inner side of the sealing groove.

[0017] By adopting the above technical solution, the cooperation between the sealing gasket and the sealing groove can improve the sealing effect between the cover plate and the fixed pipe.

[0018] Optionally, the exhaust end of the air pump is connected to an air suction seat, the air suction seat is cylindrical, and a side wall of the air suction seat is provided with an air suction hole. The air suction seat is connected to the exhaust end of the exhaust pump through a hose.

[0019] By adopting the above technical solution, the air suction hole and the hose cooperate with each other, so that the gas in the fixed pipe can be discharged.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] By setting up an exhaust component, when the vibration motor is started, the vibration motor drives the vibration head through the rubber hose to vibrate the slurry in the embedded pipe, so that the bubbles in the slurry can be discharged, and the discharged gas enters the inner side of the fixed pipe, and the exhaust pump is started, and the suction hole sucks the gas in the fixed pipe, and the sucked gas is discharged through the hose, thereby effectively reducing the bubbles in the slurry, improving the fullness and density of the slurry, eliminating gaps and unevenness in the slurry, and enhancing the quality and strength of the grouting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional structural diagram of the connection between the underground structure and the pre-buried grouting mechanism of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the embedded pipe of the utility model;

[0024] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the air suction seat of the utility model.

[0026] In the figure: 1. underground structure; 101. water-swelling waterstop strip; 2. embedded grouting mechanism; 21. embedded pipe; 211. filter screen; 22. connecting pipe; 23. grouting conduit; 24. slurry discharge hole; 3. exhaust assembly; 31. fixing pipe; 311. sealing groove; 32. end cover; 321. sealing gasket; 33. vibration motor; 34. exhaust pump; 35. rubber hose; 36. vibration head; 37. suction seat; 371. suction hole; 372. hose. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "middle", "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] like Figure 1 As shown in FIG. 4 , the specific scheme of the embodiment is as follows: comprising an underground structure 1, a water-swellable waterstop strip 101 is installed on the inner side of the underground structure 1, the number of the water-swellable waterstop strips 101 is two, and the water-swellable waterstop strips 101 are arranged in double lanes;

[0030] It should be noted that the water-swellable waterstop strip 101 can swell into a gel-like substance after contacting water, filling the gaps and holes between the pre-buried grouting device and the surrounding structure, forming a sealed barrier to prevent moisture penetration, and effectively preventing groundwater or surface water from penetrating into the structure through the gaps, thereby protecting the stability and durability of the structure. The water-swellable waterstop strip 101 is usually made of corrosion-resistant materials and can be used for a long time in a humid and moist environment, and is not easily corroded by moisture and chemicals.

[0031] A pre-buried grouting mechanism 2 is installed on the inner side of the underground structure 1, and the pre-buried grouting mechanism 2 includes a pre-buried pipe 21 installed on the inner side of the underground structure 1, and the pre-buried pipe 21 is distributed in the middle position of two water-swelling waterstop strips 101, and the pre-buried pipe 21 is distributed along the direction of the water-swelling waterstop strip 101, and the spacing between the water-swelling waterstop strip 10 and the pre-buried pipe 21 is 100mm-150mm. A filter screen 211 is fixedly installed on the outer side of the pre-buried pipe 21, and both ends of the pre-buried pipe 21 are connected with connecting pipes 22, and the connecting pipe 22 is "L"-shaped, and the outer side of the connecting pipe 22 is connected with a grouting conduit 23. A slurry discharge hole 24 is opened on the outer side of the pre-buried pipe 21, and the number of the slurry discharge holes 24 is several. The filter screen 211 covers the slurry discharge holes 24, and the filter screen 211 can prevent the impurities on the outer side of the pre-buried pipe 21 from clogging the slurry discharge holes 24, and the pre-buried grouting mechanism 2 is provided with an exhaust assembly 3.

[0032] The exhaust assembly 3 includes a fixed pipe 31 connected to the outside of the pre-buried grouting mechanism 2, a sealing groove 311 is provided at the upper end of the fixed pipe 31, and the sealing groove 311 is annular, the fixed pipe 31 is connected to the pre-buried pipe 21, and is located in the middle of the pre-buried pipe 21, an end cover 32 is installed at the upper end of the fixed pipe 31, the diameter of the end cover 32 is larger than the diameter of the fixed pipe 31, a perforation is provided on the surface of the end cover 32, and the perforation is located in the middle of the end cover 32, a sealing gasket 321 is fixedly connected to the lower end of the end cover 32, and the sealing gasket 321 is located on the inner side of the sealing groove 311, and the sealing gasket 321 cooperates with the sealing groove 311, so that the sealing performance between the fixed pipe 31 and the end cover 32 is strengthened;

[0033] The surface of the end cover 32 is fixedly connected with a vibration motor 33 and an exhaust pump 34, and the output end of the vibration motor 33 is fixedly connected with a rubber hose 35, and the rubber hose 35 is located on the inner side of the perforation;

[0034] The other end of the rubber hose 35 away from the vibration motor 33 is fixedly connected to the vibration head 36, and the outer side of the rubber hose 35 is movably connected to the suction seat 37 connected to the exhaust pump 34. The suction seat 37 is made of some lightweight plastic materials, and the suction seat 37 can float on the surface of the liquid. The suction seat 37 is cylindrical, and a through hole is opened at the center of the suction seat 37. The suction seat 37 slides on the outside of the rubber hose 35 through the through hole. The side wall of the suction seat 37 is opened with suction holes 371, and the number of suction holes 371 is several. The upper end of the suction seat 37 is connected with a hose 372, and the other end of the hose 372 is connected to the exhaust end of the exhaust pump 34.

[0035] The working principle of the above embodiment is:

[0036] The embedded pipe 21 is embedded in the gap to ensure that the embedded pipe 21 is firmly fixed in the gap. The grouting conduit 23 is connected to the embedded pipe 21 through the connecting pipe 22 to ensure that the connection is firmly sealed to avoid slurry leakage. At the same time, the fixed pipe 31 is installed synchronously. After the installation is completed, the end cover 32 and the fixed pipe 31 are docked and sealed so that the vibration head 36 and the suction seat 37 are located on the inner side of the embedded pipe 21 and the fixed pipe 31. Slurry is injected into the grouting conduit 23 through the grouting equipment, and the grouting pressure and flow rate are controlled so that the slurry fills the gap smoothly. The vibration motor 33 and the exhaust pump 34 are started. The vibration motor 33 drives the vibration head 36 to vibrate through the rubber hose 35 to vibrate the bubbles in the slurry. The discharged bubbles are sucked in through the suction holes 371 on the suction seat 37, and then transported to the exhaust pump 34 through the hose 372, and discharged through the exhaust pump 34. After the slurry fully fills the gap, the grouting operation is stopped, and the slurry is solidified and hardened to form a solid sealing layer.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pre-buried grouting device for an underground structure, characterized in that: It comprises an underground structure (1), a pre-buried grouting mechanism (2) is installed on the inner side of the underground structure (1), and an exhaust assembly (3) is provided on the pre-buried grouting mechanism (2); The exhaust assembly (3) comprises a fixed pipe (31) connected to the outside of the pre-buried grouting mechanism (2); an end cover (32) is mounted on the upper end of the fixed pipe (31); a vibration motor (33) and an exhaust pump (34) are fixedly connected to the surface of the end cover (32); a rubber hose (35) is fixedly connected to the output end of the vibration motor (33); the other end of the rubber hose (35) away from the vibration motor (33) is fixedly connected to a vibration head (36); and the vibration head (36) is located on the inner side of the fixed pipe (31).

2. The pre-buried grouting device for an underground structure (1) according to claim 1, characterized in that: A water-swellable waterstop strip (101) is installed on the inner side of the underground structure (1), the number of the water-swellable waterstop strips (101) is two, and the water-swellable waterstop strips (101) are arranged in double lanes.

3. The pre-buried grouting device for an underground structure (1) according to claim 1, characterized in that: The pre-buried grouting mechanism (2) comprises a pre-buried pipe (21) installed inside the underground structure (1), both ends of the pre-buried pipe (21) are connected to connecting pipes (22), the outside of the connecting pipe (22) is connected to a grouting conduit (23), and a grouting hole (24) is provided on the outside of the pre-buried pipe (21).

4. The pre-buried grouting device for an underground structure (1) according to claim 3, characterized in that: A filter screen (211) is fixedly mounted on the outer side of the embedded pipe (21), and the filter screen (211) covers the slurry discharge hole (24) thereof.

5. The pre-buried grouting device for an underground structure (1) according to claim 3, characterized in that: A sealing groove (311) is provided at the upper end of the fixed tube (31), and the sealing groove (311) is annular. The fixed tube (31) is in communication with the embedded tube (21) and is located in the middle of the embedded tube (21).

6. The pre-buried grouting device for an underground structure (1) according to claim 5, characterized in that: A perforation is provided on the surface of the end cover (32), and a sealing gasket (321) is fixedly connected to the lower end of the end cover (32), wherein the sealing gasket (321) is located on the inner side of the sealing groove (311).

7. The pre-buried grouting device for an underground structure (1) according to claim 1, characterized in that: The exhaust end of the air pump (34) is connected to an air suction seat (37). The air suction seat (37) is cylindrical. A side wall of the air suction seat (37) is provided with an air suction hole (371). The air suction seat (37) is connected to the exhaust end of the exhaust pump (34) via a hose (372).

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