Subway structure leakage water treatment device

Abstract

A subway structure leakage water treatment device comprises a base plate, and at least one grouting anchoring device is arranged on the base plate. The grouting anchoring device comprises a protection pipe, the front end of the protection pipe is fixedly connected to the base plate, a plurality of liquid outlet holes are evenly formed in the pipe wall of the protection pipe, and an inner pipe is arranged in the protection pipe in a penetrating and sliding mode. An end is arranged at the rear end of the inner pipe, a sliding column is slidably connected to the interior of the rear end of the inner pipe, a first spring is fixedly connected between the sliding column and the end, through grooves are formed in the two sides of the rear end of the inner pipe, two side rods are rotatably connected to the sliding column and correspond to the two through grooves in a one-to-one mode, and torsional springs are arranged on rotating shafts of the side rods. The two side rods rotate out of the through grooves in the two sides under the action of the corresponding torsional springs. Grouting can be conducted on the upstream face and the downstream face of the rubber waterstop, the compaction effect of the cross section of the rubber waterstop is matched, and therefore leakage treatment is more thorough.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel leakage disease treatment, and in particular to a subway structure leakage treatment device. Background Art

[0002] Subway tunnels are generally assembled from prefabricated concrete segments, and the waterproof mechanism between the segments is completed through the mortise and tenon structure between the segments and the elastic rubber waterstop strips and sealing pads near the water surface. When the tunnel undergoes physical changes such as convergence deformation and settlement, or the structure is misaligned when the segments are assembled, the rubber waterstop strips will fail.

[0003] Patent announcement number CN113356881B is a deep grouting method for treating tunnel leakage problems. It discloses that slurry is injected through a grouting nozzle, and the slurry flows along the groove for installing the rubber waterstop and fills the gap between the rubber waterstop and the groove. However, the patent has the following problems: on the one hand, the slurry is located on the back surface of the rubber waterstop, and the pressurized seepage water spraying will cause the injected slurry to be lost. On the other hand, the leakage that keeps seeping will dilute the concentration of the grouting liquid, making it difficult to control the curing strength. Although the front surface of the rubber waterstop is eroded by water, there are also leakage points that are not connected. Since the gap is not completely connected, the slurry filling can only partially improve the leakage, and new leakage will occur later. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and thereby provide a subway structure leakage control device. The present invention can inject grout on the water-facing and water-receiving surfaces of the rubber waterstop, combined with the compaction effect of the cross-section of the rubber waterstop, so that the leakage control is more thorough.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: a subway structure leakage treatment device, comprising a base plate, on which at least one grouting anchor device is arranged; the grouting anchor device comprises a protective pipe, the front end of which is fixedly connected to the base plate, a plurality of liquid outlet holes are evenly arranged on the pipe wall of the protective pipe, and an inner pipe is slidably arranged in the protective pipe; The rear end of the inner tube is provided with an end head, and a sliding column is slidably connected inside the rear end of the inner tube. A first spring is fixedly connected between the sliding column and the end head. Through grooves are provided on both sides of the rear end of the inner tube. Two side rods are rotatably connected to the sliding column, and the two side rods correspond to the two through grooves one by one. A torsion spring is provided on the rotating shaft of the side rod, and the two side rods are rotated out of the through grooves on both sides under the action of the corresponding torsion springs.

[0006] Based on the above, the grouting anchoring device also includes a horizontal plate, which is fixedly connected to the base plate, and a slide groove is arranged on the upper edge of the horizontal plate in the front-to-back direction, a slider is slidably connected in the slide groove, a vertical plate is fixedly connected to the slider, a grouting sleeve is rotatably connected to the vertical plate, the front end of the inner tube is detachably connected to the grouting sleeve, and a driving mechanism for driving the slider to move is arranged in the slide groove.

[0007] Based on the above, a sealing rubber ring is sleeved on the inner tube, and the sealing rubber ring is located between the protective tube and the two through grooves. A metal ring is embedded in the sealing rubber ring, and a limiting hole is provided on the inner hole wall of the metal ring. A limiting block is slidably connected in the limiting hole, and a second spring is fixedly connected between the limiting block and the bottom of the limiting hole. The part of the limiting block extending out of the limiting hole is a locking tongue structure and its rear side is an inclined surface. A protruding ring is provided on the outer wall of the inner tube, and the protruding ring is located inside the sealing rubber ring and is arranged corresponding to the limiting block in front and behind.

[0008] Based on the above, a steel wire is arranged in the inner tube, a built-in motor is arranged inside the slider, a disc is fixedly connected to the main shaft of the built-in motor, a fastening column is rotatably connected to the upper eccentric part of the disc, and the front end of the steel wire is fixedly connected to the fastening column; A reciprocating sawtooth structure is slidingly arranged on the outer side of the side rod, one end of the reciprocating sawtooth structure is fixedly connected to the rear end of the steel wire, and the reciprocating sawtooth structure is connected to the side rod through a third spring. The reciprocating sawtooth structure can perform reciprocating sawing motion under the cooperation of the third spring and the steel wire rope.

[0009] Based on the above, a return groove is provided on the side rod, a return block slidably provided in the return groove is fixedly connected to the reciprocating sawtooth structure, and two ends of the third spring are respectively fixedly connected to the return block and one side inner wall of the return groove.

[0010] Based on the above, the reciprocating sawtooth structure is a rope saw structure or an alloy steel bar with saw teeth.

[0011] Based on the above, the driving mechanism is an electric push rod, a pneumatic push rod or a hydraulic push rod.

[0012] Based on the above, the cross section of the side bar is V-shaped and the tip is located on the inner side of the side bar.

[0013] Based on the above, spring buffer columns are respectively arranged at the four corners of the rear side surface of the base plate.

[0014] Based on the above, a mounting handle is fixedly connected to one side of the horizontal plate located in the middle of the base plate.

[0015] Compared with the prior art, the present invention has outstanding substantive features and significant progress. Specifically, when the present invention is used, a rubber water stop is drilled in the gap of the tunnel leakage point to form a pre-drilled hole, the protective tube is pressed against the rubber water stop, and the rear end of the inner tube passes through the pre-drilled hole, and the two side rods are respectively retracted into the corresponding two through grooves and are unfolded by the torsion spring after passing through the pre-drilled hole. The distance between the far ends of the two side rods after unfolding is greater than the diameter of the pre-drilled hole, and the driving mechanism drives the slider to move forward away from the tunnel segment, so that the inner tube is pulled outward, and the two side rods are unfolded into a "one" shape. Finally, the water-facing surface of the rubber waterstop is embedded in the gap of the rubber waterstop, and a concave cavity is formed by squeezing the water-facing surface, thereby forming a strip grouting area. The slurry sprayed from the inner tube is convenient for filling and diffusion to form a cementing body, and the water-receiving surface of the rubber waterstop is squeezed more tightly, further compensating for the leakage of the gap formed by the misalignment of the rubber waterstop. At the same time, the inner tube is grouted on the water-facing surface of the rubber waterstop, and the protective tube is grouted through each liquid outlet hole on the water-receiving surface of the rubber waterstop, which cooperates with the compaction effect of the cross-section of the rubber waterstop, so that the leakage control is more thorough.

[0016] Furthermore, when the inner tube of the present invention is pulled outward, the protruding ring on the outer wall of the inner tube squeezes and pushes the limit block, and the limit block retracts into the limit hole. After the protruding ring passes over the limit block, the second spring pushes the limit block out, and the front plane of the limit block forms a limit for the protruding ring, and cooperates with the elasticity of the rubber waterstop to form an anchoring structure, thereby increasing the strength of the plugging structure to prevent the outer end of the inner tube from being cut off. The tightening force of the slurry solidified to wrap the inner tube cannot offset the force of the rubber waterstop extruding the side rod, thereby avoiding failure of the plugging structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 yes Figure 1 A partial enlarged view of point E in the figure.

[0019] Figure 3 It is a schematic diagram of the state of the present invention applied to the joints of tunnel segments.

[0020] Figure 4 It is a schematic diagram of the internal structure of the tunnel segment joint when the present invention is applied.

[0021] Figure 5 It is a schematic diagram of the state after the inner tube of the present invention penetrates into the pre-drilled hole of the rubber water stop.

[0022] Figure 6 It is a schematic diagram of grouting on the water-facing surface of a rubber waterstop according to the present invention.

[0023] Figure 7 yes Figure 6 AA section view in.

[0024] In the figure: 1. Base plate; 11. Elastic buffer column; 2. Horizontal plate; 25. Protective tube; 21. Slide groove; 22. Sliding block; 211. Electric push rod; 23. Vertical plate; 24. Grouting sleeve; 251. Liquid outlet; 3. Inner tube; 31. Sliding column; 32. First spring; 33. Through groove; 34. Side rod; 35. Steel wire; 4. Disc; 41. Fastening column; 5. Sealing rubber ring; 51. Metal ring; 52. Limiting hole; 53. Limiting block; 54. Protruding ring; 55. Second spring; 6. Reciprocating serrated structure; 61. Return groove; 62. Return block; 63. Third spring; 7. Tunnel segment; 10. Rubber water stop; 20. Adhesive body; 30. Mounting handle. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further described in detail below through specific implementation methods.

[0026] Example 1 like Figure 1-Figure 7 As shown, a subway structure water leakage control device comprises a base plate 1, elastic buffer columns 11 are respectively arranged at the four corners of the rear side of the base plate 1, the elastic buffer columns 11 are used for buffering the contact with the tunnel pipe segment 7, at least one grouting anchor device is arranged on the base plate, and the grouting anchor device can be added according to the scope of the water leakage, and the grouting anchor device comprises a transverse plate 2 and a protective pipe 25, the transverse plate 2 is fixedly connected to the base plate 1, a slide groove 21 is arranged on the upper side of the transverse plate 2 along the front-back direction, a slider 22 is slidably connected in the slide groove 21, an electric push rod 211 is fixedly connected to one end of the slide groove 21, the telescopic end of the electric push rod 211 is fixedly connected to the slider 22, and the electric push rod 211 is telescopic so that the slider 22 can slide in the slide groove 21. The electric push rod 211 can also be replaced by a driving mechanism such as a pneumatic push rod or a hydraulic push rod in other embodiments; the upper side of the slider 22 is fixedly connected to a vertical plate 23, and a grouting sleeve 24 is rotatably connected to the vertical plate 23. The front end of the protective tube 25 is fixedly connected to the base plate 1, and liquid outlet holes 251 are evenly arranged on the tube wall of the protective tube 25. The inner tube 3 is slidably connected through the protective tube 25. The front end of the inner tube 3 is detachably connected to the grouting sleeve 24, such as by threaded connection or snap connection. After grouting, the inner tube 3 is removed, and the inner tube 3 remains in the gap of the tunnel segment 7. The interior of the inner tube 3 is filled with solidified slurry, and the base plate 1, the protective tube 25, the horizontal plate 2 and the attached structure on the horizontal plate 2 can be removed; The rear end of the inner tube 3 is provided with an end head, and a sliding column 31 is slidably connected inside the rear end of the inner tube 3, and a first spring 32 is fixedly connected between the sliding column 31 and the end head. Through grooves 33 are provided on both sides of the rear end of the inner tube 3, and two side rods 34 are rotatably connected to the sliding column 31. A torsion spring is provided on the rotating shaft of the side rod 34, and the side rod 34 is rotated out of the through groove 33 under the action of the torsion spring. The cross section of the side rod 34 is a "V"-shaped structure and the tip is located on the inner side of the side rod 34, which is easy to be embedded in the gap on the water-facing surface of the rubber waterstop 10; A mounting handle 30 is fixedly connected to one side of the horizontal plate 2 located in the middle of the base plate 1. The mounting handle 30 is used to install the device on a rotating telescopic arm in the prior art. The rotating telescopic arm controls rotation or extension to adapt to leakage control in different directions of the tunnel.

[0027] When implementing Example 1, first drill through the rubber water stop 10 in the gap of the tunnel leakage point to form a pre-drilled hole, so that the protective pipe 25 of the grouting anchor device abuts against the rubber water stop 10, and the rear end of the inner tube 3 passes through the pre-drilled hole, and the two side rods 34 are respectively retracted into the corresponding two through grooves 33 and are expanded by the torsion spring after passing through the pre-drilled hole. The distance between the far ends of the two side rods 34 after expansion is greater than the diameter of the pre-drilled hole, such as Figures 5 to 7 As shown, the electric push rod 211 pushes the slider 22 forward and away from the tunnel segment 7, so that the inner tube 3 is pulled outward. After the two side rods 34 are unfolded into an "I" shape, the water-facing surface of the rubber waterstop 10 is embedded in the gap of the rubber waterstop 10, and a concave cavity is formed by squeezing the water-facing surface to form a strip grouting area. The slurry sprayed from the inner tube 3 is easy to fill and diffuse to form a cementing body 20, and the back water surface of the rubber waterstop 10 is squeezed more tightly, further compensating for the leakage of the gap formed by the misalignment of the two rubber waterstops 10. At the same time, the inner tube 3 is grouted on the water-facing surface of the rubber waterstop 10, and the protective tube 25 is grouted through each liquid outlet hole on the back water surface of the rubber waterstop 10, cooperating with the cross-section of the two rubber waterstops 10 (as shown in FIG. Figure 7 The compaction effect is achieved as shown in the figure, so that the leakage control is more thorough.

[0028] Example 2 On the basis of Example 1, Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, a sealing rubber ring 5 located between the protective tube and the two through grooves is sleeved on the inner tube 3. The sealing rubber ring 5 is tightly fitted on the back water surface of the pre-drilled hole of the rubber waterstop 10 through the protective tube 25. A metal ring 51 is embedded in the sealing rubber ring 5. The inner hole wall of the metal ring 51 is provided with a limiting hole 52. A limiting block 53 is slidably connected in the limiting hole 52. A second spring 55 is fixedly connected between the limiting block 53 and the bottom of the limiting hole 52. The part of the limiting block 53 extending out of the limiting hole is a locking tongue structure and its rear side is an inclined surface. A protruding ring 54 is provided on the outer wall of the inner tube 3. The protruding ring 54 is located inside the sealing rubber ring 5 and is arranged corresponding to the limiting block 53 in front and behind; initially, the protruding ring 54 is located on the rear side of the limiting block 53.

[0029] When Example 2 is implemented, when the inner tube is pulled outward, the protruding ring 54 on the outer wall of the inner tube 3 squeezes and pushes the limit block 53, and the limit block 53 retracts into the limit hole 52. After the protruding ring 54 passes over the limit block 53, the second spring pushes the limit block 53 out, and the front plane of the limit block 53 forms a limit for the protruding ring 54, and cooperates with the elasticity of the rubber waterstop 10 to form an anchoring structure, thereby increasing the strength of the plugging structure to prevent the outer end of the inner tube 3 from being cut off. The tightening force of the slurry solidification wrapping the inner tube 3 alone cannot offset the force of the rubber waterstop 10 squeezing out the side rod 34, thereby avoiding failure of the plugging structure.

[0030] Example 3 On the basis of Example 1 and Example 2, Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, a steel wire 35 is provided in the inner tube 3, a built-in motor is provided inside the slider 22, the main shaft of the built-in motor is fixedly connected to the disc 4, a fastening column 41 is rotatably connected to the upper eccentric part of the disc 4, and the front end of the steel wire 35 is fixedly connected to the fastening column 41 by a screw; A reciprocating sawtooth structure 6 is arranged on the outer side of the side rod 34, one end of the reciprocating sawtooth structure 6 is fixedly connected to the rear end of the steel wire 35, a return groove 61 is arranged on the side rod 34, a return block 62 slidably arranged in the return groove 61 is fixedly connected to the reciprocating sawtooth structure 6, a third spring 63 is fixedly connected between the return block 62 and an inner wall of one side of the return groove 61, the reciprocating sawtooth structure 6 performs a reciprocating sawing motion under the pulling of the steel wire rope 35 and in coordination with the extension and contraction of the third spring 63, thereby forming a sawing groove on the water-facing surface of the rubber waterstop 10, and the reciprocating sawtooth structure 6 is a rope saw structure or an alloy steel bar with saw teeth.

[0031] When implementing Example 3, the main shaft of the built-in motor drives the disc 4 to rotate continuously, and the disc 4 pulls the wire rope 35 back and forth through the fastening column 41, thereby causing the reciprocating sawtooth structure 6 to perform a reciprocating sawing motion. Then, while the side rods 34 rotate and unfold, the reciprocating sawtooth structure 6 saws the mortar (formed by post-grouting of the shield tunnel segment 7) on the outside that blocks the unfolding of the side rods 34. The mortar formed by post-grouting of the shield tunnel segment 7 is easy to cut into grooves after being eroded by water; the electric push rod 211 pushes the slider 22 forward and away from the tunnel segment 7, so that the inner tube 3 is gradually and slowly pulled outward, and the side rods 34 are slowly unfolded. At the same time, the wire 35 reciprocates back and forth relative to the inner tube 3 under the action of the disc 4, and the reciprocating sawtooth structure 6 saws the mortar, and finally all the side rods 34 are unfolded to form Figure 6 In the “I”-shaped structure shown, a through grouting area is formed on the water-facing surface of the rubber waterstop 10, so that an integral bonding body 20 is formed on the water-facing surface of the rubber waterstop 10, thereby improving the grouting plugging strength and plugging quality.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A subway structure water leakage treatment device, characterized by: It includes a base plate, on which at least one grouting anchoring device is arranged; the grouting anchoring device includes a protective tube, the front end of which is fixedly connected to the base plate, a plurality of liquid outlet holes are evenly arranged on the tube wall of the protective tube, and an inner tube is slidably arranged in the protective tube; The rear end of the inner tube is provided with an end head, and a sliding column is slidably connected inside the rear end of the inner tube. A first spring is fixedly connected between the sliding column and the end head. Through grooves are provided on both sides of the rear end of the inner tube. Two side rods are rotatably connected to the sliding column, and the two side rods correspond to the two through grooves one by one. A torsion spring is provided on the rotating shaft of the side rod, and the two side rods are rotated out of the through grooves on both sides under the action of the corresponding torsion springs.

2. A subway structure water leakage treatment device according to claim 1, characterized in that: The grouting anchoring device also includes a transverse plate, which is fixedly connected to the base plate, a slide groove is arranged on the upper edge of the transverse plate in the front-to-back direction, a slider is slidably connected in the slide groove, a vertical plate is fixedly connected to the slider, a grouting sleeve is rotatably connected to the vertical plate, the front end of the inner tube is detachably connected to the grouting sleeve, and a driving mechanism for driving the slider to move is arranged in the slide groove.

3. A subway structure water leakage treatment device according to claim 2, characterized in that: A sealing rubber ring is sleeved on the inner tube, and the sealing rubber ring is located between the protective tube and the two through grooves. A metal ring is embedded in the sealing rubber ring, and a limiting hole is provided on the inner hole wall of the metal ring. A limiting block is slidably connected in the limiting hole, and a second spring is fixedly connected between the limiting block and the bottom of the limiting hole. The part of the limiting block extending out of the limiting hole is a locking tongue structure and its rear side is an inclined surface. A protruding ring is provided on the outer wall of the inner tube, and the protruding ring is located inside the sealing rubber ring and is arranged corresponding to the limiting block in front and behind.

4. A subway structure water leakage treatment device according to claim 3, characterized in that: A steel wire is arranged in the inner tube, a built-in motor is arranged inside the slider, a disc is fixedly connected to the main shaft of the built-in motor, a fastening column is rotatably connected to the upper eccentric part of the disc, and the front end of the steel wire is fixedly connected to the fastening column; A reciprocating sawtooth structure is slidingly arranged on the outer side of the side rod, one end of the reciprocating sawtooth structure is fixedly connected to the rear end of the steel wire, and the reciprocating sawtooth structure is connected to the side rod through a third spring. The reciprocating sawtooth structure can perform reciprocating sawing motion under the cooperation of the third spring and the steel wire rope.

5. A subway structure water leakage treatment device according to claim 4, characterized in that: A return groove is arranged on the side rod, a return block slidably arranged in the return groove is fixedly connected to the reciprocating sawtooth structure, and two ends of the third spring are respectively fixedly connected to the return block and one side inner wall of the return groove.

6. A subway structure water leakage treatment device according to claim 5, characterized in that: The reciprocating sawtooth structure is a rope saw structure or an alloy steel bar with saw teeth.

7. A subway structure water leakage treatment device according to any one of claims 2 to 6, characterized in that: The driving mechanism is an electric push rod, a pneumatic push rod or a hydraulic push rod.

8. A subway structure water leakage treatment device according to claim 7, characterized in that: The cross section of the side rod is V-shaped and the tip is located on the inner side of the side rod.

9. A subway structure water leakage treatment device according to claim 8, characterized in that: Spring buffer columns are respectively arranged at the four corners of the rear side surface of the base plate.

10. A subway structure water leakage treatment device according to claim 9, characterized in that: A mounting handle is fixedly connected to one side of the horizontal plate located in the middle of the base plate.

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