Basement side wall leakage curtain grouting repairing structure

Abstract

The utility model relates to the field of basement side wall waterproofing, in particular to a basement side wall leakage curtain grouting repairing structure which comprises a wall body, a grouting hole formed in the wall body and a sealing feeding piece inserted into the grouting hole. The sealing feeding piece comprises a circular truncated cone-shaped section in the middle, a conical section at the two ends and a cylindrical section, and a grout conveying channel is formed in the sealing feeding piece and communicates with the waterproof grouting layer through a grout outlet hole. The circular-truncated-cone-shaped section is provided with a limiting piece and comprises a limiting pin, a spring and a moving roller driven by threads, the limiting pin is pushed by rotating a threaded rod to abut against the inner wall of the grouting hole, sealing and thrust resistance stability is enhanced, and a rubber blocking ring is arranged at the joint of the conical section and the circular-truncated-cone-shaped section to prevent grout from flowing back. By means of the limiting structure and the sealing design, the problems that during grouting, a feeding piece is prone to loosening, and grout leaks out are solved, and the grouting compactness and the repairing effect are improved.

Description

Technical Field

[0001] This utility model relates to the field of waterproofing basement side walls, specifically a curtain grouting repair structure for basement side wall leakage. Background Technology

[0002] Basement sidewall leakage is a common quality problem in construction projects, mainly caused by structural defects, waterproofing failure, and groundwater pressure. Analysis of leakage causes: (1) Structural defects

[0003] Concrete cracks: caused by uneven pouring, insufficient curing, and shrinkage stress.

[0004] Construction cold joints: Improper treatment of joints during layered pouring.

[0005] Honeycombing and voids: Insufficient compaction during vibration, resulting in gaps in the concrete.

[0006] (2) Waterproofing layer failure

[0007] Aging of waterproofing materials: Cracks or peeling of flexible waterproofing layers (such as SBS membranes and polyurethane coatings).

[0008] Inadequate overlap: The joints of the waterproof membrane or coating are not properly sealed.

[0009] Damage: Backfill soil or subsequent construction work damaged the waterproof layer.

[0010] (3) External water pressure influence

[0011] High groundwater level: Rainy season or poor drainage leads to increased hydrostatic pressure.

[0012] Drainage system failure: blind drains and sump pits are blocked, preventing effective water drainage.

[0013] (3) Other factors

[0014] Leakage at post-pouring strips and construction joints: Improper installation or aging of waterstops (steel / rubber).

[0015] Leakage through wall pipes: The sleeve is not properly sealed (such as around cables and water pipes).

[0016] Regardless of the cause of the leakage, the most common repair method is grouting. Existing patent authorization number CN221972497U discloses a curtain grouting repair structure for basement sidewall leakage. This structure includes a wall with multiple horizontally penetrating holes along the vertical direction. Each of these holes has a feeding component horizontally inserted into it. A seepage surface is provided on the outer side of the wall. The feeding component is used to transport grout to form a waterproof grout layer between the wall and the seepage surface. The feeding component includes a guide component, a keel component, and a sealing component. The guide component includes a guide cylinder, which is horizontally inserted into the through holes of the wall. A hole frame is fixed to the end of the guide cylinder near the seepage surface, and a baffle plate is provided at the end of the guide cylinder near the seepage surface. Although the above-mentioned repair structure reduces damage to the wall during use, its sealing ability is limited during grouting. Moreover, after grouting into the grouting hole, it is easy to generate an outward pushing force on the feeding component, causing the grout to flow out and affecting the stability of the feeding component.

[0017] In response, the present invention provides a solution to the above problems. Utility Model Content

[0018] The purpose of this utility model is to provide a curtain grouting repair structure for basement sidewall leakage, so as to solve the problems mentioned in the background art.

[0019] To achieve the above objectives, this utility model provides the following technical solution:

[0020] A curtain grouting repair structure for basement sidewall leakage includes a wall with a seepage surface distributed on its outer side. A waterproof grouting layer to be repaired is formed between the seepage surface and the wall. Multiple grouting holes are longitudinally spaced inside the wall, penetrating into the waterproof grouting layer. Grout is injected into the waterproof grouting layer through these holes for filling. A sealing feeder is inserted into each grouting hole under pressure. The sealing feeder is used for grout transfer and sealing the inside and outside of the grouting hole. The inner end of the sealing feeder is connected to the inside of the waterproof grouting layer, and the outer end is detachably connected to a grout pipe. That is, when grouting repair is performed inside the waterproof grouting layer, a certain number of evenly distributed grouting holes are opened in the damaged area. Then, the grouting holes and the sealing feeder cooperate to simultaneously grout multiple locations inside the waterproof grouting layer. This ensures uniform and sufficient grouting while reducing the damaged area of ​​the wall surface. At the same time, the high-strength positioning and sealing ability between the sealing feeder and the grouting holes ensures the stability of the grouting.

[0021] The sealing feeder includes a central frustum-shaped section, and conical and cylindrical sections connected to both ends of the frustum-shaped section. A slurry transmission channel is formed at the center of each of the conical, frustum-shaped, and cylindrical sections. A slurry connecting valve is connected outwards to the cylindrical section of the slurry transmission channel, and this valve is connected to a slurry pipe. The conical section has evenly distributed slurry outlet holes on its outer wall. The slurry is diffused into the waterproof grouting layer through the slurry connecting valve and the slurry transmission channel, filling the grouting layer. Simultaneously, the shape of the sealing feeder directs the slurry towards the grouting holes. During internal insertion, as the depth increases, the frustum-shaped segment and the cylindrical segment gradually come into contact with the inner wall of the grouting hole. When the conical segment moves into the interior of the waterproof grouting layer, the outer part of the cylindrical segment aligns with the outside of the grouting hole, and the cylindrical segment makes full contact with the interior of the grouting hole, thus ensuring a seal between the inside and outside of the grouting hole. Multiple sets of limiting components are evenly spaced along the annular ring on the frustum-shaped segment. The limiting components move radially and come into contact with the inner wall of the grouting hole, increasing the limiting force between the frustum-shaped segment and the grouting hole. This ensures that when the grout is filled inside the waterproof grouting layer, the sealing feeder will not fall outward when it is subjected to an outward thrust.

[0022] Compared with the prior art, the beneficial effects of this utility model are: through the interference fit between the frustum-shaped section and the grouting hole and the double sealing of the rubber blocking ring, the leakage of grout under grouting pressure is effectively prevented.

[0023] The limiting pin, driven by the threaded rod, presses against the inner wall of the grouting hole to counteract the reverse thrust of grouting and prevent the feeding part from coming out.

[0024] By using a multi-hole grouting system and synchronous grouting design, the waterproof layer is ensured to be densely filled, reducing blind spots.

[0025] The threaded drive limit structure is easy to operate and allows for repeated adjustment of tightness to adapt to different hole diameters.

[0026] By quickly inserting and fixing the sealed feeding parts, damage to the wall is reduced and the repair cycle is shortened. Attached Figure Description

[0027] Figure 1 This is a partial schematic diagram of a curtain grouting repair structure for basement sidewall leakage.

[0028] Figure 2 This is a schematic diagram of a sealing material feeding component in a curtain grouting repair structure for basement sidewall leakage.

[0029] Figure 3 for Figure 1 A magnified structural diagram of A in the middle.

[0030] Figure 4 for Figure 3 A magnified structural diagram of B in the diagram.

[0031] Among them: wall 10, seepage surface 11, waterproof grouting layer 12, grouting hole 13, sealing feeder 14, frustum-shaped section 15, conical section 16, grout outlet hole 17, grout connecting valve 18, cylindrical section 19, threaded hole 20, threaded rod 21, handle 22, rubber blocking ring 23, limit pin hole 24, limit pin 25, spring 26, spring plate 27, metal end 28, inclined working surface 29. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Please see Figures 1-4A curtain grouting repair structure for basement sidewall leakage includes a wall 10, with seepage surfaces 11 distributed on the outer side of the wall 10. A waterproof grouting layer 12 to be repaired is formed between the seepage surfaces 11 and the wall 10. Multiple grouting holes 13 are longitudinally spaced inside the wall 10, penetrating into the waterproof grouting layer 12. Repair grout is injected into the waterproof grouting layer 12 through the grouting holes 13 for filling. A sealing feeder 14 is inserted into the grouting hole 13 under pressure. The sealing feeder 14 is used for grout transfer and sealing of the inside and outside of the grouting hole 13. The inner end of the sealing feeder 14 is connected to the interior of the waterproof grouting layer 12, and the outer end is detachably connected to a grout pipe. That is, when grouting repair is carried out inside the waterproof grouting layer 12, a certain number of evenly distributed grouting holes 13 are opened in the damaged area. Then, the grouting holes 13 cooperate with the sealing feeder 14 to simultaneously grout multiple locations inside the waterproof grouting layer 12. This ensures that the grouting is uniform and sufficient, while also reducing the damaged area of ​​the wall surface of the wall 10. At the same time, the high-strength positioning and sealing ability between the sealing feeder 14 and the grouting holes 13 ensures the stability of the grouting.

[0037] The sealing feeder 14 includes a central frustum-shaped section 15, and conical sections 16 and cylindrical sections 19 connected to both ends of the frustum-shaped section 15. A slurry transmission channel is formed at the center of the conical section 16, the frustum-shaped section 15, and the cylindrical section 19. A slurry connecting valve 18 is connected outwards to the section facing the cylindrical section 19, and the slurry connecting valve 18 is connected to a slurry pipe. A uniformly distributed slurry outlet hole 17 is connected to the end facing the conical section 16, located on the outer wall of the conical section 16. The slurry is diffused into the waterproof grouting layer 12 through the slurry connecting valve 18 and the slurry transmission channel via the slurry outlet hole 17 for filling. Simultaneously, the shape of the sealing feeder 14 guides the slurry towards the grouting layer. When the grouting hole 13 is inserted, as the depth increases, the frustum-shaped section 15 and the cylindrical section 19 gradually come into contact with the inner wall of the grouting hole 13. When the conical section 16 moves into the interior of the waterproof grouting layer 12, the outer part of the cylindrical section 19 aligns with the outside of the grouting hole 13, and the cylindrical section 19 is in full contact with the interior of the grouting hole 13, thereby ensuring the sealing of the inside and outside of the grouting hole 13. Multiple sets of limiting members are provided at equal intervals along the annular ring on the frustum-shaped section 15. The limiting members move radially and come into contact with the inner wall of the grouting hole 13, increasing the limiting force between the frustum-shaped section 15 and the grouting hole 13, thereby ensuring that when the grout is filled into the interior of the waterproof grouting layer 12, the sealing feeder 14 will not fall outward when it is subjected to an outward pushing force.

[0038] The limiting component includes multiple equally spaced axially distributed limiting pin holes 24 on the frustum-shaped section 15. The limiting pin holes 24 are radially opened, and a drive chamber is formed inside the frustum-shaped section 15 corresponding to the inner side of the limiting pin holes 24. A limiting pin 25 is telescopically installed inside the limiting pin holes 24. A metal end 28 is installed at the outer end of the limiting pin 25, and an inclined working surface 29 is installed at the bottom end. Multiple spring plates 27 are evenly installed on the outer wall of the limiting pin 25. The spring plates 27 are elastically connected to the top wall of the drive chamber via springs 26. On the upper side, a set of conical moving rollers are installed in the drive chamber on the lower side of each row of inclined working surfaces 29. The moving rollers move parallel to the axis of the sealing feeder 14 and apply an upward thrust to the inclined working surfaces 29 they pass through, thereby controlling the metal end 28 to rise up and contact the inside of the grouting hole 13, thus fixing the sealing feeder 14. The outer end of the moving roller is connected to a limiting moving part. The limiting moving part is used to drive the moving roller to move while preventing the sealing feeder 14 from excessively shrinking into the grouting hole 13.

[0039] In this embodiment of the invention, the limiting moving part includes a threaded rod 21 connected to the end of the moving roller. A threaded hole 20 is provided on the drive chamber wall corresponding to the threaded rod 21. The threaded rod 21 is threaded into the threaded hole 20. A single rod handle 22 is installed at the outer end of the threaded rod 21 (only a single rotating rod is used to reduce space occupation after rotation stops). After the metal end 28 on the corresponding side of the rotating handle 22 contacts the inner wall of the grouting hole 13, the rotating handle 22 contacts the outer wall of the grouting hole 13, thereby preventing the sealing feeder 14 from transitioning into the grouting hole 13. That is, under the action of the moving roller, the threaded rod 21, and the rotating handle 22, the sealing feeder 14 is accurately inserted into the grouting hole 13 and kept stable.

[0040] In one embodiment of the present invention, this is mainly used for waterproofing and leakage prevention, so the grout used is generally a cement-based grout, a chemical grout, or a composite grout.

[0041] Among them, cement-based grouts typically include ordinary cement grout, ultrafine cement grout, cement-water glass two-component grout, etc.; chemical grouts include polyurethane, epoxy resin grout, acrylate grout, etc.; composite grouts include cement-chemical composite grout, etc. The specific selection depends on the actual situation. At the same time, the manufacturing of various grouts can be achieved using existing technologies, so they will not be elaborated here.

[0042] In a preferred embodiment of the present invention, a rubber blocking ring 23 is installed on the outer side of the connection between the conical section 16 and the frustum-shaped section 15. The diameter of the rubber blocking ring 23 is the same as that of the cylindrical section 19. When the sealing feeder 14 moves toward the inside of the grouting hole 13, the edge of the rubber blocking ring 23 slides in contact with the inner wall of the grouting hole 13, which to a certain extent prevents the grout inside the waterproof grouting layer 12 from spreading toward the frustum-shaped section 15.

[0043] The slurry connecting valve 18 can be a ball valve, check valve, or pressure regulating valve, etc. The valve body has the advantages of rapid opening and closing and high stability.

[0044] The working process of this utility model is as follows: Drilling and positioning: Grouting holes 13 are opened longitudinally at intervals on the wall 10 corresponding to the seepage surface 11.

[0045] Install the feeding component: Insert the sealing feeding component 14 into the grouting hole 13, rotate the handle 22 to drive the threaded rod 21, so that the moving roller pushes the limit pin 25 to extend outward and abut against the hole wall to complete the fixing.

[0046] Connect the grouting equipment: Connect the grout pipe to the grout connecting valve 18 and open the valve to inject grout.

[0047] Grouting and filling: The grout is evenly injected into the waterproof grouting layer 12 through the transmission channel and grout outlet 17, and the rubber blocking ring 23 prevents the grout from flowing back.

[0048] Pressure stabilization and curing: After the slurry is filled, maintain the pressure, close the valve, and remove the feeding component after the slurry has cured.

[0049] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A curtain grouting repair structure for basement sidewall leakage, characterized in that, The device includes a wall (10) and a grouting hole (13) opened in the wall (10) and extending through to the waterproof grouting layer (12). The device is characterized in that: a sealing feeder (14) is inserted into the grouting hole (13). The sealing feeder (14) includes a frustum-shaped section (15) in the middle, a conical section (16) connected to both ends of the frustum-shaped section (15), and a cylindrical section (19). The device has a grout transmission channel inside. One end of the grout transmission channel is connected to an external grout pipe through a grout connecting valve (18), and the other end is connected to the waterproof grouting layer (12) through a grout outlet hole (17) opened in the conical section (16). Multiple sets of limiting members are arranged at equal intervals along the annular ring on the frustum-shaped section (15) to fix the sealing feeder (14) in the grouting hole (13).

2. The basement sidewall leakage curtain grouting repair structure according to claim 1, characterized in that, The limiting component includes multiple equally spaced axially distributed limiting pin holes (24) opened in the frustum-shaped section (15), and limiting pins (25) slidably disposed in the limiting pin holes (24). The outer end of the limiting pin (25) is provided with a metal end (28), and the bottom is provided with an inclined working surface (29). The limiting pin (25) is connected to the inner wall of the drive chamber through a spring (26). The drive chamber is provided with a moving roller that cooperates with the inclined working surface (29). The moving roller is driven by a threaded rod (21).

3. The basement sidewall leakage curtain grouting repair structure according to claim 2, characterized in that, The threaded rod (21) is threaded to the threaded hole (20) of the drive chamber wall, and the outer end is provided with a handle (22). When the handle (22) rotates, it pushes the moving roller to move axially and drives the limit pin (25) to extend radially.

4. The basement sidewall leakage curtain grouting repair structure according to claim 1, characterized in that, A rubber blocking ring (23) is provided at the connection between the conical section (16) and the frustum section (15). The diameter of the rubber blocking ring (23) is the same as that of the cylindrical section (19), and it is used to seal the inner wall of the grouting hole (13).

5. The basement sidewall leakage curtain grouting repair structure according to claim 1, characterized in that, The slurry connecting valve (18) is a ball valve, a check valve, or a pressure regulating valve.

6. The basement sidewall leakage curtain grouting repair structure according to claim 2, characterized in that, The spring plate (27) and spring (26) of the limiting pin (25) are distributed in multiple sets at equal intervals, and the moving roller has a conical structure and forms a sliding fit with the inclined working surface (29).

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