Waterproof structure of construction joint and deformation joint of pipe gallery

Abstract

The utility model discloses a kind of waterproof structure of pipe gallery construction joint and deformation joint connecting place, including steel edge rubber waterstop in deformation joint and waterstop steel plate in construction joint, the steel edge rubber waterstop and waterstop steel plate vertical intersection connection, the steel edge rubber waterstop and waterstop steel plate intersection and the filling layer formed by sealant between the place extending a distance to all directions around intersection are equipped with. The utility model solves the problem of waterproof treatment difficulty of construction joint and deformation joint junction in pipe gallery construction process, and the structure is simple, the construction cost is low, reduces the probability of waterproof leakage of construction joint and deformation joint junction, improves construction quality, and can be widely applied in underground pipe gallery engineering waterproof construction technical field.

Description

Technical Field

[0001] This utility model relates to waterproof construction technology for underground utility tunnel projects, and in particular to a waterproof structure at the connection between construction joints and expansion joints in utility tunnels. Background Technology

[0002] In underground engineering projects such as urban utility tunnels, structural waterproofing is a crucial construction step, directly impacting the project's usability. During tunnel construction, construction joints and expansion joints are typically installed depending on the structural form. Construction joints are generally waterproofed using water-stop steel plates, while expansion joints are waterproofed using embedded steel-edged rubber waterstops. Since construction joints and expansion joints inevitably intersect vertically, these intersections are the most challenging areas for structural waterproofing and are prone to leakage. Therefore, ensuring proper sealing of the joints during construction is essential to guarantee waterproofing performance and prevent leakage.

[0003] Currently, the common construction method involves welding or anchoring the steel plate waterstop to the steel edge of the steel-edged rubber waterstop. However, there are no reliable measures to ensure waterproof closure at this point. During construction, the vibration of concrete pouring can easily cause the anchored or welded parts to separate, resulting in gaps. This allows groundwater from outside the pipe gallery to seep into the inside of the steel-edged waterstop, causing leakage. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the above-mentioned background technology and provide a waterproof structure at the connection between the construction joint and the expansion joint of the pipe gallery. This solves the problem of difficult waterproofing treatment at the junction of the construction joint and the expansion joint during the construction of the pipe gallery. The structure is simple, the construction cost is low, the probability of waterproof leakage at the junction of the construction joint and the expansion joint is reduced, and the construction quality is improved.

[0005] This utility model provides a waterproof structure at the connection between a construction joint and an expansion joint in a pipe gallery, including a steel-edged rubber waterstop located in the expansion joint and a waterstop steel plate located in the construction joint. The steel-edged rubber waterstop and the waterstop steel plate are perpendicularly connected. A filling layer formed by sealant is provided between the intersection of the steel-edged rubber waterstop and the waterstop steel plate and between the intersection and a certain distance extending outward from the intersection.

[0006] In the above technical solution, the steel-edged rubber waterstop is provided with steel edges on both sides, and a filling layer formed by sealant is provided between the overlapping areas of the two steel edges of the rubber waterstop and the waterstop steel plate.

[0007] In the above technical solution, a nitrile rubber putty layer is provided between the overlapping area of ​​the steel edge of each steel-edged rubber waterstop and the waterstop steel plate, and each nitrile rubber putty layer is sealed and connected to the filling layer.

[0008] In the above technical solution, each steel-edged rubber waterstop has several rivet holes evenly distributed on its steel edge, and each steel-edged rubber waterstop has rivets corresponding to the rivet holes, which pass through the steel edge of the steel-edged rubber waterstop, the nitrile rubber putty layer, the filling layer and the waterstop steel plate in sequence.

[0009] In the above technical solution, the steel-edged rubber waterstop includes a central column, connecting plates located on both sides of the central column, and connecting heads located at the outer ends of each connecting plate. The connecting heads have an arrow-shaped cross-section, and the tip of each connecting head is connected to the steel edge of the corresponding steel-edged rubber waterstop.

[0010] In the above technical solution, the central column of the steel-edged rubber waterstop is provided with a positioning hole coaxially.

[0011] In the above technical solution, the top and bottom of the waterstop steel plate are respectively provided with waterstop steel plate bending sections extending outward at a certain angle, and the top and bottom of the filling layer are respectively flush with the waterstop steel plate bending sections.

[0012] In the above technical solution, the steel-edged rubber waterstop, the steel edge of the steel-edged rubber waterstop and the outer side of the filling layer are covered with a layer of butyl rubber putty, and an adhesive layer is provided in the gap between the butyl rubber putty and the steel-edged rubber waterstop, the steel edge of the steel-edged rubber waterstop and the filling layer.

[0013] The waterproof structure at the connection between the construction joint and the expansion joint of the utility tunnel has the following beneficial effects:

[0014] This utility model features a reasonable structure, simple and reliable construction, and guaranteed quality. Its advantages lie in connecting the steel-edged rubber waterstop to the waterstop steel plate using rivets. An additional filling layer is added at the intersection of the steel-edged rubber waterstop and the waterstop steel plate, ensuring a proper fit between their opposing surfaces. This allows for a tight bond between the waterstop steel plate and the steel-edged rubber waterstop at the intersection, preventing gaps and providing excellent waterproofing. A butyl rubber putty sheet is then wrapped around the outside to form a waterproof layer, significantly improving the water-stopping effect. Attached Figure Description

[0015] Figure 1 This is a structural elevation view of the waterproof structure at the connection between the construction joint and the expansion joint of the pipe gallery according to this utility model;

[0016] Figure 2 This is an exploded top view of the waterproof structure at the connection between the construction joint and the expansion joint of the pipe gallery according to this utility model.

[0017] Figure 3 This is a longitudinal structural cross-sectional view of the waterproof structure at the connection between the construction joint and the expansion joint of the pipe gallery according to this utility model. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.

[0019] See Figures 1 to 3 The waterproof structure at the connection between the construction joint and the expansion joint of the pipe gallery of this utility model includes a steel-edged rubber waterstop 1 located in the expansion joint and a waterstop steel plate 3 located in the construction joint. The steel-edged rubber waterstop 1 and the waterstop steel plate 3 are perpendicularly connected. A filling layer 9 formed by sealant is provided between the intersection of the steel-edged rubber waterstop 1 and the waterstop steel plate 3 and between the intersection and a certain distance extending in all directions.

[0020] The steel-edged rubber waterstop 1 has steel edges 2 on both sides, and a filling layer 9 formed by sealant is provided between the overlapping areas of the two steel edges 2 and the waterstop steel plate 3.

[0021] A nitrile rubber putty layer 5 is provided between the overlapping area of ​​the steel edge 2 and the waterstop steel plate 3 of each steel-edged rubber waterstop, and each nitrile rubber putty layer 5 is sealed and connected to the filler layer 9.

[0022] Each steel edge rubber waterstop 2 has several rivet holes 6 evenly distributed on its steel edge. Each steel edge rubber waterstop 2 is provided with rivets 7 corresponding to the rivet holes 6, which pass through the steel edge rubber waterstop 2, the nitrile rubber putty layer 5, the filling layer 9 and the waterstop steel plate 3 in sequence.

[0023] The steel-edged rubber waterstop 1 includes a central column, connecting plates on both sides of the central column, and connectors located at the outer ends of each connecting plate. The connectors have an arrowhead-shaped cross-section, and the tip of each connector is connected to the corresponding steel edge 2 of the steel-edged rubber waterstop. The central column of the steel-edged rubber waterstop 1 has a positioning hole coaxially arranged at its center.

[0024] The top and bottom of the waterstop steel plate 3 are respectively provided with waterstop steel plate bending sections 4 extending outward at a certain angle, and the top and bottom of the filling layer 9 are respectively flush with the waterstop steel plate bending sections 4.

[0025] The outer sides of the steel-edged rubber waterstop 1, the steel edge 2 of the steel-edged rubber waterstop, and the filling layer 9 are covered with a layer of butyl rubber putty sheet 8, and an adhesive layer is provided in the gap between the butyl rubber putty sheet 8 and the steel-edged rubber waterstop 1, the steel edge 2 of the steel-edged rubber waterstop, and the filling layer 9.

[0026] like Figure 1The present invention discloses a waterproof structure at the connection between a construction joint and an expansion joint in a pipe gallery. The steel-edged rubber waterstop 1 is embedded within the expansion joint (not shown in the figure); the waterstop steel plate 3 is embedded within the construction joint (not shown in the figure). Rivet holes 6 are pre-drilled on the steel edge 2 of the steel-edged rubber waterstop and the waterstop steel plate 3. A nitrile rubber putty layer 5 is placed between the steel edge 2 of the steel-edged rubber waterstop and the waterstop steel plate 3, and anchored by rivets 7. The nitrile rubber putty layer 5 is 1.5mm thick and is fixed by double rows of rivets 7, filling the gap between the waterstop steel plate 3 and the steel edge 2 of the steel-edged rubber waterstop. The nitrile rubber putty layer 5 has good water resistance, air tightness, and excellent adhesion.

[0027] like Figure 2-3 As shown, a filling layer 9 is provided at the junction of the steel edge 2 and the waterstop steel plate 3 of the steel-edged rubber waterstop of this utility model; the filling layer 9 is made of sealant, which has fluidity and hardens after 3 to 4 hours of application; the outer side of the filling layer 9 and the outer side of the steel-edged rubber waterstop 1 are wrapped with butyl rubber putty sheet 8, the rubber sheet of the butyl rubber putty sheet 8 is a 3mm thick rubber sheet, and the gaps are bonded with glue, which has the advantages of high strength, fast curing and tensile strength greater than 15Mpa.

[0028] like Figure 1-3 The specific steps of this utility model are as follows:

[0029] S1. Clean the steel-edged rubber waterstop 1 and waterstop steel plate 3 at the junction of the construction joint and the expansion joint. Then, use a drilling machine (not shown in the figure) to drill rivet holes 6 at the intersection. The rivet holes 6 are spaced 20mm apart and have a diameter of 4mm.

[0030] S2. A layer of nitrile rubber putty 5 is pasted between the steel edge 2 of the steel-edged rubber waterstop and the waterstop steel plate 3. The nitrile rubber putty 5 is clamped between the steel edge 2 of the steel-edged rubber waterstop and the waterstop steel plate 3 using rivets 7.

[0031] S3. Fill the space between the steel-edged rubber waterstop 1 and the waterstop steel plate 3 with sealant to form a filling layer 9, so that the top of the bent section 4 of the waterstop steel plate is perpendicular to the steel-edged rubber waterstop 1.

[0032] S4. The filling layer 9 hardens in about 3 to 4 hours. After hardening, wipe the surface of the steel plate rubber waterstop 1 and the waterstop steel plate 3 with a clean cloth to keep the joint surface of the steel plate rubber waterstop 1 clean and tidy.

[0033] S5. Wrap the joint with butyl rubber putty sheet 8, and glue the gaps to form a waterproof layer.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A waterproof structure at the connection between a construction joint and an expansion joint in a pipe gallery, comprising a steel-edged rubber waterstop (1) located within the expansion joint and a waterstop steel plate (3) located within the construction joint, wherein the steel-edged rubber waterstop (1) and the waterstop steel plate (3) are perpendicularly connected, characterized in that: A filling layer (9) formed of sealant is provided between the intersection of the steel-edged rubber waterstop (1) and the waterstop steel plate (3) and between the intersection and a certain distance extending outward from the intersection.

2. The waterproof structure of the connection between the construction joint and the deformation joint of a pipe gallery according to claim 1, characterized by: The steel-edged rubber waterstop (1) has steel edges (2) on both sides, and a filling layer (9) formed by sealant is provided between the overlapping areas of the two steel edges (2) and the waterstop steel plate (3).

3. The waterproof structure of the connection between the construction joint and the deformation joint of a pipe gallery according to claim 2, characterized in that: A nitrile rubber putty layer (5) is provided between the overlapping area of ​​the steel edge (2) and the waterstop steel plate (3) of each steel edge rubber waterstop, and each nitrile rubber putty layer (5) is sealed and connected to the filler layer (9).

4. The waterproof structure of the connection between the construction joint and the deformation joint of a pipe gallery according to claim 3, characterized by: Each steel edge rubber waterstop has several rivet holes (6) evenly distributed on the steel edge (2). Each steel edge rubber waterstop has rivets (7) corresponding to the rivet holes (6) and passing through the steel edge (2), nitrile rubber putty layer (5), filling layer (9) and waterstop steel plate (3) in sequence.

5. The waterproof structure of the connection between the construction joint and the deformation joint of the pipe gallery according to claim 4, characterized by: The steel-edged rubber waterstop (1) includes a central column in the middle, connecting plates on both sides of the central column, and connecting heads located at the outer ends of each connecting plate. The connecting heads have an arrow-shaped cross section, and the tip of each connecting head is connected to the corresponding steel edge (2) of the steel-edged rubber waterstop.

6. The waterproof structure of the connection between the construction joint and the deformation joint of a pipe gallery according to claim 5, characterized by: The steel-edged rubber waterstop (1) has a positioning hole coaxially provided at the center of the central column.

7. The waterproof structure of the connection between the construction joint and the deformation joint of a pipe gallery according to claim 6, characterized by: The top and bottom of the waterstop steel plate (3) are respectively provided with waterstop steel plate bending sections (4) extending outward at a certain angle, and the top and bottom of the filling layer (9) are respectively flush with the waterstop steel plate bending sections (4).

8. The waterproof structure at the connection between the construction joint and the expansion joint of the pipe gallery according to claim 7, characterized in that: The outer side of the steel-edged rubber waterstop (1), the steel edge of the steel-edged rubber waterstop (2) and the filling layer (9) is covered with a layer of butyl rubber putty sheet (8), and an adhesive layer is provided in the gap between the butyl rubber putty sheet (8) and the steel-edged rubber waterstop (1), the steel edge of the steel-edged rubber waterstop (2) and the filling layer (9).

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