Aqueduct expansion joint anti-seepage structure

Abstract

The utility model discloses an aqueduct expansion joint anti-seepage structure which comprises an externally-attached repairing piece, the externally-attached repairing piece is arranged at the position of an expansion joint between adjacent aqueduct bottom plates, the externally-attached repairing piece comprises a water stop strip and a supporting piece, the water stop strip is tightly attached to the position of the expansion joint through the supporting piece, and the water stop strip is connected with the supporting piece. According to the structure, under the condition that water resource utilization is not interrupted, the aqueduct expansion joint can be rapidly repaired, the water stop strip is convenient to replace, the structure does not need to greatly change an original structure, and the construction difficulty and cost are reduced.

Description

Technical Field

[0001] This utility model relates to a seepage prevention structure for expansion joints in aqueducts. Background Technology

[0002] During long-term operation, the sealing gaskets at the joints of aqueduct sections in urban water supply projects are prone to aging and damage, leading to leaks. If thorough inspection and repair are not carried out, the risks will gradually accumulate, eventually causing the aqueduct joints to collapse. Such an accident would result in significant economic losses and social impact. With the expansion of cities and the increasing demand for water supply, urban water supply projects, after long-term operation, have become the main water source for cities. To meet the needs of urban domestic water use, aqueduct structures often cannot be constructed while the water supply is interrupted. Because construction in aqueduct sections is not permitted during water interruption, conventional maintenance measures only involve superficial consolidation grouting reinforcement and repairs, which cannot completely solve the leakage and safety degradation problems at the joints, thus failing to meet the project requirements.

[0003] Therefore, it is urgent to carry out dry-land reconstruction and repair of the aqueduct joints, or to build a new emergency maintenance channel to divert water and enable the aqueduct section to be equipped with water-cut maintenance conditions. This has become a major technical problem for water conservancy engineers. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a seepage-proof structure for aqueduct expansion joints. This structure enables rapid repair of aqueduct expansion joints without interrupting water resource utilization and facilitates the replacement of waterstop strips. This structure does not require significant modifications to the original structure, reducing construction difficulty and costs.

[0005] To achieve the above objectives, this application provides a seepage prevention structure for expansion joints in aqueducts, including an externally attached repair component. The externally attached repair component is installed at the expansion joint between adjacent aqueduct bottom plates. The externally attached repair component includes a waterstop strip and a support member. The waterstop strip is tightly attached to the expansion joint through the support member.

[0006] Furthermore, the support includes multiple sets of hydraulic jacks and supporting steel pipes. The telescopic ends of the multiple sets of hydraulic jacks are all equipped with steel plates and the telescopic ends are welded to the steel plates. The water-stop strip is connected to the steel plate, and the supporting steel pipes are distributed at intervals around the hydraulic jacks.

[0007] Furthermore, the supporting steel pipe can be of a fixed length or an adjustable length.

[0008] Furthermore, the outer end face of the hydraulic jack is provided with a threaded section and a rotating nut is provided on the threaded section. Multiple T-shaped grooves are symmetrically provided on both sides of the steel plate. A movable plate is provided in the T-shaped groove. The movable plate is connected to the rotating nut through a linkage. By rotating the rotating nut, the movable plate is moved upward, thereby providing a clamping force to the edge of the waterstop strip.

[0009] Furthermore, the movable plate is provided with a slot and an expansion waterstop strip is provided on the end face of the slot facing the waterstop strip.

[0010] Furthermore, the support includes connecting plates symmetrically arranged on the bottom plate of the aqueduct. The connecting plates are provided with multiple sets of inclined hydraulic telescopic rods. The inclined hydraulic telescopic rods are movably fitted with pressure plates. The waterstop strip is set on the pressure plate. The contraction and expansion of the inclined hydraulic telescopic rods change the vertical height position of the pressure plate, thereby providing an upward force for the waterstop strip to fit against the expansion joint.

[0011] Furthermore, the pressure plate is provided with a rectangular through groove corresponding to the inclined hydraulic telescopic rod, and the two sides of the bottom of the pressure plate are set with an incline.

[0012] Furthermore, the end of the inclined hydraulic telescopic rod is provided with an abutment block for abutting against the pressure plate, and the abutment block is set at an incline towards the bottom side of the pressure plate.

[0013] Furthermore, the cross-sectional shape of the waterstop strip is circular.

[0014] Beneficial effects: This application employs an externally attached repair structure that does not interrupt water supply, preventing the unusable use of water resources or severely impacting the continuous operation and water supply efficiency of the project. The structure includes a waterstop strip and supporting components. The waterstop strip possesses excellent water-stopping performance and durability, ensuring the long-term sealing of the expansion joint and reducing the risk of re-leakage. No major modifications to the original structure are required, reducing construction difficulty and cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of Example 1;

[0016] Figure 2 for Figure 1 Side sectional view;

[0017] Figure 3 This is a schematic diagram of the first type of movable plate in Embodiment 2;

[0018] Figure 4 for Figure 3 A schematic diagram;

[0019] Figure 5 A schematic diagram of the rotation and compression of the nut;

[0020] Figure 6 This is a schematic diagram of the second type of movable plate in Example 2;

[0021] Figure 7 for Figure 6 A partial schematic diagram;

[0022] Figure 8 This is a schematic diagram of Example 3.

[0023] Reference numerals: 1. Expansion joint; 2. Waterstop strip; 3. Support component; 4. Hydraulic jack; 5. Supporting steel pipe; 6. Steel plate; 7. Threaded section; 8. Rotating nut; 9. T-slot; 10. Movable plate; 11. Linkage component; 12. Connecting plate; 13. Angled hydraulic telescopic rod; 14. Pressure plate; 15. Abutment block. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] For reference Figure 1 , Figure 2 As shown, Embodiment 1 of this utility model provides a seepage-proof structure for an aqueduct expansion joint 1, including an externally attached repair component. This externally attached repair component does not require water shut-off in the aqueduct and can quickly repair the expansion joint 1 of the aqueduct bottom slab, improving the operational efficiency and water supply reliability of the project. Specifically, the externally attached repair component is installed at the expansion joint 1 between adjacent aqueduct bottom slabs. The expansion joint 1 originally contains flexible water-stopping material, but leakage occurs due to long-term temperature changes and water pressure. While traditional repair methods require water shut-off for construction, this application adopts a repair method that does not require water shut-off. The externally attached repair component includes a water-stopping strip 2 and a support component 3. The water-stopping strip 2 is tightly attached to the expansion joint 1 through the support component 3. The support component 3 includes multiple sets of hydraulic jacks 4 and supporting steel pipes 5. The supporting steel pipes 5 are of fixed length or adjustable length, used to strengthen the supporting force at locations without jack support. The telescopic ends of multiple hydraulic jacks 4 are all equipped with steel plates 6, and the telescopic ends are welded to the steel plates 6. The waterstop strip 2 is fixed to the steel plates 6, which can be secured with screws. Supporting steel pipes 5 are spaced around the hydraulic jacks 4 to further strengthen the supporting force. The cross-sectional shape of the waterstop strip 2 is circular, but other shapes are also applicable to this application. Because this application conducted experiments on the waterstop strip 2 shape and its water-stopping effect, it was found that the circular shape has a better water-stopping effect than other shapes, and the circular shape has the highest fit with the expansion joint 1. This external waterstop is easy to install and does not require significant modifications to the original structure.

[0026] For reference Figure 8As shown, this utility model also provides a third embodiment, which is basically the same as the first embodiment above, except that: the support member 3 includes a connecting plate 12 symmetrically arranged on the bottom plate of the aqueduct, the connecting plate 12 is provided with multiple sets of inclined hydraulic telescopic rods 13, the inclined hydraulic telescopic rods 13 are movably sleeved with pressure plates 14, the waterstop strip 2 is arranged on the pressure plates 14, the contraction and expansion of the inclined hydraulic telescopic rods 13 thereby changing the vertical height position of the pressure plates 14, thereby providing an upward force for the waterstop strip 2 to fit against the expansion joint 1.

[0027] Based on the above embodiments, the pressure plate 14 is provided with a rectangular through groove corresponding to the inclined hydraulic telescopic rod 13, and the bottom two sides of the pressure plate 14 are set with an inclined surface.

[0028] Based on the above embodiment, the end of the inclined hydraulic telescopic rod 13 is provided with an abutment block 15 for abutting against the pressure plate 14, and the abutment block 15 is inclined towards the bottom side of the pressure plate 14.

[0029] Specifically, the support component 3 includes connecting plates 12 symmetrically arranged on the bottom plate of the aqueduct. The connecting plates 12 are fixed to the bottom plate of the aqueduct by pouring concrete or bolts. The end of the inclined hydraulic telescopic rod 13 is provided with an abutment block 15, which is a right-angled trapezoidal block. The inclined hydraulic telescopic rod 13 is movably fitted with a pressure plate 14. The pressure plate 14 is provided with a rectangular through groove corresponding to the inclined hydraulic telescopic rod 13. The width of the rectangular through groove is greater than the diameter of the inclined hydraulic telescopic rod 13. The bottom two sides of the pressure plate 14 are provided with inclined surfaces corresponding to the inclined surfaces of the right-angled trapezoidal blocks. When the expansion joint 1 widens and changes laterally over time, the hydraulic telescopic rod moves laterally with the expansion joint 1, which will cause the abutment block 15 to further push the pressure plate 14 upward, which can provide an upward abutment force to the water-stopping strip 2 to a certain extent and enhance the water-stopping effect.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A seepage-proof structure for expansion joints in aqueducts, characterized in that: The invention includes an external repair component, which is installed at the expansion joint (1) between adjacent aqueduct bottom plates. The external repair component includes a waterstop strip (2) and a support member (3). The waterstop strip (2) is tightly attached to the expansion joint (1) through the support member (3).

2. The seepage prevention structure for expansion joints in aqueducts according to claim 1, characterized in that: The support member (3) includes multiple sets of hydraulic jacks (4) and support steel pipes (5). The telescopic ends of the multiple sets of hydraulic jacks (4) are all equipped with steel plates (6) and the telescopic ends are welded to the steel plates (6). The water-stop strip (2) is connected to the steel plate (6), and the support steel pipes (5) are distributed at intervals around the hydraulic jacks (4).

3. The seepage prevention structure for the expansion joint of the aqueduct according to claim 2, characterized in that: The supporting steel pipe (5) can be of fixed length or adjustable length.

4. The seepage prevention structure for the expansion joint of the aqueduct according to claim 1, characterized in that: The support member (3) includes a connecting plate (12) symmetrically arranged on the bottom plate of the aqueduct. The connecting plate (12) is provided with multiple sets of inclined hydraulic telescopic rods (13). The inclined hydraulic telescopic rods (13) are movably fitted with a pressure plate (14). The waterstop strip (2) is set on the pressure plate (14). The contraction and expansion of the inclined hydraulic telescopic rods (13) thereby change the vertical height position of the pressure plate (14) and thus provide an upward force for the waterstop strip (2) to fit against the expansion joint (1).

5. The seepage prevention structure for the expansion joint of the aqueduct according to claim 4, characterized in that: The pressure plate (14) is provided with a rectangular through groove corresponding to the inclined hydraulic telescopic rod (13), and the bottom two sides of the pressure plate (14) are set with an incline.

6. The seepage prevention structure for the expansion joint of the aqueduct according to claim 5, characterized in that: The end of the inclined hydraulic telescopic rod (13) is provided with an abutment block (15) for abutting against the pressure plate (14), and the abutment block (15) is set at an angle towards the bottom side of the pressure plate (14).

7. The aqueduct expansion joint seepage prevention structure according to claim 3 or 6, characterized in that: The cross-sectional shape of the waterstop strip (2) is circular.

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