A steel-concrete combined wedge-shaped water-stop structure

Abstract

The present invention discloses a steel-concrete combined wedge-shaped waterstop structure, including a channel foundation and a waterstop block, wherein the channel foundation has a wedge-shaped channel, the waterstop block is a wedge-shaped structure matching the shape of the wedge-shaped channel, and rubber waterstop strips are arranged on the bottom surface and both sides where the waterstop block is in contact with the wedge-shaped channel body. The present invention can convert the unidirectional water pressure borne by the end of the structure into an extrusion force on the rubber waterstop strip on the side by designing the channel of the wedge-shaped structure to cooperate with the waterstop block, and the dock door load on the top can be converted into an extrusion force on the rubber waterstop strip on the bottom. The greater the pressure, the tighter the rubber waterstop strip is pressed, and the better the waterstop effect is, thereby achieving a good waterstop effect. The waterstop steel plate and the rubber waterstop strip are designed to jointly form a continuous waterstop surface, thereby ensuring the waterstop performance of the structure; the guide steel plate with a slope is designed to ensure that the waterstop block is accurately positioned and bottomed, thereby realizing automatic positioning and pre-tightening during installation.

Description

Technical Field

[0001] This invention relates to the field of large-scale prefabrication yard engineering technology in marine engineering, and in particular to a steel-concrete composite wedge-shaped waterstop structure. Background Technology

[0002] With the nation's vigorous development of near-shore and coastal engineering, large precast components, as an important part of near-shore and coastal engineering and infrastructure projects, require rapid prefabrication and safe transportation to ensure project quality and construction progress. To guarantee the quality of component prefabrication, dry-site construction is typically required. After prefabrication, the components are moved laterally to the deep-water dock area, the dock gate is closed, and the components are floated out to sea. Due to the need to install the precast component's lateral movement track and place the jacking equipment, a channel needs to be reserved at the bottom of the dock gate foundation. This channel must withstand significant unidirectional water pressure at its ends and substantial dock gate load at its top. Furthermore, the space is limited, requiring repeated opening and closing during operation, making the design challenging. The watertightness of the channel is a weak point in the entire dock gate design; therefore, effectively preventing leaks is crucial. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a steel-concrete composite wedge-shaped waterstop structure that is reasonable in structure, has good water-stopping effect, simple construction process, and is easy to maintain and use, in order to overcome the defects of the existing technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a steel-concrete composite wedge-shaped waterstop structure, characterized in that: it includes a channel foundation and a waterstop block; the channel foundation has a wedge-shaped channel, the wedge-shaped channel being a wedge-shaped structure with a width on the water-facing side greater than the width on the back water-facing side; the waterstop block is a wedge-shaped structure matching the shape of the wedge-shaped channel, its width on the water-facing side being greater than the width on the back water-facing side; rubber waterstop strips are provided on the bottom surface and both sides of the waterstop block that have contact with the channel foundation; after the waterstop block is embedded in the wedge-shaped channel, under the action of unidirectional water pressure at the end and top load, the rubber waterstop strip on its bottom surface is pressed against the bottom of the wedge-shaped channel, and the rubber waterstop strips on both sides are pressed against the two side walls of the wedge-shaped channel to form a sealed waterstop structure; a guide structure is provided between the side walls of the wedge-shaped channel and the two sides of the waterstop block.

[0005] Furthermore, the guiding structure includes guide limiting steel plates disposed on both sides of the wedge-shaped channel and guide steel plates disposed on both sides of the water-facing side of the water-stop block. The guide limiting steel plates extend from the two sides of the wedge-shaped channel and are inclined downwards and towards the back water side. The guide steel plates are inclined downwards and gradually contract towards the back water side in accordance with the inclined direction of the guide limiting steel plates. After the water-stop block is fully inserted into the wedge-shaped channel, the guide steel plates are pressed tightly against the inclined surface of the guide limiting steel plates.

[0006] Furthermore, the channel foundation is made of cast-in-place concrete, with edging steel plates pre-embedded on the concrete surface and water-stop steel plates pre-embedded inside the concrete. The edging steel plates and water-stop steel plates are welded and fixed to the reinforcing bars inside the concrete. The guide limiting steel plate is welded and fixed to the edging steel plate, and several transversely arranged reinforcing ribs are welded between the water-facing surface of the guide limiting steel plate and the edging steel plate.

[0007] Furthermore, the waterstop block includes a steel box grid formed by a steel base plate, a steel top plate, a steel front plate, steel side plates, and longitudinally and transversely connected inner partitions, and concrete filling the inside of the steel box grid; the waterstop block is a wedge-shaped structure with a wider front side facing the water and a narrower rear side facing away from the water, and its shape and size match the wedge-shaped channel. The bottom surface and two sides of the front side facing the water have concave portions, and the depth of the concavity is less than the thickness of the rubber waterstop in the non-compressed state. The rubber waterstop is installed in the concave portion to avoid affecting the stability of the waterstop block due to the rubber waterstop protruding too high.

[0008] Furthermore, the rubber waterstop includes a rubber strip, which is installed in the recessed part of the front section of the waterstop block, pressed by a pressure pad, and locked and fixed to the steel base plate and steel side plate respectively by bolts; at the connection between the side and the bottom surface, it is subjected to hot vulcanization treatment to form a continuous waterstop line.

[0009] Furthermore, the guide steel plate is welded and fixed to the front steel plate, and several transversely arranged reinforcing ribs are welded between the back surface of the guide steel plate and the front steel plate to give the guide steel plate stronger compressive strength; lifting holes are provided on the guide steel plate to facilitate lifting and installation.

[0010] Furthermore, the inner partition includes vertical partitions and horizontal partitions made of steel plates, wherein some of the vertical partitions are provided with lifting holes, forming a four-point lifting structure with the lifting holes provided in the steel guide plate, which facilitates the lifting of the waterstop block.

[0011] Because the guide and limiting steel plate is inclined downwards and backwards, the space at the top of the wedge-shaped channel is larger than the space at the bottom, which facilitates the installation of the waterstop block. During installation, the waterstop block slides down along the guide steel plate, and under the guidance and restraint of the guide and limiting steel plate, the waterstop block moves backwards as it descends. Since the space at the rear of the wedge-shaped channel is smaller than the space at the front, the waterstop block squeezes the rubber waterstop strips on both sides tighter and tighter as it descends and moves backwards, thus achieving the positioning and pre-tightening effect of the waterstop block.

[0012] This invention utilizes a wedge-shaped channel design that works in conjunction with a waterstop block to convert the unidirectional water pressure at the structure's ends and the dock load at the top into compressive force on the rubber waterstop. The greater the pressure, the tighter the rubber waterstop is compressed, resulting in a better water-stopping effect. The design of the waterstop steel plate and rubber waterstop together forms a continuous waterstop surface, ensuring the structure's water-stopping performance. The pre-embedded steel plate edging on the channel surface further enhances the structure's durability. The design of the inclined, sloped guide steel plate ensures precise positioning of the waterstop block, enabling automatic positioning and pre-tightening during hoisting and installation, facilitating maintenance and use. Finally, the materials used in the structure of this invention are commonly used steel and concrete structures, with most components being prefabricated, resulting in a simple construction process and low overall cost. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention (the reinforcing ribs on the front of the guide and limiting steel plate are not shown).

[0014] Figure 2 This is a plan view of the present invention (the reinforcing ribs on the front of the guide and limiting steel plate are not shown).

[0015] Figure 3 This is a schematic diagram of the elevation of the present invention;

[0016] Figure 4 A three-dimensional structural diagram of a stop block;

[0017] Figure 5 A three-dimensional structural diagram of the stop block from another angle;

[0018] Figure 6 A front view of the water-stopping block;

[0019] Figure 7 A side view of the stop block;

[0020] Figure 8 A schematic diagram of the cross-section of the stop block.

[0021] In the diagram, 1 is the channel foundation, 11 is the wedge-shaped channel, 12 is the edge steel plate, 13 is the waterstop steel plate, 14 is the guide and limiting steel plate, 15 is the reinforcing bar, 2 is the waterstop block, 21 is the steel bottom plate, 22 is the steel top plate, 23 is the steel front plate, 24 is the steel side plate, 25 is the vertical diaphragm, 26 is the horizontal diaphragm, 27 is the installation lifting hole, 3 is the rubber waterstop, 31 is the rubber strip, 32 is the pressure pad strip, 33 is the bolt, 4 is the concrete, 5 is the guide steel plate, 51 is the lifting hole, and 52 is the reinforcing rib. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0023] In this embodiment, refer to Figures 1-8 The steel-concrete composite wedge-shaped waterstop structure includes a channel foundation 1 and a waterstop block 2. The channel foundation 1 has a wedge-shaped channel 11, which is a wedge-shaped structure with a width on the water-facing side (front end) greater than the width on the back water-facing side (rear end). The waterstop block 2 is a wedge-shaped structure (similar to a trapezoid) that matches the shape of the wedge-shaped channel 11, with a width on the water-facing side (front end) greater than the width on the back water-facing side (front end). Rubber waterstop strips 3 are provided on the bottom surface and both sides of the waterstop block 2 that are in contact with the channel foundation 1. After the waterstop block 2 is embedded in the wedge-shaped channel 11, the rubber waterstop strips 3 on its bottom surface are pressed against the bottom of the wedge-shaped channel 11, and the rubber waterstop strips 3 on both sides are pressed against the two side walls of the wedge-shaped channel 11 to form a sealed waterstop structure. A guide structure is provided between the side walls of the wedge-shaped channel 11 and the two sides of the waterstop block 2.

[0024] The guiding structure includes guide limiting steel plates 14 disposed on both sides of the wedge-shaped channel 11 and guide steel plates 5 disposed on both sides of the water-facing side of the water-stop block 2. The guide limiting steel plates 14 extend from the two sides of the wedge-shaped channel 11 and are inclined downwards and towards the back water side. The guide steel plates 5 are inclined downwards and gradually contract towards the back water side in accordance with the inclined direction of the guide limiting steel plates 14. After the water-stop block 2 is fully inserted into the wedge-shaped channel 11, the guide steel plates 5 are pressed tightly against the inclined surface of the guide limiting steel plates 14.

[0025] The channel foundation 1 is made of cast-in-place concrete. A edging steel plate 12 is pre-embedded on the concrete surface, and a water-stop steel plate 13 is pre-embedded inside the concrete. The edging steel plate 12 and the water-stop steel plate 13 are welded and fixed to the reinforcing steel 15 inside the concrete. The guide limiting steel plate 14 is welded and fixed to the edging steel plate 12, and several transversely arranged reinforcing ribs are welded between the water-facing surface of the guide limiting steel plate 14 and the edging steel plate 12.

[0026] The waterstop block 2 includes a steel box grid formed by a steel base plate 21, a steel top plate 22, a steel front plate 23, a steel side plate 24, and longitudinally and transversely connected inner partitions. The steel box grid is filled with concrete 4 to form the main body of the waterstop block. The waterstop block 2 is a wedge-shaped structure with a wider front side facing the water and a narrower rear side facing away from the water. Its shape and size match the wedge-shaped channel. The bottom surface and two sides of the front side facing the water have concave parts. The depth of the concavity is less than the thickness of the rubber waterstop 3 in the non-compressed state. The rubber waterstop 3 is installed in the concave part to avoid affecting the stability of the waterstop block 2 due to the rubber waterstop 3 protruding too high.

[0027] The rubber waterstop 3 includes a rubber strip 31. The rubber waterstop 3 is installed on the side and bottom recess of the waterstop block 2, forming a semi-enclosed structure on both sides and bottom of the waterstop block 2, which can realize an integrated waterstop structure. The rubber strip 31 is pressed by the pressure pad 32 and locked and fixed to the steel base plate 21 and the steel side plate 24 by bolts 33 respectively.

[0028] The guide steel plate 5 is welded and fixed to the front steel plate 23, and several horizontally arranged reinforcing ribs 52 are welded between the back surface of the guide steel plate 5 and the front steel plate 23 to give the guide steel plate 5 stronger compressive strength; a lifting hole 51 is provided on the guide steel plate 5 to facilitate lifting and installation.

[0029] The inner partition includes several vertical partitions 25 and horizontal partitions 26 made of steel plates. Some of the vertical partitions 25 are provided with mounting holes 27, which together with the mounting holes provided in the steel guide plate form a four-point lifting structure to facilitate the lifting of the waterstop block.

[0030] Because the guide limiting steel plate 14 is inclined downwards and backwards, the space at the top of the wedge-shaped channel 11 is larger than the space at the bottom, which facilitates the installation of the waterstop block 2. During installation, the waterstop block 2 slides down along the guide steel plate 5. Under the pressure of the guide limiting steel plate 14 pressing against the guide steel plate 5, the waterstop block 2 descends and retracts simultaneously. Since the space at the rear of the wedge-shaped channel 11 is smaller than the space at the front, the waterstop block 2, while descending and retracting, will squeeze the rubber waterstop strips 3 on both sides tighter and tighter, thereby achieving the positioning and pre-tightening effect of the waterstop block 2.

[0031] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of this application. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A steel-concrete composite wedge-shaped water-stopping structure, characterized in that: The utility model comprises a channel foundation and a water stop block. The channel foundation has a wedge-shaped channel. The wedge-shaped channel is a wedge-shaped structure whose width on the water side is larger than that on the water back side. The water stop block is a wedge-shaped structure matching the shape of the wedge-shaped channel. Its width on the water side is larger than that on the water back side. Rubber water stop strips are arranged on the bottom surface and both sides of the water stop block which are in contact with the wedge-shaped channel. After the water stop block is embedded in the wedge-shaped channel, the rubber water stop strip on the bottom surface is pressed against the bottom of the wedge-shaped channel, and the rubber water stop strips on both sides are pressed against the two side walls of the wedge-shaped channel to form a sealed water stop. Structure; a guide structure is arranged between the side walls of the wedge-shaped groove and the two sides of the water stop block. The water stop block includes a steel box grid surrounded by a steel bottom plate, a steel top plate, a steel front plate, a steel side plate and inner partitions connected vertically and horizontally. The interior of the steel box grid is filled with concrete to form the main body of the water stop block; the water stop block is a wedge-shaped structure with a wide front end facing the water side and a narrow rear end facing the water side. The shape and size are consistent with the wedge-shaped groove, wherein the bottom surface and two side surfaces of the front end facing the water side have an inner recess, the depth of the recess is less than the thickness of the rubber water stop in a non-extruded state, and the rubber water stop is installed in the inner recess.

2. The steel-concrete composite wedge-shaped water-stopping structure according to claim 1 is characterized in that: The guide structure includes guide and limit steel plates arranged on both side walls of the wedge-shaped groove and guide steel plates arranged on both sides of the water side of the water stop block, wherein the guide and limit steel plates extend relatively from both side walls of the wedge-shaped groove and are a structure extending downward and obliquely toward the back water side; the guide steel plate is a structure that gradually inclines and contracts from top to bottom toward the back water side in accordance with the inclination direction of the guide and limit steel plate, and after the water stop block is completely installed in the wedge-shaped groove, the guide steel plate is pressed tightly against the inclined surface of the guide and limit steel plate.

3. The steel-concrete composite wedge-shaped water-stopping structure according to claim 2 is characterized in that: The channel foundation is made of cast-in-place concrete, with an edging steel plate embedded in the concrete surface and a waterstop steel plate embedded in the concrete. The edging steel plate and the waterstop steel plate are welded and fixed to the steel bars inside the concrete; the guide and limiting steel plate is welded and fixed to the edging steel plate, and a number of transversely arranged reinforcing ribs are welded between the water-facing surface of the guide and limiting steel plate and the edging steel plate.

4. The steel-concrete composite wedge-shaped water-stopping structure according to claim 1 is characterized in that: The rubber waterstop includes rubber strips, which are respectively installed in the concave parts of the side and bottom surfaces of the waterstop block, and are hot-vulcanized at the connection between the side and bottom surfaces to form a semi-enclosed structure for the two sides and bottom surface of the waterstop block; the rubber strips are compressed by a pressure pad and are locked and fixed to the steel bottom plate and the steel side plate by bolts.

5. The steel-concrete composite wedge-shaped water-stopping structure according to claim 2 is characterized in that: The guide steel plate is welded and fixed to the steel front plate, and a plurality of transversely arranged reinforcing ribs are welded between the back water surface of the guide steel plate and the steel front plate; and hoisting holes are arranged on the guide steel plate.

6. The steel-concrete composite wedge-shaped water-stopping structure according to claim 1 is characterized in that: The inner partition includes vertical partitions and horizontal partitions made of steel plates, and some vertical partitions are provided with installation holes.

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