Ship lock structural joint composite water stop system and construction method thereof

Abstract

The invention discloses a ship lock structural joint composite water stop system and a construction method thereof. The water stop system comprises a surface layer water stop system and a middle layer water stop system. The surface water stop system comprises a polyurea coating, tire base cloth, elastic filler, a V-shaped groove and a rubber rod; the V-shaped groove is located in the top end of the structural joint. The rubber rod is arranged in the V-shaped groove; the V-shaped groove is filled with the elastic filler; the elastic filler is coated with the polyurea coating, and the tire base cloth is compounded in the polyurea coating; the middle-layer water stopping system comprises a grouting type rubber water stopping belt, a grouting pipe, an inverted filter type film bag, a fixing plate, a detachable grouting connector and a pressing-sealing assembly; the two ends of the groutable rubber waterstop are connected with the fixing plates; an opening in the end of the inverted filter type film bag is sealed to the end of the groutable rubber waterstop, the detachable grouting connector is arranged on the fixing plate and extends out of the inverted filter type film bag, and a pressing-sealing assembly is arranged at the joint of the detachable grouting connector and the inverted filter type film bag. And one end of the grouting pipe is connected to the inverted filter type film bag. The composite water stop system is simple in structure, convenient to install, high in integrity and low in cost.

Description

Technical Field

[0001] The invention relates to a ship lock water-stopping structure, in particular to a ship lock structural joint composite water-stopping system and a construction method thereof. Background Art

[0002] Water transportation is an important part of modern transportation and plays a vital role in modern economic development.

[0003] As an important part of the dredging of waterways, the safety and smooth operation of ship locks are related to the development of the entire water transportation and even the entire national economy.

[0004] Structural joints are usually set between the lock head, lock chamber and guide wall, between new and old buildings and at the places where the foundation soil changes suddenly to avoid structural damage caused by internal and external reasons such as temperature expansion and contraction, foundation settlement and earthquake collision. As the weak link in the entire engineering construction, structural joints play a vital role in ensuring the normal operation of the lock and resisting the adverse effects of various factors on the lock.

[0005] Structural joint waterstopping is an important part of preventing and controlling water leakage in ship lock structures. Traditional structural joints often use rubber waterstops or copper sheets for single waterstopping. These materials themselves have certain defects. Under the influence of temperature expansion and contraction and uneven settlement of adjacent structural sections, the waterstop structure is very prone to oxidation corrosion, resulting in water leakage. In addition, the concrete around the waterstop material may also have quality defects (such as honeycombs, holes, bubbles, etc.), concrete damage caused by ship collision, or leakage channels formed by water pressure erosion, which greatly affect the long-term safe operation of the ship lock structure.

[0006] The main difficulty in dealing with leakage in ship lock structural joints is that it is affected by multiple coupling factors, such as repeated changes in high water pressure, differential deformation of concrete structure, and severe damage and aging of water-stopping materials, which lead to water-stop failure. For the above situations, water-stopping facilities need to be repaired and replaced, but replacing water-stopping facilities is not only difficult to construct, but also requires multiple complex processes, which is very complicated, and requires a lot of time, manpower and financial resources. It is not suitable to use this method to deal with ship lock structural joints for a long time. Therefore, ship lock structural joints urgently need a new water-stopping system with simple structure, good durability, overall newness and excellent water-stopping effect. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a novel composite water-stopping system for ship lock structural joints with simple structure and low cost, a construction method thereof and a ship lock, which can effectively solve the water-stopping problem of ship lock structural joints with large water heads.

[0008] The technical solution adopted by the present invention is: A composite water-stopping system for ship lock structural joints, used for water-stopping the structural joints between the left structural section and the right structural section, including a surface water-stopping system and a middle water-stopping system; The surface waterproofing system includes a polyurea coating, a tire base fabric, an elastic filler, a V-shaped groove and a rubber rod; The V-shaped groove is opened in the left structural section and the right structural section, and the bottom of the V-shaped groove is located at the top of the structural seam; the rubber rod is arranged at the bottom of the V-shaped groove; the elastic filler is filled in the V-shaped groove, and the elastic filler part protrudes outside the V-shaped groove; the polyurea coating is coated on the elastic filler and the left structural section and the right structural section, and a layer of tire base cloth is compounded in the polyurea coating; The middle layer water stop system comprises a groutable rubber water stop belt, a grouting pipe, a filter type membrane bag, a fixing plate and a detachable grouting joint; The groutable rubber water stop is used to close the structural seam, and its two ends extend into the left structural section and the right structural section respectively and are connected to the fixing plate; The end opening of the anti-filter type membrane bag is sealed in the end rubber of the groutable rubber water stop belt, and the detachable grouting joint is arranged on the fixed plate and its end extends out of the anti-filter type membrane bag; One end of the grouting pipe is connected to the reverse filtration type membrane bag, and the other end extends to the outside of the left structural section or the right structural section. The grouting pipe is used to inject slurry into the reverse filtration type membrane bag to fill the gap.

[0009] Furthermore, the composite water-stopping system of the ship lock structural joint also includes an outer water-stopping system, which includes a copper water-stopping plate, an upper caulking plate and a lower caulking plate; the upper caulking plate and the lower caulking plate are respectively installed on both sides of the structural joint, the copper water-stopping plate is installed between the upper caulking plate and the lower caulking plate, and the copper water-stopping plate is located on the side of the groutable rubber water-stopping strip away from the V-shaped groove.

[0010] Furthermore, the composite water-stopping system for the ship lock structure joint also includes a leakage detection system, which includes a temperature-sensitive optical fiber. The temperature-sensitive optical fiber is installed near the anti-filtration membrane bag and is in contact with the groutable rubber waterstop. The temperature-sensitive optical fiber is also installed between the upper caulking plate and the lower caulking plate and is located between the copper waterstop sheet and the groutable rubber waterstop. The temperature-sensitive optical fiber is used to sense temperature changes caused by water seepage.

[0011] Furthermore, the temperature-sensitive optical fiber is sequentially covered with a metal tube, a fiber mesh tube, a yarn sleeve and a filter membrane.

[0012] Furthermore, the surfaces of the left structural segment and the right structural segment are provided with surface interface grooves, the V-shaped grooves are opened on the bottom wall of the surface interface groove, arc grooves are respectively provided between the two side walls and the bottom wall of the surface interface groove, and the polyurea coating is coated on the bottom wall and the two ends extend into the arc grooves respectively.

[0013] Furthermore, the bottom wall length L of the surface interface groove satisfies the following formula: ; - Bond strength between polyurea coating and surface layer; - tensile strength of polyurea coating; - thickness of polyurea coating; d——preset surplus length.

[0014] Furthermore, the polyurea coating is covered with an elastic protective cover, the bottom layer of the elastic protective cover has the same shape as the surface structure of the polyurea coating, and the top layer of the elastic protective cover is a plane.

[0015] The present invention also provides a construction method for a ship lock structure joint water-stopping system, comprising the steps of: Perform steel cage binding construction, install the groutable rubber water stop (3) in the middle of the structural joint (7), connect the grouting pipe to the grouting joint on the steel plate at the end of the groutable rubber water stop, and fix the temperature sensing optical fiber in the rubber ring on the groutable rubber water stop; Pour concrete on both sides to form surface interface grooves and V-shaped grooves; After the pouring is completed and the concrete reaches the specified strength, grouting construction is carried out, and the expandable polymer is filled into the filter membrane bag through the grouting pipe; Install the rubber rod at the bottom of the V-shaped groove by hot melting or geo-nail, fill the V-shaped groove with elastic filler, and design the top filler into an arc shape during construction; Apply polyurea by hand scraping, apply 0.5-1mm each time, cover with a layer of tire base cloth after applying 2mm, and then continue to apply polyurea until the thickness of the polyurea coating reaches 4mm; After the polyurea coating reaches the specified strength through curing, a layer of elastic protective cover is installed on the coating surface.

[0016] Furthermore, after step (1) and before step (2), the method further includes the following steps: installing an upper caulking plate and a lower caulking plate at the reserved structural joint, and aligning the copper nose of the copper water stop plate with the middle seam of the caulking plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: Compared with the single waterproofing method of rubber belt or copper sheet which is often used in traditional structural joints, the present invention adopts a double or even triple composite waterproofing system. The surface layer is composed of polyurea coating-elastic filler. The physical advantages of polyurea such as high tensile strength, high elongation at break, strong adhesion and excellent waterproof and anti-corrosion properties are utilized to achieve a good surface waterproofing effect. At the same time, the elastic filler has the characteristics of high plasticity, strong deformation adaptability, excellent aging resistance, outstanding anti-seepage performance, strong bonding with concrete and the like, and is easy to construct, so it is very suitable for the anti-seepage treatment of the structural joints of ship locks. The V-shaped groove is designed as a deep concave structure, and the entire surface is designed as an Ω shape. The traditional surface usually adopts steel strips, bolts and other anchoring systems to form a flat type. This design will result in poor deformation ability and short service life due to the unevenness of the concrete and the corrosion of the inner side of the cover plate by the filler. The Ω-shaped surface layer realizes the organic combination of the chemical technology bonding coating and the physical technology embedded anti-peeling anchoring system, so that the anti-seepage coating and the elastic filler are basically completely bonded to the concrete, greatly enhancing the integrity and anti-seepage of the structure. At the same time, the coating is not higher than the concrete on both sides, and a protective cover plate is covered outside the coating. This can not only effectively enhance the deformation resistance of the surface of the structural joint, but also effectively prevent the impact of ship collision.

[0018] The middle layer is equipped with a buried groutable rubber waterstop. Bolts for fixing the rubber waterstop are set at the end of the structural joint. The grouting pipe uses a rubber hose. Unlike the steel grouting pipe, which needs to be inserted into the steel cage before passing through the steel cage to connect with the waterstop, the hose can be combined with the waterstop into a whole and directly fixed to the steel cage, which is easy to install. At the same time, there is no problem of low survival rate of steel grouting pipes. The end of the rubber waterstop is connected to an anti-filtration membrane bag wrapped around the steel plate. Compared with the traditional grouting method, the use of geotextile tape greatly enhances the integrity of the structure, improves the grouting efficiency, and the density after grouting is also more excellent. The anti-filtration membrane bag is connected to the grouting pipe, and epoxy slurry is injected into the geotextile tape through the grouting pipe. The geotextile tape is expanded by grouting to compact the gaps between the concrete and improve the water-stopping effect of the middle layer.

[0019] The last layer is a copper water stop plate, which is formed by the oxidation reaction of pure copper and air. Double-layer oxide protective film, both oxides are difficult to react with weak acids and weak bases, so the water stop has a strong corrosion resistance. At the same time, the water stop copper sheet has good ductility and can better adapt to the deformation of concrete, and polyethylene closed-cell foam board is used as the upper and lower caulking plates to wrap the copper water stop sheet, so as to better compact the structural joints and improve the water stop effect.

[0020] In addition to the three-layer progressive anti-seepage structure, the present invention is also equipped with a temperature-sensitive optical fiber leakage detection system, which uses the leakage water flow to cause the local optical fiber temperature change, which is displayed as a temperature mutation point. According to the location of the temperature mutation point and the severity of the temperature change, the leakage is located and the leakage size is quantitatively analyzed. The surface of the optical fiber is covered with a yarn sheath and a filter membrane. The yarn sheath greatly enhances the ability of the optical fiber to sense water seepage and improves the sensitivity of the monitoring system; the yarn sheath is wrapped with a layer of filter membrane to reduce the damage of mortar to the optical fiber during construction and improve the activity of the optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic diagram of a double novel structural joint composite water-stopping system according to an embodiment of the present invention.

[0022] Figure 2 It is a cross-sectional schematic diagram of a triple new structural joint composite water-stopping system according to an embodiment of the present invention.

[0023] Figure 3 It is a schematic cross-sectional view of a surface water-stopping system according to an embodiment of the present invention.

[0024] Figure 4 It is a three-dimensional schematic diagram of the middle layer water-stopping system of an embodiment of the present invention.

[0025] Figure 5 It is a cross-sectional schematic diagram of the outer layer water-stopping system of an embodiment of the present invention.

[0026] Figure 6 Schematic diagram of a leakage detection system according to an embodiment of the present invention.

[0027] Figure 7 It is a three-dimensional schematic diagram of the temperature-sensitive optical fiber structure according to an embodiment of the present invention.

[0028] Figure 8 It is a three-dimensional schematic diagram of a groutable rubber waterstop according to an embodiment of the present invention.

[0029] Fig. 9 It is a three-dimensional schematic diagram of the optical fiber installation distribution according to an embodiment of the present invention.

[0030] Among them: 1. Polyurea coating; 2. Elastic filler; 3. Groutable rubber water stop; 4. Left structural section; 5. Right structural section; 6. Grouting pipe; 7. Structural joint; 8. Copper water stop plate; 9. V-shaped groove; 10. Upper caulking plate; 11. Lower caulking plate; 12. Elastic protective cover; 13. Stainless steel water stop bolt; 14. Anti-filter membrane bag; 15. Rubber rod; 16. Steel plate; 17. Tire base cloth; 18. Temperature-sensitive optical fiber; 19. Metal tube; 20. Fiber mesh tube; 21. Gauze sleeve; 22. Filter membrane; 23. Laser transmitter; 24. Detection unit; 25. Surface interface groove; 26 Removable grouting joint; 27 Compression-sealing assembly; 28. Rubber ring DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Example 1

[0032] This example provides a new type of ship lock structural joint composite water-stopping system, including a double-layer water-stopping system or a three-layer water-stopping system. The double-layer water-stopping system includes a surface water-stopping system, a middle water-stopping system and a leakage detection system; the three-layer water-stopping system is an outer water-stopping system with an additional layer on the basis of the double-layer water-stopping system.

[0033] The surface water-stopping system includes polyurea coating, tire base cloth, elastic filler, V-groove, rubber rod and surface interface groove. The system alleviates the damage to the surface of the structural joint caused by ship collision by constructing the reserved surface interface groove, and enhances the surface water-stopping performance of the structural joint by using the good performance of materials such as polyurea, thereby improving the corrosion resistance and durability of the surface.

[0034] The middle layer water stop system includes groutable rubber water stop, grouting pipe, filter membrane bag, steel plate, detachable grouting joint and compression-sealing assembly. The system solves the deformation problem caused by concrete stress change, adapts to the settlement deformation of structural joints, and avoids leakage of hydraulic structures by grouting the gap between the gate chamber concrete and the rubber water stop, thus enhancing the water stop performance of the middle layer of the structural joints.

[0035] The outer waterproofing system includes copper waterproofing sheets, upper caulking plates and lower caulking plates. The system uses copper to form oxides after oxidation to prevent leakage of pressurized water and concrete contact surfaces, alleviate the expansion and contraction deformation of concrete joints and the relative deformation on both sides of the joints, and enhance the anti-oxidation and anti-compression properties of the structure.

[0036] The leakage detection system includes a temperature-sensitive optical fiber, a laser transmitter and a detection unit. The system detects the temperature change at the leakage point through the temperature-sensitive optical fiber to determine the leakage location and take timely leakage repair measures. Example 2

[0037] Reference Figure 1 to Figure 9 As shown, the present invention provides a new type of composite water-stopping system for ship lock structure joints, including a double-layer water-stopping system or a three-layer water-stopping system. The double-layer water-stopping system includes a surface water-stopping system, a middle-layer water-stopping system and a leakage detection system; the three-layer water-stopping system is an outer-layer water-stopping system provided on the basis of the double-layer water-stopping system. The present invention utilizes the synergistic effect of multiple water-stopping components and the temperature-sensitive optical fiber leakage detection method to achieve the water-stopping and anti-seepage detection requirements of ship lock structure joints.

[0038] The surface waterproofing system comprises a polyurea coating 1 , a tire base fabric 17 , an elastic filler 2 , a V-shaped groove 9 , a rubber rod 15 and a surface interface groove 25 .

[0039] Among them, the V-shaped groove 9 is located at the top of the structural joint 7, and the rubber rod 15 is installed at the bottom of the V-shaped groove 9 by hot melting. The elastic filler 2 is filled in the V-shaped groove 9 and has a flat convex arc section. The top of the elastic filler 2 is coated with a polyurea coating 1; a layer of tire base cloth 17 is compounded in the polyurea coating 1, and a certain bonding length of polyurea coating 1 is applied to the concrete interface on both sides of the surface of the V-shaped groove 9; an elastic protective cover 12 is installed on the polyurea coating 1. The two sides of the surface interface groove 25 are stepped, and the contact surface between the polyurea coating 1 and the concrete on both sides is an arc-shaped concave shape. The polyurea coating 1 is coated on the concrete of the surface interface groove 25; the length L of the surface interface groove can be determined according to the bonding performance of the polyurea coating 1 and the concrete:

[0040] ——Bond strength between polyurea and surface layer (MPa); L——bonding length between polyurea and single-side concrete (mm); ——Tensile strength of polyurea (MPa); ——Polyurea thickness (mm); d——residual length (mm).

[0041] The top of the elastic filler 2 protrudes from the V-shaped groove 9, including a main body portion located in the V-shaped groove 9 and a protruding arc portion. At the connection between the arc portion and the main body portion, the area of ​​the arc portion is slightly larger than that of the main body portion, so that the arc portion partially extends to the bottom wall of the surface interface groove.

[0042] The polyurea coating 1 is arc-shaped in the middle and has flat structures on both sides. The polyurea coating 1 is roughly Ω-shaped.

[0043] The middle layer water stop system includes a groutable rubber water stop belt, a grouting pipe, a filter membrane bag, a steel plate, a detachable grouting joint and a compression-sealing assembly.

[0044] Among them, the groutable rubber waterstop 3 is buried in the middle of the structural joint 7, and the end of the groutable rubber waterstop 3 is connected to a steel plate 16. The anti-filter type membrane bag 14 is arranged on the outside of the steel plate 16, and the end opening of the anti-filter type membrane bag 14 is sealed in the rubber at the end of the groutable rubber waterstop 3. A detachable grouting joint 26 is arranged on the end steel plate 16 of the groutable rubber waterstop 3, and the end of the detachable grouting joint 26 extends out of the anti-filter type membrane bag 14. A compression-sealing component 27 is provided at the junction of the detachable grouting joint 26 and the anti-filter type membrane bag 14 to avoid local leakage. Before the concrete is poured, a rubber hose is selected as the grouting pipe 6, and the anti-filter type membrane bag 14 is connected to the grouting pipe 6 as a whole and fixed to the steel cage. Since the hose does not affect the closure of the concrete formwork, it can be allowed to extend out of the surface of the concrete, so that there is no need to excavate the concrete before grouting. After the concrete pouring is completed, grouting construction is immediately carried out, and the expandable polymer is injected into the filter membrane bag 14 through the grouting pipe 6 at a certain pressure to fill the gap tightly.

[0045] In the illustrated embodiment, the compression-sealing assembly 27 uses a sealing rod. In other embodiments, the compression-sealing assembly 27 may use other structures as long as it can achieve a sealing effect.

[0046] The outer waterproofing system includes a copper waterproofing plate, an upper caulking plate and a lower caulking plate.

[0047] Among them, the copper water stop 8 is installed between the upper caulking plate 10 and the lower caulking plate 11, and the copper nose of the copper water stop 8 is aligned with the center line of the structural seam 7. The copper water stop 8 is installed between the upper caulking plate 10 and the lower caulking plate 11. According to the form and size of the structural seam 7, the upper caulking plate 10 and the lower caulking plate 11 are cut. When installing, the lower caulking plate 11 is installed first, and then the corresponding number of copper water stop 8 is selected according to the perimeter of the structural seam 7 for welding, and finally the upper caulking plate 10 is installed.

[0048] The leakage detection system includes a temperature-sensitive optical fiber, a laser transmitter and a detection unit.

[0049] The temperature-sensitive optical fiber includes a metal tube 19, a fiber mesh tube 20, a yarn sleeve 21 and a filter membrane 22. A plurality of rubber rings 28 are arranged inside the end of the groutable rubber waterstop 3, and the temperature-sensitive optical fiber 18 is fixed inside the rubber ring 28. The temperature-sensitive optical fiber 18 is installed below the connection between the anti-filter type membrane bag 14 and the steel plate 16, between the upper caulking plate 10 and the lower caulking plate 11, and below the groutable rubber waterstop 3. The temperature-sensitive optical fiber 18 is pre-buried with the multiple water-stopping system, and a laser transmitter 23 is installed above the ship lock wall, which is remotely connected to the monitoring system unit 24 through wireless transmission. In order to improve the accuracy of water leakage detection, the temperature-sensitive optical fiber 18 is buried in the concrete together with the groutable rubber water-stopping water-stopping belt 3. The installation position is at the connection between the anti-filtration membrane bag and the steel plate, and it is in contact with the water-stopping belt. Once leakage occurs at the seam of the bottom plate, the seepage directly passes through the temperature-sensitive optical cable vertically, causing the temperature of the temperature-sensitive optical cable to change significantly, so that it can sensitively detect whether leakage occurs and the size of the leakage. Example 3: This embodiment provides an actual construction and installation process, based on a new type of ship lock structural joint composite water stopping system described in Embodiment 2, including the following steps: Step 1: Installation of water-stop components and temperature-sensing optical fibers After the steel cage binding construction is completed, the groutable rubber waterstop 3 is installed in the middle of the structural joint 7, the grouting pipe 6 is connected to the grouting joint on the steel plate at the end of the groutable rubber waterstop 3, and the temperature-sensitive optical fiber 18 is fixed in the rubber ring on the groutable rubber waterstop 3 to form an integral module. If it is a triple waterstop structure, it is necessary to install a waterstop copper sheet 8 on the outer layer of the structural joint. According to the form and size of the structural joint 7, the upper caulking plate 10 and the lower caulking plate 11 are cut. When installing, the lower caulking plate 11 is installed first, and then the corresponding number of copper waterstop sheets 8 are selected according to the circumference of the structural joint 7 for welding, and finally the upper caulking plate 10 is installed. The copper nose of the waterstop copper sheet 8 needs to be aligned with the middle seam of the caulking plate. After the installation of the waterstop component is completed, it is calibrated to ensure that the installation and welding are in place, and then prepare for the pouring of concrete on both sides. Ensure that the waterstop component is not damaged during pouring.

[0050] Step 2: Grouting construction Before the concrete is poured, a rubber hose is used as the grouting pipe 6, and the filter type membrane bag 14 is connected to the grouting pipe 6 as a whole and fixed to the steel cage, and the grouting pipe 6 is reserved on the concrete surface. After the concrete is cured and the strength reaches the specification requirements, grouting construction is carried out, and polymer is filled into the filter type membrane bag 14 through the grouting pipe 6, so that the membrane bag is expanded to compact the gap with the concrete.

[0051] Step 3: Surface water stop system installation According to the design requirements, the surface interface groove 25 and V-shaped groove 9 of specific shapes are cast. After the concrete is poured and cured to reach the specified strength, the surface water-stopping system is installed. Before embedding the water-stopping material, the SR matching primer should be brushed on the dry concrete twice. Since the elastic filler has the characteristics of condensation and hot melting, the water-stopping material should be fully heated on site to make it in a hot-melt state before filling to improve plasticity and viscosity. The rubber rod 15 is fixed to the bottom of the V-shaped groove by using the viscosity of the filler as a buffer between the filler and the caulking plate. During construction, the top filler is designed to be Ω-shaped. After the filler is filled, the interface agent is applied to the concrete and filler on both sides of the V-shaped groove. After cooling, start applying polyurea, applying about 0.5-1mm each time, and covering a layer of tire base cloth 17 after applying 2mm. The polyurea coating is applied to a total of about 4mm. After the polyurea coating 1 is cured to reach the specified strength, install a layer of elastic protective cover 12 on the coating surface.

[0052] Step 4: Leak Detection System Installation The temperature-sensitive optical fiber 18 is connected to the detection unit, and laser is emitted to the temperature-sensitive optical fiber 18 by the laser transmitter 23. The laser is transmitted to the detection unit 24 of the lock office through the temperature-sensitive optical fiber 18 to detect the temperature change along the temperature-sensitive optical fiber, and analyze whether leakage occurs and the location of the leakage.

[0053] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite water-stopping system for ship lock structural joints, used to stop water in the structural joints between the left structural section and the right structural section. It is characterized in that Including surface water-stopping system and middle water-stopping system; The surface waterproofing system includes a polyurea coating, a tire base fabric, an elastic filler, a V-shaped groove and a rubber rod; The V-shaped groove is opened between the left structural section and the right structural section, and the bottom of the V-shaped groove is located at the top of the structural seam; the rubber rod is arranged at the bottom of the V-shaped groove; the elastic filler is filled in the V-shaped groove, and the elastic filler part protrudes outside the V-shaped groove; the polyurea coating is applied to the elastic filler and the left structural section and the right structural section, and a layer of tire base cloth is compounded in the polyurea coating; The middle layer water stop system comprises a groutable rubber water stop belt, a grouting pipe, a filter type membrane bag, a fixing plate, a detachable grouting joint and a compression-sealing assembly; The groutable rubber water stop is used to close the structural seam, and its two ends extend into the left structural section and the right structural section respectively and are connected to the fixing plate; The end opening of the anti-filter type membrane bag is sealed in the end rubber of the groutable rubber water stop belt, the detachable grouting joint is arranged on the fixed plate and its end extends out of the anti-filter type membrane bag, and a compression-sealing component is arranged at the junction of the detachable grouting joint and the anti-filter type membrane bag; One end of the grouting pipe is connected to the reverse filtration type membrane bag, and the other end extends to the outside of the left structural section or the right structural section. The grouting pipe is used to inject slurry into the reverse filtration type membrane bag to fill the gap.

2. A ship lock structural joint water stopping system according to claim 1, It is characterized in that The composite water-stopping system of the ship lock structural joint also includes an outer water-stopping system, which includes a copper water-stopping plate, an upper caulking plate and a lower caulking plate; the upper caulking plate and the lower caulking plate are respectively installed on both sides of the structural joint, the copper water-stopping plate is installed between the upper caulking plate and the lower caulking plate, and the copper water-stopping plate is located on the side of the groutable rubber water-stopping strip away from the V-groove.

3. A ship lock structural joint water stopping system according to claim 2, It is characterized in that The composite water-stopping system for the ship lock structure seam also includes a leakage detection system, which includes multiple temperature-sensitive optical fibers. The temperature-sensitive optical fibers are installed near the anti-filtration membrane bag and in contact with the groutable rubber waterstop. The temperature-sensitive optical fibers are also installed between the upper caulking plate and the lower caulking plate and are located between the copper waterstop sheet and the groutable rubber waterstop. The temperature-sensitive optical fibers are used to sense temperature changes caused by water seepage.

4. A ship lock structural joint water stopping system according to claim 3, It is characterized in that The temperature-sensitive optical fiber is sheathed with a metal tube, a fiber mesh tube, a yarn sheath and a filter membrane in sequence.

5. A ship lock structural joint water stopping system according to claim 1, It is characterized in that The surfaces of the left structural section and the right structural section are provided with surface interface grooves, the V-shaped grooves are opened on the bottom wall of the surface interface groove, arc grooves are respectively provided between the two side walls and the bottom wall of the surface interface groove, and the polyurea coating is coated on the bottom wall and the two ends extend into the arc grooves respectively.

6. A ship lock structural joint water stopping system according to claim 5, It is characterized in that The bottom wall length L of the surface interface groove satisfies the following formula: ; - Bond strength between polyurea coating and surface layer; - tensile strength of polyurea coating; - thickness of polyurea coating; d——preset surplus length.

7. A ship lock structural joint water-stopping system according to claim 1, It is characterized in that The polyurea coating is covered with an elastic protective cover, the bottom layer of the elastic protective cover has the same shape as the surface structure of the polyurea coating, and the top layer of the elastic protective cover is a plane.

8. A construction method for a ship lock structure joint water-stopping system according to any one of claims 1 to 7, It is characterized in that Includes steps: Perform steel cage binding construction, install the groutable rubber water stop (3) in the middle of the structural joint (7), connect the grouting pipe to the grouting joint on the steel plate at the end of the groutable rubber water stop, and fix the temperature sensing optical fiber in the rubber ring on the groutable rubber water stop; Pour concrete on both sides to form surface interface grooves and V-shaped grooves; After the pouring is completed and the concrete reaches the specified strength, grouting construction is carried out, and the expandable polymer is filled into the filter membrane bag through the grouting pipe; Install the rubber rod at the bottom of the V-shaped groove by hot melting or geo-nail, fill the V-shaped groove with elastic filler, and design the top filler into an arc shape during construction; Apply polyurea by hand scraping, apply 0.5-1mm each time, cover with a layer of tire base cloth after applying 2mm, and then continue to apply polyurea until the thickness of the polyurea coating reaches 4mm; After the polyurea coating reaches the specified strength through curing, a layer of elastic protective cover is installed on the coating surface.

9. The construction method according to claim 8, It is characterized in that After step (1) and before step (2), the method further includes the following steps: installing an upper caulking plate and a lower caulking plate at the reserved structural joint, and aligning the copper nose of the red copper water stop plate with the middle seam of the caulking plate.

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