Dock gate water stop structure and dry dock structure

Abstract

The utility model relates to the technical field of river-crossing immersed tunnel construction, in particular to a dock gate water stop structure which is a dry dock structure and comprises a water stop curtain, a supporting structure and an inclined strut system. The waterproof curtain is arranged at the dock entrance waterside of the dry dock; the supporting structure comprises an expanded foundation and a pipe pile structure, the expanded foundation is connected with the bottom of the waterproof curtain, the pipe pile structure is detachably connected to the expanded foundation, and the pipe pile structure abuts against the side, away from the waterside, of the waterproof curtain; the inclined strut system is used for supporting the pipe pile structure. According to the dock gate water stop structure, the dock entrance of the dry dock is effectively blocked, river channel water flow is prevented from entering the dry dock, a closed space used for dry construction is formed in the dry dock, it is guaranteed that an immersed tube is prefabricated in the closed space, the manufacturing efficiency of the immersed tube is improved, and after immersed tube construction is completed, the dock gate water stop structure is dismantled, so that the construction cost is reduced. Rapid transportation of the immersed tube is achieved, and the construction efficiency of the immersed tube is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction of river-crossing immersed tube tunnels, in particular to a dock door water-stopping structure and a dry dock structure. Background Art

[0002] To improve the urban construction transportation network, cross-river immersed tube tunnel projects and infrastructure projects have become an important part of urban cross-river tunnel projects. The main construction methods for immersed tube prefabrication include dry dock method and factory method. Among them, in the factory method, the immersed tube is generally prefabricated in the prefabrication plant first, and then the immersed tube is transferred to a water-filled dry dock for storage. During the construction of the immersed tube, the immersed tube is towed from the dry dock to the tunnel design position. The transfer from the prefabrication plant to the dry dock requires a lot of time and manpower and material resources, which affects the construction efficiency of the immersed tube. Therefore, the dry dock method is currently common in inland river tunnels. However, the dry dock method often uses caisson-type dock doors, which have poor sealing properties and cannot effectively prevent water from entering the dry dock, which easily causes river water to enter the dry dock, affecting the production of immersed tubes and extending the construction period. Utility Model Content

[0003] The purpose of the invention of the utility model is to provide a dock door water-stopping structure and a dry dock structure in view of the problem that the current dry dock method in the background technology often adopts a caisson-type dock door, which has poor sealing performance and cannot effectively prevent water, easily causing river water to flow into the dry dock, affecting the production of immersed tubes and prolonging the construction period.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A dock gate water-stopping structure, comprising a water-stopping curtain, a supporting structure and a diagonal bracing system;

[0006] The water-stop curtain is arranged at the water surface of the dry dock;

[0007] The support structure includes an expanded foundation and a pipe pile structure, wherein the expanded foundation is connected to the bottom of the water-stop curtain, the pipe pile structure is detachably connected to the expanded foundation, and the pipe pile structure abuts against a side of the water-stop curtain away from the water surface;

[0008] The diagonal bracing system is used to support the pipe pile structure.

[0009] The dock gate water-stopping structure described in the present application includes a water-stopping curtain, a supporting structure and a diagonal bracing system. The water-stopping curtain is arranged at the water surface of the dock opening to play a water-stopping role to seal the dock opening. The supporting structure includes an expanded foundation and a pipe pile structure. The expanded foundation is connected to the bottom of the water-stopping curtain, thereby enhancing the bottom waterproof performance of the water-stopping curtain. The pipe pile structure is abutted against the side of the water-stopping curtain away from the water surface, thereby effectively supporting the water-stopping curtain and playing a supporting role. The diagonal bracing system is used to support the pipe pile structure, making the pipe pile structure more firm, and then making the water-stopping curtain more stable. The dock gate water-stopping structure of the present application is effective for dry docks. The dock entrance is blocked to effectively prevent river water from entering the dry dock, so that a closed space for dry construction is formed in the dry dock, thereby ensuring that the immersed tubes are prefabricated in a closed space, greatly improving the production efficiency of the immersed tubes. At the same time, any abnormal conditions that occur during the dry construction of the immersed tubes can be easily handled. Furthermore, after the construction of the immersed tubes is completed, the dock door water-stopping structure is removed to allow the water to dry-dock, thereby achieving rapid transportation of the immersed tubes. The dock door water-stopping structure of the present application can realize the dry construction and rapid transportation of the prefabricated immersed tubes of urban cross-river channels, improve the construction efficiency of the immersed tubes, and save construction period.

[0010] As a preferred solution of the utility model, the diagonal brace system includes diagonal braces, and the diagonal braces are vertically spaced in multiple layers, one end of the diagonal brace is used to connect the pipe pile structure, and the other end of the diagonal brace is connected to the dry dock.

[0011] As a preferred solution of the utility model, the diagonal bracing system further includes a crown beam, the crown beam is connected to the top of the pipe pile structure, and the crown beam abuts against the water-stop curtain;

[0012] One end of the diagonal brace located on the top layer close to the pipe pile structure is connected to the cap beam.

[0013] As a preferred solution of the utility model, the diagonal bracing system also includes a waist beam, which is connected to the side wall of the pipe pile structure, and one end of the diagonal brace located below the top layer and close to the pipe pile structure is connected to the waist beam.

[0014] As a preferred solution of the present utility model, the diagonal bracing system further comprises a plate brace, and the plate brace is connected between the pipe pile structure and the dry dock.

[0015] As a preferred solution of the present utility model, the strength of the water-stop curtain is less than or equal to 2.5 MPa.

[0016] As a preferred solution of the utility model, the diagonal brace system further includes lattice columns, and the lattice columns are used to support the diagonal braces.

[0017] The present application also discloses a dry dock structure, including a dry dock, the dry dock including grid ground-connected walls arranged on both sides of the dock opening;

[0018] It also includes the dock gate water-stopping structure described in the present application, wherein the two sides of the water-stopping curtain are connected to the grid ground connecting walls on both sides of the dock opening, the expanded foundation is arranged at the bottom of the dock opening, and the diagonal bracing system is connected to the grid ground connecting walls.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0020] 1. The dock gate water-stopping structure described in the present application includes a water-stopping curtain, a supporting structure and a diagonal bracing system. The water-stopping curtain is arranged at the water surface of the dock entrance to play a water-stopping role to block the dock entrance. The supporting structure includes an expanded foundation and a pipe pile structure. The expanded foundation is connected to the bottom of the water-stopping curtain, thereby enhancing the bottom waterproof performance of the water-stopping curtain. The pipe pile structure is abutted against the side of the water-stopping curtain away from the water surface, thereby effectively supporting the water-stopping curtain and playing a supporting role. The diagonal bracing system is used to support the pipe pile structure, making the pipe pile structure more firm, thereby making the water-stopping curtain more stable. The dock gate water-stopping structure of the present application , the dock entrance of the dry dock is effectively blocked, the river water is effectively prevented from entering the dry dock, and a closed space for dry construction is formed in the dry dock, thereby ensuring that the immersed tubes are prefabricated in a closed space, which greatly improves the production efficiency of the immersed tubes. At the same time, abnormal conditions that occur during the dry construction of the immersed tubes can also be conveniently handled. Furthermore, after the construction of the immersed tubes is completed, the dock door water-stopping structure is removed to allow the water to dry dock, thereby realizing the rapid transportation of the immersed tubes. The dock door water-stopping structure of the present application can realize the dry construction and rapid transportation of the prefabricated immersed tubes of the urban cross-river channel, thereby improving the construction efficiency of the immersed tubes.

[0021] 2. A dry dock structure described in the present application comprises a dry dock, and the dry dock comprises grating ground walls arranged on both sides of the dock opening, and both ends of the water-stop curtain are connected to the grating ground walls on both sides of the dock opening, so that the water curtain can play a water-stopping role, and an expanded foundation is arranged at the bottom of the dock opening to ensure water-stopping at the bottom of the water-stop curtain, and the diagonal bracing system is connected to the grating ground walls, so that the diagonal bracing system can effectively support the pipe pile structure. The dry dock structure described in the present application forms a closed space for dry construction in the dry dock, thereby ensuring that the immersed tube is prefabricated in the closed space. After the construction of the immersed tube is completed, the dock door water-stopping structure is removed to allow water to dry dock, thereby realizing the rapid transportation of the immersed tube, and at the same time effectively reducing the difficulty of engineering construction, and realizing convenient handling of abnormal conditions during dry construction, and effectively avoiding underwater construction safety issues. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a plan schematic diagram of the utility model.

[0023] Figure 2 yes Figure 1 A partial enlarged view of point A.

[0024] Figure 3 It is a cross-sectional schematic diagram of the utility model.

[0025] Figure 4 yes Figure 3 A partial enlarged view of point B.

[0026] Markings in the figure: 1-waterstop curtain, 2-support structure, 21-expanded foundation, 22-pile structure, 23-backfill sand, 3-diagonal bracing system, 31-crown beam, 32-waist beam, 33-plate bracing, 34-diagonal bracing, 35-lattice column, 4-dry dock, 41-prefabrication area, 42-access channel, 43-grid ground-connected wall, 5-sunken tube, 6-retaining wall, 7-tie beam. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in combination with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0028] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0030] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0031] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0032] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0033] Example 1

[0034] like Figure 1-Figure 3 As shown, a dock door water-stopping structure described in this embodiment includes a water-stopping curtain 1, a supporting structure 2 and a diagonal bracing system 3.

[0035] The water-stop curtain 1 is arranged at the water surface of the dry dock 4;

[0036] The support structure 2 includes an enlarged foundation 21 and a pipe pile structure 22. The enlarged foundation 21 is connected to the bottom of the water-stop curtain 1. The pipe pile structure 22 is detachably connected to the enlarged foundation 21, and the pipe pile structure 22 abuts against the side of the water-stop curtain 1 away from the water surface.

[0037] The diagonal bracing system 3 is used to support the pipe pile structure 22 .

[0038] The water-stop curtain 1 is arranged at the water surface of the dock entrance of the dry dock 4 to play a water-stopping role to block the dock entrance. The supporting structure 2 includes an enlarged foundation 21 and a pipe pile structure 22. The enlarged foundation 21 is connected to the bottom of the water-stop curtain 1, thereby enhancing the bottom waterproof performance of the water-stop curtain 1. The pipe pile structure 22 is in contact with the side of the water-stop curtain 1 away from the water surface, thereby effectively supporting the water-stop curtain 1 and playing a supporting role. The diagonal bracing system 3 is used to support the pipe pile structure 22, making the pipe pile structure 22 more firm, thereby making the water-stop curtain 1 more stable. The dock door water-stopping structure of the present application effectively blocks the dock entrance of the dry dock 4. The dry dock 4 is sealed to prevent the river water from entering, so that a closed space for dry construction is formed in the dry dock 4, thereby ensuring that the immersed tube 5 is prefabricated in the closed space, greatly improving the production efficiency of the immersed tube 5, and at the same time, during the dry construction of the immersed tube 5, any abnormal conditions that occur can be easily handled. Furthermore, after the construction of the immersed tube 5 is completed, the dock door water-stopping structure is removed to allow water to enter the dry dock 4, thereby achieving rapid transportation of the immersed tube 5. The dock door water-stopping structure of the present application can realize the dry construction and rapid transportation of the prefabricated immersed tubes of the urban cross-river channel, effectively avoid water and improve the construction efficiency of the immersed tube 5.

[0039] In this implementation, if Figure 1 As shown, the enclosed space formed in the dry dock 4 refers to the dry dock prefabrication area 41, and the immersed tube 5 is manufactured in the enclosed dry dock prefabrication area 41. After the construction of the immersed tube 5 is completed, the dock door water-stopping structure is removed to allow water to enter the dry dock 4, so that the immersed tube 5 can be transported out of the dock port, thereby realizing the rapid transportation of the immersed tube 5. The dry dock 4 is provided with an inlet and outlet passage 42, which is connected with the dry dock prefabrication area 41, so that equipment, materials, etc. can be transported into the dry dock prefabrication area 41 through the inlet and outlet passage 42 during construction, so as to manufacture the immersed tube 5.

[0040] In this embodiment, the pipe pile structure 22 is detachably connected to the expanded foundation 21, and the pipe pile structure 22 can be easily removed when the dock gate water-stop structure is subsequently removed. Furthermore, the dock gate water-stop structure formed by the combination of the water-stop curtain 1, the support structure 2 and the diagonal bracing system 3 has a simple structure, and its structure can ensure both the water-stop effect and the supporting stability, and it is convenient to remove later.

[0041] In a preferred embodiment, the water-stop curtain 1 is plastically connected to the wall, so as to facilitate its later removal.

[0042] In a preferred embodiment, the strength of the water-stop curtain 1 is less than or equal to 2.5 MPa. The water-stop curtain 1 has a low strength so that it can be easily removed later.

[0043] like Figure 2-Figure 3As shown, the diagonal brace system 3 includes diagonal braces 34, which are vertically spaced in multiple layers, one end of the diagonal brace 34 is used to connect the pipe pile structure 22, and the other end of the diagonal brace 34 is connected to the dry dock 4. The pipe pile structure 22 is supported by the diagonal brace 34, making the pipe pile structure 22 more solid.

[0044] A preferred method is as follows Figure 3 As shown, a tie beam 7 is arranged on the side wall of the dry dock 4 , and one end of the diagonal brace 34 away from the water-stop curtain 1 is installed on the tie beam 7 .

[0045] like Figure 3-Figure 4 As shown, the diagonal bracing system 3 further includes a crown beam 31, which is connected to the top of the pipe pile structure 22, and the crown beam 31 abuts against the water-stop curtain 1;

[0046] One end of the diagonal brace 34 located at the top layer close to the pipe pile structure 22 is connected to the crown beam 31. The crown beam 31 connects multiple pipe pile structures 22 into one line to increase the overall stability of the pipe pile structure 22. One end of the diagonal brace 34 located at the top layer close to the pipe pile structure 22 is connected to the crown beam 31, so that the diagonal brace 34 located at the top layer supports the pipe pile structure 22 through the crown beam 31.

[0047] like Figure 4 As shown, the diagonal bracing system 3 further includes a waist beam 32 , which is connected to the side wall of the pipe pile structure 22 , and one end of the diagonal brace 34 located below the top layer and close to the pipe pile structure 22 is connected to the waist beam 32 .

[0048] By connecting multiple pipe pile structures 22 together through the waist beam 32 , one end of the diagonal brace 34 below the top layer close to the pipe pile structure 22 is connected to the waist beam 32 , so that the diagonal brace 34 below the top layer supports the pipe pile structure 22 through the waist beam 32 .

[0049] In this embodiment, the number of vertical intervals of the diagonal braces 34 is not less than 4 layers.

[0050] In a preferred manner, the diagonal braces 34 located at the same layer are divided into two groups, the row-shaped pipe pile structures 22 form an angle with the side wall at the dock, and the two groups of diagonal braces 34 are arranged at the two angles, wherein the multiple diagonal braces 34 in each group are arranged in parallel.

[0051] like Figure 2 As shown, the diagonal bracing system 3 also includes a plate brace 33, which is connected between the pipe pile structure 22 and the dry dock 4. The stability of the pipe pile structure 22 is further increased by arranging the plate brace 33. Furthermore, the plate brace 33 is connected to the side wall of the dock opening of the dry dock 4.

[0052] In this embodiment, the plate support 33 and the diagonal support 34 are located on the same horizontal plane.

[0053] like Figure 3As shown, the support structure 2 also includes backfill sand 23, which is filled inside the pipe pile structure 22 to increase the weight of the pipe pile structure 22. During subsequent demolition, the pipe pile structure 22 and the expanded foundation 21 are separated, and the backfill sand 23 is released from the inside of the pipe pile structure 22 to the outside, so as to facilitate the lifting of the pipe pile structure 22.

[0054] In a preferred embodiment, the diagonal brace system 3 further comprises a lattice column 35, which is used to support the diagonal brace 34. The lattice column 35 is installed at the bottom of the dock, and the top of the lattice column 35 is connected to the diagonal brace 34.

[0055] A preferred method is as follows Figure 4 As shown, it also includes a retaining wall 6, which is connected to the top surface of the crown beam 31. By arranging the retaining wall 6 on the top surface of the crown beam 31, the retaining wall 6 can further prevent the river water from flowing into the dry dock 4.

[0056] Example 2

[0057] like Figure 1-Figure 4 As shown, based on Example 1, the present application further discloses a dry dock structure, including a dry dock 4, wherein the dry dock 4 includes a grid ground-connected wall 43 arranged on both sides of the dock opening;

[0058] Both sides of the water-stop curtain 1 are connected to the grid ground-connecting walls 43 on both sides of the dock opening, the expanded foundation 21 is arranged at the bottom of the dock opening, and the diagonal bracing system 3 is connected to the grid ground-connecting walls 43 .

[0059] In this embodiment, both ends of the water-stop curtain 1 are connected to the grid ground connecting wall 43 on both sides of the dock, and the lower end of the water-stop curtain 1 is installed at the bottom of the dock. The lower end of the water-stop curtain 1 is connected to the enlarged foundation 21 set at the bottom of the dock, thereby increasing and enhancing the bottom waterproof performance of the water-stop curtain 1, wherein the grid ground connecting wall 43 is the side wall of the dock.

[0060] In a preferred manner, the pipe pile structure 22 is arranged in rows in the dock and located between the grating ground walls 43 on both sides of the dock. The row of pipe pile structures 22 forms an angle with the grating ground walls 43 at the dock, and the diagonal braces 34 are divided into two groups. The two groups of diagonal braces 34 are arranged at two angles, wherein the multiple diagonal braces 34 in each group are arranged in parallel.

[0061] In a preferred manner, the crown beam 31 is connected to the top of the pipe pile structure 22, and the crown beam 31 is abutted against the water-stop curtain 1, and both ends of the crown beam 31 are respectively connected to the grid ground connection wall 43 on both sides of the dock to ensure the stability of the support.

[0062] In a preferred embodiment, the waist beam 32 is connected to the side wall of the pipe pile structure 22, and the two ends of the waist beam 32 are respectively connected to the grid ground connecting wall 43 on both sides of the dock to ensure the stability of the support;

[0063] In a preferred embodiment, one end of the diagonal brace 34 is connected to the pipe pile structure 22, and the other end of the diagonal brace 34 is connected to the grid ground connecting wall 43;

[0064] In a preferred manner, the plate support 33 is connected between the pipe pile structure 22 and the grid ground wall 43. In the present embodiment, the plate support 33 is in the shape of a right triangle, that is, one right-angled side of the plate support 33 is connected to the pipe pile structure 22, and the other right-angled side of the plate support 33 is connected to the grid ground wall 43.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dock door water-stopping structure, characterized in that: It comprises a water-stop curtain (1), a supporting structure (2) and a diagonal bracing system (3); The water-stop curtain (1) is arranged at the water surface of the dry dock (4); The support structure (2) comprises an enlarged foundation (21) and a pipe pile structure (22), wherein the enlarged foundation (21) is connected to the bottom of the water-stop curtain (1), the pipe pile structure (22) is detachably connected to the enlarged foundation (21), and the pipe pile structure (22) abuts against a side of the water-stop curtain (1) away from the water surface; The diagonal bracing system (3) is used to support the pipe pile structure (22).

2. A dock door water-stopping structure according to claim 1, characterized in that: The diagonal brace system (3) comprises diagonal braces (34), wherein the diagonal braces (34) are vertically spaced in multiple layers, one end of the diagonal brace (34) is used to connect to the pipe pile structure (22), and the other end of the diagonal brace (34) is connected to the dry dock (4).

3. A dock door water-stopping structure according to claim 2, characterized in that: The diagonal bracing system (3) further comprises a crown beam (31), wherein the crown beam (31) is connected to the top of the pipe pile structure (22), and the crown beam (31) is in contact with the water-stop curtain (1); One end of the diagonal brace (34) located on the top layer and close to the pipe pile structure (22) is connected to the crown beam (31).

4. A dock door water-stopping structure according to claim 3, characterized in that: The diagonal bracing system (3) further comprises a waist beam (32), wherein the waist beam (32) is connected to the side wall of the pipe pile structure (22), and the diagonal bracing (34) located below the top layer is connected to the waist beam (32) at one end close to the pipe pile structure (22).

5. A dock door water-stopping structure according to claim 4, characterized in that: The diagonal bracing system (3) further comprises a plate brace (33), wherein the plate brace (33) is connected between the pipe pile structure (22) and the dry dock (4).

6. A dock door water-stopping structure according to claim 1, characterized in that: The water-stop curtain (1) is a plastically connected wall.

7. A dock door water-stopping structure according to claim 6, characterized in that: The strength of the water-stop curtain (1) is less than or equal to 2.5 MPa.

8. The dock door water-stop structure according to claim 1, characterized in that: The supporting structure (2) further comprises backfill sand (23), wherein the backfill sand (23) is filled inside the pipe pile structure (22).

9. The dock door water-stop structure according to claim 1, characterized in that: The diagonal bracing system (3) further comprises a lattice column (35), wherein the lattice column (35) is used to support the diagonal brace (34).

10. A dry dock structure, characterized in that: The dry dock (4) comprises a grid-type ground-connected wall (43) arranged on both sides of the dock opening; It also includes a dock gate waterproof structure as described in any one of claims 1 to 9, wherein both sides of the waterproof curtain (1) are connected to the grid ground connecting walls (43) on both sides of the dock opening, the expanded foundation (21) is arranged at the bottom of the dock opening, and the diagonal bracing system (3) is connected to the grid ground connecting walls (43).

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