Construction method for floating transportation and installation of dock gate and corresponding device

Abstract

The invention discloses a construction method for floating transportation and installation of a dock gate and a corresponding device, and belongs to the technical field of immersed tube tunnels, and the construction method comprises the following steps: S1, towing the dock gate to a point by using a tug, S2, carrying out mooring and abutting on the dock gate, S3, injecting water into a water ballast tank at the bottom of the dock gate until the dock gate sinks in place, and S4, draining water from a dock entrance after the dock gate sinks in place; construction is conducted through a dock gate consignment and installation method, the dock gate is consigned to a designated point position, and the accuracy of the dock gate installation position is guaranteed in a cabling and abutting mode. The consignment and installation method has the advantages of being high in operability, rapid and convenient to construct, wide in applicability and the like. The defect that in the prior art, floating installation or delivery of the dock gate is very difficult in actual construction is effectively overcome.

Description

Technical Field

[0001] The invention belongs to the technical field of immersed tube tunnels, and in particular relates to a construction method for floating installation of a dock door and a corresponding device. Background Art

[0002] As mentioned in the prior art solution with patent publication number "CN114459425A", in the field of immersed tube tunnel technology, dry dock construction and water storage operations are generally carried out during the construction process, so the position of the dock gate needs to be moved according to the actual situation: before moving the immersed tube, the dock gate needs to be placed at the dock mouth to form a water-blocking condition and block the outflow of seawater; after the floating of the immersed tube is completed and the drainage in the dock is completed, the dock gate needs to be moved to the dock gate storage area for storage, and the water inside and outside the dock is connected to facilitate the entry and exit of the immersed tube installation ship for floating immersed tubes.

[0003] After the dock door is prefabricated, it needs to be floated to the dock entrance for installation, and then the construction is carried out to float the dock door to the storage location in the dock. However, in actual construction, due to the limited space in the dock and the fact that the existing dock doors are generally large in size and heavy in weight, it becomes very difficult to float, install or store the dock door. Summary of the invention

[0004] In order to solve the defects in the prior art, the present invention proposes a construction method and corresponding device for floating installation of a dock door, which effectively avoids the defects in the prior art that it is very difficult to perform floating installation or storage of the dock door in actual construction.

[0005] The present invention utilizes the following technical solutions.

[0006] A construction method for floating installation of a dock door, comprising: S1, use a tugboat to tow the dock door to the point: S2, cable and support the dock door: S3, fill the ballast water tank at the bottom of the dock gate with water until the dock gate sinks into place: S4, after the dock gate sinks into place, drain the dock mouth.

[0007] Furthermore, in S1, after the dock door is shipped to the anchorage, the dock door is towed to the front edge of the dock port by tying and towing. The front edge of the dock port is the position of the towing entry point.

[0008] Further, in S1, the tugboat is a 2000 horsepower tugboat.

[0009] Furthermore, in S2, the dock door is tied to the electric winch of the dock pier by a cable, the electric winch drives the dock door to the door slot of the dock opening, and then a tugboat is used to assist the dock door in leaning against the dock door.

[0010] Further, in S2, the number of electric winches is two, the two electric winches are respectively a first electric winch and a second electric winch, the first electric winch and the second electric winch are respectively arranged on two piers located on both sides of the dock door, the two piers are respectively the first dock pier and the second dock pier, thus a cable is used to cable the dock door to the first electric winch and the second electric winch respectively arranged on the first dock pier and the second dock pier, that is, the cable is wound around the first electric winch and the second electric winch and connected to the dock door.

[0011] Furthermore, in S2, the tugboat leans against the dock door based on the leaning points where the tugboat and the dock door contact each other.

[0012] Further, in S3, the water filling valve of the ballast water tank is opened, and the ballast water tank at the bottom of the dock gate begins to be filled with water. After the dock gate gradually sinks to the preset dock gate seating position, that is, after the dock gate sinks into place, the water filling valve of the ballast tank on the dock chamber side is closed, and the water filling butterfly valve on the water filling pipe is also closed.

[0013] Further, in S3, the water filling valve of the ballast water tank is connected to the interior of the ballast water tank, and the water filling valve of the ballast water tank is arranged on the dock chamber side. The water filling pipe provided with a water filling butterfly valve is used to be connected to the water filling valve of the ballast tank at one end when filling the ballast water tank at the bottom of the dock gate, and the other end is connected to the tap water source. Therefore, the water filling valve of the ballast tank and the water filling butterfly valve of the water filling pipe can be opened to fill the ballast water tank at the bottom of the dock gate.

[0014] Further, in S3, the number of water filling valves of the ballast water tank is six.

[0015] Furthermore, in S4, the installed temporary water pump is activated to discharge the water in the dock in time, ensuring that the water level in the dock is always lower than the water level on the harbor side until the pumping of water in the dock is completed.

[0016] A corresponding device used in a construction method for floating installation of a dock door, comprising: Tugboat: The tugboat is used to push against the dock door and tow it into place. There is a push point between the tugboat and the dock door for mutual contact. A first dock pier and a second dock pier are respectively provided on both sides of the dock, and a first electric winch and a second electric winch are respectively provided on the first dock pier and the second dock pier, and the first electric winch and the second electric winch are used for winding the cable; A water pump house and a cast-in-place dock wall are respectively arranged on the back of the first dock pier and the second dock pier, and a diagonal brace located at the lower layer is arranged between the water pump house and the cast-in-place dock wall.

[0017] The beneficial effects of the present invention are that, compared with the prior art, the technical effects of the present invention include: 1. The present invention determines the predetermined installation point of the dock door in advance by means of cable and support, thereby ensuring the accuracy of the installation position of the dock door.

[0018] 2. The shipping and installation method proposed by the present invention is convenient to construct and has strong operability.

[0019] 3. The shipping and installation method proposed by the present invention is suitable for the floating installation construction of dock doors and is widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the corresponding device used in the construction method for floating installation of the dock door described in the present invention; Figure 2 It is a partial structural schematic diagram of the corresponding device used in the construction method for floating installation of the dock door described in the present invention; Figure 3 It is an overall flow chart of the construction method for floating installation of the dock door described in the present invention. DETAILED DESCRIPTION

[0021] At present, due to the limited space in the dock and the fact that the existing dock doors are generally large in size and heavy in weight, it is difficult to float and install or store the dock doors. Accordingly, the present invention provides a construction method for floating and installing the dock doors and a construction method for floating and storing the dock doors.

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely expressed in combination with the drawings in the embodiments of the present invention. The embodiments expressed in this application are only some embodiments of the present invention, not all embodiments. According to the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the protection scope of the present invention.

[0023] like Figure 3 As shown, a construction method for floating installation of a dock door according to the present invention comprises: S1, use tugboat 7 to tow dock door 6 to the point: In a preferred but non-limiting embodiment of the present invention, in S1, after the dock door 6 is shipped to the anchorage, the dock door 6 is towed to the front edge of the dock port by a tying and towing method, and the front edge of the dock port is the position of the towing entry point.

[0024] In a preferred but non-limiting embodiment of the present invention, in S1, the tugboat is a 2000 horsepower tugboat.

[0025] The dock gate refers to the watertight gate that seals the dock entrance. The dock gate bears the water pressure outside the dock when closed. The dock gate is required to be watertight and easy to open and close. The dock entrance is the part of the dock that is connected to the water area longitudinally, that is, the entrance of the dock. The structure of the dock entrance includes gate piers, horizontal bottom sills, gate grooves, etc. It is the connecting part of the waterway and the dock room, and it is also a hydraulic structure supporting the dock gate. The structure of the dock entrance depends on the geological conditions and the type of dock gate selected. Modern large docks usually set the drainage pump room and the filling valve room in the side wall of the dock entrance, and the filling corridor is set in the sill. The capacity of the filling pipe is usually greater than that of the drainage pipe, so the filling time is generally shorter than the drainage time.

[0026] In practical applications, the specific method of towing the dock door to the front of the dock port by tying and towing is: towing the dock door to the front of the dock port by using a motor boat or a tugboat 7.

[0027] S2, cable and support the dock door 6: In a preferred but non-limiting embodiment of the present invention, in S2, the dock door 6 is roped to the electric winch of the dock pier by a cable 2, and the dock door 6 is driven into the door slot of the dock entrance by the electric winch, and then the dock door 6 is supported by a tugboat 7.

[0028] In a preferred but non-limiting embodiment of the present invention, in S2, the number of electric winches is two, the two electric winches are respectively the first electric winch 3 and the second electric winch 4, the first electric winch 3 and the second electric winch 4 are respectively arranged on two dock piers located on both sides of the dock door 6, and the two dock piers are respectively the first dock pier and the second dock pier, thereby using a cable 2 to bring the dock door 6 to the first electric winch 3 and the second electric winch 4 respectively arranged on the first dock pier and the second dock pier, that is, the cable 2 is wound around the first electric winch 3 and the second electric winch 4 and connected to the dock door 6. The dock pier is a pier located at the bottom of the dock for supporting the hull. The English name of the dock pier is docking block. In a specific application scenario, the main function of the dock pier is to support the hull and ensure that the ship can be stably docked when entering the dry dock for maintenance or modification. The design and installation of the dock pier need to strictly follow the specifications of ship engineering to ensure that it can withstand the weight of the ship and various stresses that may occur during the maintenance process.

[0029] In a preferred but non-limiting embodiment of the present invention, in S2, the tugboat 7 abuts against the dock door 6 by relying on an abutment point 1 where the tugboat 7 and the dock door 6 contact each other.

[0030] S3, fill the ballast water tank at the bottom of the dock gate 6 with water until the dock gate 6 sinks into place: In a preferred but non-limiting embodiment of the present invention, in S3, the water filling valve of the ballast water tank is opened, and the ballast water tank at the bottom of the dock gate begins to be filled with water. After the dock gate 6 gradually sinks to the preset dock gate seating position, that is, after the dock gate 6 sinks into place, the water filling valve of the ballast tank on the dock chamber side is closed, and the water filling butterfly valve on the water filling pipe is also closed.

[0031] In a preferred but non-limiting embodiment of the present invention, in S3, the water injection valve of the ballast water tank is connected to the inside of the ballast water tank, and the water injection valve of the ballast water tank is arranged on the side of the dock chamber. The water injection pipe provided with a water injection butterfly valve is used to be connected with the water injection valve of the ballast tank at one end when the ballast water tank at the bottom of the dock gate 6 is filled with water, and the other end is connected with the tap water source. Thus, the water injection valve of the ballast tank and the water injection butterfly valve of the water injection pipe can be opened to fill the ballast water tank at the bottom of the dock gate 6. The dock chamber is a dry dock space surrounded by the dock bottom, dock wall and dock door. The dock chamber is the core part of the dry dock and is used for building and repairing ships. The dock chamber is composed of dock wall and dock bottom plate, and can accommodate space for repairing and building hulls. In use, the dock chamber is required to have sufficient area, depth and carrying capacity. The dock chamber is generally provided with a dock irrigation and drainage system, a boat keel pier, an anti-collision device, a pedestrian staircase, etc. The plane shape of the dock is often made into a trapezoid according to the shape of the hull, and its top surface elevation is generally flush with the shipyard floor.

[0032] In a preferred but non-limiting embodiment of the present invention, in S3, the number of the water injection valves of the ballast water tank is six.

[0033] S4, after the dock gate sinks into place, drain the dock mouth.

[0034] In general, the construction method of the floating installation of the dock door of the present invention is as follows: After the dock door is towed to the vicinity of the installation site, it is towed into the harbor by a tying and towing method, and installed by a 2000-horsepower tugboat; After the dock door is tied to the above position by a tugboat, the dock door is tied to the electric winches of the first and second dock piers by a cable, and the dock door is driven into the door slot by the electric winch, and then the tugboat is used to assist in leaning against it; Open the filling valves of the six ballast water tanks, and the ballast water tanks at the bottom of the dock door begin to fill with water. The dock door gradually sinks. After the dock door is seated, close the filling valve of the ballast tank on the dock room side, and close the filling butterfly valve; After confirming that the above operations have been completed, activate the installed temporary water pump to promptly drain the water in the dock to ensure that the water level in the dock is always lower than the water level on the harbor side until the pumping of water in the dock is completed. The overall process is as follows: S1, after the dock door is shipped to the anchorage, the dock door is towed to the front of the dock entrance by tying and towing; S2, using a cable to tie the dock door to an electric winch on the dock pier, driving the dock door into the door slot through the electric winch, and then using a tugboat to assist in leaning against the dock door; S3, open the water injection valve of the ballast water tank, and the ballast tank at the bottom of the dock door begins to be filled with water. After the dock door gradually sinks until it is seated, close the water injection valve of the ballast tank on the dock chamber side, and close the water injection butterfly valve; S4, activate the installed temporary water pump to drain the water in the dock in time, ensuring that the water level in the dock is always lower than the water level on the harbor side until the water is pumped out of the dock.

[0035] In a preferred but non-limiting embodiment of the present invention, in S4, the installed temporary water pump is activated to discharge the water in the dock in time to ensure that the water level in the dock is always lower than the water level on the harbor side until the pumping of water in the dock is completed.

[0036] like Figure 1 to Figure 2 As shown, the corresponding device used in the construction method of floating installation of a dock door according to the present invention comprises: Tugboat 7, tugboat 7 is used to push against and tow the dock door 6, and there is a push point 1 for mutual contact between the tugboat 7 and the dock door 6; A first dock pier and a second dock pier are respectively provided on both sides of the dock, and a first electric winch 3 and a second electric winch 4 are respectively provided on the first dock pier and the second dock pier, and the first electric winch 3 and the second electric winch 4 are used to wind the cable 2; A water pump house 5 and a cast-in-place dock wall 8 are respectively provided on the back of the first dock pier and the second dock pier. A diagonal brace 9 located at the lower layer is further provided between the water pump house 5 and the cast-in-place dock wall 8.

[0037] The beneficial effects of the present invention are that, compared with the prior art, the technical effects of the present invention include: 1. The present invention determines the predetermined installation point of the dock door in advance by means of cable and support, thereby ensuring the accuracy of the installation position of the dock door.

[0038] 2. The shipping and installation method proposed by the present invention is convenient to construct and has strong operability.

[0039] 3. The shipping and installation method proposed by the present invention is suitable for the floating installation construction of dock doors and is widely applicable.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not deviate from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A construction method for floating installation of a dock door, characterized in that: include: S1, use a tugboat to tow the dock door to the point: S2, cable and support the dock door: S3, fill the ballast water tank at the bottom of the dock gate with water until the dock gate sinks into place: S4, after the dock gate sinks into place, drain the dock mouth.

2. The construction method for floating installation of dock door according to claim 1, characterized in that: In S1, after the dock door is shipped to the anchorage, the dock door is towed to the front of the dock port by tying and towing, and the front of the dock port is the position of the towing entry point; In S1, the tugboat is a 2000 horsepower tugboat.

3. The construction method for floating installation of dock door according to claim 2 is characterized in that: In S2, the dock door is tied to the electric winch of the dock pier by a cable, the electric winch drives the dock door to the door slot of the dock entrance, and then a tugboat is used to assist the dock door in leaning against the dock door.

4. The construction method for floating installation of dock door according to claim 3 is characterized in that: In S2, the number of electric winches is two, the two electric winches are respectively a first electric winch and a second electric winch, the first electric winch and the second electric winch are respectively arranged on two piers located on both sides of the dock door, the two piers are respectively the first dock pier and the second dock pier, thus a cable is used to bring the dock door to the first electric winch and the second electric winch respectively arranged on the first dock pier and the second dock pier, that is, the cable is wound around the first electric winch and the second electric winch and connected to the dock door.

5. The construction method for floating installation of dock door according to claim 4, characterized in that: In S2, the tugboat leans against the dock door based on the leaning points where the tugboat and the dock door contact each other.

6. The construction method for floating installation of dock door according to claim 5, characterized in that: In S3, the water filling valve of the ballast water tank is opened, and the ballast water tank at the bottom of the dock gate begins to be filled with water. After the dock gate gradually sinks to the preset dock gate seating position, that is, after the dock gate sinks into place, the water filling valve of the ballast tank on the dock chamber side is closed, and the water filling butterfly valve on the water filling pipeline is also closed.

7. The construction method for floating installation of dock door according to claim 6, characterized in that: In S3, the filling valve of the ballast water tank is connected to the interior of the ballast water tank. The filling valve of the ballast water tank is arranged on the side of the dock chamber. The filling pipe with a filling butterfly valve is used to connect with the filling valve of the ballast tank at one end when filling the ballast water tank at the bottom of the dock gate, and connect with the tap water source at the other end. Therefore, the ballast water tank at the bottom of the dock gate can be filled with water by opening the filling valve of the ballast tank and the filling butterfly valve of the filling pipe.

8. The construction method for floating installation of dock door according to claim 7, characterized in that: In S3, the number of filling valves for the ballast water tank is six.

9. The construction method for floating installation of dock door according to claim 8, characterized in that: In S4, the installed temporary water pump is activated to discharge the water in the dock in time to ensure that the water level in the dock is always lower than the water level on the harbor side until the pumping of water in the dock is completed.

10. A corresponding device used in the construction method of floating installation of dock door, characterized in that: include: Tugboat: The tugboat is used to push against the dock door and tow it into place. There is a push point between the tugboat and the dock door for mutual contact. A first dock pier and a second dock pier are respectively provided on both sides of the dock, and a first electric winch and a second electric winch are respectively provided on the first dock pier and the second dock pier, and the first electric winch and the second electric winch are used for winding the cable; A water pump house and a cast-in-place dock wall are respectively arranged on the back of the first dock pier and the second dock pier, and a diagonal brace located at the lower layer is arranged between the water pump house and the cast-in-place dock wall.

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