A method for rapid construction of a dock

Abstract

The application relates to a method for rapidly building a dock, which comprises the following steps: S01, preparation before building; S02, loading a first aft half ship and a second aft half ship in the dock to complete half ship loading; S03, opening the dock gate to let water in; S04, taking the second aft half ship out of the dock and parking the second aft half ship at a wharf; S05, closing the dock gate, pumping water and washing mud, and performing whole ship building on the first aft half ship; S06, improving the half ship integrity state during the period when the second aft half ship is parked at the wharf; S07, parking the first ship at the wharf after the first ship is taken out of the dock, and performing whole ship building on the second aft half ship; and S08, realizing whole ship building and taking the second ship out of the dock in a dock period. The application has the effects of fully utilizing dock resources, compressing the dock period and realizing the control of shipbuilding cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of civil marine product dock construction, in particular to a dock rapid construction method. BACKGROUND

[0002] Large shipyards invest a lot of money to build a dock, and then a huge gantry crane is built on the dock. The ship body segments are lifted by the gantry crane and spliced in the dock. After the ship body segments are spliced, the sea water is introduced into the dock, the ship body floats up, and finally the ship is pulled out of the dock. At this time, the dock can be emptied again to build the next ship. SUMMARY

[0003] In order to fully utilize the dock resources, compress the dock period, and control the shipbuilding cost, the present application provides a dock rapid construction method.

[0004] The dock rapid construction method provided by the present application adopts the following technical scheme:

[0005] A dock rapid construction method comprises the following steps:

[0006] S01: preparation work before construction;

[0007] S02: 1# aft half ship and 2# aft half ship complete half ship loading in the dock;

[0008] S03: dock gate is opened to let water in;

[0009] S04: 2# aft half ship is pulled out of the dock and parked at the wharf;

[0010] S05: the dock gate is closed, water is pumped out, and mud is flushed, and the 1# aft half ship is constructed as a whole;

[0011] S06: during the period when the 2# aft half ship is parked at the wharf, the integrity of the half ship is improved;

[0012] S07: 1# ship is pulled out of the dock and parked at the wharf, and 2# aft half ship is pulled into the dock for whole ship construction;

[0013] S08: 2# ship is constructed and pulled out of the dock within the dock period.

[0014] Through the above technical scheme, the key main line work of the engine room is completed in the concentrated period, and then one half ship is parked at the wharf for construction by floating, and the other half ship is constructed as a whole. After being pulled out or floated, the half ship parked at the wharf is pulled into the dock for whole ship construction. The two ships can be constructed simultaneously, the main line work of the engine room of the two ships is completed at the same time, so as to shorten the overall dock period.

[0015] Optionally, in S01, the 1# aft half ship and the 2# aft half ship are preferably the same type of hull.

[0016] By adopting the above technical scheme, the same type of hull is built synchronously, so that the original half ship is placed on the pier, and the pier is re-arranged.

[0017] Optionally, in S01, the 1# aft half ship and the 2# aft half ship are preferably the same type of hull.

[0018] Optionally, in S04, the 1# aft half ship is moved and placed on the 2# aft half ship position.

[0019] By adopting the above technical scheme, the 1# aft half ship is moved and placed on the 2# aft half ship position, so that the upper building and the main engine are all transported back to the factory from outside, and the engine room is close to the dock entrance, which can reduce the hoisting time of the gantry crane.

[0020] Optionally, the 1# ship is arranged close to the dock entrance, and the bow is directed towards the land side.

[0021] Optionally, in S05, the structure, tightness and painting work are completed to meet the conditions for leaving the dock and improve the integrity of the whole ship;

[0022] Optionally, the integrity state includes performing box column and cable stanchion structure welding, aft half ship cabin tightness and strength test, hatch cover accessory, half ship pipe and service passage cable laying, ballast tank pipe accessory inspection, pipe system tightness inspection and other subsequent outfitting work.

[0023] Optionally, the 1# ship is arranged close to the dock entrance, and the bow is directed towards the land side.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The key main line work in the engine room is completed in a concentrated period, and then one half ship is docked at the pier for construction, while the other half ship is constructed as a whole, after leaving the dock or being floated, the half ship docked at the pier is docked for whole ship construction, which can construct two hulls synchronously, complete the main line work of the engine room of the two ships in the same time period, and shorten the overall dock period.

[0026] 2. During the period when the 2# aft half ship is docked at the pier, box column and cable stanchion structure welding, aft half ship cabin tightness and strength test, hatch cover accessory, half ship pipe and service passage cable laying, ballast tank pipe accessory inspection, pipe system tightness inspection and other subsequent outfitting work can be performed, which lays a good foundation for improving the integrity of the whole ship leaving the dock; BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1is a flowchart of a ship dock rapid construction method in the embodiments of the present application. DETAILED DESCRIPTION

[0028] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood, the following will further describe the present application with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other manners different from those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0030] The following will be described in detail with reference to the accompanying drawings. Figure 1 The present application will be further described in detail.

[0031] Embodiments of the present application disclose a ship dock rapid construction method. Referring to Figure 1 A ship dock rapid construction method includes the following steps:

[0032] S01: preparation before construction, including:

[0033] No. ship construction cycle arrangement, meeting the requirements of starting, production, construction and on-time delivery, according to the planned delivery date, the starting date is deduced, considering the factors of early preparation, material procurement, etc. The ship construction process is divided into multiple stages, including welding, equipment installation, painting, etc. Using project management tools, detailed production plans are developed to ensure that each stage has enough time to complete.

[0034] Considering the need for in-situ half-ship landing and the ability of the dock to meet the half-ship floating state water requirement, it is suggested to promote the same type of ship to avoid re-arrangement of the dock pier; the half-ship loading state needs to meet the length and width requirements of the dock, according to the length and width requirements of the dock, a suitable loading method is designed to ensure that the position and attitude of the half-ship in the dock meet the requirements; the dock can meet the half-ship floating state water requirement; the matching between the half-ship integrity state requirement and the dock cycle; the half-ship wharf berthing with cable meets the safety requirements, the cable system designed for the half-ship wharf berthing meets the safety standards, ensuring the stability and safety of the ship during berthing;

[0035] S02: 1# aft half ship and 2# aft half ship complete half ship loading during construction period; before floating, structural welding state inspection and safety inspection are carried out on 1# aft half ship and 2# aft half ship (water filling state: ensure that the water tank, oil tank and other equipment inside the ship body have been filled or emptied to meet the requirements of floating. Cabling: check the connection of the ship body and the cable on the dock to ensure the firmness and safety of the cable. Pipe: check the installation and connection of the ship's pipeline system to ensure the integrity and sealing of the pipeline. Stern shaft sealing: check the sealing device of the stern shaft to ensure the sealing of the water line and oil line to prevent water and oil leakage into the ship body, etc.);

[0036] S03: open the dock gate to fill water, at this time 1# aft half ship and 2# aft half ship are in the dock, and 1# aft half ship and 2# aft half ship are floated;

[0037] S04: 2# aft half ship is docked at the dock, and 1# aft half ship is moved to the position of 2# aft half ship;

[0038] The moving and landing of the dock mainly considers two factors: the overall arrangement and the selection of the engine room position.

[0039] Firstly, the overall arrangement is close to the dock entrance, and the bow is towards the land side, which is to meet the requirements of the dock bottom load. This is because during the construction of the dock, maintenance, repair or modification of the ship is needed, and the weight of the ship needs to be evenly distributed on the dock bottom to ensure the carrying capacity of the dock bottom. By placing the overall arrangement close to the dock entrance, the weight of the ship is concentrated in the carrying range of the dock bottom, meeting the requirements of the dock bottom load.

[0040] Secondly, the upper building and the main engine are usually transported back to the factory by external ships, so placing the engine room close to the dock entrance helps to reduce the time-consuming of the gantry crane lifting. By placing the engine room close to the dock entrance, the distance of transporting the internal equipment of the ship can be shortened, reducing the time and cost of equipment transportation. At the same time, reducing the time-consuming of the gantry crane lifting can improve the construction efficiency and save the construction period and human resources.

[0041] Overall, when considering the overall arrangement and the engine room position, the moving and landing of the dock focuses on the requirements of the dock bottom load and the efficiency of equipment transportation. Such construction method makes the use of the dock more flexible and efficient, improving the construction efficiency and economic benefits.

[0042] S05: close the dock gate, pump water and flush mud, carry out overall construction on 1# aft half ship, complete the lifting of main engine, upper building, etc., complete the structure, tightness and painting work, meet the conditions of out of dock and improve the overall integrity state;

[0043] The integrity state is an important part of the shipbuilding process, including multiple subsequent outfitting work, such as box column and bollard structure welding, stern half ship cabin tightness and strength test, hatch cover accessory installation, half ship pipe and service passage cable laying, ballast tank pipe accessory inspection and pipe system tightness inspection, etc.

[0044] Firstly, box column and bollard structure welding refers to the welding process treatment of the box column and bollard of the ship to ensure its tight, firm and reliable connection. This is to provide the structural strength and stability of the ship to cope with the harsh marine environment and long-term operation.

[0045] Secondly, the stern half ship cabin tightness and strength test is to verify the sealing performance and structural strength of the cabin under water working environment. Through water pressure test and structural acceptance, it can ensure that the cabin can be waterproof, pressure-resistant and meet the navigation requirements.

[0046] The installation of hatch cover accessories involves the accessories and sealing devices of the hatch cover to ensure its normal use and sealing performance. The half ship pipe and service passage cable laying is to lay the pipelines and cables inside the ship to meet the connection requirements of different systems and equipment.

[0047] The ballast tank pipe accessory inspection is to check and accept the pipe system and its accessories of the ballast tank to ensure its normal operation and compliance with relevant standards and specifications. The pipe system tightness inspection is to test the sealing performance of the entire pipe system to confirm the reliability and sealing performance of the pipe connection.

[0048] These subsequent outfitting work plays an important role in the shipbuilding process, which ensures the integrity, safety and performance of the ship. Only after these work is completed and accepted, the ship can be formally put into use and meet the navigation requirements. Therefore, the integrity state is crucial for the quality and reliability of shipbuilding.

[0049] S06: 2# stern half ship during the period of docking, improve the integrity of the half ship;

[0050] S07: 1# ship out of the dock and docked for dock mooring test, 2# stern half ship into the dock for whole ship construction;

[0051] S08: 2# ship realizes whole ship construction and launching during the dock period.

[0052] The implementation principle of the ship dock rapid construction method of the embodiment of the application is: through the time utilization during the construction of 1# stern half ship and 2# stern half ship, the construction of the two ship bodies can be synchronized, and the main line work of the engine room of the two ships can be completed in the same time period, so as to shorten the overall dock period.

[0053] In the present application, the term "plurality" refers to at least two or at least two more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connection", "fixing" and the like should be interpreted broadly, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connecting" can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A method of rapid construction of a dock, characterised in that: The method comprises the following steps: S01: preparation before building; S02: 1# and 2# aft half ships are completed in the ship dock; S03: the ship dock is opened and water is filled in; S04: 2# aft half ship is docked on the wharf; S05: the ship dock is closed, water is pumped out and mud is flushed, and 1# ship is built; S06: the integrity of 2# aft half ship is improved during the period when 2# aft half ship is docked on the wharf; S07: 1# ship is docked on the wharf, and 2# aft half ship is built; S08: 2# ship is built and docked in the ship dock; In S05, the structure, tightness and painting work are completed, the condition of being docked is met, and the integrity of the ship is improved; The integrity state comprises the following steps: box column and cable stanchion structure welding, cabin tightness and strength test, hatch cover accessory, half ship pipe and service passage cable laying, ballast tank pipe accessory inspection, pipe system tightness inspection and outfitting work.

2. The method of claim 1, wherein: In S01, 1# and 2# aft half ships are the same type of ship body.

3. The method of claim 1, wherein: In S01, the structure welding state and safety inspection of 1# and 2# aft half ships are checked before being floated.

4. The method of claim 1, wherein: In S04, 1# aft half ship is moved to the position of 2# aft half ship.

5. The method of claim 4, wherein: The 1# ship is arranged near the dock entrance, and the bow is directed to the land side.

6. The method of claim 1, wherein: In S07, the wharf mooring test is carried out during the period when 1# ship is docked on the wharf.

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