Multi-ship mooring arrangement structure

Abstract

The invention relates to a multi-ship mooring arrangement structure. A first broadside of a transfer barge is in mooring connection with a broadside of an ocean bulk cargo ship, and a second broadside of the transfer barge is in mooring connection with a cargo barge; a first tail cable and a first tail winch device are arranged at the tail of the transfer barge, a first transverse cable and a first midship winch device are arranged in the middle of the first broadside, and a first bow cable and a first bow winch device are arranged at the bow of the first broadside; a second tail cable and a corresponding second tail winch device are arranged at the tail part of a second broadside of the transfer barge, a second transverse cable and a corresponding second midship winch device are arranged in the middle of the second broadside, and a second bow cable and a corresponding second bow winch device are arranged at the bow part of the second broadside; the breaking forces of the first tail cable and the second tail cable, the first transverse cable and the second transverse cable, and the first bow cable and the second bow cable are different in design; the first tail winch device and the second tail winch device, the first midship winch device and the second midship winch device, and the first bow winch device and the second bow winch device are different in quality design.

Description

Technical Field

[0001] The invention relates to a multi-ship mooring arrangement structure and belongs to the technical field of ship mooring arrangement. Background Art

[0002] Due to the limitation of draft, large ocean-going bulk carriers cannot directly berth at certain target terminals due to cargo transshipment. Many major mineral resource exporting countries can only use small cargo barges to transport inland mineral resources to the coast via inland rivers, and then use transshipment barges to transfer the resources on the small cargo barges to large bulk carriers. In this operation, there is a condition where the cargo on two cargo barges is transferred to the bulk carrier at the same time. In view of the special operating conditions of the transshipment barge, its mooring function has obvious asymmetry.

[0003] At present, conventional ship mooring design mainly adopts the symmetrical design concept:

[0004] 1) According to the basic information of the ship and the environmental conditions, the ship's mooring arrangement structure is designed symmetrically with reference to the number of outfitting. The number of mooring equipment on the left and right sides is equal, the capacity is the same, and they are arranged approximately symmetrically.

[0005] 2) According to the environmental conditions of ship-to-ship or ship-to-shore mooring, a direct calculation method is used to symmetrically design the mooring arrangement structure based on the most dangerous side force. Generally, the number of mooring equipment on the left and right sides is equal and the capacity is the same.

[0006] In view of the special asymmetric functionality of the transfer barge, the existing technology has the following deficiencies:

[0007] 1) The ship mooring arrangement structure is designed symmetrically according to the number of ship outfitting: The actual application scenario of ship-to-ship mooring is not considered. The cable on one side of the moored ship needs to bear the mooring force of the transfer barge and the cargo barge at the same time. The mooring arrangement structure designed according to the number of transfer barge outfitting cannot guarantee the safety and reliability of the mooring under the extreme environmental conditions of multiple ships moored in actual operations.

[0008] 2) According to the direct calculation of ship-to-ship environmental conditions, the ship mooring layout structure is symmetrically designed: the cable, winch and related mooring equipment on the side of the cargo barge are too large, the economy is poor, the deck utilization rate is low, and the mooring equipment layout is not friendly to the mooring of small cargo barges. Summary of the invention

[0009] To address the above-mentioned deficiencies, the present invention aims to provide a multi-ship mooring arrangement structure based on a transfer barge. According to the mooring force characteristics of actual operating conditions, the port and starboard mooring arrangement structures are designed separately. On the basis of ensuring the safe and reliable ship-to-ship mooring on both sides, the ship investment cost is reduced, the empty ship weight is reduced, the mooring compatibility and rationality are improved, the deck utilization rate is increased, and the economy is improved.

[0010] The present invention adopts the following technical solutions:

[0011] A multi-ship mooring arrangement structure comprises a transshipment barge, an ocean-going bulk carrier and a cargo barge, wherein the first side of the transshipment barge is moored to the side of the ocean-going bulk carrier, and the second side is moored to the cargo barge; the first side of the transshipment barge is moored to the ocean-going bulk carrier: the stern of the transshipment barge is provided with a first stern cable 1 and a corresponding first stern winch device, the middle of the first side is provided with a first transverse cable 2 and a corresponding first midship winch device, and the bow of the first side is provided with a first bow cable 3 and a corresponding first bow winch device; the second side of the transshipment barge is moored to two cargo barges arranged in front and behind: the stern of the second side is provided with a second stern cable 4 and a corresponding second stern winch device A second transverse cable 5 and a corresponding second midship winch device are provided in the middle of the second side, and a second bow cable 7 and a corresponding second bow winch device are provided at the bow of the second side; there are two groups of the second transverse cable 5 and the corresponding second midship winch device, one of which is used for mooring connection with the stern of the first cargo barge, and the other is used for mooring connection with the stern of the second cargo barge; the first tail cable 1 and the second tail cable 4, the first transverse cable 2 and the second transverse cable 5, the first bow cable 3 and the second bow cable 7 have different breaking force designs; the first tail winch device and the second tail winch device, the first midship winch device and the second midship winch device, the first bow winch device and the second bow winch device have different quality designs.

[0012] Preferably, the two cargo barges are arranged stern to stern on the second side of the transfer barge.

[0013] Preferably, the first side of the transfer barge is the port side, and the second side of the transfer barge is the starboard side.

[0014] Preferably, the first bow cable 3 and the second bow cable 7 are symmetrically connected at the stern of the transfer barge.

[0015] Furthermore, the first tail cable 1 and the second tail cable 4 are symmetrically connected to the bow of the transfer barge.

[0016] The beneficial effects of the present invention are:

[0017] 1) A mooring arrangement scheme for a transshipment barge with ships berthed on both sides is provided, in which two cargo barges are berthed on one side and an ocean-going bulk carrier is berthed on the other side, and an asymmetric mooring arrangement structure scheme and design ideas are provided;

[0018] 2) Since the force required for mooring with the bulk cargo side of an ocean-going vessel is relatively large, while the force required for mooring with the cargo barge side is relatively small, and when mooring with the cargo barge side, mooring with two cargo barges arranged in front and behind can be achieved at the same time, the mooring structure is designed specifically to avoid designing according to the highest capacity, which leads to the problem of excessive capacity of some winches and related mooring equipment, poor economy, and low deck utilization.

[0019] 3) Good economy, greatly reducing the empty ship weight, saving shipbuilding costs and enhancing deck utilization;

[0020] 4) According to the different functions of the left and right sides, the corresponding mooring structure is matched, with good compatibility and more reasonable layout;

[0021] 5) High safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic plan view of the multi-vessel mooring arrangement structure of the present invention.

[0023] Figure 2 It is a plan view of the bow mooring arrangement structure.

[0024] Figure 3 It is a plan view of the midship mooring arrangement structure.

[0025] Figure 4 It is a plan view of the stern mooring arrangement structure.

[0026] In the figure, 1. first tail cable, 2. first transverse cable / reverse cable, 3. first bow cable, 4. second tail cable, 5. second transverse cable, 6. second transverse cable', 7. second bow cable. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] In order to solve the deficiencies in the prior art, this embodiment provides a multi-ship mooring arrangement structure based on a transfer barge. According to the actual working conditions, the port and starboard mooring arrangement structures are independently designed for adaptability. On the basis of ensuring the safety and reliability of ship-to-ship mooring on both sides, the ship investment cost is reduced, the empty ship weight is reduced, and the mooring compatibility and rationality are improved. The specific mooring arrangement structure is as follows: Figure 1 shown.

[0029] See also Figure 1 This embodiment proposes a multi-ship mooring arrangement structure based on a transfer barge, which is designed according to the size and number of ships berthed on the port and starboard sides, and optimizes the mooring arrangement. It has greater economy and compatibility while ensuring safe and reliable mooring. Take a transfer barge that berths an ocean-going bulk carrier on the port side and two cargo barges on the starboard side as an example. In order to achieve the mooring arrangement of "2 bow cables-2 transverse cables / reverse cables-2 stern cables" for the transfer barge to berth the bulk carrier on the port side, two barges are berthed on the starboard side at the same time to meet the mooring arrangement of "2 bow cables-2 stern cables" for each barge. The specific mooring arrangement structure of the transfer barge is composed of the following:

[0030] On the basis of considering the mooring force of the transfer barge and the starboard berthing barge, a large-capacity double-drum combined anchor winch is horizontally set on the port side of the bow, corresponding to the two fairleads at the bow and one fairlead on the port side and the clevis roller, providing two bow cables for the transfer barge when berthing the bulk carrier. In addition, two sets of high-capacity mooring equipment with cable piles are set on the port side as backup to facilitate the mooring of the bulk carrier winch under special circumstances; while in the design of the mooring on the starboard side of the bow, the mooring force of the two cargo barges berthing the transfer barge needs to be considered. Only a small-capacity double-drum combined anchor winch is required, corresponding to the two fairleads at the bow and one fairlead on the starboard side and the clevis roller, providing two bow cables for the 1# cargo barge when berthing the 1# cargo barge at the bow. The detailed mooring arrangement structure of the bow is as follows: Figure 2 In addition, two sets of mooring equipment with equal capacity are arranged on the starboard side to facilitate connection with the mooring bollard of the 1# cargo barge for fastening in special circumstances. Figure 2 As shown. Figure 2 It can also be seen that the working loads of the double-drum anchor winches on the port and starboard sides are different, and the design loads of the roller guides and bollards are also different.

[0031] Similarly, two large-capacity single-drum winches and their mooring equipment are set on the port side amidships to complete the two transverse / reverse cables when the bulk carrier is berthing. In addition, four sets of mooring equipment with cable piles are equipped to achieve the mooring of the bulk carrier winch out in special circumstances; two small-capacity double-drum winches and mooring equipment are set on the starboard side amidships to complete the mooring of the two stern cables when the 1# barge and the 2# barge are berthing respectively. In addition, four sets of mooring equipment with cable piles are equipped as backup. In special circumstances, the mooring is completed through the cable piles of the cargo barge. The detailed mooring arrangement structure amidships is as follows: Figure 3 As shown. Figure 3 It can also be seen that

[0032] Similarly, a large-capacity double-drum winch and mooring equipment are arranged on the port side of the stern, in an inclined arrangement, corresponding to the two stern fairleads and a port fairlead and a clevis fairlead roller, to complete the mooring of two stern cables when berthing a bulk carrier. In addition, two sets of mooring equipment with mooring bollards of equal capacity are arranged on the port side, so as to facilitate the mooring of the bulk carrier winch cables under special circumstances; a small-capacity double-drum winch and mooring equipment are arranged on the starboard side of the stern, in an inclined arrangement, corresponding to the two stern fairleads and a starboard fairlead and a clevis fairlead roller, to complete the mooring of the two bow cables of the 2# cargo barge when berthing the cargo barge. In addition, two sets of mooring bollards with equal capacity are arranged as backup, and in special circumstances, the mooring is completed through the mooring bollards of the cargo barge. The detailed stern mooring arrangement structure is as follows: Figure 4 shown.

[0033] For details, see Figure 1-Figure 4A multi-ship mooring arrangement structure includes a transshipment barge, an ocean-going bulk carrier, and a cargo barge. The first side of the transshipment barge is moored to the side of the ocean-going bulk carrier, and the second side is moored to the cargo barge; the first side of the transshipment barge is moored to the ocean-going bulk carrier: the stern of the transshipment barge is provided with a first stern cable 1 and a corresponding first stern winch device, the middle of the first side is provided with a first transverse cable 2 and a corresponding first midship winch device, and the bow of the first side is provided with a first bow cable 3 and a corresponding first bow winch device; the second side of the transshipment barge is moored to two cargo barges arranged in front and behind: the stern of the second side is provided with a second stern cable 4 and a corresponding second stern winch device A second transverse cable 5 and a corresponding second midship winch device are provided in the middle of the second side, and a second bow cable 7 and a corresponding second bow winch device are provided at the bow of the second side; there are two groups of the second transverse cable 5 and the corresponding second midship winch device, one of which is used for mooring connection with the stern of the first cargo barge, and the other is used for mooring connection with the stern of the second cargo barge; the first stern cable 1 and the second stern cable 4, the first transverse cable 2 and the second transverse cable 5, the first bow cable 3 and the second bow cable 7 have different breaking force designs; the first stern winch device and the second stern winch device, the first midship winch device and the second midship winch device, the first bow winch device and the second bow winch device have different quality designs.

[0034] See also Figure 1 The two cargo barges are arranged stern to stern on the second side of the transfer barge.

[0035] See also Figure 1 The first side of the transfer barge is the port side, and the second side of the transfer barge is the starboard side.

[0036] See also Figure 1 and 4 The first bow cable 3 and the second bow cable 7 are symmetrically connected at the stern of the transfer barge.

[0037] See also Figure 1 and 2 The first tail cable 1 and the second tail cable 4 are symmetrically connected to the bow of the transfer barge.

[0038] The present invention provides a mooring arrangement scheme for a transfer barge with ships moored on both sides, wherein an asymmetric mooring arrangement structure scheme and design ideas are provided in which two cargo barges are moored on one side and an ocean-going bulk carrier is moored on the other side; since the force required for mooring with the bulk cargo side of the ocean-going ship is relatively large, while the force required for mooring with the cargo barge side is relatively small, and when mooring with the cargo barge side, mooring with two cargo barges arranged front and back can be achieved at the same time, the mooring structure is designed in a targeted manner, thereby avoiding the problem that all designs are designed according to the highest capacity, resulting in excessive capacity of some winches and related mooring equipment, poor economy, and low deck utilization rate; the economy is good, the empty ship weight is greatly reduced, the shipbuilding cost is saved, and the deck utilization rate is enhanced; the corresponding mooring structure is matched according to the different functionality of the port and starboard, the compatibility is good, and the layout is more reasonable; the safety and reliability are high.

[0039] The above are preferred embodiments of the present invention. A person skilled in the art may make various changes or improvements on this basis. Without departing from the general concept of the present invention, these changes or improvements are within the scope of protection required by the present invention.

Claims

1. A multi-vessel mooring arrangement structure, comprising a transshipment barge, an ocean-going bulk carrier, and a cargo barge, wherein a first side of the transshipment barge is moored to a side of the ocean-going bulk carrier, and a second side of the transshipment barge is moored to the cargo barge; characterized in that: The first side of the transshipment barge is moored to the ocean-going bulk carrier: the stern of the transshipment barge is provided with a first stern cable (1) and a corresponding first stern winch device, the middle of the first side is provided with a first transverse cable (2) and a corresponding first midship winch device, and the bow of the first side is provided with a first bow cable (3) and a corresponding first bow winch device; The second side of the transfer barge is moored to two cargo barges arranged in front and behind: the stern of the second side is provided with a second stern cable (4) and a corresponding second stern winch device, the middle of the second side is provided with a second transverse cable (5) and a corresponding second midship winch device, and the bow of the second side is provided with a second bow cable (7) and a corresponding second bow winch device; There are two sets of the second transverse cable (5) and the corresponding second midship winch device, one for connecting to the stern mooring of the first cargo barge, and the other for connecting to the stern mooring of the second cargo barge; The first tail cable (1) and the second tail cable (4), the first transverse cable (2) and the second transverse cable (5), and the first bow cable (3) and the second bow cable (7) are designed to have different breaking forces; The first tail winch device and the second tail winch device, the first midship winch device and the second midship winch device, and the first bow winch device and the second bow winch device have different mass designs.

2. The multi-vessel mooring arrangement structure according to claim 1, characterized in that: The two cargo barges are arranged stern to stern on the second side of the transfer barge.

3. The multi-vessel mooring arrangement structure according to claim 1, characterized in that: The first side of the transfer barge is the port side, and the second side of the transfer barge is the starboard side.

4. The multi-vessel mooring arrangement structure according to claim 1, characterized in that: The first bow cable (3) and the second bow cable (7) are symmetrically connected at the stern of the transfer barge.

5. The multi-vessel mooring arrangement structure according to claim 4, characterized in that: The first tail cable (1) and the second tail cable (4) are symmetrically connected to the bow of the transfer barge.

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