Inland river immersed tube cross-river transport system and short-distance transport method

Abstract

The present invention relates to the technical field of tunnel construction, and in particular to an inland river immersed tube cross-river transportation system and a short-distance transportation method. The transportation system includes an axis dry dock, a brake winch, an undocking winch, a rear position control winch arranged in the axis dry dock, and a traction winch, a front position control winch, and a flow-resistance winch arranged on the opposite bank of the river; the transportation method includes: S1, movement in the dock; S2, undocking of the immersed tube; S3, secondary outfitting and ship-tube connection; S4, winching to the sinking position; the immersed tube is transported from the dry dock to the sinking position by winching, and secondary outfitting is performed during the winching process, without the need to set up a separate secondary outfitting area, and no mooring station is required during the transportation process. Through cable modification and cable replacement operations, interference between the cable and obstacles such as the dock door, the sinking ship, and the trees on the opposite bank of the river is avoided. The construction cost is reduced and the transportation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to an inland river immersed tube cross-river transport system and a short-distance transport method. Background Art

[0002] The construction of immersed tube tunnels is to transport the prefabricated immersed tube segments to the construction site, and then sink the segments in turn to their designed installation positions. The existing immersed tube transportation adopts floating transportation technology, using high-power tugboats or special transport and installation integrated ships to transport the immersed tubes. The tugboats need to dispatch and arrange between various ships, which is a complicated process with a long cycle and high cost. The special transport and installation integrated ships are large in size, and their dispatching process has high requirements on the water depth and width of the channel.

[0003] For inland river immersed tube tunnels, there are fewer immersed tube sections and the length of a single immersed tube section is short. At present, during transportation, anchor piles need to be set up in the water to carry out cable laying and cable replacement operations. The establishment of anchor piles in the water greatly reduces construction efficiency and increases costs.

[0004] After the submerged tube is undocking, it is towed and floated to the sinking location by barges and tugboats. The inland waterway is narrow, the towing ships are equipped with many machines, the transportation control process is complicated, the transportation accuracy is poor, and the risk of water operations is high. Summary of the invention

[0005] In view of the deficiencies existing in the above-mentioned prior art, the present invention provides an inland river immersed tube cross-river transportation system and a short-distance transportation method with high safety and high transportation efficiency.

[0006] The present invention provides an inland river immersed tube cross-river transport system, comprising:

[0007] The axis dry dock is set at one side of the river channel. A plurality of cable guides are arranged in the axis dry dock. The axis dry dock is used for prefabrication of immersed tube segments, primary outfitting, buoyancy calibration, segment leak detection, anchor prevention layer construction, secondary bottoming, etc.

[0008] Braking winches are arranged on the rear wall of the axis dry dock away from the dock door, symmetrically distributed on both sides of the axis where the pipe segments are installed, and are used to control the transportation speed of the immersed tube;

[0009] An undocking control winch is arranged in the middle of the two side walls of the axis dry dock and is used to control the position of the front end or the rear end during the undocking process of the immersed tube;

[0010] A traction winch is arranged on the opposite bank of the river channel and is arranged opposite to the axis dry dock to provide traction force for the immersed tube to move forward;

[0011] Position control winches are arranged on both sides of the river channel, including front position control winches and rear position control winches, which control the positions of the front and rear ends of the immersed tube; the front position control winch is arranged on the other side of the river channel, symmetrically distributed on both sides of the immersed tube installation axis, and is used for front position control of the immersed tube after the immersed tube is undocking; the rear position control winch is arranged on the two side walls of the axis dry dock, and is used for position control of the rear end of the immersed tube through the cable guide device inside the dock before the immersed tube is undocking, and is used for controlling the position of the rear end of the immersed tube through the cable guide device outside the dock after the immersed tube is undocking, so as to avoid left and right movement of the rear end of the immersed tube and collision with the dock door of the axis dry dock or the side of the sinking ship;

[0012] The anti-current winch is installed on the other side of the river channel. It is used to resist the water flow at the front or rear end of the immersed tube to avoid large left and right movement at the front end of the immersed tube during ship-pipe connection, secondary outfitting and transportation at the dock during strong river flow or flood season, as well as at the rear end of the immersed tube after being transported to the immersed tube installation position, resulting in difficult transportation control and low transportation efficiency.

[0013] This technical solution is used for the inland river immersed tube cross-channel transportation system. By setting up winches in the axis dry dock and on the opposite bank of the river, there is no need to set anchor piles in the water, thereby reducing construction costs.

[0014] The present application also provides a method for short-distance transportation of immersed tubes using the above-mentioned inland river immersed tube cross-river transportation system, which specifically includes the following steps:

[0015] S1. Movement within the dock:

[0016] The front end of the immersed tube is connected to the traction winch through a traction cable, and both sides of the front end of the immersed tube are also connected to the undocking control winch through the undocking control cable, and the rear end of the immersed tube is connected to the brake winch and the rear end position control winch through the brake cable and the rear end position control cable respectively;

[0017] During the movement of the immersed tube in the dock, the undocking control cable is used to control the position of the front end of the immersed tube, and the rear end position control cable is used to control the position of the rear end of the immersed tube; the traction winch is used to control the start of the immersed tube and increase the transportation speed of the immersed tube, and the brake winch is used to control the braking of the immersed tube and reduce the transportation speed of the immersed tube;

[0018] S2. Launching of immersed tube:

[0019] When the front end of the immersed tube is winched close to the dock door, the front end of the immersed tube is connected to the rear end winch of the sinking vessel located outside the dock door, and the undocking winch is replaced to be connected to the rear end of the immersed tube to control the rear end position of the immersed tube; and the rear end position control cable is released;

[0020] The front end position control cable connecting the front end of the immersed tube to the front end position control winch is tightened and exerted to control the front end position of the immersed tube to prevent the front end of the immersed tube from colliding with the dock door and the side of the sinking ship during the winching process;

[0021] During the undocking process, as the distance of the front end of the submerged tube inserted into the submerged ship changes, the position connection relationship between the submerged tube and the winch of the submerged ship is adjusted; when the front end of the submerged tube passes through the submerged ship, the front end of the submerged tube is connected to the anti-current winch through the anti-current cable;

[0022] S3. Secondary outfitting and ship pipe connection:

[0023] When the immersed tube is winched out of the dock to the middle position where the sinking vessel is inserted into the immersed tube, the front and rear ends of the immersed tube are connected to the front winch and the rear winch of the sinking vessel respectively through nylon cables, and the immersed tube is outfitted for the second time;

[0024] After the secondary outfitting is completed, the connection between the sinking ship and the dock door is released, the nylon cable between the front and rear ends of the immersed tube and the winch of the sinking ship is released, and the positioning anchors of the sinking ship and the dock door are released. The immersed tube and the sinking ship continue to be winched forward respectively. When the rear end of the immersed tube is completely away from the dock door, the ship and the pipe are connected;

[0025] S4, winch to sinking position:

[0026] After the ship tube is connected, the rear end of the submerged tube is connected to the rear end position control winch again according to the position of each winch and the angle of the cable, while avoiding interference of the secondary outfitting parts on the cable, and the connection between the undocking winch and the rear end of the submerged tube is released. The submerged tube drives the sinking ship to move synchronously, and the sinking ship follows. When the sinking ship moves to the set position for sinking, the mooring and sinking preparations of the submerged tube are carried out, and then the sinking ship continues to move to the sinking position.

[0027] In some embodiments of the present application, in step S1, the front end of the immersed tube is also connected to the front end position control winch via the front end position control cable, and the front end position control cable is in a relaxed state;

[0028] Then the sinking ship is parked outside the dock gate and connected to the mooring post at the dock gate, and the sinking ship is stationed outside the dock gate.

[0029] In some embodiments of the present application, in step S2, when the immersed tube is winched to a certain distance between its front end and the dock door, the front end of the immersed tube is connected to the winch at the rear end of the sinking vessel to assist in controlling the position of the front end of the immersed tube;

[0030] When the submerged tube is winched to the point where its front end is close to the front end of the sinking ship, the connection between the front end of the submerged tube and the winch at the rear end of the sinking ship is released, and the front end of the submerged tube is connected to the winch at the front end of the sinking ship, and the winching continues. When the front end of the submerged tube passes through the front end of the sinking ship, the rear end of the submerged tube is connected to the winch at the rear end of the sinking ship. At this time, the front and rear ends of the submerged tube are respectively connected to the front and rear end winches of the sinking ship, and the submerged tube is in a more stable state.

[0031] In some embodiments of the present application, in step S2, the undocking control cable connecting the undocking winch and the rear end of the immersed tube is arranged in an eight-shaped pattern;

[0032] The front end position control cable connecting the front end of the immersed tube and the front end position control winch is arranged crosswise.

[0033] In some embodiments of the present application, after the immersed tube is moved out of the dock for a certain distance, the undocking control cable will interfere with the dock door, and the undocking control cable is changed from an eight-shaped arrangement to a cross arrangement; the front end position control cable will interfere with the installed secondary outfitting parts, and the front end position control cable is changed from a cross arrangement to a eight-shaped arrangement.

[0034] In some embodiments of the present application, in step S3, before the secondary outfitting of the immersed tube, the front and rear ends of the immersed tube are connected to the front and rear end winches of the sinking ship; when the secondary outfitting is completed, it is necessary to release the connection between the sinking ship and the mooring posts at the dock gate, and release the connection between the front and rear ends of the immersed tube and the front and rear end winches of the sinking ship, so that the sinking ship can move forward under the action of the anchor.

[0035] In some embodiments of the present application, in step S4, when the immersed tube is twisted to the point where the anti-flow cable connection interferes with a shore obstacle, the anti-flow cable is replaced to be connected to the rear end of the immersed tube. At this time, the front end position control cable at the front end of the immersed tube can both control the front end position of the immersed tube and resist the water flow.

[0036] In some embodiments of the present application, in step S4, when the immersed tube is winched to a position where its front end is 3-8 m away from the sinking position, the immersed tube is moored and prepared before sinking.

[0037] In some embodiments of the present application, the immersed tube is connected to the winch using a steel cable, and the front and rear ends of the immersed tube are connected to the front and rear ends of the sinking ship using a nylon cable.

[0038] Based on the above technical scheme, the inland river immersed tube cross-river transportation system and short-distance transportation method of the present invention transports the immersed tube from the dry dock to the sinking position by winching, and performs secondary outfitting during the winching process, without the need to set up a separate secondary outfitting area, and without the need for mooring during transportation, thereby reducing construction costs and improving transportation efficiency;

[0039] During transportation, cable changes and replacements are performed to avoid interference between cables and obstacles such as dock gates, sinking vessels, and trees on the opposite bank of the river.

[0040] After the immersed tube is launched from the dock, anti-current cables are laid at the front and rear ends of the immersed tube in succession to improve the resistance of the front and rear ends of the immersed tube to the impact of water flow and to improve the control of the front and rear end positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0042] Figure 1 It is a general distribution diagram of the axis dry dock, the winch, the fairlead and the bollard on the opposite bank of the river in the embodiment of the present invention;

[0043] Figure 2 It is a schematic diagram of a pipe segment according to an embodiment of the present invention when floating with a cable in a dry dock;

[0044] Figure 3 It is a schematic diagram of the cable when the pipe segment of the embodiment of the present invention starts to twist and move;

[0045] Figure 4 This is a schematic diagram of the cable when the pipe segment of the embodiment of the present invention starts to move 32m;

[0046] Figure 5 This is a schematic diagram of the cable when the pipe segment of the embodiment of the present invention starts to move 39 meters;

[0047] Figure 6 This is a schematic diagram of the cable when the pipe segment according to the embodiment of the present invention is 10 meters out of the dock;

[0048] Figure 7 This is a schematic diagram of the cable when the pipe segment according to the embodiment of the present invention is 50 meters out of the dock;

[0049] Figure 8 This is a schematic diagram of the cable when the pipe segment according to the embodiment of the present invention is 74 meters out of the dock;

[0050] Fig. 9 This is a schematic diagram of the cable when the pipe segment according to the embodiment of the present invention is undocking for 83 meters;

[0051] Fig.10 This is a schematic diagram of the cable when the pipe segment is undocking 104m according to an embodiment of the present invention;

[0052] Fig.11 This is a schematic diagram of the cable when the pipe segment according to the embodiment of the present invention is undocking for 246m;

[0053] Fig.12 This is a schematic diagram of the cable when the pipe segment according to the embodiment of the present invention is 300 meters out of the dock;

[0054] Fig.13 It is a schematic diagram of the cable when the pipe section according to the embodiment of the present invention is twisted into place; DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0056] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0057] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] As attached Figure 1 As shown, the inland river immersed tube cross-river transport system in this embodiment includes:

[0060] The axis dry dock is set on one side of the river. The axis of the dock gate of the axis dry dock is set in line with the axis of the inland river immersed tube tunnel. There are 15 dock cable guides in the axis dry dock. The axis dry dock is used for immersed tube segment prefabrication, primary outfitting, buoyancy calibration, segment leak detection, anti-anchor layer construction, secondary bottoming, etc.

[0061] There are two brake winches, namely, J3 winch and J4 winch, which are arranged on the rear wall of the axis dry dock away from the dock door. In this embodiment, J3 and J4 are located on the south wall of the dry dock, symmetrically distributed on both sides of the axis of the pipe segment installation, and are used to control the transportation speed of the immersed tube;

[0062] There are two undocking winches, J2 winch and J5 winch, which are arranged on the two side walls of the axis dry dock. In this embodiment, J2 is located on the east side wall of the dry dock and J5 is located on the west side wall of the dry dock, and are used to control the position of the front end or the rear end during the undocking process of the immersed tube;

[0063] There is one traction winch, J9 winch, which is located on the opposite bank of the river channel and opposite to the axis dry dock to provide traction for the immersed tube to move forward;

[0064] Position control winches are installed on both sides of the river channel, including front position control winches and rear position control winches, which control the positions of the front and rear ends of the immersed tube;

[0065] There are two front position control winches, J8 winch and J10 winch, which are set on the other side of the river channel and symmetrically distributed on both sides of the installation axis of the immersed tube. They are used for front position control of the immersed tube after it is undocking.

[0066] There are two rear end position control winches, namely, J1 winch and J6 winch, which are arranged on the two side walls of the axis dry dock. Before the immersed tube is undocking, the rear end position of the immersed tube is controlled by the cable guide device inside the dock. After the immersed tube is undocking, the rear end position of the immersed tube is controlled by the cable guide device outside the dock to prevent the rear end of the immersed tube from moving left and right and colliding with the dock door of the axis dry dock or the side of the sinking ship;

[0067] There are two anti-current winches, J7 winch and J11 winch, which are installed on the other side of the river channel to resist the water flow at the front or rear end of the immersed tube to avoid large left-right movement, difficult transportation control and low transportation efficiency at the front end position of the immersed tube during the connection of ship pipes, secondary outfitting and transportation at the dock during the river flow or flood season, as well as at the rear end position of the immersed tube after being transported to the immersed tube installation position.

[0068] In this embodiment, the J1 and J2 winches are located on the east side of the dry dock, the J3 and J4 winches are located on the south side of the dry dock, and the J5 and J6 winches are located on the west side of the dry dock near the dock door;

[0069] There are also 15 cable guides on the dry dock side of the axis, 13 of which are cable guides inside the dock, 2 cable guides are located outside the dry dock, and 2 mooring bollards. D represents the cable guide, and X represents the mooring bollard. The D3, D4, D5, and D6 cable guides are located on the east side of the dry dock, the D7 and D8 cable guides are located on the south side of the dry dock, the D9, D10, D11, and D12 cable guides are located on the west side of the dry dock, and the D14, D15, and D2 cable guides are located on the north side of the dry dock, that is, close to the dock door. D13 and D1 are located outside the dock door of the dry dock, and D14 and D15 are located on both sides of the dock door; the X1 and X2 mooring bollards are located on the inner side of the dock door.

[0070] J11, J10, J9, J8 and J7 are all located on the other side of the river channel, among which J10 and J11 are located on the west side of J9, and J8 and J7 are located on the east side of J9; there are also 6 off-dock cable guides and 2 mooring bollards on the other side of the river channel. From west to east, there are 5 winches, namely D21, D20, D19, D18, D17 and D16, among which D18 is located in the middle position, on the axis of the immersed tube tunnel, and X3 and X4 mooring bollards are located on both sides of the immersed tube sinking position.

[0071] The immersed tube cross-river transport system for inland river immersed tube tunnels of the present technical solution has no need to set anchor piles in the water by setting up winches in the axis dry dock and on the opposite bank of the river, thus reducing construction costs.

[0072] Another embodiment of the present application also provides a method for short-distance transportation of immersed tubes using the above-mentioned inland river immersed tube cross-river transportation system. In this embodiment, the immersed tube is located at a position directly opposite the dock gate, and the immersed tube needs to be prepared before being transported. Figure 2 As shown, cable operation is performed in the axis dry dock. The end close to the dock door is the front end of the immersed tube, and the end away from the dock door is the rear end of the immersed tube. The mooring posts on both sides of the front end of the immersed tube are respectively connected to the undocking winches J2 and J5 through the undocking control cables L2 and L5, and L2 and L5 are arranged in an eight-shaped pattern. The mooring posts on both sides of the rear end of the immersed tube are respectively connected to the rear end position control winches J1 and J6 through the rear end position control cables L1 and L6, and L1 and L6 are arranged in an eight-shaped pattern. The mooring posts on both sides of the rear end of the immersed tube are also connected to the brake winches J3 and J4 on the south side of the axis dry dock through brake cables L3 and L4, and L3 and L4 are arranged crosswise; the ballast water control system inside the immersed tube is started to make the immersed tube float, pick up leaks, sit on the bottom, and float, and then remove the dock door;

[0073] like Figure 3 As shown, after the dock door is removed, the front end of the immersed tube is connected to the traction winch J9 through the traction cable L9 bypassing the fairlead D18, and the front end is also connected to the front position control winches J8 and J10 through the front position control cables L8 and L10. L8 and L10 are arranged crosswise, and the front position control cables L8 and L10 are in a relaxed state; then the sinking ship is parked outside the dock door and connected to the mooring posts X1 and X2 at the dock door, and the sinking ship is stationed outside the dock door. L8 and L10 are connected and relaxed in advance to prevent interference between the ship and the cable connected to L8 and L10 after the sinking ship is stationed; wait for the window period to undocking,

[0074] After the window period arrives, the immersed tube is transported, which includes the following steps:

[0075] S1. Movement within the dock:

[0076] When the immersed tube starts to move, the traction winch J9 provides traction along the axis of the immersed tube through the traction cable L9 passing through D18 located on the axis of the immersed tube tunnel to move the immersed tube forward. The undocking control cables L2 and L5 are used to control the position of the front end of the immersed tube. The rear end position control cables L1 and L6 pass through the cable guide devices D3 and D12 in the dock to control the position of the rear end of the immersed tube. The traction cable L9 is used to control the start of the immersed tube and increase the transportation speed of the immersed tube. The brake cables L3 and L4 connected to the brake winches J3 and J4 at the rear end of the immersed tube are used to control the braking of the immersed tube and reduce the transportation speed of the immersed tube.

[0077] The immersed tube moves towards the dock door;

[0078] S2. Launching of immersed tube:

[0079] In this embodiment, when the immersed tube has traveled 32m, its front end is 7.4m away from the front end of the dock gate. Figure 4 As shown, the mooring post at the front end of the immersed tube is connected to the rear end winch of the sinking ship located outside the dock gate through a nylon cable to assist in controlling the position of the front end of the immersed tube. At this time, the undocking control cables L2 and L5 and the nylon cable connecting the sinking ship and the immersed tube jointly control the position of the front end of the immersed tube, which can prevent the immersed tube from colliding with the side of the sinking ship after being inserted into the sinking ship.

[0080] Continue to see Figure 4 To prevent L2 and L5 from interfering with the dock door, the undocking control cables L2 and L5 connected to the undocking winches J2 and J5 are replaced with cables connected to the rear end of the immersed tube. L2 and L5 are used to control the rear end position of the immersed tube. L1 and L6 are released. The fairlead of the brake cable L4 is changed to have a better braking effect. At this time, the rear end of the immersed tube is braked by L3 and the modified L4. L2 and L5 control the position of the rear end of the immersed tube.

[0081] When the immersed tube continues to move forward, the front end position control cables L8 and L10 connecting the front end of the immersed tube and the front end position control winches J8 and J10 are tightened and exerted to control the front end position of the immersed tube to prevent the front end of the immersed tube from colliding with the dock door and the side of the sinking ship during the winching process; Figure 5 The figure shows the position of the immersed tube after it is twisted and moved 39m to the front end of the dock door;

[0082] Continue to winch and the submerged tube begins to undocking. When it is 10m out of the dock, the front end of the submerged tube begins to enter the sinking ship. Figure 6 As shown;

[0083] like Figure 7 As shown, when the immersed tube is 50m out of the dock, the front end of the immersed tube is close to the front end of the sinking ship, the nylon cable connecting the front end of the immersed tube and the winch at the rear end of the sinking ship is released, and the front end of the immersed tube is connected to the winch at the front end of the sinking ship through the nylon cable;

[0084] Continue to move the submerged tube. When the submerged tube is 74 meters out of the dock, Figure 8 As shown, the front end of the immersed tube passes through the front end of the sinking ship, and the front end of the immersed tube needs to resist the effect of the water flow. Therefore, the front end of the immersed tube is connected to the anti-current winches J7 and J11 through the anti-current cables L7 and L11, the undocking control cables L2 and L5 and the front position control cables L8 and L10 are loosened, and the rear end of the immersed tube is connected to the winch at the rear end of the sinking ship. At this time, the front and rear ends of the immersed tube are respectively connected to the front and rear end winches of the sinking ship, and the immersed tube is in a more stable state; because the undocking control cables L2 and L5 will interfere with the dock door, the undocking control cables L2 and L5 are changed from an eight-shaped arrangement to a cross arrangement; the front position control cables L8 and L10 will interfere with the secondary outfitting parts after installation, and the front position control cables L8 and L10 are changed from a cross arrangement to an eight-shaped arrangement;

[0085] The front and rear ends of the submerged tube are connected to the front and rear winches of the sinking ship respectively, and the submerged tube continues to be winched;

[0086] S3. Secondary outfitting and ship pipe connection:

[0087] When the immersed tube is 83m out of the dock, Fig. 9 As shown, the sinking vessel is inserted into the middle position of the immersed tube, and the front and rear ends of the immersed tube are connected to the front winch and the rear winch of the sinking vessel through nylon cables respectively, and the immersed tube is equipped for the second time;

[0088] After the secondary outfitting is completed, the nylon cable between the front and rear ends of the submerged tube and the winch of the sinking ship is released, the connection between the anchor of the sinking ship and the mooring piles X1 and X2 at the dock door is released, and the positioning anchors of the sinking ship and the dock door are released at the same time, so that the sinking ship can move forward under the action of the anchor, and the submerged tube and the sinking ship continue to move forward respectively;

[0089] like Fig.10 As shown in the figure, when the winch is moved to 104m out of the dock, the rear end of the immersed tube completely leaves the dock gate, and the ship-tube connection is made using a φ32mm steel wire; then the rear end of the immersed tube is connected to the rear end position control winches J1 and J6 again through the rear end position control cables L1 and L6 through D1 and D13 located outside the dry dock. Since the undocking control cables L2 and L5 connected to the undocking winches J2 and J5 and the rear end of the immersed tube will interfere with the dock gate, the connection of the undocking control cables L2 and L5 is released;

[0090] S4, winch to sinking position:

[0091] After the above-mentioned ship tubes are connected and the cables are changed, the submerged tube drives the sinking ship to move synchronously, and the sinking ship moves with it. When the sinking ship is moved out of the dock by 246m, if Fig.11 As shown, the anti-flow cables L7 and L11 connected to the front end of the immersed tube interfere with the trees on the shore, so the anti-flow cables L7 and L11 are replaced to be connected to the rear end of the immersed tube, and the front position control cables L8 and L10 at the front end of the immersed tube can both control the front end position of the immersed tube and resist the water flow;

[0092] like Fig.12 As shown, when the immersed tube is 400m out of the dock and 5m away from the docking end, preparations for sinking are made. The front end of the sinking ship is connected to the X3 and X4 mooring piles on the opposite bank of the river with steel wire ropes and nylon ropes. The steel wire ropes connecting the ship and the tube are released before eliminating the freeboard.

[0093] like Fig.13 As shown, the immersed tube is 305m out of the dock and is being lowered and docked.

[0094] Based on the above technical scheme, the immersed tube cross-river transportation system and method for inland river immersed tube tunnel of the present invention transports the immersed tube from the dry dock to the sinking position by winching, and performs secondary outfitting during the winching process, without the need to set up a separate secondary outfitting area, and without the need for mooring during transportation, thereby reducing construction costs and improving transportation efficiency;

[0095] During transportation, cable changes and replacements are performed to avoid interference between cables and obstacles such as dock gates, sinking vessels, and trees on the opposite bank of the river.

[0096] After the immersed tube is launched from the dock, anti-current cables are laid at the front and rear ends of the immersed tube in succession to improve the resistance of the front and rear ends of the immersed tube to the impact of water flow and to improve the control of the front and rear end positions.

[0097] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0098] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A method for short-distance transportation of inland river immersed tubes across rivers, characterized in that: An inland river immersed tube cross-river transport system is used, and the inland river immersed tube cross-river transport system comprises: An axis dry dock is arranged on one side of the river channel, wherein a plurality of in-dock cable guide devices are arranged in the axis dry dock; Braking winches are arranged on the rear wall of the axis dry dock away from the dock door, symmetrically distributed on both sides of the axis where the pipe segments are installed, and are used to control the transportation speed of the immersed tube; An undocking winch is arranged in the middle of the two side walls of the axis dry dock and is used to control the position of the front end or the rear end during the undocking process of the immersed tube; A traction winch is arranged on the opposite bank of the river channel and is arranged opposite to the axis dry dock to provide traction force for the immersed tube to move forward; Position control winches are arranged on both sides of the river channel, including front position control winches and rear position control winches, which are used to control the positions of the front and rear ends of the immersed tube; the front position control winch is arranged on the other side of the river channel, symmetrically distributed on both sides of the immersed tube installation axis, and is used to control the front position of the immersed tube after the immersed tube is undocking; the rear position control winches are arranged on the two side walls of the axis dry dock, and the rear end position of the immersed tube is controlled by the cable guide device inside the dock before the immersed tube is undocking, and the rear end position of the immersed tube is controlled by the cable guide device outside the dock after the immersed tube is undocking, so as to avoid the rear end of the immersed tube moving left and right and colliding with the dock door of the axis dry dock or the side of the sinking ship; The anti-current winch is installed on the other side of the river. It is used to resist the water flow at the front or rear end of the immersed tube when the water flow is large or during the flood season to avoid the front or rear end of the immersed tube from moving left or right. The method for short-distance transportation using the above-mentioned inland river immersed tube cross-river transportation system comprises the following steps: S1. Movement within the dock: The front end of the immersed tube is connected to the traction winch through a traction cable, and both sides of the front end of the immersed tube are also connected to the undocking winch through the undocking control cable, and the rear end of the immersed tube is connected to the brake winch and the rear end position control winch through the brake cable and the rear end position control cable respectively; During the movement of the immersed tube in the dock, the undocking control cable is used to control the position of the front end of the immersed tube, and the rear end position control cable is used to control the position of the rear end of the immersed tube; the traction winch is used to control the start of the immersed tube and increase the transportation speed of the immersed tube, and the brake winch is used to control the braking of the immersed tube and reduce the transportation speed of the immersed tube; S2. Undocking of immersed tube: When the front end of the immersed tube is winched close to the dock door, the front end of the immersed tube is connected to the rear end winch of the sinking vessel located outside the dock door, and the undocking winch is replaced to be connected to the rear end of the immersed tube to control the rear end position of the immersed tube; and the rear end position control cable is released; The front end position control cable connecting the front end of the immersed tube to the front end position control winch is tightened and exerted to control the front end position of the immersed tube to prevent the front end of the immersed tube from colliding with the dock door and the side of the sinking ship during the winching process; During the undocking process, as the distance of the front end of the submerged tube inserted into the submerged ship changes, the position connection relationship between the submerged tube and the winch of the submerged ship is adjusted; when the front end of the submerged tube passes through the submerged ship, the front end of the submerged tube is connected to the anti-current winch through the anti-current cable; S3. Secondary outfitting and ship pipe connection: When the immersed tube is winched out of the dock to the middle position where the sinking vessel is inserted into the immersed tube, the front and rear ends of the immersed tube are connected to the front winch and the rear winch of the sinking vessel respectively through nylon cables, and the immersed tube is outfitted for the second time; After the secondary outfitting is completed, the connection between the sinking ship and the dock door is released, the nylon cable between the front and rear ends of the immersed tube and the winch of the sinking ship is released, and the positioning anchors of the sinking ship and the dock door are released. The immersed tube and the sinking ship continue to be winched forward respectively. When the rear end of the immersed tube is completely away from the dock door, the ship and the pipe are connected; S4, winch to sinking position: After the ship-tube is connected, the rear end of the submerged tube is connected to the rear end position control winch again, and the connection between the undocking winch and the rear end of the submerged tube is released. The submerged tube drives the sinking ship to move synchronously, and the sinking ship follows. When the sinking ship moves to the set position for sinking, the mooring and sinking preparations of the submerged tube are carried out, and then the sinking ship continues to move to the sinking position.

2. The short-distance transportation method according to claim 1, characterized in that: In step S1, the front end of the immersed tube is also connected to the front end position control winch via the front end position control cable, and the front end position control cable is in a relaxed state; Then the sinking ship is parked outside the dock gate and connected to the mooring post at the dock gate, and the sinking ship is stationed outside the dock gate.

3. The short-distance transportation method according to claim 1, characterized in that: In step S2, when the immersed tube is winched to a certain distance between its front end and the dock door, the front end of the immersed tube is connected to the winch at the rear end of the sinking vessel to assist in controlling the position of the front end of the immersed tube; When the submerged tube is winched to the point where its front end is close to the front end of the sinking ship, the connection between the front end of the submerged tube and the winch at the rear end of the sinking ship is released, and the front end of the submerged tube is connected to the winch at the front end of the sinking ship, and the winching continues. When the front end of the submerged tube passes through the front end of the sinking ship, the rear end of the submerged tube is connected to the winch at the rear end of the sinking ship. At this time, the front and rear ends of the submerged tube are respectively connected to the front and rear end winches of the sinking ship, and the submerged tube is in a more stable state.

4. The short-distance transportation method according to claim 1, characterized in that: Step S2, the undocking control cable connecting the undocking winch to the rear end of the immersed tube is arranged in an eight-shaped pattern; The front end position control cable connecting the front end of the immersed tube and the front end position control winch is arranged crosswise.

5. The short-distance transportation method according to claim 4, characterized in that: After the immersed tube is moved out of the dock for a certain distance, the undocking control cable will interfere with the dock door, so the undocking control cable is changed from an eight-shaped arrangement to a cross arrangement; the front end position control cable will interfere with the installed secondary outfitting parts, so the front end position control cable is changed from a cross arrangement to a eight-shaped arrangement.

6. The short-distance transportation method according to claim 3, characterized in that: In step S3, before the secondary outfitting of the immersed tube, the front and rear ends of the immersed tube are connected to the front and rear end winches of the sinking ship; after the secondary outfitting is completed, it is necessary to release the connection between the sinking ship and the mooring posts at the dock gate, and release the connection between the front and rear ends of the immersed tube and the front and rear end winches of the sinking ship, so that the sinking ship can move forward under the action of the anchor.

7. The short-distance transportation method according to claim 1, characterized in that: In step S4, when the immersed tube is twisted to the point where the anti-flow cable connection interferes with shore obstacles, the anti-flow cable is replaced to be connected to the rear end of the immersed tube. At this time, the front position control cable at the front end of the immersed tube can both control the front end position of the immersed tube and resist the water flow.

8. The short-distance transportation method according to claim 1, characterized in that: In step S4, when the immersed tube is winched to a position where its front end is 3-8 m away from the sinking position, preparations are made for mooring and sinking of the immersed tube.

9. According to the short-distance transportation method of claim 1, the immersed tube is connected to the winch using a steel cable, and the front and rear ends of the immersed tube are connected to the front and rear ends of the sinking ship using a nylon cable.

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