Winch traction shipping system of non-floating wharf design

Abstract

The utility model discloses a winch traction shipping system designed for a non-floating wharf. The winch traction shipping system comprises a self-propelled barge, a steel trestle, a supporting system, a shipping trolley and a traction system. One end of the steel trestle is in sliding connection with the self-propelled barge, the other end of the steel trestle is hinged to the embankment abutment, the supporting system comprises a supporting pile foundation and a supporting door frame, the supporting door frame is supported by the supporting pile foundation, and a hydraulic supporting rod is arranged on the supporting door frame and hinged to the steel trestle; the traction system comprises a brake winch on the embankment, a shipping traction winch on the self-propelled barge and an in-place traction winch, and the self-propelled barge is positioned by an adjustable pile gripper assembly; according to the shipping system, the bridge body is supported through the hydraulic supporting rods of the pile foundation portal frame structure, one end of the bridge body is in sliding connection with the deck of the self-propelled barge, the other end of the bridge body is connected in a hinged mode, the posture can be adjusted according to lifting of the self-propelled barge, the supporting rigidity of the steel trestle and safety and stability of the self-propelled barge are guaranteed, and the shipping method is simple, easy to implement, high in working efficiency and suitable for popularization and application. The shipping process is high in safety, and the total shipping cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation, in particular to a winch traction and transportation system without a floating dock design. Background Art

[0002] Barges used for marine transportation generally have a large draft and are difficult to reach nearshore waters. They can only be unloaded at sea in the sea area a certain distance from the shore. The existing technology realizes the transportation of components by laying floating docks in nearshore waters as part of the channel connecting the barges and the coast, combined with traditional transportation methods; traditional component transportation is achieved by connecting pump boats to floating docks, and the floating docks can be automatically raised and lowered with the water level. However, since both the floating docks and pontoons rely on buoyancy to provide support, they are easily affected by tides and wind and waves, and have poor transportation stability, making them unsuitable for the transportation of large-load cargoes;

[0003] In addition, the traditional methods of transporting components in the channel include air bag transportation, rail gantry transportation, and large lifting equipment with trailer transportation; among them, the air bag transportation of prefabricated blocks requires continuous inflation and deflation of the air bag, which has low construction efficiency; the air bag is prone to damage and has a high safety risk; the rail gantry transportation of prefabricated blocks requires special design and verification of the track foundation and gantry, which has high requirements for the foundation; the transportation channel is a fixed route, and the storage location cannot be freely selected, and it is restricted by the transportation order; and the large lifting equipment with trailers has a high cost;

[0004] Therefore, based on the problems of poor transportation stability, high construction technology requirements, high investment cost, etc. of the above-mentioned shipping system, a winch-traction shipping system without floating dock design and a shipping method thereof are proposed. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art and provide a winch traction and transportation system without floating dock design, so as to overcome one or more problems caused by the limitations and defects of the relevant technology to a certain extent.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0007] The winch-driven shipping system without floating dock design includes self-propelled barge, steel trestle, support system, shipping trolley and traction system;

[0008] The steel trestle is used to construct a shipping channel connecting the self-propelled barge and the embankment. A support pulley is arranged on it. The support pulley is supported on the deck of the self-propelled barge and slides. The other end is also connected to the embankment pier through a hinged structure. The embankment pier is an L-shaped structure, which is detachably connected to the embankment. The steel trestle is supported by a support system in shallow waters and the height of the end of the steel trestle is adjusted;

[0009] The support system includes a support pile foundation and a support gantry. The support gantry is arranged close to one end of the steel trestle and supported by the support pile foundation. The pin shaft on the support gantry is connected to the root of the hydraulic support rod. The end of the hydraulic support rod is hingedly connected to the steel trestle to support one end of the steel trestle and adjust the height of one end of the steel trestle according to the water level.

[0010] The traction system is used to tow the shipping trolley, which includes a brake winch located on the embankment, a shipping traction winch and an in-place traction winch located on the self-propelled barge. The brake winch is located on the extension line of the shipping channel, the shipping traction winch is set on the edge of the deck on the other side of the self-propelled barge away from the steel trestle and is located on the extension line of the shipping channel, and the in-place traction winch is set on the edge of either end of the deck; the brake winch and the shipping traction winch are respectively connected to the opposite ends of the shipping trolley to achieve shipping traction, and the shipping traction winch and the in-place traction winch are connected to the two sides of the shipping trolley after switching through the steering pulley block to achieve in-place traction;

[0011] The self-propelled barge is positioned at sea through an adjustable pile gripper assembly. The adjustable pile gripper assembly and the pile gripper group can be vertically slidably connected. The pile gripper group consists of a connecting member that fixes three positioning pile foundations distributed in a triangular lattice.

[0012] Furthermore, the steel trestle is a multi-section structure, including N bridge bodies, N is set according to the length of the shipping channel, N>1, and the supporting system also includes steel piers, which are set on supporting pile foundations, and N-1 steel piers are configured to support the ends of each bridge body. The ends of the bridge bodies are connected to the steel piers through hinged structures. The steel piers are T-shaped structures, and their upper ends have transition platforms that together with the two adjacent bridge bodies construct a shipping channel.

[0013] Furthermore, there are two pile holding groups, which are located on both sides of the steel trestle, and two sets of adjustable pile holding device assemblies are provided accordingly. The adjustable pile holding device assembly includes a positioning hydraulic rod and two pile holding devices. The positioning hydraulic rod is fixed on the deck on one side of the self-propelled barge, and its connecting rod end is connected to two adjacent pile holding devices through a horizontal synchronization rod. The pile holding device is slidably connected to the positioning pile foundation.

[0014] Furthermore, when the length of the hydraulic support rod is L and L meets the minimum design water level and the hydraulic support rod is in a vertical state, one end of the steel trestle is just overlapped on the self-propelled barge.

[0015] Further preferably, the shipping trolley is a flatbed trolley, the wheels of which are provided with grooves, and the steel trestle is provided with wheel tracks parallel to the shipping channel, and the wheels cooperate with the wheel tracks through the grooves to guide the transportation.

[0016] Compared with the prior art, the winch traction and shipping system of the utility model without floating dock design cancels the floating dock, uses a self-propelled barge instead of a pontoon, adopts a rigid support instead of a floating support, and the end of the bridge body is supported by a hydraulic support rod of a pile foundation gantry structure. The support gantry can also assist in the placement and installation of the steel trestle, so that the docking process between the bridge body and the deck is more controllable. At the same time, one end of the bridge body is slidably connected to the deck of the self-propelled barge, and the other end is connected in an articulated manner. Therefore, the bridge body can automatically adjust its posture according to the lifting and lowering of the self-propelled barge, ensuring the support rigidity of the steel trestle and the safety and stability of the self-propelled barge; in addition, the self-propelled barge is moored by an adjustable pile gripper assembly to reduce the impact of waves on the hull. At the same time, the mooring point of the self-propelled barge can be slightly adjusted according to the end position of the steel trestle, so that the connection between the two is easier to operate, and the bridge body is prevented from slipping off the deck or being too close to the side edge of the deck during the self-adjustment process; a winch traction system is set to realize the transportation of a shipping trolley loaded with components, which is low in cost and easy to control the traction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the top view of the shipping system disclosed in the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the shipping system disclosed in the utility model;

[0019] Figure 3 It is a shipping traction diagram of the shipping system disclosed in the utility model;

[0020] Figure 4 It is a traction diagram of the transport system disclosed in the utility model;

[0021] Figure 5 for Figure 3 Schematic diagram of the structure of the medium-sized shipping trolley.

[0022] In the figure: 1. Self-propelled barge; 2. Adjustable pile gripper assembly; 21. Pile gripper; 22. Positioning hydraulic rod; 3. Support gantry; 31. Gantry crossbeam; 32. Hydraulic support rod; 4. Pile gripper group; 5. First steel trestle; 6. Second steel trestle; 7. Third steel trestle; 8. Support pile foundation; 9. Articulated structure; 10. Steel pier; 11. Bank pier; 12. Shipping trolley; 121. Lifting notch; 122. End traction ear group; 123. Side traction ear group; 13. Braking winch; 14. Shipping traction winch; 15. In-position traction winch; 16. Steering pulley group; L1—minimum design water level; L2—maximum design water level. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings of the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only the best embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 5 The winch-driven shipping system without a floating dock design of the present embodiment shown in the figure eliminates the floating dock and pontoon of the prior art, uses a steel pier and a self-propelled barge 1 as shipping carriers, limits the hull of the self-propelled barge 1 by means of an adjustable pile gripper assembly 2, and limits the axial and lateral fluctuations of the hull while retaining the longitudinal freedom of the rise and fall with the water level. At the same time, a support system is configured to adaptively adjust the steel pier, thereby forming a shipping system that can self-regulate with the water level and has sufficient support stiffness, and the entire system is less affected by waves; the shipping system uses a traction system to tow a shipping trolley 12 to realize the shipping of components; specifically,

[0025] The steel trestle is used to construct the shipping channel connecting the self-propelled barge 1 and the embankment. Figure 1-Figure 2 , designed according to the length of the shipping channel, the steel trestle can be a single-stage type or a multi-stage type. A support pulley is provided at one end of the end bridge body of the single-stage steel trestle and the first steel trestle 5 of the multi-stage steel trestle. The support pulley can be slidably supported on the self-propelled barge 1 to support the end bridge body of the single-stage steel trestle and one end of the first steel trestle 5 of the multi-stage steel trestle, and can slide and adapt to the adjustment posture of the single-stage steel trestle or the first steel trestle 5. The front end of the single-stage steel trestle bridge body is also connected to the bank pier 11 through an articulated structure 9. The bank pier 11 is an L-shaped structure, and its upper end surface is used as the ground of the bridge-on point. While enhancing the supporting strength of the bridge body, the ground supporting stiffness of the bridge-on point of the shipping trolley 12 is improved. The other end of the first steel trestle 5 is also connected to the steel pier 10 through an articulated structure 9. Therefore, the bridge body of the single-stage steel trestle and the bridge body of the first steel trestle 5 are both self-adjustable in inclination, and the height of the end of the steel trestle is automatically adjusted to adapt to the lifting of the self-propelled barge 1;

[0026] Among them, the steel trestle is supported by a supporting system, a bank pier 11 and a self-propelled barge 1. The supporting system includes a supporting pile foundation 8 and a supporting gantry 3. The supporting gantry 3 is erected on two supporting pile foundations 8. At least two symmetrically arranged hydraulic support rods 32 are connected to the support gantry 3 with a pin shaft. The hydraulic support rod 32 is hingedly connected to the steel trestle, and the hinge point is close to one end of the steel trestle. The hydraulic support rod 32 is inverted on the gantry, which can be automatically adjusted by deflection to adapt to the lifting of the self-propelled barge 1. The hydraulic support rod 32 provides a supporting force under the hydraulic pressure of the hydraulic system. The steel trestle has sufficient rigidity and bearing capacity under the rigid support of the hinged structure 9 and the hydraulic support rod 32 of the self-propelled barge 1 to maintain the stability of the components on board.

[0027] The hydraulic support rod 32 not only supports the initial installation of the hoisting, but also provides support during the transportation process. In order to meet the use within the design water level range, it is assumed that the length between the two connection ends of the hydraulic support rod 32 is L when it is in the longest extension state. Figure 2 As shown, when L meets the minimum design water level L1, the hydraulic support rod 32 is in a vertical state, and one end of the steel trestle is just overlapped on the self-propelled barge 1 to complete the support of the extreme water level. If the water level is lower than the design water level, the berthing point should be changed;

[0028] In addition, the self-propelled barge 1 is positioned by an adjustable pile gripper assembly 2. Two groups of pile grippers 4 are arranged at the berthing point of the self-propelled barge 1, and are arranged along the axis of the hull. In order to improve the support stability, the pile gripper assembly 4 is composed of three positioning pile foundations distributed in a triangular lattice. The three positioning pile foundations are connected into one by a connecting bracket, two of which are arranged along the axis of the hull and are sleeved on the two positioning pile foundations as an adjustable pile gripper assembly 2. The adjustable pile gripper assembly 2 includes a positioning hydraulic rod 22 and two pile grippers 21. The connecting rod end of the positioning hydraulic rod 22 is connected to the two pile grippers 21 through a synchronous rod. The positioning hydraulic rod 22 is fixed on the deck of one side of the self-propelled barge 1 to control its horizontal telescopic length to adjust the offshore distance of the self-propelled barge 1 in a small pitch. The pile gripper 21 adopts an existing square or round pile gripper 21, and its built-in pulley is slidably connected with the positioning pile foundation;

[0029] The utility model also provides a cost-effective shipping traction method, in which the components are carried by a shipping trolley 12 with a flatbed vehicle structure, such as Figure 5 As shown, the shipping trolley 12 is composed of a steel shaft, an ultra-heavy universal steel wheel and a body. The body is provided with traction ears evenly arranged on the sides as traction points. The traction system connects the traction points through steel wire ropes to apply traction to the shipping trolley 12, as shown in FIG. Figure 3-Figure 4As shown, the traction system includes a brake winch 13, a shipping traction winch 14 and an in-position traction winch 15. The brake winch 13 is arranged on the embankment and located on the extension line of the shipping channel, and is located behind the shipping trolley 12 to provide a braking force for dispatching. The shipping traction winch 14 is arranged on the deck of the self-propelled barge 1 and is located on the other side edge away from the steel trestle. Similarly, the shipping traction winch 14 is located on the extension line of the shipping channel, and cooperates with the brake winch 13 to achieve uniform speed traction of the shipping trolley 12; the in-position traction winch 15 further pulls the component into place, and uses the shipping traction winch 14 in the middle of the deck to provide braking force. The shipping traction winch 14 adjusts the traction direction through the steering pulley block 16 to apply a braking force along the axial direction of the hull. The steering pulley block 16 includes a fixed pulley and an adjustable pulley, as shown in FIG. Figure 4 As shown, two fixed pulleys reverse the traction rope of the outbound traction winch 14 to form an offset, and the adjustable pulley is set on the in-position path according to the in-position coordinates. The traction rope is turned through the adjustable pulley and then tows one side of the transfer trolley, wherein the adjustable pulley is transferred according to different in-position paths; similarly, the in-position traction winch 15 is set at the end of the deck and close to its side edge, and its traction rope is perpendicular to the axial direction of the hull, and after the adjustable pulley is reversed, it is parallel to the axial direction of the hull and connected to the other side of the transfer trolley, providing traction power along the in-position path. In order to make full use of the in-position traction winch 15 to achieve traction on multiple in-position paths of the deck, as shown in FIG. Figure 4 As shown, the in-position traction winch 15 is arranged at one end of the deck, and the shipping traction winch 14 is offset at the other end of the deck;

[0030] For long-distance shipping channels, the steel trestle adopts a multi-section structure. N bridge bodies should be equipped with N-1 steel piers 10 to support the remaining ends. The steel piers 10 are set on the supporting pile foundations 8. The ends of the bridge bodies are connected to the steel piers 10 through hinged structures 9. The steel piers 10 are T-shaped structures, and their upper ends have a transition platform that together with the two adjacent bridge bodies construct a shipping channel.

[0031] In addition, in order to prevent the shipping trolley 12 from skidding during the shipping traction process, grooves are provided on its wheels to cooperate with the wheel tracks of the steel trestle bridge deck to guide sliding, and the steel wheel tracks are parallel to the shipping channel.

[0032] The method for transporting components by using the winch traction transport system without floating dock design includes the following contents:

[0033] First, the shipping channel is designed and built, including:

[0034] S1. Determine the starting point of the shipping channel and the berthing point of the self-propelled barge 1 according to the sea level, the bank drop, and the bank foundation conditions, obtain the orientation and length of the shipping channel, and determine the number of steel trestle sections N, the number of steel piers 10 N-1, the number of pile foundations required, and the location of each pile foundation. At least two pile foundations should be set along the width of the bridge body for balanced support at each supporting point;

[0035] S2, pile foundation construction and burial, burying supporting pile foundation 8 along the route of the shipping channel, burying positioning pile foundation at the berthing point, burying fixed embankment pier 11 on the embankment at the starting point of the shipping channel, and further enhancing the supporting rigidity by supporting pile foundation 8 under the embankment pier 11;

[0036] S3, positioning the ship for mooring, driving the self-propelled barge 1 close to the mooring point, inserting the pile grippers 21 of the two sets of adjustable pile gripper assemblies 2 on the hull of the self-propelled barge 1 from above the positioning pile foundation, and fixing the synchronization rod with the adjustment hydraulic rod 22 to complete the mooring positioning, restricting the horizontal freedom of movement in all directions, and the adjustable pile gripper assembly 2 is vertically slidably connected with the positioning pile foundation to automatically adjust the self-propelled barge 1 according to the rise and fall of the water level;

[0037] S4, steel trestle laying, for multi-section bridge body, first arrange the third steel trestle 7 and the second steel trestle 6 bridge body, fix the other end of the third steel trestle 7 bridge body to the step surface of the embankment pier 11 through the hinged structure 9, so that the bridge deck is flush with the upper end surface of the embankment pier 11, the second steel trestle 6 bridge body is connected to the two adjacent steel piers 10 through the hinged structure 9, and a continuous shipping channel is formed in series. The other end of the first steel trestle 5 bridge body is hingedly supported on the steel pier 10, the posture and position of the steel trestle are adjusted, the support gantry 3 is installed, the end of the hydraulic support rod 32 is hingedly connected to one end of the steel trestle, the downward extension length of the hydraulic support rod 32 on the support gantry 3 is controlled, and the other end of the steel trestle is slowly placed on the self-propelled barge 1. If the lap position is not suitable, it can be adjusted by adjusting the hydraulic rod 22 for a small distance to complete the construction of the shipping channel; the placement of the steel trestle is completed. In the absence of shipping load, the steel trestle is mainly supported by the support pulley and the hinged structure 9;

[0038] S5. Loading components. Multiple jacks are evenly arranged in the lifting groove below the components. The steel pier 10 is synchronously operated to slowly and horizontally lift the components. According to the external markings of the components, a forklift is used to assist in support. The shipping trolley 12 is gradually pushed under the components until the shipping trolley 12 is pushed to the specified depth position. The components are then lowered synchronously. When lowering the jacks, multiple jacks must be lowered synchronously to ensure that the components fall smoothly on the shipping trolley 12.

[0039] S6, component shipment, the shipment traction winch 14 on the deck of the self-propelled barge 1 and the brake winch 13 set on the land side are respectively connected to the end traction ear groups 122 at both ends of the shipment trolley 12 through steel wire ropes, and the transportation of the shipment trolley 12 is coordinated to control the transportation. During the whole process, the transportation speed is maintained at 1-2m / min; when the shipment trolley 12 goes up to the deck along the shipment channel and reaches the reversing position, the traction perpendicular to the hull is unloaded and switched to traction along the hull direction. The shipment traction winch 14 and the in-position traction winch 15 are respectively connected to the lateral traction winches on both sides of the shipment trolley 12. The lug group 123 moves the adjustable pulley to the path of the component in place, and the steering pulley group 16 is reversed to form traction and braking along the path of placement; during the transportation of the component, the height difference between the two ends of the steel trestle should be ensured to be within the range of 200mm. At the same time, the static stability of the hull needs to be ensured, requiring the longitudinal inclination of the hull to be controlled within the range of (-100mm, 100mm), and the static heel angle of the hull to be controlled within 5°; if it exceeds, the transportation needs to be suspended, and the traction and braking of the transportation traction winch 14 and the in-place traction winch 15 are used to coordinately complete the load adjustment of the component;

[0040] S7, component placement operation. Several lifting grooves 121 are set on the shipping trolley 12 along the unloading direction. Jacks are evenly placed directly below the lifting grooves 121 of the shipping trolley 12. The jacks are driven to synchronously lift the components, and the shipping trolley 12 is gradually pushed out from under the components. At the same time, wooden blocks are placed under the components that have been moved out of the shipping trolley 12. The jack support position is continuously adjusted until the shipping trolley 12 is completely withdrawn along the unloading direction, completing the unloading of the shipping trolley 12 and the component placement.

[0041] During the shipping process, while ensuring the static stability of the hull, its dynamic stability should also be fully considered. When the component is transported to one end of the steel trestle, if the heel angle of the self-propelled barge caused by the shipping load under the action of dynamic external force is greater than 10°, it means that the shipping load is too large, and the load force mainly acts on the self-propelled barge, which will reduce the stability of the self-propelled barge 1 and the shipping trolley 12. At this time, the telescopic length of the hydraulic support rod 32 should be slightly reduced, and the end of the steel trestle should be lifted to increase the distribution of the shipping load by the hydraulic support rod 32. However, it should be ensured that when the component is transported to one end of the steel trestle, the supporting pulley is supported on the deck of the self-propelled barge 1 to ensure the smoothness of the shipping; if the roll amplitude is still too large, it means that the oil pressure is insufficient, and the hydraulic system's holding oil pressure should be increased, or the support strength should be increased by increasing the number of hydraulic support rods 32.

[0042] In addition, as the water level keeps changing, the support pulley slides on the self-propelled barge 1 and constantly changes the support position. In order to prevent the support point from being too close to the side edge of the deck or even slipping off the deck, the adjustable pile gripper assembly 2 can telescopically drive the self-propelled barge to fine-tune the distance from the shore, so as to readjust the correct landing point of one end of the steel trestle on the deck of the self-propelled barge 1.

[0043] The directional words such as "upper", "lower", "side", "end", "first", "last", "front", and "back" mentioned in this article are based on Figure 1-Figure 5 The orientation or position relationship shown in . These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation;

[0044] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the terms "on" and "inside" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0045] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A winch traction and shipping system without floating dock design, characterized by: It includes self-propelled barge, steel trestle, support system, shipping trolley and traction system; among which, The steel trestle is used to construct a shipping channel connecting the self-propelled barge and the embankment. A support pulley is arranged on one end of the steel trestle, and the support pulley is supported on the deck of the self-propelled barge and slides. The other end is connected to the embankment pier through a hinged structure. The embankment pier is an L-shaped structure, which is detachably connected to the embankment. The steel trestle is supported by the support system and the height of the end of the steel trestle can be adjusted; The support system includes a support pile foundation and a support gantry, wherein the support gantry is arranged close to one end of the steel trestle and supported by the support pile foundation, and a pin shaft on the support gantry is connected to the root of a hydraulic support rod, and the end of the hydraulic support rod is hingedly connected to the steel trestle for supporting one end of the steel trestle and adjusting the height of one end of the steel trestle according to the water level; The traction system is used to tow the shipping trolley, and includes a brake winch located on the embankment, a shipping traction winch and an in-place traction winch located on the self-propelled barge, the brake winch is located on the extension line of the shipping channel, the shipping traction winch is arranged on the edge of the deck on the other side of the self-propelled barge away from the steel trestle and is located on the extension line of the shipping channel, and the in-place traction winch is arranged on the side edge of one end of the deck; the brake winch and the shipping traction winch are respectively connected to the opposite ends of the shipping trolley for realizing shipping traction, and the shipping traction winch and the in-place traction winch are connected to the two sides of the shipping trolley after switching through the steering pulley block for realizing in-place traction; The self-propelled barge is positioned at sea by an adjustable pile gripper assembly, and the adjustable pile gripper assembly is vertically slidably connected to a pile gripper group, and the pile gripper group is composed of three positioning pile foundations distributed in a triangular lattice.

2. The winch traction and transportation system according to claim 1, characterized in that: The steel trestle is a multi-section structure, including N bridge bodies, N is set according to the length of the shipping channel, N>1, the support system also includes steel piers, the steel piers are set on the supporting pile foundations, and N-1 steel piers are configured to support each end of the bridge body. The ends of the bridge body are connected to the steel piers through the hinged structure. The steel pier is a T-shaped structure, and its upper end has a transition platform for jointly constructing the shipping channel with the two adjacent bridge bodies.

3. The winch traction and transportation system according to claim 1, characterized in that: There are two pile gripping groups, which are located on both sides of the steel trestle respectively, and two groups of adjustable pile gripper assemblies are correspondingly arranged. The adjustable pile gripper assembly includes a positioning hydraulic rod and two pile grippers. The positioning hydraulic rod is fixed on the deck of one side of the self-propelled barge, and its connecting rod end is connected to two adjacent pile grippers through a horizontal synchronization rod. The pile gripper is slidably connected to the positioning pile foundation.

4. The winch traction and transportation system according to claim 1, characterized in that: The length of the hydraulic support rod is L. When L meets the minimum design water level, the hydraulic support rod is in a vertical state, and one end of the steel trestle is just overlapped on the self-propelled barge.

5. The winch traction and transportation system according to claim 1, characterized in that: The shipping trolley is a flatbed trolley with grooves on its wheels. The steel trestle is provided with wheel tracks parallel to the shipping channel. The wheels cooperate with the wheel tracks through the grooves to guide the transportation.

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