A horizontal jacket SPMT transportation and loading process

Abstract

The present invention discloses a horizontal jacket SPMT transport and loading process, which relates to the field of marine engineering technology. The process comprises the following steps: step one, determining the SPMT carpooling plan; step two, inspecting and debugging the access road surface and surveying the transport route; step three, transporting the assembled SPMT to the bottom of the corresponding horizontal jacket according to the SPMT carpooling plan, and pre-lifting the horizontal jacket; step four, transporting the horizontal jacket to the front position of the wharf via the SPMT; step five, loading the horizontal jacket into place, and transporting the SPMT to the designated position of the barge; step six, loading the horizontal jacket, and withdrawing the SPMT. The horizontal jacket SPMT transport and loading process not only frees the jacket from the limitation of the slideway, solves the problem of occupying slideway resources and loading without being restricted by the tide; it also greatly saves labor costs, shortens the construction period, and saves the construction cost of marine engineering.

Description

Technical Field

[0001] The present invention relates to the field of marine engineering technology, and in particular to a horizontal jacket SPMT transportation and loading process. Background Art

[0002] Currently, when the length of a jacket exceeds 100 meters and the total weight exceeds 1,000 tons, the construction process of the horizontal jacket traditionally adopts the skidding and traction loading method.

[0003] In the prior art, horizontal jackets are typically assembled with skids. After completion, they are towed onto barges using winches and fixed pulleys. However, this loading method is currently subject to the load-bearing capacity of the skids. Construction on the skids must strictly follow the shipping sequence, and the skids require extensive pile foundation investment, resulting in significant initial investment and high construction costs. Furthermore, during loading, towing and loading must take into account high tidal requirements, which can extend the loading time of the horizontal jackets and affect their loading efficiency.

[0004] In order to solve the above problems, a horizontal jacket SPMT transportation and loading process is proposed. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a horizontal jacket SPMT transportation and loading process, which solves the problems that the current horizontal jacket loading method is affected by the bearing capacity of the slideway, the initial slideway requires a large amount of pile foundation investment, resulting in a large initial investment, and the towing and loading during loading must take into account the high tidal requirements, which affects the loading efficiency of the horizontal jacket.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A horizontal jacket SPMT transportation and loading process includes the following steps:

[0007] Step 1: Determine the SPMT carpooling plan. Computer simulation is performed to determine the strength parameters, deformation parameters, and stress parameters of each lifting point of the horizontal jacket during SPMT transportation. Under the premise of using three-point grouping for the hydraulic system, the total weight of the equipment, total weight of the vehicle and cargo, maximum axle load, minimum axle load, maximum ground pressure, and the horizontal jacket carpooling diagram are confirmed.

[0008] Step 2: Inspect and debug the access road surface and survey the transportation route to obtain a transportation route map that meets the requirements of SPMT transportation of horizontal jackets;

[0009] Step 3: According to the SPMT carpooling plan obtained in Step 1, transport the assembled SPMT to the bottom of the corresponding horizontal jacket, and pre-lift and debug the horizontal jacket to ensure that the cargo is fully lifted;

[0010] Step 4: transport the horizontal jacket to the front of the wharf via SPMT according to the transportation route map obtained in step 2;

[0011] Step 5: Load the horizontal jacket onto the ship and transport the SPMT to the designated location on the barge.

[0012] Step 6: Load the horizontal jacket. After the SPMT is adjusted to the designated position on the barge in step 5, lower the platform height and adjust the horizontal jacket position so that the gap between the horizontal jacket beam and the pier is between 5-15mm. Unload the jacket gradually in steps of 30-50bar. During the unloading process, pay attention to the status of the vehicle, cargo, and piers. When the overall pressure of the vehicle group is reduced to 50bar, make a final confirmation. After confirmation, lower the SPMT platform to the lowest walkable height and finally withdraw the SPMT.

[0013] Preferably, in step one, a finite element analysis method is used to simulate and calculate the parameters of the horizontal jacket in the SPMT transportation state, establish a three-dimensional model of the horizontal jacket, set the material properties, boundary conditions and load conditions of the horizontal jacket, perform meshing and solution calculations, and obtain the overall strength parameters, deformation parameters and force parameters of each hanging point of the horizontal jacket in the SPMT transportation state.

[0014] Preferably, in step 2, the vehicle entry road inspection, commissioning and transportation route survey are specifically as follows:

[0015] Check whether there is enough space on the approach road, whether there are any sharp protrusions on the approach road, whether all construction on the approach road has been completed and stopped, and whether no objects have fallen during the entire operation;

[0016] Adjust the size of the access road to meet the required access space, ensure that there are no sharp protrusions on the access road, stop construction, and no objects fall. Do not use hot work after the vehicle enters and when the cargo contacts the vehicle deck.

[0017] Survey the transportation route and eliminate any adverse factors that may affect the transportation of SPMT horizontal jackets.

[0018] Preferably, in step 2, the transport route is scanned using three-dimensional laser scanning technology to obtain three-dimensional point cloud data of the transport route, a three-dimensional model of the transport route is constructed based on the point cloud data, the road surface width, slope and turning radius parameters of the transport route are analyzed, and the transport route is optimized.

[0019] Preferably, in step 3, the operation steps of transporting the SPMT to the bottom of the corresponding horizontal jacket for pre-lifting and debugging specifically include the following steps:

[0020] Arrange monitoring points and reference points of the horizontal jacket and configure operating tools;

[0021] Confirm the vehicle entry space and the SPMT placement location according to the vehicle allocation diagram;

[0022] Equip SPMT tooling according to vehicle configuration drawings;

[0023] SPMT enters the vehicle and takes position;

[0024] SPMT parallel vehicle debugging;

[0025] Synchronously lift the SPMT until it is flush with the bottom surface of the horizontal jacket transport beam, check whether the SPMT fixtures are stressed, add spacers to the unstressed SPMT fixtures and lift them again to check whether the SPMT fixtures are stressed. Repeat this step until all SPMT fixtures are stressed.

[0026] Secure the data connection lines between train sets, measure the ground clearance of the bottom surface of the horizontal jacket transport beam and the height of the carriage plate, and make adjustments;

[0027] Select a specific step value in the range of 30-50bar, and synchronously lift the SPMT until one of the hydraulic groups reaches the pressure value, then stop lifting, measure the height of the vehicle plate monitoring point, the deformation of the vehicle plate, and the status of the cargo, and adjust the oil pressure of other hydraulic groups to ensure the status of the vehicle and cargo.

[0028] Then select a certain step value in the step distance range of 30-50bar, repeat the above steps until the cargo is completely lifted and the lifting operation is completed.

[0029] Preferably, in step three, a total station is used to arrange monitoring points and reference points of the horizontal jacket, and the displacement and deformation of the horizontal jacket during the jacking process are monitored in real time. The monitoring data is transmitted to the control center through wireless transmission technology, and the jacking height and speed of the SPMT are dynamically adjusted according to the monitoring data.

[0030] Preferably, in step 4, the horizontal jacket is transported to the front of the wharf by the SPMT by performing a road survey of the driving area for transporting the jacket from the construction location to the designated location and the area where the horizontal jacket is to be cleared according to the transportation route map, marking factors affecting shipment for processing, and after the inspection and processing results are qualified, using the SPMT to transport the horizontal jacket along the path marked on the transportation route map until it is transported to the front of the wharf.

[0031] Preferably, in step 4, the transport position of the SPMT is tracked in real time using GPS positioning technology, and the positioning data is transmitted to the control center via wireless transmission technology. The transport path and speed of the SPMT are dynamically adjusted according to the positioning data to ensure that the horizontal jacket is transported to the front position of the wharf according to the predetermined path and speed.

[0032] Preferably, factors affecting shipment in the SPMT driving area and the horizontal jacket clearing area include but are not limited to obstacles, ground potholes, sharp protrusions and areas with insufficient bearing capacity.

[0033] Preferably, in step five, laser navigation technology is used to accurately locate the transport position of the SPMT, and the position and posture information of the SPMT relative to the barge is obtained in real time through the laser navigation sensor. The transport path and speed of the SPMT are dynamically adjusted according to the position and posture information to ensure that the horizontal jacket is accurately transported to the designated position of the barge.

[0034] The present invention discloses a horizontal jacket SPMT transportation and loading process, which has the following beneficial effects:

[0035] The horizontal jacket SPMT transportation and loading process provided by the present invention can be constructed at any location within a site by adopting the SPMT transportation method, is not affected by other projects, has low requirements for construction conditions, and has high adaptability. Since the SPMT is wheel-loaded, it has low requirements for ground bearing capacity and does not require pile foundation work, which reduces initial infrastructure investment and lowers costs. Since the SPMT itself has a hydraulic device, it can overcome the influence of tides, which can greatly shorten the loading process and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 This is a plan view of an embodiment of a horizontal jacket SPMT transportation and loading process according to the present invention.

[0038] Figure 2 The figure is a top view of an embodiment of a horizontal jacket SPMT transportation and loading process according to the present invention.

[0039] Figure 3 This is a cross-sectional view of an embodiment of a horizontal jacket SPMT transportation and loading process according to the present invention.

[0040] Figure 4 This is a diagram of loading a horizontal jacket SPMT onto a barge according to an embodiment of the present invention.

[0041] Figure 5 The following is a barge diagram of an embodiment of a horizontal jacket SPMT transportation and loading process according to the present invention.

[0042] Figure 6 The present invention is a flow chart of a horizontal jacket SPMT transportation and loading process.

[0043] In the figure: 1. Horizontal jacket; 2. SPMT; 3. Barge; 4. Shipboard steel plate; 5. Center of gravity. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0045] The embodiments of the present application provide a horizontal jacket SPMT transportation and loading process, which solves the problems that the current loading method of horizontal jackets is affected by the bearing capacity of the slideway, the initial slideway requires a large amount of pile foundation investment, resulting in a large initial investment, and the towing and loading during loading must take into account high tidal requirements, which affects the loading efficiency of the horizontal jacket. By adopting the SPMT transportation method, construction can be carried out at any location on the site without being affected by other projects, with low requirements for construction conditions and high adaptability. Since SPMT has low requirements for ground bearing capacity due to wheel pressure, it does not require pile foundation work, reducing initial infrastructure investment and lowering costs. Since SPMT itself has a hydraulic device, it can overcome the influence of tides, which can greatly shorten the loading process and improve work efficiency.

[0046] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0047] The embodiment of the present invention discloses a horizontal jacket SPMT transportation and ship loading process.

[0048] According to the attached Figure 1 -6, including the following steps:

[0049] Step 1: Determine the carpooling plan for SPMT2. Use computer simulation to determine the parameters of the horizontal jacket 1 in the state of SPMT2 transportation, including overall strength parameters, deformation parameters and force parameters of each lifting point. The hydraulic system adopts three-point grouping, and each hydraulic system group is controlled separately to facilitate subsequent adjustments. Confirm the total weight of the equipment, total weight of the vehicle and cargo, maximum axis (including deadweight), minimum axle load (including deadweight), maximum ground pressure ratio and the vehicle layout of the horizontal jacket 1. The total weight of the equipment refers to the weight of the horizontal jacket 1 itself, and the total weight of the vehicle and cargo refers to the total weight of SPMT2 and the horizontal jacket 1; the maximum axis refers to the wheelbase of SPMT2, and the minimum axle load This determines the minimum load on each axle of the SPMT2, which needs to be compared with the ground's bearing capacity to ensure that the SPMT2 does not damage the ground. The maximum ground contact pressure determines the pressure exerted by each wheel of the SPMT2 on the ground, which needs to be compared with the ground's bearing capacity to ensure that the SPMT2 does not exert excessive pressure on the ground to prevent ground subsidence or damage. The vehicle layout diagram clearly displays the connection method, lifting point location, and balance matching between the SPMT2 and the horizontal jacket 1, providing guidance for the assembly, operation, and transportation of the SPMT2. Confirmation of these parameters is an important basis for selecting the appropriate SPMT2 and transportation route.

[0050] Step 2: Check and debug the access road surface and survey the transportation route. Check whether the access road surface has sufficient space, whether there are any sharp protrusions on the access road surface, whether all construction on the access road surface has been completed and stopped, and whether there is no object falling during the entire operation. Adjust the size of the access road surface to meet the access space requirements, ensure that there are no sharp protrusions on the access road surface, construction is stopped, no objects fall, and no hot work is allowed after the vehicle enters and when the cargo contacts the vehicle deck. Survey the transportation route, use an excavator to remove sharp protrusions on the transportation route, widen the road surface width of the transportation route, and use a roller to widen and level the transportation route.

[0051] Step 3: According to the SPMT2 carpooling plan, transport the assembled SPMT2 to the bottom of the corresponding horizontal jacket rack 1, pre-lift and debug the horizontal jacket rack 1, arrange the monitoring points and reference points of the horizontal jacket rack 1, configure the operating tools, confirm the vehicle entry space and the position of SPMT2 according to the vehicle allocation diagram, configure the SPMT2 tooling according to the vehicle allocation diagram, put SPMT2 into position, debug SPMT2 and simultaneously lift SPMT2 until it fits the bottom surface of the horizontal jacket rack 1 transport beam, check whether the SPMT2 tooling is stressed, add pads to the unstressed SPMT2 tooling and lift it again to check whether the SPMT2 tooling is stressed, and repeat this process. Continue until all SPMT2 fixtures are stressed, secure the data connection lines between the train sets, measure the ground clearance of the bottom surface of the horizontal jacket 1 transport beam and the height of the carriage plate, and adjust them. Select a specific step value within the range of 30-50 bar. Raise the SPMT2 synchronously until one of the hydraulic groups reaches the pressure value. Stop lifting. Measure the height of the carriage plate monitoring point, the deformation of the carriage plate, and the condition of the cargo. Adjust the oil pressure of other hydraulic groups to ensure the condition of the vehicle and cargo. Select a specific step value within the range of 30-50 bar. Repeat the above steps until the cargo is completely lifted and the lifting operation is completed.

[0052] Step 4: The horizontal jacket 1 is transported to the front of the wharf using the SPMT2. According to the transport route map, a road survey is conducted on the driving area from the construction site to the designated location, as well as the area where the horizontal jacket 1 must be cleared. Factors affecting shipment are marked for resolution. Once the inspection and resolution results are satisfactory, the SPMT2 transports the horizontal jacket 1 along the marked route on the transport route map until it reaches the front of the wharf.

[0053] Step 5: Load the horizontal jacket 1 onto the ship and transport the SPMT 2 to the designated location on the barge 3.

[0054] Step 6: Load the horizontal jacket 1. After the horizontal jacket 1 is transported to the designated storage location, lower the vehicle deck and adjust the position of the horizontal jacket 1 so that the gap between the beam piers of the horizontal jacket 1 is between 5-15mm. Unload the cargo gradually according to the step size of 30-50bar. During the unloading process, pay attention to the status of the vehicle, cargo and piers. When the overall pressure of the vehicle set is reduced to 50bar, make a final confirmation. After confirmation, lower the SPMT2 vehicle deck to the lowest walkable height, and finally withdraw the SPMT2.

[0055] It should be noted that in step 1, the computer simulation of the parameters of the horizontal jacket 1 in the SPMT2 transport state is performed by simulating and calculating the parameters of the horizontal jacket 1 in the SPMT2 transport state using the finite element analysis method, establishing a three-dimensional model of the horizontal jacket 1, setting the material properties, boundary conditions and load conditions of the horizontal jacket 1, performing meshing and solution calculations, and obtaining the overall strength parameters, deformation parameters and force parameters of each hanging point of the horizontal jacket 1 in the SPMT2 transport state; specifically:

[0056] Model creation: First, create an accurate geometric model in computer software based on the actual dimensions and structural characteristics of the horizontal jacket 1. This geometric model should include all key parts and details of the horizontal jacket 1, as well as a model of the SPMT2 transport equipment (CAD or other suitable drawing software can be used to create the model).

[0057] Define material properties: Define accurate material properties for each component in the above model, including physical parameters such as elastic modulus, Poisson's ratio, density, strength, etc. These parameters should be set according to the actual practical materials;

[0058] Meshing: Divide the model into a finite number of small units (i.e., finite elements). The meshing should take into account the geometric shape and stress characteristics of the model to ensure the accuracy and efficiency of the analysis.

[0059] Loading and boundary conditions: Appropriate loads and boundary conditions are applied to the model based on the actual situation, including gravity loads, external loads that may be encountered during transportation, and transportation conditions of the SPMT2 transportation equipment;

[0060] Solution and analysis: Run finite element analysis software to solve the mechanical response of the model, including overall strength, deformation, and the stress conditions of each hanging point;

[0061] Result post-processing: The analysis results are post-processed and displayed in the form of graphics or data, including the stress distribution and deformation of the overall structure and the force on each hanging point.

[0062] Furthermore, in step 2, the transport route is scanned using 3D laser scanning technology to obtain 3D point cloud data of the transport route, a 3D model of the transport route is constructed based on the point cloud data, and parameters such as the road width, slope, and turning radius of the transport route are analyzed to optimize the transport route.

[0063] In step 3, the SPMT 2 is transported to the bottom of the corresponding horizontal jacket 1 and pre-lifted, which specifically includes the following steps:

[0064] Arrange monitoring points and reference points of the horizontal jacket 1 and configure operating tools. Before arranging the points, operators need to be in place in advance. Operating tools include but are not limited to tape measures and walkie-talkies. The walkie-talkies are debugged to the same channel and communication tests are performed to ensure smooth communication. Operators at various points can communicate and transfer information through walkie-talkies to ensure timely transmission of fault problems and measurement data. The tape measure can assist the operator in measuring the ground clearance of the jacket transport beam.

[0065] Confirm the vehicle entry space and the position of SPMT2 according to the vehicle allocation diagram; equip SPMT2 tooling according to the vehicle allocation diagram; move SPMT2 into position; SPMT2 is debugged in parallel; moving SPMT2 into position means accurately moving SPMT2 to the bottom of the horizontal jacket 1 to prepare for subsequent lifting and paralleling operations. The specific steps are to consider factors such as the wheelbase of SPMT2, ground bearing capacity, road conditions, etc., and select the best route; lay skids under the jacket to ensure that the wheels of SPMT2 are in good contact with the ground and prevent ground settlement or damage; use the SPMT2's own drive system to slowly move SPMT2 to the predetermined position; use tools such as laser locators and levels to ensure that SPMT2 is accurately parked under the jacket and aligned with the jacket's lifting point position; the purpose of SPMT2 paralleling debugging is to place multiple The SPMT2s are combined together to form an integrated transport platform, which improves the load-bearing capacity and operational flexibility. The specific steps of the parallel commissioning are to connect multiple SPMT2s together using a dedicated connection device to form a whole. By adjusting the drive system of each SPMT2, all SPMT2s are ensured to move synchronously to avoid deflection or misalignment. According to the weight of the jacket and the position of the lifting point, the load distribution of each SPMT2 is adjusted to ensure that all SPMT2s are evenly stressed. The SPMT2s after parallel commissioning are tested to ensure that they can move, turn and stop smoothly and meet the safety operation requirements. By putting the SPMT2s into position and parallel commissioning, the center of gravity 4 on the horizontal jacket 1 can be placed at the center of gravity 4 position, so that the horizontal jacket 1 can remain stable during transportation and not easily shake.

[0066] Synchronously lift SPMT2 until it fits in with the bottom surface of the horizontal jacket 1 transport beam, check whether the SPMT2 tooling is under stress, add pads (rubber or suitable wooden boards, etc.) to the unstressed SPMT2 tooling, and then synchronously lift SPMT2 again until it fits in with the ground of the horizontal jacket 1 transport beam, check whether the SPMT2 tooling is under stress, if not, repeat this step until all SPMT2 tooling are under stress, so as to ensure that the SPMT2 and the horizontal jacket 1 fit tightly and the stress is evenly distributed, which helps to ensure the stability of the transportation process; fix the data connection line between the train sets, measure the height from the ground of the bottom surface of the horizontal jacket 1 transport beam and the height of the car plate and adjust them; the operator checks the status of the car and the cargo, and starts the lifting operation after everything is in order. In the step interval of r, a certain step value is selected, and the SPMT2 is lifted synchronously until one of the hydraulic groups (referring to the hydraulic system of the three-point group on the SPMT2) reaches the pressure value, then the lifting is stopped, the height of the vehicle plate monitoring point, the deformation of the vehicle plate, and the status of the cargo are measured, and the oil pressure of other hydraulic groups is adjusted to ensure the status of the vehicle and cargo; then a certain step value is selected again, and the above steps are repeated until the cargo is completely lifted, the vehicle plate height is adjusted, the status of the cargo is checked, and the lifting operation is completed; during this process, the monitoring points and reference points of the horizontal jacket 1 are arranged using a total station, and the displacement and deformation of the horizontal jacket 1 during the lifting process are monitored in real time. The monitoring data is transmitted to the control center through wireless transmission technology, and the lifting height and speed of the SPMT2 are dynamically adjusted according to the monitoring data.

[0067] In step 4, after the jacking work of the horizontal jacket 1 is completed, the horizontal jacket 1 is transported to the front of the wharf according to the transportation route map, and waits for the right time for roll-on / roll-off. Before transportation, it is necessary to conduct a road survey of the driving area for transporting the jacket from the construction location to the designated location and the clearing area of ​​the horizontal jacket 1 according to the transportation route map, and mark the factors affecting shipment for processing. The factors affecting shipment in the SPMT2 driving area and the clearing area of ​​the horizontal jacket 1 include but are not limited to obstacles, potholes on the ground, sharp protrusions and insufficient bearing capacity. After the inspection and processing results are qualified, the SPMT2 transports the horizontal jacket 1 along the marked path on the transportation route map until it is transported to the front of the wharf. During this process, the transportation position of the SPMT2 can be tracked in real time using GPS positioning technology, and the positioning data is transmitted to the control center through wireless transmission technology. The transportation path and speed of the SPMT2 are dynamically adjusted according to the positioning data to ensure that the horizontal jacket 1 is transported to the front of the wharf according to the predetermined path and speed.

[0068] In step five, a loading plate 4 is provided at the rear end of the barge 3. The loading plate 4 is used to connect the dock and the port of the barge 3 to provide auxiliary support for the loading of the horizontal jacket 1. In addition, laser navigation technology is used to accurately locate the transport position of the SPMT. The laser navigation sensor obtains the position and posture information of the SPMT relative to the barge in real time, and dynamically adjusts the transport path and speed of the SPMT based on the position and posture information to ensure that the horizontal jacket is accurately transported to the designated position on the barge.

[0069] The construction steps of the SPMT2 transport and loading process for the horizontal jacket 1 provided in this embodiment can solve the problems that the current loading method of the horizontal jacket 1 is affected by the bearing capacity of the slideway, the slideway requires a large amount of pile foundation investment in the early stage, resulting in a large initial investment, and the towing and loading during loading must take into account the high tidal requirements, which affects the loading efficiency of the horizontal jacket 1. By adopting the SPMT2 transportation method, construction can be carried out at any location on the site without being affected by other projects, with low requirements for construction conditions and high adaptability. Since the SPMT2 has a low ground bearing capacity requirement due to wheel pressure, no pile foundation work is required, which reduces initial infrastructure investment and reduces costs. Since the SPMT2 has its own hydraulic device, it can overcome the influence of tides, and the loading process can be greatly shortened, thereby improving work efficiency.

[0070] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A horizontal jacket SPMT transport and loading process, characterized in that: The following steps are involved: Step 1: Determine the SPMT carpooling plan. Computer simulation is performed to determine the strength parameters, deformation parameters, and stress parameters of each lifting point of the horizontal jacket during SPMT transportation. Under the premise of using three-point grouping for the hydraulic system, the total weight of the equipment, total weight of the vehicle and cargo, maximum axle load, minimum axle load, maximum ground pressure, and the horizontal jacket carpooling diagram are confirmed. Step 2: Inspect and debug the access road surface and survey the transportation route to obtain a transportation route map that meets the requirements of SPMT transportation of horizontal jackets; Step 3: According to the SPMT carpooling plan obtained in Step 1, transport the assembled SPMT to the bottom of the corresponding horizontal jacket, and pre-lift and debug the horizontal jacket to ensure that the cargo is fully lifted; Step 4: transport the horizontal jacket to the front of the wharf via SPMT according to the transportation route map obtained in step 2; Step 5: Load the horizontal jacket onto the ship and transport the SPMT to the designated location on the barge. Step 6: Load the horizontal jacket. After the SPMT is adjusted to the designated position on the barge in step 5, lower the platform height and adjust the horizontal jacket position so that the gap between the horizontal jacket beam piers is between 5-15mm. Unload the jacket gradually in steps of 30-50bar. During the unloading process, pay attention to the status of the vehicle, cargo, and piers. When the overall pressure of the vehicle group is reduced to 50bar, perform a final confirmation. After confirmation, lower the SPMT platform to the lowest walkable height and finally withdraw the SPMT.

2. The horizontal jacket SPMT transportation and loading process according to claim 1 is characterized in that: In step one, a finite element analysis method is used to simulate and calculate the parameters of the horizontal jacket in the SPMT transportation state, establish a three-dimensional model of the horizontal jacket, set the material properties, boundary conditions and load conditions of the horizontal jacket, perform meshing and solution calculations, and obtain the overall strength parameters, deformation parameters and force parameters of each lifting point of the horizontal jacket in the SPMT transportation state.

3. The horizontal jacket SPMT transportation and loading process according to claim 2 is characterized in that: In step 2, the inspection of the road surface for the vehicle, commissioning and survey of the transportation route are specifically as follows: Check whether there is enough space on the approach road, whether there are any sharp protrusions on the approach road, whether all construction on the approach road has been completed and stopped, and whether no objects have fallen during the entire operation; Adjust the size of the access road to meet the required access space, ensure that there are no sharp protrusions on the access road, stop construction, and no objects fall. Do not use hot work after the vehicle enters and when the cargo contacts the vehicle deck. Survey the transportation route and eliminate any adverse factors that may affect the transportation of SPMT horizontal jackets.

4. The horizontal jacket SPMT transportation and loading process according to claim 3 is characterized in that: In step 2, the transport route is scanned using 3D laser scanning technology to obtain 3D point cloud data of the transport route, a 3D model of the transport route is constructed based on the point cloud data, the road width, slope and turning radius parameters of the transport route are analyzed, and the transport route is optimized.

5. The horizontal jacket SPMT transportation and loading process according to claim 4 is characterized in that: In step 3, the SPMT is transported to the bottom of the corresponding horizontal jacket for pre-lifting and commissioning, and the specific steps include the following: Arrange monitoring points and reference points of the horizontal jacket and configure operating tools; Confirm the vehicle entry space and the SPMT placement location according to the vehicle allocation diagram; Equip SPMT tooling according to vehicle configuration drawings; SPMT enters the vehicle and takes position; SPMT parallel vehicle debugging; Synchronously lift the SPMT until it is flush with the bottom surface of the horizontal jacket transport beam, check whether the SPMT fixtures are stressed, add spacers to the unstressed SPMT fixtures and lift them again to check whether the SPMT fixtures are stressed. Repeat this step until all SPMT fixtures are stressed. Secure the data connection lines between train sets, measure the ground clearance of the bottom surface of the horizontal jacket transport beam and the height of the carriage plate, and make adjustments; Select a specific step value in the range of 30-50bar, and synchronously lift the SPMT until one of the hydraulic groups reaches the pressure value, then stop lifting, measure the height of the vehicle plate monitoring point, the deformation of the vehicle plate, and the status of the cargo, and adjust the oil pressure of other hydraulic groups to ensure the status of the vehicle and cargo. Then select a certain step value in the step distance range of 30-50bar, repeat the above steps until the cargo is completely lifted and the lifting operation is completed.

6. The horizontal jacket SPMT transportation and loading process according to claim 5, characterized in that: In step three, a total station is used to arrange monitoring points and reference points of the horizontal jacket, and the displacement and deformation of the horizontal jacket during the jacking process are monitored in real time. The monitoring data is transmitted to the control center via wireless transmission technology, and the jacking height and speed of the SPMT are dynamically adjusted based on the monitoring data.

7. The horizontal jacket SPMT transportation and loading process according to claim 6, characterized in that: In step 4, the horizontal jacket is transported to the front of the wharf by the SPMT. Specifically, according to the transportation route map, a road survey is conducted on the driving area for transporting the jacket from the construction location to the designated location and the area where the horizontal jacket is to be cleared. Factors affecting shipment are marked for processing. After the inspection and processing results are qualified, the SPMT is used to transport the horizontal jacket along the route marked on the transportation route map until it is transported to the front of the wharf.

8. The horizontal jacket SPMT transportation and loading process according to claim 7, characterized in that: In step 4, GPS positioning technology is used to track the transport position of the SPMT in real time, and the positioning data is transmitted to the control center via wireless transmission technology. The transport path and speed of the SPMT are dynamically adjusted based on the positioning data to ensure that the horizontal jacket is transported to the front position of the wharf according to the predetermined path and speed.

9. The horizontal jacket SPMT transportation and loading process according to claim 8, characterized in that: Factors that affect shipment in the SPMT driving area and the horizontal jacket clearing area include but are not limited to obstacles, ground potholes, sharp protrusions, and areas with insufficient bearing capacity.

10. The horizontal jacket SPMT transportation and loading process according to claim 9, characterized in that: In step five, laser navigation technology is used to accurately locate the transport position of the SPMT. The position and attitude information of the SPMT relative to the barge are obtained in real time through the laser navigation sensor. The transport path and speed of the SPMT are dynamically adjusted based on the position and attitude information to ensure that the horizontal jacket is accurately transported to the designated position on the barge.

Images