CN115676432B - Novel roll-on and roll-off method for large-diameter single pile foundation - Google Patents
Novel roll-on and roll-off method for large-diameter single pile foundation Download PDFInfo
- Publication number
- CN115676432B CN115676432B CN202211426502.1A CN202211426502A CN115676432B CN 115676432 B CN115676432 B CN 115676432B CN 202211426502 A CN202211426502 A CN 202211426502A CN 115676432 B CN115676432 B CN 115676432B
- Authority
- CN
- China
- Prior art keywords
- roll
- spmt
- pile foundation
- ship
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 7
- 230000005856 abnormality Effects 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
Landscapes
- Ship Loading And Unloading (AREA)
Abstract
The invention discloses a novel roll-on-roll method of a large-diameter single pile foundation, which comprises the following steps of: acquiring the size of a single pile foundation to be rolled and installed, and selecting the specification of the SPMT self-propelled module vehicle according to the size; planning a transportation road according to the selected SPMT self-propelled module vehicle and the single pile foundation; carrying a single pile foundation by using an auxiliary tool; an SPMT bicycle module is used for jacking an auxiliary tool bearing a single pile foundation; driving a ro-ro ship into a wharf, and adjusting the height of a ro-ro ship deck to the ro-ro height through a ballast water adjusting system according to the water level at the ro-ro ship wharf; controlling the SPMT to roll on the roll-on roll-off ship, transferring the auxiliary tool bearing the single pile foundation to the roll-on roll-off ship, and (5) removing the SPMT bicycle module from the roll-on-roll ship to finish roll-on-roll of the single pile foundation. The invention achieves the aims of providing a safe and reliable roll-on-roll transportation scheme, reducing transportation cost and improving transportation efficiency.
Description
Technical Field
The invention relates to the technical field of offshore wind power engineering transportation, in particular to a rolling method of a novel large-diameter single pile foundation.
Background
The single pile foundation is one of the structural types of offshore wind turbine foundations, and is installed and used by being transported to an offshore wind farm by a large ship after the construction of a manufacturing base is completed.
Land shipment operation is the important link of offshore wind turbine foundation construction stage, and the present reliable mode of adopting more large-scale steel structure shipment mainly has floating crane handling, slippage shipment and roll-on-roll-off shipment three kinds.
The offshore wind power single pile foundation is huge in size and weight, so that the cost is effectively controlled, and the renting of a large floating crane ship or the fixed capital investment of a large portal crane is reduced, and therefore, a safe and reliable roll-on and roll-off transportation scheme is urgently required.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a novel roll-on/roll-off method of a large-diameter single pile foundation, which is used for solving the technical problem of no mature and reliable roll-on/roll-off transportation scheme of the offshore wind power single pile foundation, thereby achieving the purposes of providing a safe and reliable roll-on/roll-off transportation scheme, reducing transportation cost and improving transportation efficiency.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
A novel roll-on and roll-off method of a large-diameter single pile foundation comprises the following steps:
acquiring the size of a single pile foundation to be rolled and installed, and selecting the specification of the SPMT bicycle module according to the size;
Planning a transportation road according to the selected SPMT self-propelled module vehicle and the single pile foundation;
carrying the single pile foundation by using an auxiliary tool;
lifting the auxiliary tool bearing the single pile foundation by using the SPMT bicycle module;
driving a ro-ro ship into a wharf, and adjusting the height of a ro-ro ship deck to the ro-ro height through a ballast water adjusting system according to the water level at the ro-ro ship wharf;
And controlling the SPMT self-propelled module vehicle to roll on the roll-on-roll ship, transferring the auxiliary tool bearing the single pile foundation to the roll-on-roll ship, withdrawing the SPMT self-propelled module vehicle from the roll-on-roll ship, and finishing the roll-on-roll of the single pile foundation.
As a preferred embodiment of the present invention, when selecting an appropriate SPMT module, it comprises:
Obtaining pile length, diameter and pile weight of a single pile foundation needing rolling, selecting the axial line number of SPMT self-propelled module vehicles for rolling, and determining the number of auxiliary tools for supporting the single pile foundation;
Determining the rated axle load of the SPMT bicycle module according to the axle number of the SPMT bicycle module;
determining the total weight of the auxiliary tools according to the number of the auxiliary tools;
Obtaining the load rate of the SPMT self-propelled module vehicle according to the pile weight of the single pile foundation, the total weight of the auxiliary tool, the axial line number of the SPMT self-propelled module vehicle and the rated shaft load, judging whether the load rate exceeds the maximum load rate, and if not, completing the selection of the SPMT self-propelled module vehicle, wherein the selection is specifically shown in a formula 1:
η＝(D+G)/(Z*S) (1)；
Wherein eta is the loading rate of the SPMT bicycle module, D is the pile weight of the single pile foundation, G is the weight of the auxiliary tool, Z is the rated axle load of the SPMT bicycle module, and S is the axle number.
In a preferred embodiment of the present invention, when planning a transportation path, the method includes:
Determining the width of a straight road surface of a transport road, the width of a transverse moving road surface and the center turning radius of the SPMT self-propelled module vehicle according to the size of a single pile foundation required to be rolled;
And determining the bearing capacity of the transportation road according to the maximum pressure value and the safety coefficient of the SPMT self-propelled module vehicle to the ground during transportation, controlling the longitudinal gradient and the transverse gradient of the transportation road to be smaller than rated values, and completing the planning of the transportation road.
As a preferred embodiment of the invention, when the auxiliary tool is used for bearing the single pile foundation, the method comprises the following steps:
the auxiliary supporting tool is arranged at the position of the supporting point and is arranged between the SPMT self-propelled module vehicle and the single pile foundation, the height of the single pile foundation is adjusted, and the contact area between the supporting point and the SPMT self-propelled module vehicle is increased;
According to the distance from the center of gravity of the single pile foundation loaded by using the auxiliary support tool to the surface of the SPMT bicycle module bicycle plate and the distance from the tire center of the SPMT bicycle module bicycle to the bicycle plate, obtaining the overturning angle of the SPMT bicycle module bicycle, judging whether the overturning angle is larger than a stable overturning value, if so, determining the auxiliary support tool for loading, wherein the auxiliary support tool is specifically shown in a formula 2:
Wherein, theta 1 is the overturning angle of the SPMT bicycle module bicycle, S is the distance from the center of the tire to the bicycle plate, and h is the distance from the center of gravity of the single pile foundation to the surface of the bicycle plate after being carried by using an auxiliary supporting tool;
the auxiliary tool comprises an auxiliary supporting tool and a connecting trestle, and the connecting trestle is used for connecting a wharf and a stern of a roll-on-roll ship.
As a preferred embodiment of the invention, when the auxiliary tool carrying the single pile foundation is lifted, the auxiliary tool comprises:
Driving the SPMT self-propelled module vehicle into the bottom of the auxiliary support tool carrying the single pile foundation for centering and positioning, wherein the error is less than 10mm;
After the height of the SPMT self-propelled module vehicle is adjusted to be the preassembled height, slowly lifting the SPMT self-propelled module vehicle to enable the weight of the SPMT self-propelled module vehicle bearing the auxiliary supporting tool bearing the single pile foundation to reach the preassembled weight, and checking whether the transportation road, the single pile foundation, the auxiliary supporting tool and the SPMT self-propelled module vehicle are abnormal or not;
If not, continuously lifting the SPMT bicycle module to bear the whole weight of the auxiliary supporting tool bearing the single pile foundation, and checking whether the abnormality exists again;
If not, the jacking of the auxiliary supporting tool carrying the single pile foundation is completed.
In a preferred embodiment of the present invention, when checking whether there is an abnormality in the SPMT bicycle module, it includes:
Checking the readings of each supporting pressure gauge of the SPMT self-propelled module vehicle, judging whether the pressure difference value between each supporting pressure gauge exceeds the maximum value of the pressure difference value, and judging whether the readings of a single supporting pressure gauge exceeds the maximum value of the supporting pressure;
if yes, the reading of each supporting pressure gauge is adjusted by micro-motion of the single-point lifting and descending function on the remote controller, and the reading of all the supporting pressure gauges is adjusted to be in a qualified range.
As a preferred embodiment of the present invention, when a roll-on/roll-off ship is driven into a dock, it comprises:
Driving the roll-on/roll-off ship into a wharf and arranging the roll-on/roll-off ship and the wharf in a T shape;
adjusting the deck keel line of the ro-ro ship to be positioned in a centering way with the central line of a shipping area, and controlling the error within +/-10 mm;
The mooring ropes of the stern of the ro-ro ship are connected with anchor piles at the edge of the wharf in a splayed shape, and are twisted and moored;
and paving the connecting trestle between the stern of the ro-ro ship and the wharf, aligning the central line of the connecting trestle with the central line of the transportation channel, and paving transition battens at the two ends of the connecting trestle.
As a preferred embodiment of the present invention, when controlling the SPMT self-propelled module vehicle to roll on the roll-on boat, the method includes:
Starting the SPMT self-propelled module vehicle to the front edge of a wharf for braking, and starting rolling after waiting for the height of the deck of the roll-on/roll-off ship to be adjusted to the roll-on height;
the SPMT self-propelled module vehicle continuously rolls until the deck of the roll-on/roll-off ship is level with the plane of the wharf, stops rolling, and waits for the roll-on/roll-off ship to carry water;
the roll-on/roll-off ship stops draining the stern water storage cabin, and drains the water in the bow water storage cabin out of the ship, so that the bow slowly floats upwards;
After the deck of the ro-ro ship is restored to the roll-ro height, continuing roll-ro, and simultaneously draining the cabin used by the ro-ro ship;
When the SPMT self-propelled module vehicle is rolled on the ship, the roll-on/roll-off ship stops draining water, and after the SPMT self-propelled module vehicle runs to a designated loading position, the roll-on/roll-off ship re-regulates water to keep the balance of the ship body.
As a preferred embodiment of the present invention, when transferring the auxiliary fixture carrying the single pile foundation to the roll-on/roll-off ship, the method comprises:
after the SPMT self-propelled module vehicle runs to a designated loading position, the SPMT self-propelled module vehicle slowly descends and transfers a first rated load to a supporting tool of the roll-on roll-off ship, and the contact condition of each supporting point is checked;
The SPMT self-propelled module vehicle continues to slowly descend, and transfers a second rated load to the supporting tool for checking again;
The SPMT bicycle module is further lowered in height until all loads are transferred to the supporting tool and the SPMT bicycle module is completely separated from the single pile foundation and a significant distance appears;
And the SPMT self-propelled module vehicle continuously descends until reaching a distance of 50-100mm from the bottom of the single pile foundation, and then is withdrawn.
As a preferred embodiment of the present invention, when the SPMT self-propelled module vehicle is withdrawn from the roll-on ship, it includes:
judging whether the tide level is proper, if so, directly operating the SPMT self-propelled module vehicle to withdraw the roll-on-roll-off ship;
if not, adjusting the height difference between the deck of the roll-on-roll-off ship and the wharf through carrier water adjustment, and operating the SPMT self-propelled module vehicle to withdraw from the roll-on-roll-off ship;
Removing the connecting trestle, binding and fixing the single pile foundation, and carrying out load water adjustment on the roll-on roll-off ship until the roll-on roll-off state is reached, so that roll-on roll-off of the single pile foundation is completed.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention adopts the self-propelled modular bicycle roll-on-roll-off ship, and has the advantages of short time, high efficiency, simple and flexible operation, small safety risk, lower cost and the like; in addition, before the model selection, the invention fully considers the load of each module vehicle and the load distribution condition after the operation, and ensures the safety and reliability of each module vehicle in the transportation process;
(2) The auxiliary tool is adopted, and the auxiliary tool is fully contacted with the deck of the ro-ro ship, so that the local stress of the deck is greatly reduced, and the safety and reliability of the single pile foundation in the marine transportation process are ensured; the auxiliary tool is adopted, so that the operation of feeding and discharging the self-propelled modular bicycle is simple and flexible, and the working efficiency of rolling is greatly improved;
(3) The invention provides powerful guarantee for industrialized continuous and efficient transportation of the offshore wind power foundation structure.
The invention is described in further detail below with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a schematic structural diagram of an auxiliary support tool according to an embodiment of the present invention;
FIG. 2-is a schematic illustration of a single pile foundation structure roll-on boarding of an embodiment of the present invention;
FIG. 3-is a schematic illustration of a single pile foundation structure fully rolled onto a ship in accordance with an embodiment of the present invention;
FIG. 4 is a schematic illustration of a roll-on-roll ship berthing and connection trestle laying in accordance with an embodiment of the present invention;
FIG. 5 is a step diagram of a roll-on method of a novel large diameter single pile foundation according to an embodiment of the present invention.
Reference numerals illustrate: 1. an upper transition structure; 2. a lower support structure; 3. a dock; 4. a single pile foundation; 5. SPMT self-propelled module vehicle; 6. roll-on-roll-off ship; 7. connecting trestle; 8. auxiliary support tool; 9. an anchor pile; 10. a cable.
Detailed Description
The roll-on and roll-off method of the novel large-diameter single pile foundation provided by the invention, as shown in fig. 5, comprises the following steps:
Step S1: the method comprises the steps of obtaining the size of a single pile foundation 4 needing rolling, and selecting the specification of an SPMT self-propelled module vehicle 5 according to the size;
step S2: planning a transportation road according to the selected SPMT self-propelled module vehicle 5 and the single pile foundation 4;
step S3: carrying a single pile foundation 4 by using an auxiliary tool;
Step S4: using an SPMT self-propelled module vehicle 5 to lift an auxiliary tool carrying a single pile foundation 4;
step S5: driving the ro-ro ship 6 into the wharf 3, and adjusting the deck height of the ro-ro ship 6 to the ro-ro height through a ballast water adjusting system according to the water level at the ro-ro wharf;
Step S6: the SPMT self-propelled module vehicle 5 rolls on the roll-on roll-off ship 6, the auxiliary tool carrying the single pile foundation 4 is transferred to the roll-on roll-off ship 6, the SPMT self-propelled module vehicle 5 is withdrawn from the roll-on roll-off ship 6, and roll-on roll-off of the single pile foundation 4 is completed.
In the above step S1, when selecting an appropriate SPMT bicycle module 5, it includes:
Obtaining pile length, diameter and pile weight of a single pile foundation 4 needing rolling, selecting the axial line number of SPMT self-propelled module vehicles 5 for rolling, and determining the number of auxiliary tools for supporting the single pile foundation 4;
determining the rated axle load of the SPMT bicycle module 5 according to the number of the axes of the SPMT bicycle module;
determining the total weight of the auxiliary tools according to the number of the auxiliary tools;
Obtaining the load rate of the SPMT self-propelled module bicycle 5 according to the pile weight of the single pile foundation 4, the total weight of the auxiliary tool, the axial line number of the SPMT self-propelled module bicycle 5 and the rated axial load, judging whether the load rate exceeds the maximum load rate, if not, completing the selection of the SPMT self-propelled module bicycle 5, and specifically as shown in a formula 1:
η＝(D+G)/(Z*S) (1)；
Wherein eta is the loading rate of the SPMT bicycle module, D is the pile weight of the single pile foundation, G is the weight of the auxiliary tool, Z is the rated axle load of the SPMT bicycle module, and S is the axle number.
Further, the maximum load factor is 80%.
Specifically, the length of the single pile foundation 4 pile to be transported is 118m, the diameter is 6-8.8m, the pile weight is 1920t, the 6 tooling weights for supporting the single pile foundation 4 are 60t, the dead weight is 444t, and the total weight is 2424t. The SPMT self-propelled module vehicle 5 with 108 axes is matched with 4 PPUs (power boxes), and the transportation and support tool is considered to be arranged on the transverse cabin arm of the roll-on-roll-off ship, so that the grouping axes are 28 shafts and 26 shafts respectively, the rated shaft load is 48t, and the load rate of the SPMT self-propelled module vehicle 5 is as follows:
η＝(1920+60)/(48*108)＝38％
as can be seen from the calculation results, the load rate of the 108-axis SPMT bicycle module 5 is smaller than the maximum load rate, so that the bicycle module is safe and reliable.
In the step S2, when planning the transportation path, the method includes:
Determining the width of a straight road surface of a transport road, the width of a transverse moving road surface and the center turning radius of the SPMT self-propelled module bicycle 5 according to the size of the single pile foundation 4 required to be rolled;
and determining the bearing capacity of the transportation road according to the maximum pressure value and the safety coefficient of the SPMT self-propelled module vehicle 5 to the ground during transportation, controlling the longitudinal gradient and the transverse gradient of the transportation road to be smaller than rated values, and completing the planning of the transportation road.
Further, the width of the straight road surface is not less than 20m, the width of the transverse moving road surface is not less than 15m, the center turning radius is not less than 10m, the maximum pressure value is 7.9t/m 2, the safety coefficient is 1.3, the carrying capacity of the transportation road is 10.27t/m 2, the longitudinal gradient rated value is 2%, and the transverse gradient rated value is 1%.
Specifically, the transportation road should be smooth without barriers to prevent transportation, and in order to ensure transportation safety, the safety factor is 1.3 times, and various index requirements of the transportation road are specifically shown in table 1.
TABLE 1 Marine wind power single pile foundation roll-on transportation road various index requirements
| Project | Road surface bearing | Road width | Headroom height | Longitudinal gradient | Transverse gradient |
| Parameters (parameters) | 10.27t/m2 | ≥20m | ≥10m | ≤2％ | ≤1％ |
In the step S3, when the auxiliary tool is used to carry the single pile foundation 4, the method includes:
The auxiliary supporting tool 8 is arranged at the supporting point and is arranged between the SPMT self-propelled module bicycle 5 and the single pile foundation 4, the height of the single pile foundation 4 is adjusted, and the contact area between the supporting point and the SPMT self-propelled module bicycle 5 is increased;
According to the distance from the center of gravity of the single pile foundation 4 to the surface of the SPMT bicycle module bicycle 5 and the distance from the tire center of the SPMT bicycle module bicycle 5 to the bicycle plate after the auxiliary support tool 8 is used for bearing, the overturning angle of the SPMT bicycle module bicycle 5 is obtained, whether the overturning angle is larger than a stable overturning value is judged, if yes, the auxiliary support tool 8 for bearing is determined, and the specific formula is shown in the formula 2:
Wherein, theta 1 is the overturning angle of the SPMT bicycle module bicycle, S is the distance from the center of the tire to the bicycle plate, and h is the distance from the center of gravity of the single pile foundation to the surface of the bicycle plate after being carried by using an auxiliary supporting tool;
The auxiliary tool comprises an auxiliary supporting tool 8 and a connecting trestle 7, wherein the connecting trestle 7 is used for connecting a wharf and a stern of a roll-on roll-off ship 6.
Further, the stable capsizing value θ=8°.
Specifically, auxiliary fixtures that roll-on-roll-off ship required mainly include auxiliary stay frock 8 and connect landing stage 7 two types. The auxiliary supporting tool 8 is arranged at the position of the supporting point and is arranged between the SPMT self-propelled module bicycle 5 and the single pile foundation 4 and used for adjusting the height of the single pile foundation 4 and increasing the contact area between the supporting point and the body of the SPMT self-propelled module bicycle 5. When barriers such as pipelines, cable brackets and the like exist between the supporting surface of the single pile foundation 4 and the body of the SPMT self-propelled module bicycle 5 or when the position height of the single pile foundation 4 on the roll-on-roll ship 6 is larger than the upper limit of the lifting height of the SPMT self-propelled module bicycle 5, the height of the single pile foundation 4 needs to be adjusted by using an auxiliary supporting tool 8. When the supporting point structure is not suitable to be directly placed on the SPMT vehicle body or the contact area between the supporting point structure and the SPMT vehicle body is too small, the auxiliary supporting tool 8 is required to be used for increasing the contact area between the supporting point structure and the SPMT vehicle body, so that the local stress of the vehicle body is reduced.
The structural design of the auxiliary supporting tool 8 is mainly based on the structural form of the supporting point position and the vehicle distribution position of the SPMT vehicle. The auxiliary supporting tool 8 is fully contacted with the local structure of the supporting point, so that the local stress of the supporting point structure is reduced, meanwhile, the sufficient contact area with the SPMT body is ensured, and the local stress of the SPMT body is further reduced. Considering that the supporting point structure form of the single pile foundation 4 is a circular steel pipe, two rows of SPMT self-propelled modular bicycles 5 are arranged at each supporting point, and therefore the auxiliary supporting tool 8 is designed into a structure form of upper transition and lower support. The upper transition structure 1 can better wrap the steel pipe pile, is designed into an arc-shaped section according to the outer diameter of the steel pipe pile, and the arc length is not less than 1/4 of the circumference of the steel pipe pile. Under the condition of ensuring the self strength and not damaging the local structure of the steel pipe pile, the width of the arc plate is reduced as much as possible. The lower support structure 2 is designed as a box girder structure for supporting the upper transition structure 1 for transferring loads onto the ro-ro deck, the lower support structure 2 having sufficient contact area with the ro-ro deck for reducing the local stresses of the ro-ro deck. The length of the lower supporting structure 2 is larger than the sum of the width of the SPMT vehicle below and the necessary safety clearance, meanwhile, the necessary safety height in the running process of the SPMT vehicle and the roll-on roll-off ship 6 is considered, and the height convenient for unloading is considered, so that the supporting beam adopts a variable cross-section structure, the middle cross-section height is larger than the cross sections of the two ends, and the auxiliary supporting tool 8 is particularly shown in figure 1.
The connection trestle 7 is used for connecting the quay 3 and the deck of the ro-ro ship 6, mainly for crossing the gap between the ro-ro ship 6 and the quay 3.
During transportation, the SPMT bicycle module 5 encounters a lateral slope or under the action of a large lateral wind load, and tends to tilt laterally, if the vehicle has poor ability to withstand external lateral forces, it is prone to toppling. The ability of the vehicle to maintain its original equilibrium position against external factors is referred to as the stability of the vehicle, and if the SPMT bicycle module 5 is above the stable toppling angle (θ=8°), the stability of the SPMT bicycle module 5 is considered to meet the requirements.
Specifically, the SPMT self-propelled module vehicle 5 adopted by the rolling transportation of the single pile foundation 4 is supported by 12 points, so that the plane relation between the gravity center of the single pile foundation 4 and the bearing area of the vehicle group is shown in fig. 1, wherein the distance from the gravity center of the single pile foundation 4 to the surface of the vehicle plate is h=6820mm. When the SPMT bicycle module 5 is traveling normally, the tire center is at a distance s= 3562.5mm from the vehicle panel.
The relation between the SPMT self-propelled module vehicle 5 overturning angle θ and s, h is shown in formula 2, and is specifically calculated as follows:
So the transportation stability of the SPMT self-propelled module vehicle 5 meets the requirement, and the SPMT self-propelled module vehicle can be rolled on a ship according to a rolling scheme.
In the step S4, when the auxiliary tool carrying the single pile foundation 4 is lifted, the method includes:
the SPMT self-propelled module vehicle 5 is driven into the bottom of an auxiliary supporting tool 8 bearing a single pile foundation to perform centering and positioning, and the error is smaller than 10mm;
after the height of the SPMT self-propelled module vehicle 5 is adjusted to be the preassembled height, slowly lifting the SPMT self-propelled module vehicle 5 to enable the weight of the auxiliary supporting tool 8 bearing the single pile foundation to reach the preassembled weight, and checking whether the transportation road, the single pile foundation 4, the auxiliary supporting tool 8 and the SPMT self-propelled module vehicle 5 are abnormal or not;
If not, continuously lifting the SPMT bicycle module 5 to bear the whole weight of the auxiliary support tool 8 bearing the single pile foundation 4, and checking whether abnormality exists again;
If not, the jacking of the auxiliary supporting tool 8 carrying the single pile foundation 4 is completed.
Further, the preassembling height is 100mm from the contact surface of the auxiliary supporting tool 8 of the SPMT bicycle module 5, and the preassembling weight is 100bar.
Specifically, according to the bearing requirement of rolling transportation of the single pile foundation 4, the SPMT self-propelled module vehicle 5 is controlled to drive into the vehicle feeding position of the supporting tool, the longitudinal center of the module vehicle group is symmetrical to the loading center of the single pile foundation 4, rubber/sleepers are arranged on the module vehicle, and the auxiliary supporting tool 8 of the reducing section and the supporting surface of the module vehicle are padded with steel cushion blocks so as to ensure that all grouping module vehicles and the supporting surface of the auxiliary supporting tool 8 keep the same plane. The operator adjusts the height of the SPMT bicycle module 5 to be 100mm from the contact surface of the auxiliary supporting tool 8. The SPMT bicycle module cart 5 is slowly raised so that the deck bears up to 100bar of the weight of the auxiliary support tooling 8 carrying the mono-pile foundation 4.
Further, when checking whether there is an abnormality in the SPMT bicycle module 5, it includes:
Checking the readings of each supporting pressure gauge of the SPMT self-propelled module vehicle 5, judging whether the pressure difference value between each supporting pressure gauge exceeds the maximum value of the pressure difference value, and judging whether the readings of the single supporting pressure gauge exceeds the maximum value of the supporting pressure;
if yes, the reading of each supporting pressure gauge is adjusted by micro-motion of the single-point lifting and descending function on the remote controller, and the reading of all the supporting pressure gauges is adjusted to be in a qualified range.
Further, the pressure difference was 8% maximum and the support pressure was 230bar maximum.
Specifically, all guardianship personnel, commander, SPMT bicycle module car 5 operating personnel are everywhere, debug the intercom and ensure that communication is good. After checking and confirming that everything is correct, a commander sends out an action command, and jacket lifting starts. After the SPMT bicycle module 5 bears the whole weight, checking again to confirm whether the foundation, the single pile foundation 4, the supporting seat and the SPMT bicycle module 5 are abnormal. Checking the readings of each supporting pressure gauge of the SPMT self-propelled module vehicle 5, wherein the pressure difference value between each pressure gauge is not more than 8%, the maximum reading of a single pressure gauge is not more than 230bar, and the readings of each pressure gauge are adjusted by micro-motion through a single-point lifting function and a descending function on a remote controller, so that the readings of all the pressure gauges meet the requirement. And standing for 10 minutes after loading is completed, and waiting for transportation.
In step S5, when the roll-on/roll-off ship 6 is driven into the dock, as shown in fig. 4, the method includes:
the roll-on/roll-off ship 6 is driven into the wharf and is well arranged in a T shape with the wharf;
Adjusting the deck keel line of the ro-ro ship 6 to be centered and positioned with the central line of the shipping area, and controlling the error within +/-10 mm;
the mooring ropes of the stern of the ro-ro ship 6 are connected with anchor piles at the edge of the wharf 3 in a splayed shape and are twisted for mooring;
paving the connecting trestle 7 between the stern of the ro-ro ship 6 and the wharf, aligning the central line of the connecting trestle 7 with the central line of the transportation channel, and paving transition battens at two ends of the connecting trestle 7.
Specifically, the ro-ro ship 6 is driven into the wharf 3 and swings well in a T shape with the wharf 3, the alignment and positioning of a ship deck keel line and a central line of a shipping area are adjusted, the error is controlled within +/-10 mm, and the ro-ro ship is connected with anchor piles at the edge of the wharf 3 in a splayed shape through a mooring rope at the stern part and is subjected to tightening mooring. And paving the connecting trestle 7 between the stern of the ro-ro ship 6 and the wharf 3, wherein the central line of the connecting trestle 7 is required to be aligned with the central line of the transportation channel, and the two ends of the connecting trestle 7 are required to be paved with transitional battens. The SPMT self-propelled module vehicle 3m wide transportation channel and no barriers on the deck are ensured, the loading condition of the single pile foundation 4 and the relevant performance condition of the SPMT self-propelled module vehicle 5 are comprehensively checked, after all the conditions are confirmed to be normal, all the personnel can send out an order of starting transportation, and the transportation is started. The speeds of the roll-on and roll-off transportation process are shown in table 2.
Table 2 transport vehicle speed control table
| Project | Speed of running in dock shipping area | Roll-on boarding speed | Running speed on roll-on ship |
| Parameters (parameters) | ≤0.1m/s | ≤0.05m/s | ≤0.03m/s |
In the above step S6, when the SPMT self-propelled module vehicle 5 is controlled to roll on the roll-on/roll-off boat 6, as shown in fig. 2, it includes:
The SPMT self-propelled module vehicle 5 is started to the front edge full vehicle brake of the wharf 3, and after the deck height of the roll-on/roll-off ship 6 is adjusted to the roll-on/roll-off height, roll-on/roll-off is started;
The SPMT self-propelled module vehicle 5 continuously rolls on and off until the deck of the roll-on and roll-off ship 6 is flush with the plane of the wharf 3, stopping rolling on and off, and waiting for the roll-on and roll-off ship 6 to carry water;
The roll-on/roll-off ship 6 stops draining the stern water storage cabin, and drains the water in the bow water storage cabin out of the ship, so that the bow slowly floats upwards;
After the deck of the ro-ro ship 6 is restored to the ro-ro height, continuing the ro-ro and simultaneously draining the tanks used by the ro-ro ship 6;
When the SPMT self-propelled modular bicycle 5 is completely rolled on the ship, the roll-on/roll-off ship 6 stops draining, and after the SPMT self-propelled modular bicycle 5 runs to a specified loading position, the roll-on/roll-off ship 6 re-regulates the water to keep the ship body balanced.
Further, the roll-on height is 150mm above the dock level.
Specifically, according to the water level at the ship loading dock, the operator of the ro-ro ship 6 operates the ballast water adjusting system on the ro-ro ship 6 to adjust the floating state of the ship, and meanwhile, the elevation change condition of the dock 3 and the deck is detected in the whole process, so that the ship body is kept relatively stable. The guardian needs to monitor the height difference between the tail deck surface of the ro-ro ship 6 and the plane of the wharf, the deviation condition of the vehicle running track, the height change of the deck on the wharf 3 and the ro ship 6, the displacement condition of the connecting trestle 7, the condition of the SPMT train and the condition of the jacket in time.
The rolling load adjustment conditions are as follows:
(1) The modular car starts to the front edge of the wharf 3 to brake the whole car, and waits for the deck height of the roll-on/roll-off ship 6 to meet the roll-on/roll-off requirement;
(2) When the front deck of the ro-ro ship 6 is 150mm higher than the wharf plane, beginning ro-ro;
(3) The module vehicle starts to roll on and off, all water storage cabins of the roll-on and off ship 6 continuously drain and load the water, the module vehicle continuously runs until the deck of the roll-on and off ship 6 is flush with the plane of the wharf, and roll-on and off is stopped at the moment, and the roll-on and off ship 6 waits for water load adjustment;
(4) The roll-on/roll-off ship 6 stops draining the stern water storage cabin, and drains the water in the bow water storage cabin out of the ship, so that the bow slowly floats upwards;
(5) And continuing rolling when the bow deck plane of the roll-on/roll-off ship 6 is 150mm higher than the wharf plane, and simultaneously draining the cabin used by the roll-on/roll-off ship 6. When the transport vehicle is completely roll-on and roll-off, the roll-on and roll-off ship stops draining, and after the module vehicle runs to the designated loading position, the roll-on and roll-off ship 6 re-regulates the water to keep the ship body balanced.
In the above step S6, when transferring the auxiliary fixture carrying the mono pile foundation 4 to the roll-on ship, as shown in fig. 3, it includes:
After the SPMT self-propelled module vehicle 5 runs to a designated loading position, the SPMT self-propelled module vehicle 5 slowly descends and transfers a first rated load to a supporting tool of the roll-on-roll-off ship 6, and the contact condition of each supporting point is checked;
the SPMT self-propelled module vehicle 5 continues to slowly descend, and transfers the second rated load to the supporting tool for checking again;
The SPMT self-propelled module vehicle 5 is further lowered in height until all load is transferred to the supporting tool and the SPMT self-propelled module vehicle 5 is completely separated from the single pile foundation 4 and an obvious distance appears;
The SPMT bicycle module 5 continues to descend until reaching a distance of 50-100mm from the bottom of the single pile foundation 4 and then is withdrawn.
Further, the first rated load is 30%, and the second rated load is 50%.
Specifically, the unloading refers to a process of placing the single pile foundation 4 on the ship-to-ship cushion pier, transferring the load of the single pile foundation 4 to the roll-to-ship 6 entirely, and operating the SPMT self-propelled module vehicle 5 to drive down the roll-to-ship 6, and the detailed steps are as follows:
(1) After the SPMT self-propelled module vehicle 5 reaches the designated position of the roll-on-roll-off ship 6, the SPMT self-propelled module vehicle 5 slowly descends and converts 30% of load onto the support tool of the roll-on-roll-off ship 6, the contact condition of each support point is checked, and a cushion block is inserted if necessary;
(2) 50% of the load is transferred to the roll-on-roll ship 6 support tooling. The SPMT bicycle module 5 is further lowered in height until the entire load is transferred to the support tooling, the SPMT bicycle module 5 is completely separated from the mono-pile foundation 4 and a significant spacing occurs, and the SPMT bicycle module 5 continues to descend until it is withdrawn after reaching a 50-100mm spacing from the bottom of the mono-pile foundation 4.
In the above step S6, when the SPMT bicycle module 5 is withdrawn from the roll-on-roll-off boat 6, it includes:
judging whether the tide level is proper, if so, directly operating the SPMT self-propelled module vehicle 5 to withdraw from the roll-on-roll-off ship 6;
if not, adjusting the height difference between the deck of the roll-on-roll-off ship 6 and the wharf through water carrying, and operating the SPMT self-propelled module vehicle 5 to withdraw from the roll-on-roll-off ship 6;
and removing the connecting trestle 7, binding and fixing the single pile foundation 4, and carrying out water regulation on the roll-on-roll ship 6 until the water reaches a sailing state, so as to finish roll-on-roll of the single pile foundation 4.
Specifically, the crane is used to remove the connection trestle 7, and after the SPMT bicycle module 5 is operated to leave the supporting tool, the supporting tool and the deck are welded, and binding and reinforcing measures are taken for the supporting tool.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention adopts the self-propelled modular bicycle roll-on-roll-off ship, and has the characteristics of short time, high efficiency, simple and flexible operation, small safety risk, lower cost and the like; before the model selection, the load of each module car and the load distribution situation after the work need to be fully considered, so that the safety and the reliability of each module car in the transportation process are ensured;
(2) The auxiliary tool is adopted, and the auxiliary tool is fully contacted with the deck of the ro-ro ship, so that the local stress of the deck is greatly reduced, and the safety and reliability of the single pile foundation in the marine transportation process are ensured; the auxiliary tool is adopted, so that the operation of feeding and discharging the self-propelled modular bicycle is simple and flexible, and the working efficiency of rolling is greatly improved;
(3) The invention provides powerful guarantee for industrialized continuous and efficient transportation of the offshore wind power foundation structure.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (9)
1. The roll-on and roll-off method of the novel large-diameter single pile foundation is characterized by comprising the following steps of:
acquiring the size of a single pile foundation to be rolled and installed, and selecting the specification of the SPMT bicycle module according to the size;
Planning a transportation road according to the selected SPMT self-propelled module vehicle and the single pile foundation;
carrying the single pile foundation by using an auxiliary tool;
using the SPMT bicycle module to jack up an auxiliary tool carrying a single pile foundation;
driving a ro-ro ship into a wharf, and adjusting the height of a ro-ro ship deck to the ro-ro height through a ballast water adjusting system according to the water level at the ro-ro ship wharf;
Controlling the SPMT self-propelled module vehicle to roll on the roll-on-roll ship, transferring the auxiliary tool bearing the single pile foundation to the roll-on-roll ship, withdrawing the SPMT self-propelled module vehicle from the roll-on-roll ship, and finishing the roll-on-roll of the single pile foundation;
wherein, when selecting the proper SPMT module bicycle, include:
Obtaining pile length, diameter and pile weight of a single pile foundation needing rolling, selecting the axial line number of SPMT self-propelled module vehicles for rolling, and determining the number of auxiliary tools for supporting the single pile foundation;
Determining the rated axle load of the SPMT bicycle module according to the axle number of the SPMT bicycle module;
determining the total weight of the auxiliary tools according to the number of the auxiliary tools;
Obtaining the load rate of the SPMT self-propelled module vehicle according to the pile weight of the single pile foundation, the total weight of the auxiliary tool, the axial line number of the SPMT self-propelled module vehicle and the rated shaft load, judging whether the load rate exceeds the maximum load rate, and if not, completing the selection of the SPMT self-propelled module vehicle, wherein the selection is specifically shown in a formula 1:
（1）；
in the method, in the process of the invention, Is the load rate of the SPMT self-propelled module vehicle,Is the pile weight of a single pile foundation,Is the weight of the auxiliary tool and is used for solving the problem of the prior art,Is the rated axle load of the SPMT bicycle module,Is the number of axes.
2. The roll-on method of a novel large diameter mono-pile foundation according to claim 1, characterized by comprising, when planning a haul road:
Determining the width of a straight road surface of a transport road, the width of a transverse moving road surface and the center turning radius of the SPMT self-propelled module vehicle according to the size of a single pile foundation required to be rolled;
And determining the bearing capacity of the transportation road according to the maximum pressure value and the safety coefficient of the SPMT self-propelled module vehicle to the ground during transportation, controlling the longitudinal gradient and the transverse gradient of the transportation road to be smaller than rated values, and completing the planning of the transportation road.
3. The roll-on method of a novel large diameter monopile foundation according to claim 1, wherein when using auxiliary tooling to carry the monopile foundation, comprising:
the auxiliary supporting tool is arranged at the position of the supporting point and is arranged between the SPMT self-propelled module vehicle and the single pile foundation, the height of the single pile foundation is adjusted, and the contact area between the supporting point and the SPMT self-propelled module vehicle is increased;
According to the distance from the center of gravity of the single pile foundation loaded by using the auxiliary support tool to the surface of the SPMT bicycle module bicycle plate and the distance from the tire center of the SPMT bicycle module bicycle to the bicycle plate, obtaining the overturning angle of the SPMT bicycle module bicycle, judging whether the overturning angle is larger than a stable overturning value, if so, determining the auxiliary support tool for loading, wherein the auxiliary support tool is specifically shown in a formula 2:
（2）；
in the method, in the process of the invention, Is the overturning angle of the SPMT self-propelled modular vehicle,Is the distance from the center of the tire to the deck,The distance from the center of gravity of the single pile foundation loaded by the auxiliary supporting tool to the surface of the vehicle plate;
the auxiliary tool comprises an auxiliary supporting tool and a connecting trestle, and the connecting trestle is used for connecting a wharf and a stern of a roll-on-roll ship.
4. A roll-on method of a new large diameter single pile foundation according to claim 3, comprising, when jacking the auxiliary tooling carrying the single pile foundation:
Driving the SPMT self-propelled module vehicle into the bottom of the auxiliary support tool carrying the single pile foundation for centering and positioning, wherein the error is less than 10mm;
After the height of the SPMT self-propelled module vehicle is adjusted to be the preassembled height, slowly lifting the SPMT self-propelled module vehicle to enable the weight of the SPMT self-propelled module vehicle bearing the auxiliary supporting tool bearing the single pile foundation to reach the preassembled weight, and checking whether the transportation road, the single pile foundation, the auxiliary supporting tool and the SPMT self-propelled module vehicle are abnormal or not;
If not, continuously lifting the SPMT bicycle module to bear the whole weight of the auxiliary supporting tool bearing the single pile foundation, and checking whether the abnormality exists again;
If not, the jacking of the auxiliary supporting tool carrying the single pile foundation is completed.
5. The roll-on method of a novel large diameter mono-pile foundation according to claim 4, wherein, when checking if there is an abnormality in the SPMT bicycle module, comprising:
Checking the readings of each supporting pressure gauge of the SPMT self-propelled module vehicle, judging whether the pressure difference value between each supporting pressure gauge exceeds the maximum value of the pressure difference value, and judging whether the readings of a single supporting pressure gauge exceeds the maximum value of the supporting pressure;
if yes, the reading of each supporting pressure gauge is adjusted by micro-motion of the single-point lifting and descending function on the remote controller, and the reading of all the supporting pressure gauges is adjusted to be in a qualified range.
6. A method of roll-on/roll-off of a new large diameter mono-pile foundation according to claim 3, characterised in that it comprises, when driving the roll-on/roll-off vessel into the quay:
Driving the roll-on/roll-off ship into a wharf and arranging the roll-on/roll-off ship and the wharf in a T shape;
adjusting the deck keel line of the ro-ro ship to be positioned in a centering way with the central line of a shipping area, and controlling the error within +/-10 mm;
The mooring ropes of the stern of the ro-ro ship are connected with anchor piles at the edge of the wharf in a splayed shape, and are twisted and moored;
and paving the connecting trestle between the stern of the ro-ro ship and the wharf, aligning the central line of the connecting trestle with the central line of the transportation channel, and paving transition battens at the two ends of the connecting trestle.
7. The roll-on method of a novel large diameter mono-pile foundation according to claim 1, wherein in controlling the roll-on of the SPMT self-propelled module bicycle on the roll-on boat, comprising:
Starting the SPMT self-propelled module vehicle to the front edge of a wharf for braking, and starting rolling after waiting for the height of the deck of the roll-on/roll-off ship to be adjusted to the roll-on height;
the SPMT self-propelled module vehicle continuously rolls until the deck of the roll-on/roll-off ship is level with the plane of the wharf, stops rolling, and waits for the roll-on/roll-off ship to carry water;
the roll-on/roll-off ship stops draining the stern water storage cabin, and drains the water in the bow water storage cabin out of the ship, so that the bow slowly floats upwards;
After the deck of the ro-ro ship is restored to the roll-ro height, continuing roll-ro, and simultaneously draining the cabin used by the ro-ro ship;
When the SPMT self-propelled module vehicle is rolled on the ship, the roll-on/roll-off ship stops draining water, and after the SPMT self-propelled module vehicle runs to a designated loading position, the roll-on/roll-off ship re-regulates water to keep the balance of the ship body.
8. The roll-on method of a new large diameter mono pile foundation according to claim 7, characterized in that when transferring the auxiliary tooling carrying mono pile foundation to the roll-on vessel, it comprises:
after the SPMT self-propelled module vehicle runs to a designated loading position, the SPMT self-propelled module vehicle slowly descends and transfers a first rated load to a supporting tool of the roll-on roll-off ship, and the contact condition of each supporting point is checked;
The SPMT self-propelled module vehicle continues to slowly descend, and transfers a second rated load to the supporting tool for checking again;
The SPMT bicycle module is further lowered in height until all loads are transferred to the supporting tool and the SPMT bicycle module is completely separated from the single pile foundation and a significant distance appears;
And the SPMT self-propelled module vehicle continuously descends until reaching a distance of 50-100mm from the bottom of the single pile foundation, and then is withdrawn.
9. A roll-on method of a new large diameter mono-pile foundation according to claim 3, characterized in that upon withdrawal of the SPMT self-propelled module vehicle from the roll-on vessel, it comprises:
judging whether the tide level is proper, if so, directly operating the SPMT self-propelled module vehicle to withdraw the roll-on-roll-off ship;
if not, adjusting the height difference between the deck of the roll-on-roll-off ship and the wharf through carrier water adjustment, and operating the SPMT self-propelled module vehicle to withdraw from the roll-on-roll-off ship;
Removing the connecting trestle, binding and fixing the single pile foundation, and carrying out load water adjustment on the roll-on roll-off ship until the roll-on roll-off state is reached, so that roll-on roll-off of the single pile foundation is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211426502.1A CN115676432B (en) | 2022-11-15 | 2022-11-15 | Novel roll-on and roll-off method for large-diameter single pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211426502.1A CN115676432B (en) | 2022-11-15 | 2022-11-15 | Novel roll-on and roll-off method for large-diameter single pile foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115676432A CN115676432A (en) | 2023-02-03 |
| CN115676432B true CN115676432B (en) | 2024-07-12 |
Family
ID=85052087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211426502.1A Active CN115676432B (en) | 2022-11-15 | 2022-11-15 | Novel roll-on and roll-off method for large-diameter single pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115676432B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275287A (en) * | 2016-09-05 | 2017-01-04 | 江苏中铁山桥重工有限公司 | A kind of large-scale truss whole sections shipment method |
| CN107499968A (en) * | 2017-09-11 | 2017-12-22 | 上海振华重工(集团)股份有限公司 | A kind of unloading method of bridge crane in shallow draft quay |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011183835A (en) * | 2010-03-04 | 2011-09-22 | Daiichi Kensetsu Kiko Co Ltd | Deck lifting-lowering workbench ship and construction method of offshore wind power generation facility |
| CN108001630B (en) * | 2017-11-28 | 2020-05-05 | 海洋石油工程（青岛）有限公司 | Shipping process of large module |
| CN213036993U (en) * | 2020-08-12 | 2021-04-23 | 华电曹妃甸重工装备有限公司 | Offshore wind power pile foundation roll-on-roll-off shipment system |
| CN217198567U (en) * | 2022-03-02 | 2022-08-16 | 三峡珠江发电有限公司 | Floating type offshore wind power platform rolling and loading transfer system |
| CN217050324U (en) * | 2022-03-30 | 2022-07-26 | 上海博强重工集团有限公司 | Transportation system of going to ship of wind-powered electricity generation single foundation pile |
| CN114572633A (en) * | 2022-03-30 | 2022-06-03 | 上海博强重工集团有限公司 | Transportation boarding system and method for wind power single-foundation piles |
| CN217024564U (en) * | 2022-04-01 | 2022-07-22 | 中远海运物流供应链有限公司 | Transportation rolling platform for rolling heavy goods |
| CN114506417B (en) * | 2022-04-21 | 2022-07-12 | 江苏道达风电设备科技有限公司 | Roll-on and roll-off boarding method for thin-wall steel cylinder |
-
2022
- 2022-11-15 CN CN202211426502.1A patent/CN115676432B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106275287A (en) * | 2016-09-05 | 2017-01-04 | 江苏中铁山桥重工有限公司 | A kind of large-scale truss whole sections shipment method |
| CN107499968A (en) * | 2017-09-11 | 2017-12-22 | 上海振华重工(集团)股份有限公司 | A kind of unloading method of bridge crane in shallow draft quay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115676432A (en) | 2023-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106794887B (en) | method for constructing offshore structure and offshore structure | |
| EP2473400B1 (en) | Offshore wind turbine installation | |
| NL2024562B1 (en) | A feeder vessel | |
| RU2707205C2 (en) | Method for integrated construction and installation of equipment for floating structure upper technological unit | |
| CN107499968A (en) | A kind of unloading method of bridge crane in shallow draft quay | |
| JP3237813U (en) | Roll-on / roll-off transfer system for floating offshore wind platforms | |
| CN112081011A (en) | Shipping and transporting method for large prestressed concrete precast box girder | |
| CN115893042A (en) | Method for sliding wind power pipe pile onto ship | |
| CN115676432B (en) | Novel roll-on and roll-off method for large-diameter single pile foundation | |
| CN104420453A (en) | Integral jointing method of cantilever beam of self-elevating drilling platform | |
| CN110616638A (en) | Bracket-free hoisting method for steel box girder in shallow beach area of suspension bridge | |
| CN103193152B (en) | Hoisting device and method of chain bucket ship unloader | |
| CN111891314B (en) | Construction method for adjusting layer height of garage of ro-ro passenger ship | |
| CN116142832A (en) | Roll-on method for loading SPMT for portal crane | |
| CN214695517U (en) | Self-elevating platform system | |
| CN111152899B (en) | Method for leveling 3000-ton floating crane main arm frame by using semi-submersible barge and floating crane | |
| EP3693513B1 (en) | Structure and method for decommissioning an offshore platform | |
| KR100465882B1 (en) | On-ground Deck Mating Method of Rig Structure by Jack System | |
| CN116812762B (en) | Risk control method for FPSO (floating production storage and offloading) inward-rotation tower crane transportation tool | |
| CN111470430A (en) | Ship-linked crane structure and overwater bridge construction method thereof | |
| CN218508216U (en) | Vehicle roll-on/roll-off channel arranged at wharf and with adjustable gradient | |
| CN118025995B (en) | Whole crane hoisting method for quay crane | |
| CN118087361A (en) | Winch traction outgoing system without floating wharf design and outgoing method thereof | |
| CN115610593A (en) | Roll-on/roll-off boarding construction method for ultra-large components | |
| CN116022637A (en) | Combined hoisting method for large-scale liquid tank steering multi-equipment of gas ship |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |