Construction method of offshore high-pile beam plate type wharf tower crane

Abstract

The invention relates to the technical field of wharf construction, and discloses an offshore high pile beam plate type wharf tower crane construction method which comprises the following steps: S1, construction preparation: carrying out detailed investigation on a construction sea area; s2, construction process optimization: making a construction progress plan; s3, tower crane foundation construction is conducted, specifically, a novel prefabricated combined type foundation structure is adopted, the foundation is composed of a plurality of prefabricated concrete pile shoes and a connecting frame, and the pile shoes and the connecting frame are installed in the reconnaissance sea area; s4, tower crane installation, wherein a tower crane body, a crane boom and a balance arm are installed; s5, monitoring the stability of the tower crane; and S6, construction dismantling is conducted. According to the offshore high pile beam plate type wharf tower crane construction method, by arranging the prefabricated combined type foundation structure, the construction difficulty of a tower crane foundation in a complex marine environment is reduced, the foundation construction efficiency is improved, and meanwhile the adjustable supporting device guarantees the levelness and the installation precision of the foundation.

Description

Technical Field

[0001] The present invention relates to the technical field of wharf construction, and particularly to a tower crane construction method for an offshore high-pile beam-slab wharf. Background Technique

[0002] The offshore high-pile beam-slab wharf is a common wharf structure form. During the construction process, as an important vertical transportation equipment, the rationality of the installation and use of the tower crane has a key impact on the project progress and quality.

[0003] There are many problems in the traditional tower crane construction method for offshore high-pile beam-slab wharves. For example, the construction difficulty of the tower crane foundation is large, the installation accuracy is difficult to guarantee, the stability is insufficient in the complex marine environment, and the connection between different processes during the construction process is not smooth, resulting in low construction efficiency, increased costs, and may also cause greater damage to the surrounding marine ecological environment. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a tower crane construction method for an offshore high-pile beam-slab wharf, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solutions: A tower crane construction method for an offshore high-pile beam-slab wharf, including the following steps:

[0006] Step S1, construction preparation: Conduct a detailed survey of the construction sea area;

[0007] Step S2, construction process optimization: Formulate a construction progress plan;

[0008] Step S3, tower crane foundation construction: Adopt a new type of precast combined foundation structure, which is composed of multiple precast concrete pile shoes and connecting frames, and install the pile shoes and connecting frames to the surveyed sea area;

[0009] Step S4, tower crane installation: Install the tower crane tower body, boom and counterweight arm;

[0010] Step S5, tower crane stability monitoring: Install multiple hydraulic dampers around the tower crane tower body, and automatically adjust the damping force through the hydraulic system to resist the influence of horizontal loads such as sea currents and wind waves on the tower crane;

[0011] Step S6, construction demolition: After the construction is completed, demolish the tower crane in the reverse order of installation.

[0012] Preferably, the step S1 includes:

[0013] Step S11, water depth and geological survey, including water depth, geological conditions, sea current velocity, tidal law, etc.;

[0014] Step S12, Selection of tower crane model. Based on the exploration results, design the tower crane foundation and select the tower crane model.

[0015] Step S13, Assembly of tower crane components. Assemble the main tower crane components such as tower sections, boom, and counterweight on land.

[0016] Step S14, Measurement of assembly accuracy and quality inspection of each component to ensure compliance with design requirements. At the same time, prepare the vessels, pile driving equipment, measuring instruments, etc. required for construction.

[0017] Preferably, in step S2, it includes:

[0018] Step S21, Formulation of construction progress plan. Formulate a detailed construction progress plan, reasonably arrange the sequence and time for the tower crane to hoist various building materials and components, and avoid hoisting conflicts and excessive waiting time.

[0019] Step S22, Adoption of information management system. Real-time track the progress of each process at the construction site, and adjust the working tasks of the tower crane in a timely manner according to the actual situation to improve construction efficiency.

[0020] Preferably, in step S2, in key processes such as the installation of wharf girders and slabs, closely cooperate with the tower crane hoisting operation, plan in advance the hoisting path and installation position of the girders and slabs to ensure that the tower crane hoists in place at one time and reduce the secondary adjustment of the girders and slabs.

[0021] Preferably, in step S3, it includes:

[0022] Step S31, Transportation of pile shoes. Accurately place the precast pile shoes at the designed position through a positioning vessel.

[0023] Step S32, Installation of pile shoes. Use a pile driving vessel to drive the pile shoes into the seabed soil layer.

[0024] Step S33, Pile shoe deviation correction. After the pile shoes are installed, detect the verticality of the pile shoes. After reaching the designed depth, set adjustable support devices inside the pile shoes for fine-tuning the foundation levelness during subsequent installation.

[0025] Step S34, Installation of connection framework. Connect each pile shoe into a whole.

[0026] Step S35, Adjustment of foundation levelness. After the connection framework is installed, detect the levelness of the connection framework and adjust the connection framework to make the foundation meet the levelness requirements.

[0027] Preferably, in step S3, during the foundation construction process, real-time monitor the verticality and penetration depth of the pile shoes, and use sonar equipment to detect the seabed terrain changes around the foundation to ensure the quality of foundation construction.

[0028] Preferably, the step S4 includes:

[0029] Step S41, tower crane body hoisting: Use a large lifting ship to hoist the bottom section of the assembled tower crane body above the foundation, accurately dock it through the positioning device preset on the foundation, and then firmly connect the tower body to the foundation with high-strength bolts;

[0030] Step S42, installation of the tower body and the foundation: Install the tower body sections one by one in the order from bottom to top. For each section installed, use a total station to measure the verticality of the tower body, and make fine adjustments by adjusting the support device on the foundation to ensure that the deviation of the tower body verticality is controlled within a very small range;

[0031] Step S43, installation of the boom: When installing the boom, use a lifting tooling to ensure the stability of the boom during the lifting process and adjust the installation angle of the boom

[0032] Step S44, installation of the counterweight arm: Use a lifting tooling to ensure the stability of the counterweight arm during the lifting process, and accurately adjust the installation angle of the counterweight arm to meet the design requirements;

[0033] Step S45, testing of the electrical system: After the installation is completed, debug the electrical system of the tower crane;

[0034] Step S46, testing of the installation protection device: After the electrical system is debugged, test the safety protection device to ensure the normal operation of the tower crane.

[0035] Preferably, the step S5 includes:

[0036] Step S51, installation of hydraulic dampers: Install a plurality of hydraulic dampers around the tower crane body, and automatically adjust the damping force through the hydraulic system to resist the influence of horizontal loads such as ocean currents and wind waves on the tower crane;

[0037] Step S52, installation of a protective cofferdam: Set up a protective cofferdam around the tower crane foundation, using eco-friendly materials to reduce the disturbance to the marine ecological environment during the construction process, and also buffer the impact of waves on the tower crane foundation to a certain extent;

[0038] Step S53, installation of data sensors: Install a plurality of data sensors around the tower crane body and around the tower crane foundation;

[0039] Step S54, dynamic data warning: Use a real-time monitoring system to continuously monitor parameters such as the verticality of the tower crane, foundation settlement, and structural stress, and check whether the monitored data exceeds the warning value;

[0040] Step S55, manual remote prevention and control: When the monitored data exceeds the warning value, increase the pressure of the foundation support device or adjust the working state of the tower crane through manual remote control.

[0041] Preferably, the step S6 includes:

[0042] Step S61, demolish the auxiliary facilities: Demolish the auxiliary equipment such as hydraulic dampers, data sensors, and protective cofferdams;

[0043] Step S62, demolish the counter jib: Use a crane ship to demolish the counter jib in sequence;

[0044] Step S63, demolish the boom: Use a crane ship to demolish the boom;

[0045] Step S64, demolish the tower body: Use a crane ship to demolish the tower body segments in sequence;

[0046] Step S65, demolish the connecting frame;

[0047] Step S66, demolish the pile shoe.

[0048] Preferably, when demolishing the foundation, the precast pile shoes and connecting frames are demolished piece by piece to minimize the damage to the seabed ecological environment. The demolished components are promptly transported back to land for cleaning, repair, and maintenance for reuse next time.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] 1. In the present invention, by setting the precast combined foundation structure, the construction difficulty of the tower crane foundation in a complex marine environment is reduced, the foundation construction efficiency is improved, and the adjustable support device ensures the levelness and installation accuracy of the foundation.

[0051] 2. In the present invention, by setting hydraulic dampers, various stability guarantee measures effectively improve the wind resistance and current resistance of the tower crane in the marine environment, ensuring the safe and stable operation of the tower crane during the construction process.

[0052] 3. In the present invention, through the optimization of the construction process, the waiting time and conflicts of the tower crane hoisting operation are reduced, the efficiency of the entire wharf construction is improved, the construction period is shortened, and the construction cost is reduced.

[0053] 4. In the present invention, by setting measures such as using an ecological and environmentally friendly protective cofferdam, the damage to the marine ecological environment during construction is reduced, which conforms to the concept of green construction. The components after the tower crane is demolished can be recycled and reused, saving resources and reducing the project cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic flow chart of the present invention;

[0055] Figure 2 It is a schematic flow chart of the construction preparation of the present invention;

[0056] Figure 3Schematic diagram of the construction process optimization of the present invention;

[0057] Figure 4 Schematic diagram of the tower crane foundation construction process of the present invention;

[0058] Figure 5 Schematic diagram of the tower crane installation process of the present invention;

[0059] Figure 6 Schematic diagram of the tower crane stability monitoring process of the present invention;

[0060] Figure 7 Schematic diagram of the construction demolition process of the present invention. Specific implementation mode

[0061] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0062] Please refer to Figure 1-7 , a tower crane construction method for an offshore high-pile beam-slab wharf, including the following steps:

[0063] Step S1, construction preparation: conduct a detailed survey of the construction sea area;

[0064] Step S2, construction process optimization: formulate a construction progress plan;

[0065] Step S3, tower crane foundation construction: adopt a new type of precast combined foundation structure, which is composed of multiple precast concrete pile shoes and connecting frames, and install the pile shoes and connecting frames to the surveyed sea area;

[0066] Step S4, tower crane installation: install the tower crane tower body, boom and counterweight arm;

[0067] Step S5, tower crane stability monitoring: install multiple hydraulic dampers around the tower crane tower body, and automatically adjust the damping force through the hydraulic system to resist the influence of horizontal loads such as sea currents and wind waves on the tower crane;

[0068] Step S6, construction demolition: after the construction is completed, demolish the tower crane in the reverse order of installation.

[0069] The step S1 includes:

[0070] Step S11, water depth and geological survey, including water depth, geological conditions, sea current velocity, tidal law, etc.;

[0071] Step S12: Select the tower crane model, design the tower crane foundation and select the tower crane type according to the survey results.

[0072] Step S13: Assemble the tower crane components. Assemble the main tower crane components such as the tower sections, boom, and counterweight on land.

[0073] Step S14: Measure the assembly accuracy and conduct quality inspections on each component to ensure compliance with the design requirements. At the same time, prepare the vessels, pile driving equipment, measuring instruments, etc. required for construction.

[0074] The steps in Step S2 include:

[0075] Step S21: Develop a construction progress plan. Develop a detailed construction progress plan, reasonably arrange the sequence and time for the tower crane to lift various building materials and components, and avoid lifting conflicts and excessive waiting times.

[0076] Step S22: Adopt an information management system to track the progress of each construction process at the construction site in real time, and adjust the working tasks of the tower crane in a timely manner according to the actual situation to improve construction efficiency.

[0077] In Step S2, in key processes such as the installation of wharf beams and slabs, closely cooperate with the tower crane lifting operation, plan in advance the lifting path and installation position of the beams and slabs, ensure that the tower crane lifts them in place at one time, and reduce the secondary adjustment of the beams and slabs.

[0078] Develop a detailed construction progress plan, and clearly define the sequence and time nodes for the tower crane to lift various building materials and components in the form of a network diagram. For example, after the wharf pile construction is completed, first lift the precast cross beams to the designated position, and then lift the longitudinal beams. Adopt an information management system, set up cameras and sensors at key positions at the construction site to collect construction progress information in real time, transmit the information to the computer terminal in the management center, and the management personnel remotely adjust the lifting tasks of the tower crane according to the actual construction situation. For example, when the installation progress of the beams and slabs in a certain area speeds up, arrange the tower crane to increase the lifting volume of the beams and slabs in that area in a timely manner. In the wharf beam and slab installation process, mark the lifting path and installation position on the beams and slabs in advance, and the tower crane driver accurately lifts the beams and slabs according to the marked information and installs them in place at one time, reducing the secondary adjustment time caused by inaccurate beam and slab positions.

[0079] The steps in Step S3 include:

[0080] Step S31: Transport the pile shoe. Accurately place the precast pile shoe at the designed position through a positioning vessel.

[0081] Step S32: Install the pile shoe. Use a pile driving vessel to drive the pile shoe into the seabed soil layer.

[0082] Step S33, pile shoe rectification. After the pile shoe is installed, check the verticality of the pile shoe. After reaching the designed depth, install an adjustable support device inside the pile shoe to finely adjust the foundation levelness during subsequent installation;

[0083] Step S34, install the connection framework to connect each pile shoe into a whole;

[0084] Step S35, foundation levelness adjustment. After the connection framework is installed, check the levelness of the connection framework and adjust the connection framework to make the foundation meet the levelness requirements.

[0085] In the above-mentioned step S3, during the foundation construction process, the verticality and penetration depth of the pile shoe are monitored in real time, and a sonar device is used to detect the seabed terrain changes around the foundation to ensure the foundation construction quality. Transport the precast concrete pile shoe to the construction site, accurately place the pile shoe at the designed position by using a positioning ship, and jointly measure through the GPS positioning system on the ship and the total station on the shore to ensure that the positioning deviation of the pile shoe is within the allowable range. The pile driving ship drives the pile shoe into the seabed soil layer. During the pile driving process, a verticality monitor installed on the pile shoe is used to monitor the verticality of the pile shoe in real time. When the verticality deviation exceeds the allowable deviation value, correct it by adjusting the attitude of the pile driving ship. After the pile shoe is driven to the designed depth, install the connection framework. The connection framework is made of steel and each pile shoe is connected into a whole by welding. Install an adjustable support device inside the pile shoe. The support device consists of a jack and an adjustment screw rod. Use the total station to measure the foundation levelness and finely adjust the foundation levelness by adjusting the heights of the jack and the screw rod to control the deviation within a very small deviation value. At the same time, use a sonar device to scan the seabed terrain around the foundation to check whether the seabed terrain changes caused by construction activities such as pile driving affect the foundation stability.

[0086] The above-mentioned step S4 includes:

[0087] Step S41, tower body hoisting: Use a large hoisting ship to lift the bottom section of the assembled tower crane tower body above the foundation, accurately dock it through the positioning device preset on the foundation, and then firmly connect the tower body and the foundation with high-strength bolts;

[0088] Step S42, tower body and foundation installation: Install the tower body sections one by one in the order from bottom to top. For each section installed, use the total station to measure the verticality of the tower body and finely adjust it by adjusting the support device on the foundation to ensure that the verticality deviation of the tower body is controlled within a very small range;

[0089] Step S43, install the boom: When installing the boom, use a lifting tooling to ensure the stability of the boom during the lifting process and adjust the installation angle of the boom

[0090] Step S44, installing the balancing arm: using a lifting tool to ensure the stability of the balancing arm during the lifting process, and accurately adjusting the installation angle of the balancing arm to meet the design requirements;

[0091] Step S45, testing the electrical system: after the installation is completed, debugging the electrical system of the tower crane;

[0092] Step S46, test and install the protection device: after the electrical system is debugged, test the safety protection device to ensure the normal operation of the tower crane;

[0093] After the large crane ship is in place, the bottom segment of the tower crane is hoisted to the top of the foundation. The preset positioning grooves and positioning pins on the foundation accurately guide the bottom segment of the tower to dock, and then use high-strength bolts to connect, tighten according to the specified torque value, and install the tower segment section by section. After each section is installed, the total station measures the verticality of the tower at multiple observation points. When the verticality deviation exceeds the allowable deviation range, the deviation is corrected by adjusting the jack height of the support device on the foundation. When installing the boom, a special lifting tool is used. The tool consists of a steel beam and a sling to ensure that the boom will not deform or shake during the lifting process. The installation angle of the boom is accurately measured by the angle measuring instrument set at the root and head of the boom and adjusted to the design requirements. The installation method of the balance arm is similar to that of the boom. After the installation is completed, the electrical system of the tower crane is debugged, and the connection of electrical equipment such as motors, controllers, and cables is checked to be firm. Safety protection devices such as lifting weight limiters, lifting height limiters, and torque limiters are tested to ensure their sensitivity and reliability.

[0094] Step S5 includes:

[0095] Step S51, installing hydraulic dampers: installing multiple hydraulic dampers around the tower crane body, automatically adjusting the damping force through the hydraulic system to resist the influence of horizontal loads such as sea currents, wind and waves on the tower crane;

[0096] Step S52, installing a protective cofferdam: installing a protective cofferdam around the tower crane foundation, using eco-friendly materials to reduce disturbance to the marine ecological environment during construction, and also to buffer the impact of waves on the tower crane foundation to a certain extent;

[0097] Step S53, installing data sensors: installing a plurality of data sensors around the tower crane body and around the tower crane foundation;

[0098] Step S54, dynamic data warning: using the real-time monitoring system to continuously monitor the verticality, foundation settlement, structural stress and other parameters of the tower crane to see if the monitoring data exceeds the warning value;

[0099] Step S55, manual remote control and prevention: When the monitoring data exceeds the warning value, manually remotely control to increase the pressure of the basic support device or adjust the working state of the tower crane.

[0100] Install multiple hydraulic dampers evenly around the tower crane tower body. The hydraulic dampers generate damping force through the flow of internal hydraulic oil to resist horizontal loads. The installation positions and angles of the hydraulic dampers are determined through mechanical calculations to ensure that they can play the maximum role. Set a protective cofferdam around the tower crane foundation. The shape of the cofferdam is circular, and the height is determined according to the tidal conditions of the construction sea area to ensure that it can effectively buffer the impact of waves on the tower crane foundation at the highest tide level. The real-time monitoring system consists of sensors, data collectors, and a monitoring center. The sensors are installed at key parts such as the tower crane tower body and foundation to collect data such as verticality, foundation settlement, and structural stress in real time. The data collector transmits the collected data to the monitoring center. When the monitoring data exceeds the warning value, the monitoring center automatically issues an alarm and activates emergency reinforcement measures, such as remotely controlling the hydraulic system of the basic support device to increase pressure to reinforce the tower crane foundation.

[0101] The said step S6 includes:

[0102] Step S61, remove auxiliary facilities: Remove auxiliary equipment such as hydraulic dampers, data sensors, and protective cofferdams.

[0103] Step S62, remove the counterweight arm: Use a crane ship to remove the counterweight arm in sequence.

[0104] Step S63, remove the boom: Use a crane ship to remove the boom.

[0105] Step S64, remove the tower body: Use a crane ship to remove the tower body segments in sequence.

[0106] Step S65, remove the connecting frame;

[0107] Step S66, remove the pile shoe.

[0108] When removing the foundation, remove the precast pile shoes and connecting frames piece by piece to minimize the damage to the seabed ecological environment. The removed components are transported back to land in time for cleaning, repair, and maintenance for reuse next time;

[0109] After the construction is completed, the lighting fixtures, cable ducts and other auxiliary equipment on the boom and balance arm are first removed. After the crane ship is in place, the boom and balance arm are removed in sequence using special lifting equipment. During the removal process, the crane ship is kept stable to avoid the shaking of the components. The tower segments are removed in order from top to bottom, and the removed components are hoisted to the transport ship in time. When removing the foundation, the specially designed removal equipment is used to remove the connection frame first, and then the prefabricated pile shoes are pulled out piece by piece. The disturbance of the seabed soil layer is minimized during the removal process. The removed components are transported back to land, and the metal parts such as the tower section, boom, balance arm, etc. are rust-removed and painted. The concrete parts such as the foundation pile shoes are inspected and repaired in time if damaged so that they can be reused in the next project.

[0110] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An offshore high-pile beam-slab wharf tower crane construction method, characterized in that, It includes the following steps: Step S1, construction preparation: Conduct a detailed survey of the construction sea area; Step S2, construction process optimization: Develop a construction schedule; Step S3, tower crane foundation construction: Adopt a new type of precast combined foundation structure, which consists of multiple precast concrete pile shoes and connecting frames. Install the pile shoes and connecting frames in the surveyed sea area; Step S4, tower crane installation: Install the tower crane tower body, boom and counterweight arm; Step S5, tower crane stability monitoring: Install multiple hydraulic dampers around the tower crane tower body, and automatically adjust the damping force through the hydraulic system to resist the influence of horizontal loads such as sea currents and wind waves on the tower crane; Step S6, construction demolition: After the construction is completed, demolish the tower crane in the reverse order of installation.

2. The construction method of tower crane for an offshore high-pile beam-slab wharf according to claim 1, characterized in that, In the said step S1, it includes: Step S11, water depth and geological survey, including water depth, geological conditions, sea current velocity, tidal law, etc.; Step S12, selection of tower crane model, design the tower crane foundation and select the tower crane model according to the survey results; Step S13, assembly of tower crane components, assemble the main tower crane components such as tower body sections, booms and counterweight arms on land; Step S14, measurement of assembly accuracy, and quality inspection of each component to ensure compliance with the design requirements. At the same time, prepare the vessels, pile driving equipment, measuring instruments, etc. required for construction.

3. The construction method of tower crane for an offshore high-piled beam-slab wharf according to claim 1, characterized in that, In the said step S2, it includes: Step S21, formulation of construction schedule, formulate a detailed construction schedule, reasonably arrange the sequence and time of the tower crane hoisting various building materials and components, and avoid hoisting conflicts and too long waiting times; Step S22, adopt an information management system to track the progress of each construction process on the construction site in real time, and adjust the working tasks of the tower crane in a timely manner according to the actual situation to improve construction efficiency.

4. A tower crane construction method for an offshore high-piled beam-slab wharf according to claim 3, characterized in that, In the said step S2, in key processes such as the installation of wharf beams and slabs, closely cooperate with the tower crane hoisting operation, plan in advance the hoisting path and installation position of the beams and slabs, ensure that the tower crane hoists in place at one time, and reduce the secondary adjustment of the beams and slabs.

5. A construction method for tower cranes of an offshore high-pile beam-slab wharf according to claim 4, characterized in that, In the said step S3, it includes: Step S31, transportation of pile shoes, accurately place the precast pile shoes in the designed position through a positioning vessel; Step S32, installation of pile shoes, use a pile driving vessel to drive the pile shoes into the seabed soil layer; Step S33, pile shoe deviation correction, after the pile shoes are installed, detect the verticality of the pile shoes. After reaching the designed depth, set adjustable support devices inside the pile shoes for fine-tuning the foundation levelness during subsequent installation; Step S34, installation of connecting frames, connect each pile shoe into a whole; Step S35, adjustment of foundation levelness, after the connecting frames are installed, detect the levelness of the connecting frames, and adjust the connecting frames to make the foundation meet the levelness requirements.

6. The construction method of tower crane for an offshore high-pile beam-slab wharf according to claim 5, characterized in that In the said step S3, during the foundation construction process, monitor the verticality and penetration depth of the pile shoes in real time, and use sonar equipment to detect the changes in the seabed topography around the foundation to ensure the quality of foundation construction.

7. A construction method for tower cranes at an offshore high-piled beam-slab wharf according to claim 6, characterized in that, In the said step S4, it includes: Step S41, hoisting of tower body: Use a large hoisting vessel to hoist the bottom section of the assembled tower crane tower body above the foundation, accurately dock through the preset positioning device on the foundation, and then firmly connect the tower body and the foundation with high-strength bolts; Step S42, Tower body and foundation installation: Install the tower body segments one by one in the order from bottom to top. For each installed segment, use a total station to measure the verticality of the tower body, and make fine adjustments by adjusting the support device on the foundation to ensure that the deviation of the tower body verticality is controlled within a very small range; Step S43, Install the boom: When installing the boom, use a lifting tooling to ensure the stability of the boom during the lifting process and adjust the installation angle of the boom. Step S44, Install the counterweight arm: Use a lifting tooling to ensure the stability of the counterweight arm during the lifting process and accurately adjust the installation angle of the counterweight arm to meet the design requirements; Step S45, Test the electrical system: After the installation is completed, debug the electrical system of the tower crane; Step S46, Test the installation protection device: After the electrical system is debugged, test the safety protection device to ensure the normal operation of the tower crane.

8. A method for tower crane construction of an offshore high-piled beam-slab wharf according to claim 7, characterized in that, Step S5 includes: Step S51, Install hydraulic dampers: Install multiple hydraulic dampers around the tower body of the tower crane, and automatically adjust the damping force through the hydraulic system to resist the influence of horizontal loads such as ocean currents and wind waves on the tower crane; Step S52, Install a protective cofferdam: Set up a protective cofferdam around the tower crane foundation, using eco-friendly materials to reduce the disturbance to the marine ecological environment during the construction process, and at the same time buffer the impact of waves on the tower crane foundation to a certain extent; Step S53, Install data sensors: Install multiple data sensors around the tower body and the tower crane foundation; Step S54, Dynamic data warning: Use a real-time monitoring system to continuously monitor parameters such as the verticality of the tower crane, foundation settlement, and structural stress, and check whether the monitored data exceeds the warning value; Step S55, Manual remote control and prevention: When the monitored data exceeds the warning value, increase the pressure of the foundation support device or adjust the working state of the tower crane through manual remote control.

9. The construction method of the tower crane for an offshore high-piled beam-slab wharf according to claim 8, characterized in that Step S6 includes: Step S61, Remove the auxiliary facilities: Remove the auxiliary equipment such as hydraulic dampers, data sensors, and protective cofferdams; Step S62, Remove the counterweight arm: Use a crane ship to remove the counterweight arm in sequence; Step S63, Remove the boom: Use a crane ship to remove the boom; Step S64, Remove the tower body: Use a crane ship to remove the tower body segments in sequence; Step S65, Remove the connecting frame; Step S66, Remove the pile shoe.

10. A construction method of tower crane for an offshore high-piled beam-slab wharf according to claim 9, characterized in that, When removing the foundation, remove the precast pile shoes and connecting frames one by one to minimize the damage to the seabed ecological environment. The removed components should be transported back to land in time for cleaning, repair, and maintenance for reuse next time.

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