A hoisting positioning device and positioning method for strong tidal surge areas

Abstract

The present invention relates to the field of construction, and specifically relates to a hoisting positioning device and positioning method for a strong tidal surge area, comprising a flatbed barge, a crawler crane, a first RTK measuring instrument, a second RTK measuring instrument, and a cockpit hoisting positioning control instrument. The device is equipped with the first RTK measuring instrument and the second RTK measuring instrument, and can accurately obtain the position information of the crawler crane in real time. A preset hoisting grid map is imported into the cockpit hoisting positioning control instrument, and the position signal of the RTK measuring instrument is obtained in real time by the instrument. The arm posture can be accurately adjusted to move the signal mark to the target grid to achieve precise positioning. Compared with the traditional method of measuring the hoisting position by human judgment and simple marking, the hoisting accuracy is greatly improved, and the landing point of the hoisting can be effectively controlled, thereby avoiding problems such as holes in the embankment protection surface caused by inaccurate positioning, and ensuring the safety and durability of the embankment reinforcement.

Description

Technical Field

[0001] The present invention relates to the field of building construction, and in particular to a strong tidal surge area hoisting positioning device and a positioning method. Background Art

[0002] With the rapid development of water conservancy and hydropower construction, in order to make up for the weak links in flood control and promote high-quality development of water conservancy, in the seawall shore improvement and reinforcement project, the construction of embankment footing is the key to the construction of seawall projects.

[0003] The seawall is located in the Qiantang River's strong tidal surge area and at the confluence of the Three Rivers Estuary. Affected by strong tidal surges, the flow velocity and direction change irregularly, the hydrology is complex, resulting in difficulty in positioning ships and extremely unstable hulls. Water hoisting operations are difficult to carry out. Relying solely on traditional manual judgment and simple marking to measure the hoisting position is difficult to control the hoisting landing point. If there is a strong tidal surge, a large flow velocity, a change in flow direction, an inaccurate net bag hoisting point, and leaks in the embankment foot protection surface, it will seriously affect the safety and durability of the embankment foot reinforcement. In order to solve the above technical problems, a hoisting positioning device and positioning method for strong tidal surge areas are proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a strong tidal surge area hoisting positioning device and positioning method, which solves the problem of how to ensure the accurate hoisting of the strong tidal surge construction net bag in the background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A strong tidal zone hoisting and positioning device, comprising:

[0007] flatbed barge;

[0008] a crawler crane, the crawler crane being arranged on the deck of the flatbed barge;

[0009] a first RTK surveying instrument, wherein the first RTK surveying instrument is arranged on the top of the crawler crane;

[0010] a second RTK surveying instrument, the second RTK surveying instrument being arranged on the top of the crawler crane; and

[0011] A cockpit hoisting positioning control instrument is arranged in the cockpit of the crawler crane.

[0012] Preferably, it also includes a fixed locking ring and two I-beams, the fixed locking ring is fixedly arranged on the deck of the flat barge, the two I-beams pass through the fixed locking ring respectively, and the two I-beams are fixedly connected to the front and rear crawlers of the crawler crane respectively to fix the crawler crane on the deck of the flat barge.

[0013] Preferably, it also includes a first support frame and a second support frame, the first support frame is fixedly arranged on one side of the top of the crawler crane, the first RTK measuring instrument is fixedly arranged on the first support frame, the second support frame is fixedly arranged on the other side of the top of the crawler crane, and the second RTK measuring instrument is fixedly arranged on the second support frame, the first support frame and the second support frame are both made of angle steel, and the first support frame and the second support frame are respectively welded and fixed to the top steel plate on the top of the crawler crane.

[0014] Preferably, the fixing lock rings are formed by welding steel sections, and the fixing lock rings are arranged at intervals along the length direction of the deck of the flat barge.

[0015] Preferably, the first support frame and the second support frame are arranged in parallel on the top of the crawler crane, and the first support frame and the second support frame have the same height.

[0016] Preferably, a horizontal mounting plane is provided on the top of the crawler crane, and the first support frame and the second support frame are both vertically fixed on the horizontal mounting plane.

[0017] Preferably, the front and rear crawlers of the crawler crane are respectively provided with fixing holes adapted to the I-beam, and the two ends of the I-beam are inserted into the fixing holes after passing through the fixing lock ring and fixed by bolts.

[0018] Preferably, the first support frame and the second support frame each include a horizontal support portion and a vertical connection portion, the horizontal support portion is used to carry the RTK measuring instrument, and the vertical connection portion is welded and fixed to the top of the crawler crane.

[0019] Preferably, after the crawler crane is fixed by the fixing locking ring and the I-beam, the fuselage axis thereof is parallel to the length direction of the deck of the flat barge.

[0020] A method for hoisting and positioning in a strong tidal surge area comprises the following steps:

[0021] S1: The flatbed barge is driven to the construction area and anchored. The crawler crane is fixed to the deck via the fixing lock ring and the I-beam. When fixing the crawler crane, two I-beams are passed through the fixing lock rings on the deck, and the ends of the I-beams are connected to the fixing holes of the front and rear crawler tracks of the crawler crane via bolts.

[0022] S2: Installing a first RTK measuring instrument and a second RTK measuring instrument on the top of the crawler crane through the first support frame and the second support frame respectively. The first support frame and the second support frame are arranged parallel to the top of the crawler crane, and both are at the same height and are vertically fixed on the horizontal mounting plane on the top;

[0023] S3: importing a preset hoisting grid map into the cockpit hoisting positioning control instrument, wherein the grid map is divided into positioning grids corresponding to the construction area, and the grid size of the hoisting grid map is adapted to the signal coverage range of the RTK measuring instrument on the top of the crawler crane;

[0024] S4: operating the crawler crane boom to move, obtaining the position signal of the RTK measuring instrument in real time through the control instrument, adjusting the boom posture so that the signal mark moves into the target grid, and controlling the rotation, extension and pitch of the boom by observing the relative position of the signal mark and the target grid displayed by the control instrument when adjusting the boom posture;

[0025] S5: When the signal mark coincides with the target grid, the net bag is controlled to sink and unhook, completing a single lifting operation;

[0026] S6: Repeat steps S4-S5 until all net bags are placed according to the preset grid.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The device is equipped with a first RTK measuring instrument and a second RTK measuring instrument, which can accurately obtain the position information of the crawler crane in real time. The preset lifting grid map is imported into the lifting positioning control instrument in the cockpit. The position signal of the RTK measuring instrument is obtained in real time through the instrument. The arm posture can be accurately adjusted to move the signal mark to the target grid to achieve precise positioning. Compared with the traditional method of measuring the lifting position by human judgment and simple marking, the lifting accuracy is greatly improved, and the landing point of the lifting can be effectively controlled, avoiding problems such as loopholes in the embankment protection surface caused by inaccurate positioning, thereby ensuring the safety and durability of the embankment reinforcement.

[0029] 2. In strong tidal surge areas, the flow velocity and direction change irregularly, the hydrology is complex, the ship positioning is difficult, and the hull is unstable. This device fixes the crawler crane on the flatbed barge and uses the connection between the fixed lock ring and the I-beam to make the axis of the crawler crane body parallel to the length direction of the flatbed barge, thereby enhancing the overall stability. The hoisting operation is carried out on this stable basis, which can better adapt to the complex hydrological environment of strong tidal surge areas. Compared with traditional methods, it improves the feasibility and safety of hoisting operations under harsh conditions.

[0030] 3. The clear steps and operating procedures in the positioning method, such as repeatedly adjusting the arm posture so that the signal mark coincides with the target grid before lifting, can make the lifting operation more standardized and standardized. Compared with the traditional lifting method with greater randomness, it reduces repeated adjustments and ineffective operations caused by inaccurate positioning, improves construction efficiency, and speeds up the progress of projects such as embankment reinforcement.

[0031] 4. Traditional manual judgment of the lifting position has large errors. However, this device minimizes the influence of human factors through advanced measuring instruments (RTK measuring instruments) and control instruments. The operator only needs to accurately control the rotation, extension and pitch of the boom according to the relative position of the signal mark displayed by the control instrument and the target grid. This reduces the lifting deviation caused by human judgment errors and improves the quality of the lifting operation.

[0032] 5. The fixed locking rings are welded from steel sections and spaced apart along the length of the flatbed barge. Two I-beams pass through the fixed locking rings and are fixedly connected to the crawler crane. This fixing method enhances the stability of the connection between the crawler crane and the flatbed barge. It can effectively prevent the crawler crane from shaking or shifting under the impact of strong tidal surges, ensuring the safety of the lifting operation. Compared with traditional methods, it greatly improves the stability of the device in complex environments.

[0033] 6. The structural design of the entire positioning device is reasonable, and the installation and connection methods of each component are clear. The first and second support frames are made of angle steel and welded to the top of the crawler crane, making them easy to install. During operation, the use of the cockpit hoisting positioning control instrument enables the operator to intuitively obtain position information and make operational adjustments, which is convenient for management and control. Compared with traditional complex and difficult to accurately grasp hoisting methods, this reduces the difficulty of operation and improves management efficiency.

[0034] 7. Precise positioning and stable device ensure that the net bag can be accurately placed in the preset grid position, making the embankment foot protection surface more uniform and firm, avoiding protection loopholes caused by inaccurate lifting points, thereby improving the quality of the embankment foot reinforcement project, extending the service life of the project, and reducing the subsequent maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of an embodiment of a net bag hoisting device according to the present invention;

[0036] Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0037] Figure 3 For the present invention Figure 1 Schematic diagram of the local enlarged structure at B in the middle;

[0038] Figure 4 This is the hoisting operation control diagram in the HIMAX construction positioning software of the present invention;

[0039] Figure 5 For the present invention Figure 4 Schematic diagram of the local enlarged structure at point C in the middle.

[0040] Among them: 1. Flatbed barge; 2. Crawler crane; 3. First RTK measuring instrument; 4. Second RTK measuring instrument; 5. Cockpit hoisting positioning control instrument; 6. First support frame; 7. Second support frame; 8. Fixed locking ring; 9. I-beam. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] See also Figure 1-5 A lifting and positioning device for a strong tidal surge area includes a flat barge 1, a crawler crane 2, a first RTK measuring instrument 3, a second RTK measuring instrument 4 and a cockpit lifting and positioning control instrument 5.

[0043] The lifting and positioning device in the strong tidal surge area is mainly composed of a flatbed barge 1, a crawler crane 2, a first RTK measuring instrument 3, a second RTK measuring instrument 4, a cockpit lifting and positioning control instrument 5, a fixed locking ring 8, an I-beam 9, a first support frame 6 and a second support frame 7. These components work together to form an efficient and accurate lifting and positioning system.

[0044] The flatbed barge 1 serves as the operating platform of the entire device and plays an indispensable supporting role. In actual application scenarios, such as the Qiantang Jiangxi Jiangtang Wenyan section seawall upgrading and reinforcement project, a 500-ton flatbed barge 1 was selected. This selection was based on project requirements. The alloy steel wire mesh bags used in the project are large in size and heavy in weight, with a single mesh bag weighing ≥5t. The flatbed barge 1 is required to have sufficient carrying capacity and stability to ensure that it can safely carry the crawler crane 2 and other equipment in a strong tidal environment, and provide a stable operating basis for the lifting operation. Its spacious deck space provides sufficient space for the installation and operation of the crawler crane 2, ensuring the smooth progress of the lifting operation.

[0045] The crawler crane 2 is the core equipment for lifting the net bag. A 50-ton crawler crane 2 is used in this device. It is set on the deck of the flatbed barge 1 and is firmly connected to the flatbed barge 1 through a fixed locking ring 8 and two I-beams 9. This connection method enables the crawler crane 2 to remain stable during the lifting operation, effectively avoiding the lifting error caused by the shaking of the ship caused by strong tidal surges. The powerful lifting capacity of the crawler crane 2 can easily handle alloy steel wire net bags weighing ≥5t in the project, and its flexible arm operation performance makes it possible to accurately position the net bag.

[0046] The first RTK measuring instrument 3 and the second RTK measuring instrument 4 play a key role in the hoisting positioning process. Both are K20 high-precision split RTKs with excellent measurement performance. They can receive five-star sixteen-frequency signals, with a planar accuracy of up to centimeter level, and have precise positioning and orientation functions. The first RTK measuring instrument 3 is mainly responsible for positioning, accurately obtaining the position information of the top of the crane boom, while the second RTK measuring instrument 4 focuses on orientation, providing accurate data for adjusting the direction of the boom. These two measuring instruments are respectively installed on the first support frame 6 and the second support frame 7 on both sides of the top of the crawler crane 2. By monitoring the position and direction changes of the crane boom in real time, they provide accurate data support for the cockpit hoisting positioning control instrument 5 to ensure the accuracy of the hoisting operation.

[0047] The cockpit hoisting positioning control instrument 5 is installed in the cockpit of the crawler crane 2 and is a key device for the operator to control the hoisting operation. It uses the Windows operating system and has built-in HIMAX construction positioning software, which has powerful data analysis and display capabilities. Before construction, technicians import a detailed construction hoisting grid diagram (such as the common grid size of 2m×2m) into the software system. During construction, the instrument is connected to two RTK surveying instruments via two communication electrical lines, receiving real-time positioning information transmitted by the surveying instruments and converting it into intuitive images and data for display on the host terminal display. Based on this display information, the operator can clearly understand the real-time position of the RTK surveying instrument signal mark on the top of the boom, thereby accurately operating and controlling the boom movement of the crawler crane 2, ensuring that the signal mark moves precisely to the specified grid position and achieving accurate placement of the net bag. The cockpit hoisting positioning control instrument 5 cited in this embodiment is a monitoring system for the real-time movement of suspended objects during offshore platform hoisting construction, with patent authorization publication number CN106405598B.

[0048] The fixing lock ring 8 and the two I-beams 9 are important components to ensure that the crawler crane 2 is firmly installed on the deck of the flatbed barge 1. The fixing lock ring 8 is welded from steel sections and is spaced apart along the length of the flatbed barge 1, providing a stable connection point for the I-beams 9. The two 18# I-beams 9 pass through the fixing lock ring 8 respectively, and the two ends are inserted into the fixing holes pre-opened on both sides of the crawler crane 2 and fastened with bolts. This connection method is not only structurally stable, but also easy to install and disassemble. It can quickly complete the fixing and disassembly of the crawler crane 2 in different construction environments, thereby improving construction efficiency. At the same time, the synergistic effect of the fixing lock ring 8 and the I-beams 9 enables the crawler crane 2 to maintain a stable working state under the ship shaking environment caused by strong tidal surges, effectively reducing lifting errors.

[0049] The first support frame 6 and the second support frame 7 are respectively fixed on both sides of the top of the crawler crane 2, and are used to carry the first RTK measuring instrument 3 and the second RTK measuring instrument 4. They are both made of 5# angle steel and have good strength and stability. The support frame includes a horizontal support part and a vertical connection part. The horizontal support part provides a stable installation plane for the RTK measuring instrument to ensure that the measuring instrument will not shake during operation. The vertical connection part is welded and fixed to the top steel plate on the top of the crawler crane 2 to ensure a close connection between the support frame and the crane. The first support frame 6 and the second support frame 7 are arranged in parallel and have the same height, and are both vertically fixed on the horizontal installation plane on the top of the crawler crane 2. This design enables the two RTK measuring instruments to be in the best measurement position, ensuring the accuracy and reliability of the measurement data.

[0050] Before carrying out the lifting operation, the flatbed barge 1 must first be accurately driven into the construction area and anchored. This step is crucial because only when the flatbed barge 1 is stably fixed can the subsequent equipment installation and lifting operations be carried out safely and smoothly. In strong tidal areas, the water flow is turbulent and the ship positioning is difficult. The operator needs to have rich experience and precise operating skills. By anchoring, the flatbed barge 1 can be firmly fixed in the predetermined position to effectively resist the impact of the water flow caused by strong tidal surges and ensure that the ship will not drift or shake during the construction process.

[0051] Fixing the crawler crane 2 is a key link to ensure the safety and accuracy of the lifting operation. Two 18# I-beams 9 are used to pass through the fixing lock ring 8 on the deck of the flat barge 1, and then the two ends of the I-beam 9 are inserted into the fixing holes on both sides of the crawler crane 2 and fastened with bolts. During the installation process, it is necessary to strictly follow the operating procedures to ensure that the connection between the I-beam 9 and the fixing lock ring 8 and the fixing hole is tight and reliable. At the same time, the position and posture of the crawler crane 2 should be checked to ensure that its fuselage axis is parallel to the length direction of the flat barge 1. This can ensure the stability of the crane during operation and reduce the lifting error caused by the tilt of the fuselage.

[0052] The welding and fixation of the first support frame 6 and the second support frame 7 is an important prerequisite for ensuring the measurement accuracy of the RTK measuring instrument. The support frame is made of 5# angle steel. Before welding, the support frame must be strictly quality inspected to ensure that its dimensional accuracy and material quality meet the requirements. When welding, the vertical connection part of the support frame is welded to the top steel plate on the top of the crawler crane 2. The welding quality must be guaranteed during the welding process, and appropriate welding technology and parameters must be used to ensure that the weld is firm and free of cracks. After welding is completed, the weld must be inspected to ensure that the welding quality meets the relevant standards to avoid the support frame loosening or falling off during use, which affects the measurement accuracy of the RTK measuring instrument.

[0053] Install the first RTK measuring instrument 3 and the second RTK measuring instrument 4 on the horizontal support parts of the first support frame 6 and the second support frame 7 respectively. During the installation process, ensure that the measuring instruments are firmly installed and the connection lines are correct. After the installation of the measuring instruments is completed, debug and calibrate them to ensure that they can work normally, accurately receive satellite signals, and accurately transmit the measurement data to the cockpit-mounted positioning control instrument 5. During the debugging process, check the positioning accuracy, orientation accuracy and data transmission stability of the measuring instruments. If there are any problems, adjust and repair them in time.

[0054] The installation of the cockpit hoisting positioning control instrument 5 must ensure that its location is convenient for the operator to observe and operate. After installing the instrument in a suitable position in the cockpit, connect the communication electrical line with the RTK surveying instrument to ensure smooth data transmission. After the installation is completed, the instrument must be debugged to check whether the software system is operating normally, whether the display interface is clear, and whether the data display is accurate. At the same time, the operator must be trained to make him familiar with the operating procedures and functions of the instrument and be able to perform hoisting operations skillfully according to the information displayed on the instrument.

[0055] The installation of communication electrical lines must be carried out strictly in accordance with wiring specifications to ensure that the lines are connected correctly and firmly to avoid problems such as line short circuit and open circuit. After the line installation is completed, the line must be tested to check the stability and accuracy of data transmission to ensure that the data collected by the RTK survey instrument can be transmitted to the cockpit hoisting positioning control instrument 5 in a timely and accurate manner to provide reliable data support for the hoisting operation. During the test, different working environments and working conditions must be simulated to check the performance of the line under various conditions. If there is any problem, it must be promptly investigated and repaired.

[0056] Before construction begins, technicians must import detailed lifting positioning grid control data into the HIMAX construction positioning software of the cockpit lifting positioning control instrument 5. This data includes the coordinate information of the construction area, the size and number of the grid, etc. By importing this data, the software system can generate an accurate lifting positioning grid map. During the construction process, the operator can accurately control the movement of the crane arm according to the markings and data on the grid map, and accurately lift the net bag to the designated position.

[0057] The first RTK measuring instrument 3 and the second RTK measuring instrument 4 respectively monitor the position and direction of the top of the crane boom in real time. By receiving satellite signals and using high-precision positioning algorithms, they can accurately calculate their own position and direction information. During the lifting operation, as the crane boom moves, the RTK measuring instrument continuously updates the measurement data and transmits this data in real time to the cockpit lifting positioning control instrument 5 through the communication electrical line.

[0058] After the cockpit hoist positioning control instrument 5 receives the data transmitted by the RTK measuring instrument, the HIMAX construction positioning software analyzes and processes the data. Based on the pre-imported hoist positioning grid control data, the software compares the position information of the RTK measuring instrument on the top of the boom with the specified grid position, and calculates the direction and distance that the boom needs to be adjusted. The software then displays this information on the host terminal display in the form of intuitive images and data, providing clear operating instructions to the driver.

[0059] The driver controls the movement of the boom of the crawler crane 2 according to the information displayed on the display screen of the lifting positioning control instrument 5 in the cockpit. By adjusting the length, angle and rotation direction of the boom, the signal mark of the RTK measuring instrument on the top of the boom gradually approaches and eventually moves to the specified grid position. During the operation, the driver should pay close attention to the changes in the information on the display screen and perform precise operations based on real-time data to ensure that the net bag can be accurately lifted to the predetermined position.

[0060] The method for hoisting and positioning in a strong tidal surge area includes the following steps:

[0061] S1: The flatbed barge 1 is driven to the construction area and anchored. The crawler crane 2 is fixed to the deck via the fixing lock ring 8 and the I-beam 9. When fixing the crawler crane 2, two I-beams 9 are respectively passed through the fixing lock ring 8 on the deck, and the ends of the I-beams 9 are connected to the fixing holes of the front and rear crawler tracks of the crawler crane 2 via bolts.

[0062] S2: Install the first RTK measuring instrument 3 and the second RTK measuring instrument 4 on the top of the crawler crane 2 through the first support frame 6 and the second support frame 7 respectively. The first support frame 6 and the second support frame 7 are arranged parallel to the top of the crawler crane 2, and both are at the same height and are vertically fixed on the horizontal installation plane on the top;

[0063] S3: importing a preset hoisting grid map into the cockpit hoisting positioning control instrument 5, wherein the grid map is divided into positioning grids corresponding to the construction area, and the grid size of the hoisting grid map is adapted to the signal coverage range of the RTK measuring instrument on the top of the crawler crane 2;

[0064] S4: operating the boom of crawler crane 2 to move, obtaining the position signal of the RTK measuring instrument in real time through the control instrument, adjusting the boom posture so that the signal mark moves into the target grid, and controlling the rotation, extension and pitch of the boom by observing the relative position of the signal mark and the target grid displayed by the control instrument when adjusting the boom posture;

[0065] S5: When the signal mark coincides with the target grid, the net bag is controlled to sink and unhook, completing a single lifting operation;

[0066] S6: Repeat steps S4-S5 until all net bags are placed according to the preset grid.

[0067] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lifting and positioning device for strong tidal areas, characterized in that: include: Flatbed barge (1); A crawler crane (2), the crawler crane (2) being arranged on the deck of the flatbed barge (1); a first RTK measuring instrument (3), the first RTK measuring instrument (3) being arranged on the top of the crawler crane (2); A second RTK measuring instrument (4), wherein the second RTK measuring instrument (4) is arranged on the top of the crawler crane (2); as well as A cockpit hoisting positioning control instrument (5), the cockpit hoisting positioning control instrument (5) being arranged in the cockpit of the crawler crane (2); A fixed locking ring (8) and two I-beams (9), wherein the fixed locking ring (8) is fixedly arranged on the deck of the flat barge (1), the two I-beams (9) respectively pass through the fixed locking ring (8), and the two I-beams (9) are respectively fixedly connected to the crawler crane (2) to fix the crawler crane (2) on the deck of the flat barge (1); It also includes a first support frame (6) and a second support frame (7), wherein the first support frame (6) is fixedly arranged on one side of the top of the crawler crane (2), the first RTK measuring instrument (3) is fixedly arranged on the first support frame (6), the second support frame (7) is fixedly arranged on the other side of the top of the crawler crane (2), and the second RTK measuring instrument (4) is fixedly arranged on the second support frame (7), the first support frame (6) and the second support frame (7) are both made of angle steel, and the first support frame (6) and the second support frame (7) are respectively welded and fixed to the top steel plate on the top of the crawler crane (2); The fixed locking ring (8) is welded from section steel, and the fixed locking ring (8) is arranged at intervals along the length direction of the flat barge (1); The first support frame (6) and the second support frame (7) are arranged in parallel on the top of the crawler crane (2), and the first support frame (6) and the second support frame (7) have the same height.

2. The strong tidal zone hoisting and positioning device according to claim 1, characterized in that: A horizontal mounting plane is provided on the top of the crawler crane (2), and the first support frame (6) and the second support frame (7) are both vertically fixed on the horizontal mounting plane.

3. The strong tidal zone hoisting and positioning device according to claim 1, characterized in that: Fixing holes adapted to the I-beam (9) are respectively provided on both sides of the crawler crane (2); both ends of the I-beam (9) pass through the fixing lock ring (8), are inserted into the fixing holes, and are fixed by bolts.

4. The strong tidal zone hoisting and positioning device according to claim 1, characterized in that: The first support frame (6) and the second support frame (7) both comprise a horizontal support portion and a vertical connection portion, the horizontal support portion being used to carry the first RTK measuring instrument (3) and the second RTK measuring instrument (4), and the vertical connection portion being welded and fixed to the top of the crawler crane (2).

5. The strong tidal zone hoisting and positioning device according to claim 1, characterized in that: After the crawler crane (2) is fixed by the fixing lock ring (8) and the I-beam (9), its fuselage axis is parallel to the length direction of the flat barge (1).

6. The positioning method for a strong tidal surge area hoisting and positioning device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: The flatbed barge (1) is driven to the construction area and anchored, and the crawler crane (2) is fixed on the deck through the fixing lock ring (8) and the I-beam (9). When fixing the crawler crane (2), two I-beams (9) are respectively passed through the fixing lock ring (8) on the deck, and the two ends of the I-beams (9) are connected to the fixing holes of the front and rear crawlers of the crawler crane (2) by bolts; S2: A first RTK measuring instrument (3) and a second RTK measuring instrument (4) are respectively installed on the top of the crawler crane (2) through the first support frame (6) and the second support frame (7), the first support frame (6) and the second support frame (7) are arranged in parallel on the top of the crawler crane (2), the two have the same height and are both vertically fixed on the horizontal installation plane on the top; S3: importing a preset hoisting grid diagram into the cockpit hoisting positioning control instrument (5), wherein the grid diagram is divided into positioning grids corresponding to the construction area, and the grid size of the hoisting grid diagram is adapted to the signal coverage range of the RTK measuring instrument on the top of the crawler crane (2); S4: Operate the crawler crane (2) to move the boom, obtain the position signal of the RTK measuring instrument in real time through the control instrument, adjust the boom posture so that the signal mark moves to the target grid, and control the rotation, extension and pitch of the boom by observing the relative position of the signal mark and the target grid displayed by the control instrument when adjusting the boom posture; S5: When the signal mark coincides with the target grid, the net bag is controlled to sink and unhook, completing a single lifting operation; S6: Repeat steps S4-S5 until all net bags are placed according to the preset grid.

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