Offshore pile foundation retesting device

Abstract

The utility model relates to an offshore pile foundation retesting device which comprises a positioning support, a handheld global positioning system (GPS) and the positioning support, and the handheld GPS and the positioning support are installed on the positioning support. A hole for inserting the handheld GPS is formed in the middle of the positioning intubation tube; the square pipes are vertically fixed on the outer wall of the top end of the positioning insertion pipe; the top end of each inclined strut is fixed on the bottom wall of one square tube, and the other end of each inclined strut is fixed on the outer wall of the middle part of the positioning insertion tube; the top ends of the clamping plates are perpendicularly fixed to the bottom wall of the square pipe, and gaps among the clamping plates form clamping gaps for clamping the peripheral face of the top end of the offshore pile foundation. When the device is used, only the clamping plate of the positioning support needs to be fixed to the peripheral face of the top of the offshore pile foundation, then the handheld GPS is placed in the positioning insertion pipe of the positioning support to measure needed information, remeasurement of the offshore pile foundation is completed, the measurement process is very convenient, and the measurement precision is high.

Description

Technical Field

[0001] This utility model relates to the field of post-completion re-testing technology for offshore photovoltaic pile foundations, specifically a re-testing device for offshore pile foundations. Background Technology

[0002] The construction of offshore photovoltaic power plants helps to optimize and adjust the energy structure, promote the development of clean energy, and reduce dependence on fossil fuels.

[0003] The allowable deviation requirements for offshore photovoltaic (PV) pile foundation driving are: absolute position deviation <150m; elevation deviation <50mm; and axial tilt deviation <1%. These requirements necessitate extremely high precision, and post-construction re-measurement is required. Since the pile top is approximately 12m above the water surface after driving, and the pile diameter is 1m, post-construction re-measurement presents a significant challenge. Conventional methods involve using handheld GPS stations on the elevator platform of the piling vessel to measure displacement, elevation, and verticality. However, this approach suffers from weak signals, time-consuming re-measurements, and poor stability, resulting in unsatisfactory results and unreliable data. Ensuring the accuracy and speed of pile foundation planar re-measurement has become a critical challenge for the measurement and control of offshore PV pile foundations.

[0004] Therefore, we have made technical improvements to the existing equipment to solve the current problems faced in the measurement and retesting control of offshore photovoltaic pile foundations. Utility Model Content

[0005] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a marine pile foundation retesting device that is easy to operate, applicable to different pile diameters at sea, has high retesting stability, and can greatly improve the retesting accuracy.

[0006] The technical problem to be solved by this utility model is achieved through the following technical solution: a marine pile foundation re-measurement device, which includes a positioning bracket and a handheld GPS and a positioning bracket installed on the positioning bracket, wherein the positioning bracket includes;

[0007] The positioning tube is set vertically, with a hole in the middle for inserting a handheld GPS device;

[0008] Several square tubes are horizontally arranged and vertically fixed to the outer wall of the top end of the positioning insertion tube.

[0009] Several diagonal braces are set horizontally, with the top of each brace fixed to the bottom wall of one of the square tubes and the other end fixed to the middle outer wall of the positioning tube.

[0010] Several clamping plates are vertically arranged, with the top of the clamping plates fixed vertically to the bottom wall of the square tube. The gaps between the clamping plates form a clamping gap for clamping the outer periphery of the top of the marine pile foundation.

[0011] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the offshore pile foundation re-measuring device, the four square tubes are vertically arranged between the two adjacent square tubes.

[0012] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the offshore pile foundation re-measuring device, the number of the diagonal braces and the number of the square tubes are one-to-one corresponding.

[0013] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the offshore pile foundation re-measuring device, the top end of the diagonal brace is fixed on the middle bottom wall of the square tube, and the bottom end of the diagonal brace is fixed on the middle outer wall of the positioning pipe.

[0014] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the offshore pile foundation re-measuring device, the number of the clamping plates and the number of the square tubes are one-to-one corresponding.

[0015] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the offshore pile foundation re-measuring device, the clamping plate is a steel plate, and the steel plate is perpendicular to the axis of the square tube.

[0016] Compared with the prior art, the offshore pile foundation re-measuring device has the beneficial technical effects that: when the device is used, only the clamping plate of the positioning support needs to be fixed on the top outer circumferential surface of the offshore pile foundation, and then the handheld GPS is placed in the positioning pipe of the positioning support, so that the required information can be measured by the handheld GPS, and the re-measuring of the offshore pile foundation is completed, the measuring process is very convenient, and the measuring precision is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a front view structural schematic diagram of the utility model;

[0018] Fig. 2 It is a top view structural schematic diagram of the utility model.

[0019] The reference signs are as follows: 1, positioning pipe; 2, square tube; 3, diagonal brace; 4, clamping plate; 5, pile foundation. DETAILED DESCRIPTION

[0020] The specific technical scheme of the utility model is further described below with reference to the drawings, so that the person skilled in the art can further understand the utility model without limiting the rights thereof.

[0021] Example 1, refer to Figs. 1-2The marine pile re-measuring device comprises a positioning support and a handheld GPS (not shown in the figure) and the positioning support, wherein the handheld GPS is a prior art and its specifications can be selected according to the use requirement, so the specific specifications are not described herein again, and the positioning support comprises;

[0022] The positioning pipe 1 is formed in a substantially circular tube structure, the size of which can be selected according to the use requirement, so the specific size is not described herein again, and the positioning pipe 1 is vertically arranged and has a hole for inserting the handheld GPS in the middle part thereof;

[0023] The plurality of square tubes 2 are formed in a substantially square tube structure, the size of which can be selected according to the use requirement, so the specific size is not described herein again, and the square tubes 2 are horizontally arranged and vertically fixed to the top end outer wall of the positioning pipe 1, wherein the square tubes 2 are provided in four, and two adjacent square tubes 2 are vertically arranged;

[0024] The plurality of inclined braces 3 are formed in a substantially steel structure, the size of which can be selected according to the use requirement, so the specific size is not described herein again, and the inclined braces 3 are horizontally arranged, the top end of each inclined brace 3 is fixed to the bottom wall of one of the square tubes 2, and the other end is fixed to the middle part outer wall of the positioning pipe 1, wherein the number of the inclined braces 3 corresponds to the number of the square tubes 2, the top end of the inclined brace 3 is fixed to the middle part bottom wall of the square tube 2, and the bottom end of the inclined brace 3 is fixed to the middle part outer wall of the positioning pipe 1;

[0025] The plurality of clamping plates 4 are formed in a substantially square plate structure, the size of which can be selected according to the use requirement, so the specific size is not described herein again, and the clamping plates 4 are vertically arranged, the top end of the clamping plate 4 is vertically fixed to the bottom wall of the square tube 2, the gap between the plurality of clamping plates 4 forms a clamping gap for clamping the top end outer peripheral surface of the marine pile 5, the clamping gap is the top end outer diameter of the marine pile 5, the number of the clamping plates 4 corresponds to the number of the square tubes 2, and the clamping plates 4 are steel plates, and the steel plates are perpendicular to the axis of the square tubes 2.

[0026] The re-measuring principle of the marine pile re-measuring device is as follows:

[0027] During the pile re-measuring operation, the clamping plates 4 of the positioning support are fixed to the top peripheral surface of the marine pile 5, and then the handheld GPS is placed in the positioning pipe 1 of the positioning support, so that the required information can be measured by the handheld GPS, thereby completing the re-measuring of the marine pile 5, and the measuring process is very convenient and the measuring accuracy is high.

[0028] The advantages of the marine pile re-measuring device in re-measuring the marine pile are as follows:

[0029] (1) Simple structure and convenient to use: the offshore pile foundation 5 re-measuring device realizes the simplification of the structure through the combination of handheld GPS and positioning support, making the operation more convenient, and the design of the positioning support enables the handheld GPS to be stably fixed on the device, facilitating accurate measurement;

[0030] (2) Good precision: because the sizes of the square tubes 2 are the same, and the positioning insert tube 1 is at the center of the four square tubes 2, when the handheld GPS is fixed at the top center of the offshore pile foundation 5 through the positioning support, it can obtain a more accurate measurement structure to the greatest extent, thereby meeting the needs of offshore pile foundation 5 re-measuring;

[0031] (3) Strong adaptability: when facing re-measuring operations of different pile diameters, only the distance between the clamping plates 4 needs to be changed, which can be applied to various specifications of pile foundations 5, improving its versatility and practicality;

[0032] (4) Low cost and good effect: compared with the method of establishing offshore stable base station reference points, the re-measuring device has lower production cost, reducing the economic burden of re-measuring operations; at the same time, the device can still provide good re-measuring effect while keeping low cost, meeting the engineering needs and improving the re-measuring efficiency to some extent;

[0033] That is to say, compared with the method of establishing offshore stable base station reference points, the re-measuring method of pile foundation re-measuring operation through the offshore pile foundation re-measuring device avoids the cumbersome process of base station construction and maintenance, thereby saving time and resources.

Claims

1. An offshore pile foundation re-measurement device, characterized in that: It comprises a positioning support and a handheld GPS and positioning support installed on the positioning support, wherein the positioning support comprises; A positioning pipe is vertically arranged, and a hole is formed in the middle part of the pipe for inserting the handheld GPS; A plurality of square tubes are horizontally arranged and vertically fixed on the outer wall of the top end of the positioning pipe; A plurality of inclined struts are horizontally arranged, and the top end of each inclined strut is fixed on the bottom wall of one of the square tubes and the other end is fixed on the outer wall of the middle part of the positioning pipe; A plurality of clamping plates are vertically arranged, and the top end of the clamping plate is vertically fixed on the bottom wall of the square tube, and the gap between the clamping plates forms a clamping gap for clamping the outer circumferential surface of the top end of the offshore pile foundation.

2. A device for re-surveying offshore pile foundations according to claim 1, characterised in that: The square tube is provided with four square tubes, and the two adjacent square tubes are vertically arranged.

3. A device for re-surveying offshore pile foundations according to claim 1, characterised in that: The number of the inclined struts corresponds to the number of the square tubes.

4. A device for re-surveying offshore pile foundations according to claim 1, characterised in that: The top end of the inclined strut is fixed on the middle bottom wall of the square tube, and the bottom end of the inclined strut is fixed on the middle outer wall of the positioning pipe.

5. A device for re-surveying offshore pile foundations according to claim 1, characterised in that: The number of the clamping plates corresponds to the number of the square tubes.

6. A device for re-surveying offshore pile foundations according to claim 1, characterised in that: The clamping plate is a steel plate, and the steel plate is perpendicular to the axis of the square tube.

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