A steel pipe pile deformation detection device and detection method

Abstract

The present application relates to a kind of steel pipe pile deformation detection device and detection method, including first walking mechanism, second walking mechanism, walking adjusting mechanism, detection mechanism, scanning mechanism and signal processing mechanism.The second walking mechanism can adjust the radial telescopic amount along the steel pipe pile, to ensure that the detection device is stably wall-walking, improve the security of detection device, and can accurately locate the deformation area of the steel pipe pile wall, and the deformation area is rotated and scanned, which improves the detection efficiency, timely finds the deformation area of the steel pipe pile wall, and can also quickly complete the data acquisition of deformation area by rotating and scanning, real-time data is transmitted to system for processing, generates deformation cloud picture, provides basis for fast and accurate processing of deformation steel pipe pile wall, and guarantees bridge pile foundation construction quality.

Description

Technical Field

[0001] This invention relates to the field of bridge steel pipe pile foundation construction, and in particular to a deformation detection device and method for large-diameter steel pipe piles. Background Technology

[0002] In the construction of modern cross-sea bridges, driven steel pipe piles are a commonly used foundation method, offering advantages over bored pile construction such as higher work efficiency, fewer supporting structures, and less environmental pollution. Furthermore, as bridge scale continues to increase, the diameter and length of steel pipe piles are gradually increasing, and the driving depth is becoming increasingly deeper. Some high-speed railway bridges have steel pipe piles with a diameter of 2.2m, a driving depth of 100m, and an inclination ratio of 5:1. The driving energy of steel pipe piles is increasing, and the deformation problems they cause are becoming more prominent. Deformation of the steel pipe piles directly affects the lowering of the reinforcing cage and the thickness of the concrete cover, compromising the quality of the pile foundation.

[0003] In related technologies, there is a lack of effective and safe detection methods for steel pipe pile deformation. The method of divers searching for deformation in mud is both dangerous and inefficient, and cannot accurately provide data such as the area and depth of the deformation zone. Therefore, there is an urgent need for a deformation detection device and its supporting detection method suitable for large-diameter steel pipe piles, which can timely, accurately, and efficiently locate and detect the deformation area of ​​steel pipe piles, especially the lower deformation of inclined steel pipe piles, providing a visual cloud map of the deformation area, providing a basis for the treatment of steel pipe pile deformation, and ensuring the quality of pile foundation construction. Summary of the Invention

[0004] This invention provides a steel pipe pile deformation detection device and detection method to solve the problems in related technologies where there is a lack of effective and safe detection means after steel pipe pile deformation, and the inability to accurately reflect data such as the area and depth of the deformation area.

[0005] Firstly, a deformation detection device for steel pipe piles is provided, comprising: A first traveling mechanism and a second traveling mechanism, wherein the first traveling mechanism is located above the second traveling mechanism along the axial direction of the steel pipe pile; A walking adjustment mechanism is used to axially connect the first walking mechanism and the second walking mechanism, and is capable of adjusting the distance between the first walking mechanism and the second walking mechanism; The testing mechanism is used to detect pressure and / or displacement changes between the second traveling mechanism and the wall of the steel pipe pile.

[0006] In some embodiments, the steel pipe pile deformation detection device further includes a scanning mechanism disposed below the first traveling mechanism for scanning the steel pipe pile wall between the first traveling mechanism and the second traveling mechanism.

[0007] This embodiment enables precise positioning of the deformation area of ​​the steel pipe pile wall, allowing the scanning mechanism to measure deformation data within the deformation area, thereby improving detection accuracy and efficiency.

[0008] In some embodiments, the scanning mechanism includes a rotary scanning track and a rotary scanner, the rotary scanner being rotatable along the rotary scanning track.

[0009] This embodiment enables a rotary scanning mechanism to quickly and efficiently complete a comprehensive scan of the deformation area of ​​the steel pipe pile wall. The scan coverage is good, the probability of rescanning is low, and the time and cost waste caused by rescanning due to missing scan areas is reduced.

[0010] In some embodiments, the scanning mechanism further includes a rotary scanning telescopic rod, one end of which is connected to the first traveling mechanism and the other end of which is connected to the rotary scanning track.

[0011] This embodiment enables the scanning mechanism to move along the axial direction of the steel pipe pile and adjust the distance between the scanning mechanism and the first traveling mechanism, thereby successfully completing a comprehensive scan of the deformed area.

[0012] In some embodiments, the steel pipe pile deformation detection device further includes a signal processing mechanism for receiving and transmitting deformation data of the steel pipe pile wall collected by the scanning mechanism to the control platform.

[0013] This embodiment enables timely transmission of deformation data to the control platform and processing of the collected deformation data. Compared with the post-processing in existing technologies, it can effectively improve detection efficiency and make sufficient decisions and preparations for dealing with the deformation area of ​​steel pipe piles.

[0014] In some embodiments, both the first and second walking mechanisms include a central disk, walking wheels, and telescopic arms. There are at least six telescopic arms, with one end of each arm symmetrically arranged on the outer circumferential surface of the central disk and the other end connected to the walking wheels.

[0015] This embodiment enables the first and second traveling mechanisms to move smoothly along the axial direction of the steel pipe pile, while simultaneously detecting the deformation area of ​​the steel pipe pile wall. The overall operation is stable, providing a good foundation for detection and ensuring the accuracy and efficiency of the detection.

[0016] Furthermore, the telescopic boom is preferably composed of eight parts.

[0017] In some embodiments, the telescopic boom is equipped with a displacement sensing device for detecting radial displacement changes of the telescopic boom.

[0018] In some embodiments, the traveling wheel is equipped with a pressure sensing device for detecting pressure changes between the traveling wheel and the wall of the steel pipe pile.

[0019] This embodiment enables diversified detection methods. For example, the deformation of the steel pipe pile wall can be determined by detecting the radial displacement change of the telescopic boom, or by detecting the pressure change between the traveling wheel and the steel pipe pile wall. Furthermore, to ensure accuracy, the detection data from both methods can be used simultaneously as the basis for judgment, reducing the probability of misjudgment and improving detection efficiency.

[0020] Secondly, a detection method for a steel pipe pile deformation detection device is provided, the method comprising the following steps: Detect pressure and / or displacement changes between the second traveling mechanism and the wall of the steel pipe pile; In response to the pressure and / or displacement changes, the initial deformation position of the steel pipe pile wall is located, the first traveling mechanism is stopped, and the second traveling mechanism continues to travel; In response to the pressure and / or displacement changes returning to zero, the second traveling mechanism stops and positions the deformation termination position of the steel pipe pile wall.

[0021] In some embodiments, the scanning mechanism is used to collect deformation data of the steel pipe pile wall located between the first traveling mechanism and the second traveling mechanism; The deformation data is transmitted to the control platform using the signal processing mechanism to generate a three-dimensional deformation cloud map.

[0022] The beneficial effects of the technical solution provided by this invention include: Existing detection methods involve divers groping for deformation of steel pipe piles underwater in mud, which is dangerous, inefficient, and unable to accurately provide data such as the area and depth of deformation. This invention provides a steel pipe pile deformation detection device and method. A second traveling mechanism can adjust the radial extension along the steel pipe pile to ensure the detection device moves smoothly along the wall, improving its safety. It can also accurately locate the deformation area of ​​the steel pipe pile wall, allowing for targeted rotational scanning of this area. This improves detection efficiency, enabling timely detection of deformation areas in the steel pipe pile wall. Furthermore, the rotational scanning allows for rapid data acquisition of the deformation area, transmitting the data in real-time to the system for processing and generating a deformation cloud map. This provides a basis for quickly and accurately addressing deformed steel pipe pile walls, ensuring the quality of bridge pile foundation construction. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A top view of the steel pipe pile deformation detection device provided in this embodiment of the invention located inside the steel pipe pile; Figure 2 for Figure 1 A cross-sectional view along AA.

[0025] Explanation of reference numerals in the attached figures: 1. First traveling mechanism; 2. Second traveling mechanism; 3. Steel pipe pile; 4. Travel adjustment mechanism; 5. Rotary sweep track; 6. Rotary sweeping instrument; 7. Rotary sweep telescopic rod; 8. Central disc; 9. Traveling wheel; 10. Telescopic arm; 11. Rotary sweep connecting rod; 12. Array ultrasonic emitting surface; 13. Protective hanging ear; 14. Signal cable; 15. Core panel. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figure 1 As shown, this embodiment of the invention provides a steel pipe pile deformation detection device, which includes: a first traveling mechanism 1 and a second traveling mechanism 2, wherein the first traveling mechanism 1 is located above the second traveling mechanism 2 along the axial direction of the steel pipe pile 3; a traveling adjustment mechanism 4, which is used to axially connect the first traveling mechanism 1 and the second traveling mechanism 2 and can adjust the distance between the first traveling mechanism 1 and the second traveling mechanism 2; and a detection mechanism, which is used to detect the pressure and / or displacement changes between the second traveling mechanism 2 and the pipe wall of the steel pipe pile 3.

[0028] In some embodiments, the walking adjustment mechanism 4 includes walking telescopic rods, preferably in groups of four, arranged symmetrically around the axial center lines of the first walking mechanism 1 and the second walking mechanism 2, to ensure the strength and stability of the overall structure.

[0029] The maximum telescopic length of the walking telescopic rod can be customized according to actual needs, and the walking telescopic rod is detachably connected to the first walking mechanism 1 and the second walking mechanism 2. In this way, walking telescopic rods with different ranges can be adapted and installed according to actual testing conditions to meet testing requirements and improve the convenience of testing.

[0030] In some embodiments, the steel pipe pile deformation detection device further includes a scanning mechanism, which is disposed below the first traveling mechanism 1 and is used to scan the wall of the steel pipe pile 3 between the first traveling mechanism 1 and the second traveling mechanism 2.

[0031] This embodiment enables precise positioning of the deformation area of ​​the steel pipe pile wall, allowing the scanning mechanism to measure deformation data within the deformation area, thereby improving detection accuracy and efficiency.

[0032] In some embodiments, the scanning mechanism includes a rotary scanning track 5 and a rotary scanner 6, the rotary scanner 6 being rotatable along the rotary scanning track 5. The rotary scanning track 5 may be a circular track.

[0033] This embodiment enables a rotary scanning mechanism to quickly and efficiently complete a comprehensive scan of the deformation area of ​​the steel pipe pile wall. The scan coverage is good, the probability of rescanning is low, and the time and cost waste caused by rescanning due to missing scan areas is reduced.

[0034] In some embodiments, the scanning mechanism further includes a rotary scanning telescopic rod 7, one end of which is connected to the first traveling mechanism 1, and the other end to the rotary scanning track 5. During operation, after the scanning mechanism completes one revolution to collect deformation data, it moves downwards a preset distance L via the rotary scanning telescopic rod 7. The distance L is not greater than the axial scanning range of the scanning mechanism. The scanning mechanism continues to rotate one revolution to collect deformation data, and this cycle continues until the travel of the scanning mechanism covers the entire area between the first traveling mechanism 1 and the second traveling mechanism 2. After completing the scanning of the deformation area, the rotary scanning telescopic rod 7 returns to its original position.

[0035] This embodiment enables the scanning mechanism to move along the axial direction of the steel pipe pile and adjust the distance between the scanning mechanism and the first walking mechanism 1, thereby successfully completing a comprehensive scan of the deformed area.

[0036] In some embodiments, the rotary scanner 6 further includes a rotary scanning connecting rod 11 and an arrayed ultrasonic emitting surface 12. The arrayed ultrasonic emitting surface 12 and the rotary scanner 6 form a scanning probe, which is mounted on a rotary scanning track 5 via the rotary scanning connecting rod 11. The rotary scanning track 5 is connected and fixed to the first walking mechanism 1 via a rotary scanning telescopic rod 7. During operation, the arrayed ultrasonic emitting surface 12 emits ultrasonic signals to collect deformation data of the steel pipe pile wall. The rotary scanner 6 is mounted on the rotary scanning track 5 via the rotary scanning connecting rod 11, and the rotary scanner 6 rotates around to collect the deformation data.

[0037] Furthermore, the rotary scanning instrument 6 can be rotated and collected in two ways: (1) The rotary scanning instrument 6 is fixedly installed on the rotary scanning track 5 by the rotary scanning connecting rod 11, and the rotary scanning track 5 is driven by the rotary scanning drive mechanism and rotates around the axial center line of the steel pipe pile; (2) The rotary scanning instrument 6 is slidably installed on the rotary scanning track 5 by the rotary scanning connecting rod 11, and one end of the rotary scanning connecting rod 11 is connected to a slider, which is driven by the rotary scanning drive mechanism to slide along the rotary scanning track 5.

[0038] In some embodiments, the steel pipe pile deformation detection device further includes a signal processing mechanism for receiving and transmitting to the control platform the deformation data of the steel pipe pile wall 3 collected by the scanning mechanism.

[0039] The signal processing mechanism includes a protective lug 13, a signal cable 14, and a core compartment 15. The protective lug 13 connects to a steel wire rope, which is connected to a traction device located at the top of the steel pipe pile for lifting and lowering the steel pipe pile deformation detection device. The signal cable 14 and the protective lug 13 are located on the upper part of the core compartment 15, which is situated above the first traveling mechanism 1 and the second traveling mechanism 2, thereby preventing the lowered steel pipe pile deformation detection device from being crushed by contact with the bottom. The deformation data of the steel pipe pile wall collected by the rotary scanning instrument 6 is transmitted to the control platform via the signal cable for data processing and cloud map generation, providing a basis for handling the deformation of the steel pipe pile 3 and ensuring the construction quality of the bridge pile foundation.

[0040] This embodiment enables timely transmission of deformation data to the control platform and processing of the collected deformation data. Compared with the post-processing in existing technologies, it can effectively improve detection efficiency and make sufficient decisions and preparations for dealing with the deformation area of ​​steel pipe piles.

[0041] In some embodiments, both the first walking mechanism 1 and the second walking mechanism 2 include a central disk 8, walking wheels 9, and telescopic arms 10. There are at least six telescopic arms 10, with one end of each telescopic arm 10 symmetrically arranged on the outer circumferential surface of the central disk 8, and the other end connected to the walking wheels 9.

[0042] The telescopic boom 10 is equipped with a telescopic device in the middle, allowing it to extend and retract according to the deformation pressure of the steel pipe pile wall as it travels along the wall, thus providing a certain degree of adaptability. During operation, the traveling wheels 9 are in close contact with the steel pipe pile wall, enabling the first traveling mechanism 1 and the second traveling mechanism 2 to travel axially along the steel pipe pile wall.

[0043] This embodiment enables the first and second traveling mechanisms to move smoothly along the axial direction of the steel pipe pile, while simultaneously detecting the deformation area of ​​the steel pipe pile wall. The overall operation is stable, providing a good foundation for detection and ensuring the accuracy and efficiency of the detection.

[0044] Furthermore, the telescopic boom is preferably composed of eight parts.

[0045] In some embodiments, the telescopic boom 10 is provided with a displacement sensing device for detecting radial displacement changes of the telescopic boom 10.

[0046] And / or, the traveling wheel 9 is equipped with a pressure sensing device for detecting pressure changes between the traveling wheel 9 and the wall of the steel pipe pile 3.

[0047] This embodiment enables diversified detection methods. For example, the deformation of the steel pipe pile wall can be determined by detecting the radial displacement change of the telescopic boom, or by detecting the pressure change between the traveling wheel and the steel pipe pile wall. Furthermore, to ensure accuracy, the detection data from both methods can be used simultaneously as the basis for judgment, reducing the probability of misjudgment and improving detection efficiency.

[0048] In some embodiments, the present invention may also provide a detection method for a steel pipe pile deformation detection device, the detection method comprising the following steps: S1. Detect the pressure and / or displacement changes between the second traveling mechanism 2 and the wall of the steel pipe pile 3; S2. In response to the pressure and / or displacement changes, locate the initial deformation position of the steel pipe pile 3 wall, control the first traveling mechanism 1 to stop, and the second traveling mechanism 2 to continue traveling; S3. In response to the pressure and / or displacement change returning to zero, the second traveling mechanism 2 stops and positions the deformation termination position of the steel pipe pile 3 wall.

[0049] S4. Use the scanning mechanism to collect deformation data of the steel pipe pile 3 wall located between the first walking mechanism 1 and the second walking mechanism 2; S5. The deformation data is transmitted to the control platform using the signal processing mechanism to generate a three-dimensional deformation cloud map.

[0050] The specific detection process of the aforementioned detection method is as follows: Place the steel pipe pile deformation detection device into the steel pipe pile 3, connect the data power cable, mark the cross coordinate mark at the pipe opening, corresponding to the direction of the traveling wheel 9, determine the direction of the deformation area on the pipe wall of the steel pipe pile, take the top surface of the steel pipe pile 3 as the starting point, determine the depth of the deformation area, and after everything is ready, slowly lower the steel pipe pile detection device.

[0051] The traveling wheels 9 move slowly downwards, closely following the wall of the steel pipe pile. Multiple displacement sensors on the telescopic boom 10 detect the concave deformation of the steel pipe pile wall. When the displacement sensor of the second traveling mechanism 2 detects deformation of the steel pipe pile wall, it sends a signal to the operating platform. The operating platform stops lowering the steel pipe pile deformation detection device, the first traveling mechanism 1 stops moving, and the second traveling mechanism 2 continues moving downwards until it passes through the entire deformation area, at which point the second traveling mechanism 2 stops descending.

[0052] The array ultrasonic emitting surface 12 of the rotary scanning instrument 6 emits ultrasonic signals to collect deformation data of the steel pipe pile wall. The rotary scanning instrument 6 is mounted on the rotary scanning track 5 via a rotary scanning connecting rod 11, and the rotary scanning instrument 6 rotates to collect the deformation data. After the scanning mechanism completes one revolution to collect the deformation data, it moves downward a preset distance L via the rotary scanning telescopic rod 7. The distance L is not greater than the axial scanning range of the scanning mechanism, and the scanning mechanism continues to rotate to collect the deformation data one revolution. This cycle continues until the travel of the scanning mechanism covers the entire area between the first traveling mechanism 1 and the second traveling mechanism 2.

[0053] After completing the scanning of the deformation area, the rotary scanning telescopic rod 7 and the walking telescopic rod of the walking adjustment mechanism 4 are reset, the first walking mechanism 1 and the second walking structure 2 are unlocked, and the steel pipe pile deformation detection device continues to descend until the entire steel pipe pile is inspected. After the inspection is completed, the steel pipe pile deformation detection device is retracted through the protective lug 13 connecting the wire rope. The control platform processes the collected deformation data and generates a three-dimensional deformation cloud map.

[0054] The steel pipe pile deformation detection device can directly detect the deformation of steel pipe piles, especially for inclined steel pipe piles. It directly provides a cloud map of the deformation area, which provides a basis for the treatment of steel pipe pile deformation and ensures the construction quality of bridge pile foundation.

[0055] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0056] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A deformation detection device for steel pipe piles, characterized in that, It includes: The first walking mechanism (1) and the second walking mechanism (2) are located above the second walking mechanism (2) along the axial direction of the steel pipe pile (3); The walking adjustment mechanism (4) is used to axially connect the first walking mechanism (1) and the second walking mechanism (2), and can adjust the distance between the first walking mechanism (1) and the second walking mechanism (2); The testing mechanism is used to test the pressure and / or displacement changes between the second walking mechanism (2) and the wall of the steel pipe pile (3).

2. The steel pipe pile deformation detection device as described in claim 1, characterized in that: It also includes a scanning mechanism, which is located below the first walking mechanism (1) and is used to scan the wall of the steel pipe pile (3) between the first walking mechanism (1) and the second walking mechanism (2).

3. The steel pipe pile deformation detection device as described in claim 2, characterized in that: The scanning mechanism includes a rotary scanning track (5) and a rotary scanning instrument (6), which can rotate along the rotary scanning track (5).

4. The steel pipe pile deformation detection device as described in claim 3, characterized in that: The scanning mechanism also includes a rotary scanning telescopic rod (7), one end of which is connected to the first walking mechanism (1), and the other end is connected to the rotary scanning track (5).

5. The steel pipe pile deformation detection device as described in claim 4, characterized in that: It also includes a signal processing mechanism for receiving and transmitting to the control platform the deformation data of the steel pipe pile (3) wall collected by the scanning mechanism.

6. The steel pipe pile deformation detection device as described in claim 1, characterized in that: Both the first walking mechanism (1) and the second walking mechanism (2) include a central disc (8), a walking wheel (9) and a telescopic arm (10). There are at least 6 telescopic arms (10). One end of each telescopic arm (10) is symmetrically arranged on the outer circumference of the central disc (8), and the other end is connected to the walking wheel (9).

7. The steel pipe pile deformation detection device as described in claim 6, characterized in that: The telescopic boom (10) is equipped with a displacement sensing device for detecting radial displacement changes of the telescopic boom (10).

8. The steel pipe pile deformation detection device as described in claim 6 or 7, characterized in that: The walking wheel (9) is equipped with a pressure sensing device to detect the pressure change between the walking wheel (9) and the wall of the steel pipe pile (3).

9. A detection method for a steel pipe pile deformation detection device as described in any one of claims 1-8, the detection method comprising the following steps: Detect the pressure and / or displacement changes between the second traveling mechanism (2) and the wall of the steel pipe pile (3); In response to the pressure and / or displacement changes, the initial position of the deformation of the steel pipe pile (3) wall is located, the first walking mechanism (1) is stopped, and the second walking mechanism (2) continues to walk; In response to the pressure and / or displacement change returning to zero, the second traveling mechanism (2) stops and positions the deformation termination position of the steel pipe pile (3) wall.

10. The detection method of the steel pipe pile deformation detection device as described in claim 9, characterized in that: The scanning mechanism is used to collect deformation data of the steel pipe pile (3) wall located between the first walking mechanism (1) and the second walking mechanism (2); The deformation data is transmitted to the control platform using the signal processing mechanism to generate a three-dimensional deformation cloud map.

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