A non-destructive testing device for existing bridge foundation piles

Abstract

This utility model discloses a non-destructive testing device for existing bridge foundation piles, comprising a pre-embedded transparent sonic logging tube and a detector. The transparent sonic logging tube is embedded in the foundation pile at the bottom of the pile cap, and an inlet communicating with the transparent sonic logging tube is provided on the pile cap. The detector includes a cable, an endoscope probe, and an ultrasonic probe. The cable is connected to the endoscope probe and the ultrasonic probe, and the detector is inserted into the transparent sonic logging tube through the inlet. This utility model, by providing an inlet on the pile cap and designing the sonic logging tube to be transparent, and by combining an endoscope probe and an ultrasonic probe with the detector, can continuously perform imaging inspection of the foundation pile concrete. Furthermore, the sonic logging tube is not concealed or covered after the pile cap construction is completed, and can continue to be used for long-term, continuous acoustic transmission testing and endoscopic imaging inspection through the inlet and the sonic logging tube.

Description

Technical Field

[0001] This utility model relates to the field of foundation pile testing technology, and more specifically, to a non-destructive testing device for existing bridge foundation piles. Background Technology

[0002] Currently, the most widely used non-destructive testing method for bridge pile foundations is the acoustic transmission method. In cases of doubt, core sampling is performed to verify the results. The borehole can then be used for in-hole television imaging and endoscopic imaging. Bridge pile foundations are considered concealed works; after testing, the pile cap is typically constructed, concealing the piles and acoustic logging tubes, making further non-destructive testing impossible.

[0003] However, in actual testing, it is common for 1 to 2 out of 3 to 4 sonic logging tubes to become blocked. According to specifications, this can only be verified by high-cost core sampling or by using the core hole for further sonic logging testing. On the other hand, some bridges have been found to have settled through settlement monitoring later on, which may indicate damage to the existing railway pile foundations.

[0004] Therefore, it is necessary to propose a non-destructive testing device for existing bridge foundation piles to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a non-destructive testing device for existing bridge foundation piles to solve the problems that existing acoustic logging tubes cannot be continuously monitored and cannot detect the internal state of the acoustic logging tubes.

[0006] According to one aspect of the present invention, a non-destructive testing device for existing bridge foundation piles is provided, comprising a pre-embedded transparent acoustic logging tube and a detector. The transparent acoustic logging tube is embedded in the foundation pile at the bottom of the pile cap, and an inlet communicating with the transparent acoustic logging tube is provided on the pile cap. The detector comprises a cable, an endoscope probe, and an ultrasonic probe. The cable is connected to the endoscope probe and the ultrasonic probe, and the detector is inserted into the transparent acoustic logging tube through the inlet.

[0007] Based on the above scheme, preferably, the detector includes a support tube, a cable tube and a handle, the cable tube is inserted into the support tube and the upper part of the cable tube is connected to the handle, and the bottom of the cable tube is provided with a guide edge for guiding the endoscope probe and the ultrasonic probe.

[0008] Preferably, based on the above scheme, the guide edge is annular and hinged to the bottom of the cable pipe.

[0009] Preferably, based on the above scheme, the detector includes a main body for mounting the endoscope probe and the ultrasonic probe. The main body includes a head, a middle part and a tail. The head and the middle part are connected by an elastic connecting tube, and the middle part and the tail part are connected by an elastic connecting tube.

[0010] Based on the above scheme, the intermediate part preferably incorporates a distance sensor, a speed sensor, a gyroscope, and an acceleration sensor.

[0011] Based on the above scheme, preferably, the head is provided with a window, and the endoscope probe and the ultrasonic probe are arranged opposite to the window.

[0012] Based on the above scheme, a preferred embodiment is provided with a spiral protective fin on the outer edge of the head.

[0013] This utility model discloses a non-destructive testing device for existing bridge foundation piles. By setting an access point on the pile cap and designing the sonic logging tube to be transparent, and using a detector that combines an endoscope probe and an ultrasonic probe, it can continuously perform imaging inspection of the pile concrete. Furthermore, the sonic logging tube is not concealed or covered after the pile cap construction is completed. Through the access point and the sonic logging tube, it can continue to perform sonic logging and endoscopic imaging inspections at any time, solving the problem in traditional pile inspection where the sonic logging tube is difficult to reuse for inspection after pile cap construction. This improves the convenience and long-term sustainability of pile inspection. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0015] Figure 1 This is a schematic diagram of the installation structure of the transparent acoustic tube of the existing bridge foundation pile non-destructive testing device of this utility model;

[0016] Figure 2 This is a schematic diagram of the detector structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 4 This is a cross-sectional view of the head of the present invention.

[0019] Figure 5 This is a schematic diagram of the head structure of this utility model;

[0020] Figure 6 This is a top view of the installation structure of the transparent acoustic tube of the existing bridge foundation pile non-destructive testing device of this utility model.

[0021] Explanation of icon numbers:

[0022] 100. Foundation; 200. Foundation pile; 300. Inlet; 300. Transparent sonic logging tube; 400. Detector; 410. Cable; 420. Endoscope probe; 430. Ultrasonic probe; 440. Support tube; 450. Cable conduit; 451. Handle; 452. Guide edge; 460. Main body; 461. Head; 462. Middle section; 463. Tail; 464. Flexible connecting tube; 465. Protective fin; 466. Window. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0024] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0025] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0026] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0027] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0028] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0030] Please see Figure 1 and combined Figure 2 , Figure 3 and Figure 6 As shown, the present invention discloses a non-destructive testing device for existing bridge foundation piles 200, comprising a pre-embedded transparent acoustic logging tube 300 and a detector 400. The transparent acoustic logging tube 300 is embedded in the foundation pile 200 located at the bottom of the foundation 100, and an inlet 300 communicating with the transparent acoustic logging tube 300 is provided on the foundation 100. The detector 400 includes a cable 410, an endoscope probe 420 and an ultrasonic probe 430. The cable 410 is connected to the endoscope probe 420 and the ultrasonic probe 430. The detector 400 is inserted into the transparent acoustic logging tube 300 through the inlet 300.

[0031] Specifically, the detector 400 of this utility model includes a support tube 440, a cable 410 tube, and a handle 451. The cable 410 tube passes through the support tube 440, and the handle 451 is connected to the upper part of the cable 410 tube. The bottom of the cable 410 tube is provided with a guide edge 452 for guiding the endoscope probe 420 and the ultrasonic probe 430.

[0032] During testing, the detector 400 is inserted into the transparent acoustic tube 300 through the inlet 300. The support tube 440 of the detector 400 provides support for the overall structure. The cable 410 is run through the tube. The handle 451 is convenient for the operator to hold and control. The guide edge 452 at the bottom of the cable 410 tube (ring-shaped and hinged to the bottom of the cable 410 tube) can guide the endoscope probe 420 and the ultrasonic probe 430 to smoothly enter the acoustic tube.

[0033] Please see Figure 2 As shown, the guide edge 452 of this utility model is annular and hinged to the bottom of the cable 410 tube.

[0034] The detector 400 of this invention includes a main body 460 for mounting the endoscope probe 420 and the ultrasonic probe 430. The main body 460 includes a head 461, a middle portion 462, and a tail 463. The head 461 and the middle portion 462 are connected by an elastic connecting tube 464, and the middle portion 462 and the tail 463 are also connected by an elastic connecting tube 464. The middle portion 462 houses a distance sensor, a speed sensor, a gyroscope, and an accelerometer. The head 461 has a window 466, with the endoscope probe 420 and the ultrasonic probe 430 positioned opposite to the window 466. The outer edge of the head 461 is provided with a spiral-shaped protective fin 465. For detailed structure, please refer to [reference needed]. Figure 3 , Figure 4 and Figure 5 As shown.

[0035] The detector 400 of this invention has a head 461, a middle section 462, and a tail 463 connected by an elastic connecting tube 464, which can adapt to possible bending or other situations within the acoustic tube. The window 466 of the head 461 provides a working space for the endoscope probe 420 and the ultrasonic probe 430, and the spiral protective fins 465 on the outer edge protect the head 461 from impacts. The middle section 462 houses a distance sensor, a speed sensor, a gyroscope, and an accelerometer, which can acquire position and motion information in real time during the detection process, improving detection accuracy.

[0036] This invention allows for direct observation of the inside of the acoustic logging tube and relevant parts of the foundation pile 200 via the endoscope probe 420, while the ultrasonic probe 430 emits ultrasonic waves for sound wave transmission detection. The combination of these two methods enables comprehensive non-destructive testing of the foundation pile 200. After testing, the detector 400 can be removed from the inlet 300 and reinserted for subsequent testing.

[0037] This utility model discloses a non-destructive testing device for existing bridge foundation piles 200. By setting an inlet 300 on the pile cap 100 and designing the sonic logging tube to be transparent, and by using a detector 400 that combines an endoscope probe 420 and an ultrasonic probe 430, it can continuously achieve imaging detection of the foundation pile concrete. It also ensures that the sonic logging tube is not concealed or covered after the pile cap 100 is constructed. Through the inlet 300 and the sonic logging tube, it is possible to perform sonic transmission method detection and endoscopic imaging detection at any time in the later period.

[0038] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A non-destructive testing device for existing bridge foundation piles, characterized in that, The device includes a pre-embedded transparent acoustic logging tube and a detector. The transparent acoustic logging tube is embedded in the foundation pile at the bottom of the foundation, and an inlet communicating with the transparent acoustic logging tube is provided on the foundation. The detector includes a cable, an endoscope probe and an ultrasonic probe. The cable is connected to the endoscope probe and the ultrasonic probe. The detector is inserted into the transparent acoustic logging tube through the inlet.

2. The non-destructive testing device for existing bridge foundation piles as described in claim 1, characterized in that, The detector includes a support tube, a cable tube, and a handle. The cable tube passes through the support tube, and the handle is connected to the upper part of the cable tube. The bottom of the cable tube is provided with a guide edge for guiding the endoscope probe and the ultrasonic probe.

3. The non-destructive testing device for existing bridge foundation piles as described in claim 2, characterized in that, The guide edge is annular and hinged to the bottom of the cable conduit.

4. The non-destructive testing device for existing bridge foundation piles as described in claim 1, characterized in that, The detector includes a main body for mounting the endoscope probe and the ultrasonic probe. The main body includes a head, a middle part and a tail. The head and the middle part are connected by an elastic connecting tube, and the middle part and the tail part are connected by an elastic connecting tube.

5. The non-destructive testing device for existing bridge foundation piles as described in claim 4, characterized in that, The middle section contains a distance sensor, a speed sensor, a gyroscope, and an accelerometer.

6. The non-destructive testing device for existing bridge foundation piles as described in claim 4, characterized in that, The head is provided with a window, and the endoscope probe and the ultrasonic probe are positioned opposite to the window.

7. The non-destructive testing device for existing bridge foundation piles as described in claim 4, characterized in that, The outer edge of the head is provided with spiral-shaped protective fins.

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