Concrete vibration process inspection system

Abstract

The invention discloses a concrete vibration process inspection system, relates to the technical field of concrete vibration, and solves the problem that vibration frequencies of vibrators in different areas are limited and adjusted without adopting a specific analysis processing mode. The method comprises the following steps: monitoring sound wave data of concrete, generating a surface model corresponding to the concrete based on the monitored sound wave data, performing depression analysis on the surface model, identifying and confirming the solidification states of different areas of the corresponding concrete, and comprehensively evaluating the association states of the different areas in the concrete based on the specific depth and specific diffusion condition of the corresponding depression area. According to the method, the evaluation mode is more accurate, the generated evaluation effect is better, a more accurate evaluation and identification effect can be achieved, and the vibration speed of different areas is changed, so that when the whole concrete is vibrated, a better vibration treatment effect can be achieved, and the overall average effect of the concrete in the vibration process is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of concrete vibration, in particular to a concrete vibration process inspection system. Background Art

[0002] Concrete vibration is a key link in the concrete construction process. Its purpose is to make the concrete dense, remove the air and excess moisture in it, and ensure the quality and performance of the concrete. During the concrete pouring process, there will be many gaps. Vibration can make the concrete particles closer to each other and fill these gaps; this can improve the strength and durability of the concrete.

[0003] The application with publication number CN114837421A discloses an intelligent control system for concrete vibration, which relates to the technical field of concrete vibration control systems, including a rotary-resistance level meter, a program logic controller, a limit switch, a contactor, a vibrating rod, a hydraulic station, a winch, an operation panel and a camera, wherein the rotary-resistance level meter is fixedly mounted on a vibrating device, and the rotary-resistance level meter is connected to the program logic controller via a communication cable. The program logic controller of the present invention controls the vibrating rod to vibrate and compact the concrete by controlling the contactor, controls the hydraulic station to lift the feed hopper by controlling the contactor, controls the winch to lift the vibrating device by controlling the contactor, and the camera is fixed on the vibrating platform and connected to the operation panel via a communication line to display the actual situation of concrete pouring in real time, bringing better prospects for use.

[0004] During the vibration process of concrete, corresponding testing instruments are generally required to conduct relevant inspections on the overall quality after vibration. However, in the actual vibration process, no related inspection processing is carried out. This is because a specific frequency vibration method is used for large-volume concrete, which will cause some areas to become too loose and some solidified areas to become relatively loose, which will cause inconsistencies in the strength of different points inside the entire concrete. For such situations, no specific analysis and processing method is used to limit and adjust the oscillation frequency of the vibrator in different areas to ensure the uniform effect of the entire concrete vibration process. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a concrete vibration process inspection system, which solves the problem of limiting and adjusting the oscillation frequency of vibrators in different areas without adopting a specific analysis and processing method.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a concrete vibration process inspection system, comprising:

[0007] The acoustic wave data processing end receives the acoustic wave data generated by the acoustic wave detection equipment, and generates a relevant model surface corresponding to the concrete surface based on the received acoustic wave data;

[0008] At the concave area analysis end, based on the generated concrete surface related model surface, the concave area existing on the related model surface is analyzed for correlation, the depth of the corresponding concave area is determined first, and then the correlation eigenvalue of the corresponding related model surface is locked based on the inner circle change trend of the concave area, and the several correlation eigenvalues ​​associated with the completion of a circular cycle by the vibrating rod are confirmed one by one and a correlation eigenvalue sequence is generated. The specific method is as follows:

[0009] Based on the confirmed relevant model surface, a set of horizontal base surfaces are generated above the relevant model surface. The horizontal base surface is a flat surface parallel to the horizontal surface. The vertical distance L between the internal points of the relevant model surface and the horizontal base surface is identified in turn. i , where i represents different internal points, L i The internal point associated with max is marked as a depression point, and the vertical distance L associated with the depression point is recorded. i max;

[0010] Based on the determined depression point, a vertical line perpendicular to the horizontal base surface and passing through the depression point is constructed, and associated points are confirmed upward from the depression point, and the associated points are located on the vertical line, and the distance between adjacent associated points is L1, where L1 is a preset value, and the depression point is the first group of associated points;

[0011] Based on the determined several associated points, an associated base surface parallel to the horizontal base surface and including the corresponding associated points is constructed, the intersection segment between the associated base surface and the related model surface is marked as a characteristic circle segment, and the total line segment length C of the characteristic circle segment is determined. k , where k represents different characteristic circle segments;

[0012] Starting from the location of the depression point, confirm the associated points in turn upwards, and convert the C of the characteristic circle segment confirmed by the associated points into k Sort and confirm C k sequence;

[0013] It is proposed that k = 1, 2, ..., m, and Bz = (C 2 -C 1 )+(C 3 -C 2 )+……+(C m -C m-1 ) determine the sum Bz of the differences in lengths of adjacent characteristic circle segments;

[0014] Adopt Tz=Bz÷L imax determines the associated eigenvalue Tz about this relevant model surface;

[0015] The time period for the vibrating rod to complete a circular movement is calibrated as the circular cycle, and several related model surfaces generated in this circular cycle are processed, and the associated eigenvalues ​​Tz associated with the corresponding related model surfaces are confirmed in turn, and the horizontal base surface position corresponding to each related model surface is consistent. According to the chronological relationship of the generation time of the associated eigenvalues ​​Tz, several Tz are sorted to confirm the associated eigenvalue sequence, and different associated eigenvalues ​​in the associated eigenvalue sequence correspond to different data acquisition points;

[0016] The inspection center inspects and analyzes the confirmed associated characteristic value sequence to confirm whether the concrete solidification state of each different area is consistent. Based on the confirmation results, it is determined whether the vibration speed of different areas needs to be adjusted. The specific method is as follows:

[0017] Based on the confirmed associated eigenvalue sequence, a plurality of groups of associated eigenvalues ​​determined in the sequence are subjected to variance processing to determine a corresponding variance value F;

[0018] The determined variance value F is checked against the preset value Y1: if F>Y1, speed regulation is required and the characteristic value processing end is executed, where Y1 is the preset value; if F≤Y1, it means that the concrete solidification state of each different area is relatively consistent and no speed regulation is required;

[0019] The eigenvalue processing end locks the associated mean from the confirmed associated eigenvalue sequence, and then based on the confirmed associated mean and the working vibration speed of the vibrator, the vibration speed of the characteristic area associated with different associated eigenvalues ​​in the associated eigenvalue sequence is confirmed. The specific method is as follows:

[0020] Perform mean processing on several groups of associated eigenvalues ​​contained in the associated eigenvalue sequence, confirm the associated mean value JJ, and calibrate the working vibration speed of the corresponding circular period vibrator as ZZ, where ZZ is the corresponding vibration speed set when the vibrator is working;

[0021] The different correlation eigenvalues ​​in the correlation eigenvalue sequence are calibrated as Tz q , where q represents different data acquisition points, using: (JJ-TZ q )×C1+ZZ=DZ q Determine the vibration velocity DZ to be adjusted associated with the corresponding data acquisition point q , where C1 is the preset fixed coefficient factor;

[0022] The associated rate control end is based on different vibration speeds DZ to be adjusted corresponding to different associated characteristic values qIn the subsequent vibration process, when the vibrating rod reaches the specified data acquisition point, the DZ q Adjust the vibration speed of the vibrator.

[0023] Preferably, the acoustic wave detection device is arranged above the concrete, and its vibrating rod is preset with corresponding data acquisition points when it moves in a circle. When the vibrating rod moves to the data acquisition point, the acoustic wave detection device acquires data on the concrete surface and confirms the corresponding acoustic wave data.

[0024] The present invention provides a concrete vibration process inspection system. Compared with the prior art, it has the following beneficial effects:

[0025] The present invention monitors the vibration process of concrete by acoustic waves, and generates a surface model of the corresponding concrete based on the monitored acoustic wave data, and then identifies and confirms the solidification state of different areas of the corresponding concrete by performing depression analysis on the surface model. Based on the specific depth and specific diffusion of the corresponding depression area, the correlation state of different areas in the concrete is comprehensively evaluated. The evaluation method is more accurate, the evaluation effect is better, and a more accurate evaluation and identification effect can be achieved.

[0026] Then conduct a comprehensive test to evaluate the comprehensive discreteness of the characteristic values ​​associated with different areas, identify the comprehensive state inside the concrete, and based on the evaluation results, change the vibration speed of different areas, so that the entire concrete can achieve better vibration treatment effect during vibration, and ensure the overall average effect of the concrete during the vibration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the principle framework of the present invention;

[0028] Figure 2 Schematic diagram of the processing of the concave area of ​​the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0030] First embodiment

[0031] See also Figure 1, the present application provides a concrete vibration process inspection system, including an acoustic wave data processing end, a concave area analysis end, an inspection center, an eigenvalue processing end, and an associated rate control end, wherein the output node of the acoustic wave data processing end is electrically connected to the input node of the concave area analysis end, and the concave area analysis end is electrically connected to the input node of the inspection center or the eigenvalue processing end respectively, and the inspection center is electrically connected to the input node of the eigenvalue processing end, wherein the eigenvalue processing end is electrically connected to the input node of the associated rate control end;

[0032] The acoustic wave data processing end receives the acoustic wave data generated by the acoustic wave detection device, and generates the corresponding model surface of the concrete surface based on the received acoustic wave data. The acoustic wave detection device is arranged above the concrete. When the vibrating rod moves in a circle, the corresponding data acquisition point is preset in advance. When the vibrating rod moves to the data acquisition point, the acoustic wave detection device acquires the data of the concrete surface and confirms the corresponding acoustic wave data. During the vibration process, the vibrating rod moves in a circle in the corresponding concrete storage bucket, and rotates synchronously when moving. In order to identify the mixing effect of the concrete, a comprehensive inspection is performed based on the acoustic wave data in the acoustic wave detection process, wherein the specific method of generating the relevant model surface of the concrete surface is as follows:

[0033] According to the propagation characteristics of sound waves, the received sound wave data (such as time, frequency, amplitude, etc.) are converted into spatial coordinate information; assuming that the position of the sound wave detection equipment is fixed and known, the distance from the sound wave reflection point (i.e. the concrete surface point) to the detection equipment can be calculated using the sound wave propagation speed (the sound wave speed in concrete is generally constant, such as the longitudinal wave speed of about 3000-4000m / s) and propagation time. Through the detection data in multiple different directions, the three-dimensional spatial coordinates of a series of concrete surface points can be obtained;

[0034] Using the obtained three-dimensional spatial coordinate points, a suitable surface fitting algorithm is used to generate a model surface of the concrete surface; for example, the least squares method can be used for surface fitting. If the spatial coordinate points are represented as (X i , Y i , Z i ), i = 1, 2, ..., n, find a suitable function Z = f(X, Y) by the least squares method so that all points (X i , Y i , Z i ) to the surface is minimized.

[0035] Based on the generated concrete surface model surface, Gaussian filtering is used to smooth the noise, improve the surface accuracy of the model surface, and add details to the model surface according to actual engineering needs. For example, if it is known that there may be some regular textures or tiny concave-convex structures on the concrete surface, corresponding details are added to the model surface based on empirical data and additional constraints to make the generated model surface more consistent with the actual concrete surface.

[0036] Since the method of generating the model surface corresponding to the concrete surface based on the sound wave data is relatively common in the prior art, it will not be described in detail here;

[0037] The concave area analysis end performs correlation analysis on the concave area existing on the related model surface based on the generated concrete surface (the concave area is caused by the oscillation process of the corresponding vibrator and belongs to a vortex state), and first determines the depth of the corresponding concave area. Then, based on the inner circle change trend of the concave area, the correlation eigenvalue of the corresponding related model surface is locked, and the several correlation eigenvalues ​​associated with the completion of a circular cycle of the vibrator are confirmed one by one and a correlation eigenvalue sequence is generated. The specific method of correlation analysis on the concave area is as follows:

[0038] Based on the confirmed relevant model surface, a set of horizontal base surfaces are generated above the relevant model surface. The horizontal base surface is a flat surface parallel to the horizontal surface. The vertical distance L between the internal points of the relevant model surface and the horizontal base surface is identified in turn. i , where i represents different internal points, L i The internal point associated with max is marked as a depression point, and the vertical distance L associated with the depression point is recorded. i max;

[0039] Based on the determined depression point, a vertical line perpendicular to the horizontal base surface and passing through the depression point is constructed, and the associated points are confirmed upward from the depression point. The associated points are located on the vertical line, and the distance between adjacent associated points is L1, where L1 is a preset value, which is prepared by the operator based on experience, and the depression point is the first group of associated points;

[0040] Based on the determined several associated points, an associated base surface parallel to the horizontal base surface and including the corresponding associated points is constructed (that is, the associated base surface is parallel to the horizontal base surface, and each different associated point will confirm a set of associated base surfaces, and its associated points are located in the corresponding associated base surface), and the intersection between the associated base surface and the relevant model surface is marked as a characteristic circle segment, and the total line segment length C of the characteristic circle segment is determined k , where k represents different characteristic circle segments;

[0041] Starting from the location of the depression point, confirm the associated points in turn upwards, and convert the C of the characteristic circle segment confirmed by the associated points into k Sort and confirm C k sequence;

[0042] It is proposed that k = 1, 2, ..., m, and Bz = (C 2 -C 1 )+(C 3 -C 2 )+……+(C m -C m-1 ) Determine the sum of the length differences of adjacent characteristic circle segments Bz, such as Figure 2 As shown, according to the determined concave point, due to the influence of the corresponding vibrating rod entity, the generated sunken point is generally located at a certain point around the vibrating rod. After the sunken point is specifically confirmed, the vertical line is specifically confirmed based on this concave point. Subsequently, other related points about this sunken point are confirmed on the vertical line, so that the corresponding related points can be selected from the bottom to the top in sequence, and the related points can be related to the construction of parallel surfaces, so as to determine the related base surface belonging to the related point, and the related base surface is parallel to the corresponding horizontal base surface. When the related base surface of each related point is confirmed After that, because the associated base surface and the related model surface are in an intersecting state, the intersecting segment between the associated base surface and the related model surface can be locked based on the specific position of the determined associated base surface. It can also be understood that starting from the concave point, the built-in circles of this concave area are confirmed in sequence upwards, and the corresponding characteristic circle segments can be confirmed. If the characteristic circle segments spread out from bottom to top, the difference of the generated line segments will be large, and the concrete associated with such areas is in a relatively loose state. When the characteristic circle segments generated by the concrete do not spread out and are in a relatively gathered state, it means that they are too dense.

[0043] Adopt Tz=Bz÷L i max determines the associated eigenvalue Tz about this relevant model surface;

[0044] The time period for the vibrating rod to complete a circular movement is calibrated as the circular cycle (that is, it moves back to the corresponding overlapping position), and several related model surfaces generated in this circular cycle are processed, and the associated eigenvalues ​​Tz associated with the corresponding related model surfaces are confirmed in turn. The horizontal base surface position corresponding to each related model surface is consistent. According to the relationship between the generation time of the associated eigenvalues ​​Tz, several Tz are sorted to confirm the associated eigenvalue sequence, and different associated eigenvalues ​​in the associated eigenvalue sequence correspond to different data acquisition points.

[0045] Second embodiment

[0046] Among them, the inspection center inspects and analyzes the confirmed associated characteristic value sequence to confirm whether the concrete solidification state of each different area is consistent. Based on the confirmation result, it is determined whether the vibration speed of different areas needs to be adjusted. The specific method of confirmation is:

[0047] Based on the confirmed correlation eigenvalue sequence, several groups of correlation eigenvalues ​​determined in this sequence are processed for variance, the corresponding variance value F is determined, and the proposed correlation eigenvalue sequence is {Tz1, Tz2, ..., Tzn}. The mean value Jz of this sequence is determined first, and then the Confirm its variance value F;

[0048] The determined variance value F is checked against the preset value Y1: if F≤Y1, it means that the concrete solidification state of each different area is relatively consistent, and no speed regulation is required; if F>Y1, where Y1 is a preset value and its specific value is determined by the operator based on experience, speed regulation is required and the eigenvalue processing end is executed.

[0049] The characteristic value processing end locks the associated mean from the confirmed associated characteristic value sequence, and then confirms the vibration speed of the characteristic area associated with different associated characteristic values ​​in the associated characteristic value sequence based on the confirmed associated mean and the working vibration speed of the vibrator, and transmits the confirmed vibration speed to the associated rate control end, wherein the specific method of changing the vibration speed is:

[0050] Perform mean processing on several groups of associated eigenvalues ​​contained in the associated eigenvalue sequence, confirm the associated mean value JJ, and calibrate the working vibration speed of the corresponding circular period vibrator as ZZ, where ZZ is the corresponding vibration speed set when the vibrator is working;

[0051] The different correlation eigenvalues ​​in the correlation eigenvalue sequence are calibrated as Tz q , where q represents different data acquisition points, using: (JJ-TZ q )×C1+ZZ=DZ q Determine the vibration velocity DZ to be adjusted associated with the corresponding data acquisition point q , where C1 is a preset fixed coefficient factor, and its specific value is determined by the operator based on experience. Here, if TZ q If it is smaller than JJ, it means that the concrete in this area is relatively compact, so the associated vibration velocity DZ needs to be larger than ZZ to achieve the effect of equalization. Similarly, if TZ q If it is larger than JJ, it means that the concrete in this area is relatively loose, so the associated vibration speed DZ needs to be smaller than ZZ to achieve the effect of balancing. In the subsequent vibration process, the vibration speed is changed based on the corresponding test results to ensure the overall balancing effect of the corresponding concrete during the vibration process.

[0052] Its associated rate control end is based on different vibration speeds DZ to be adjusted corresponding to different associated characteristic values q In the subsequent vibration process, when the vibrating rod reaches the specified data acquisition point, the DZ q The vibration speed of the vibrating rod is adjusted to change the vibration speed of the vibrating rod, thereby making the entire concrete vibration process more effective and achieving a better vibration treatment effect.

[0053] Third embodiment

[0054] The specific implementation process of this embodiment includes the entire implementation process of the above two groups of embodiments.

[0055] Some of the data in the above formulas are dimensionless and numerically calculated. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0056] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. The concrete vibration process inspection system is characterized by: include: The acoustic wave data processing end receives the acoustic wave data generated by the acoustic wave detection equipment, and generates a relevant model surface corresponding to the concrete surface based on the received acoustic wave data; The concave area analysis end performs correlation analysis on the concave area existing on the related model surface based on the generated concrete surface, and preferentially determines the depth of the corresponding concave area. Then, based on the inner circle change trend of the concave area, the correlation characteristic value of the corresponding related model surface is locked, and the several correlation characteristic values ​​associated with the completion of a circular cycle by the vibrating rod are confirmed one by one and a correlation characteristic value sequence is generated. The inspection center inspects and analyzes the confirmed associated characteristic value sequence to confirm whether the concrete solidification state of each different area is consistent. Based on the confirmation result, it is determined whether the vibration speed of different areas needs to be adjusted; At the eigenvalue processing end, the associated mean is locked from the confirmed associated eigenvalue sequence, and then based on the confirmed associated mean and the working vibration speed of the vibrating rod, the vibration speed of the characteristic area associated with different associated eigenvalues ​​in the associated eigenvalue sequence is confirmed.

2. The concrete vibration process inspection system according to claim 1, characterized in that: The acoustic wave detection device is arranged above the concrete, and the vibrating rod thereof is preset with corresponding data acquisition points when it moves in a circle. When the vibrating rod moves to the data acquisition point, Its sound wave detection equipment acquires data from the concrete surface and confirms the corresponding sound wave data.

3. The concrete vibration process inspection system according to claim 1, characterized in that: The specific method of performing association analysis on the sunken area at the sunken area analysis end is: Based on the confirmed relevant model surface, a set of horizontal base surfaces are generated above the relevant model surface. The horizontal base surface is a flat surface parallel to the horizontal surface. The vertical distance L between the internal points of the relevant model surface and the horizontal base surface is identified in turn. i , where i represents different internal points, L i The internal point associated with max is marked as a depression point, and the vertical distance L associated with the depression point is recorded. i max; Based on the determined depression point, a vertical line perpendicular to the horizontal base surface and passing through the depression point is constructed, and associated points are confirmed upward from the depression point, and the associated points are located on the vertical line, and the distance between adjacent associated points is L1, where L1 is a preset value, and the depression point is the first group of associated points; Based on the determined several associated points, an associated base surface parallel to the horizontal base surface and including the corresponding associated points is constructed, the intersection segment between the associated base surface and the related model surface is marked as a characteristic circle segment, and the total line segment length C of the characteristic circle segment is determined. k , where k represents different characteristic circle segments; Starting from the location of the depression point, confirm the associated points in turn upwards, and convert the C of the characteristic circle segment confirmed by the associated points into k Sort and confirm C k sequence; It is proposed that k = 1, 2, ..., m, and Bz = (C2-C1) + (C3-C2) + ... + (C m -C m-1 ) determine the sum Bz of the differences in lengths of adjacent characteristic circle segments; Adopt Tz=Bz÷L i max determines the associated eigenvalue Tz with respect to this associated model surface.

4. The concrete vibration process inspection system according to claim 3, characterized in that: The specific method of confirming the associated characteristic value sequence at the concave area analysis end is: The time period for the vibrating rod to complete a circular movement is calibrated as the circular cycle, and several related model surfaces generated in this circular cycle are processed in sequence, and the associated eigenvalues ​​Tz corresponding to the corresponding related model surfaces are confirmed in sequence. The horizontal base surface position corresponding to each related model surface is consistent. According to the causal relationship of the generation time of the associated eigenvalue Tz, several Tz are sorted to confirm the associated eigenvalue sequence, and different associated eigenvalues ​​in the associated eigenvalue sequence correspond to different data acquisition points.

5. The concrete vibration process inspection system according to claim 1, characterized in that: The specific method for the inspection center to confirm whether the concrete solidification state of each different area is consistent is: Based on the confirmed correlation feature value sequence, a plurality of groups of correlation feature values ​​determined in the sequence are subjected to variance processing to determine a corresponding variance value F; The determined variance value F is compared with the preset value Y1: if F>Y1, speed regulation is required and the characteristic value processing end is executed, where Y1 is the preset value.

6. The concrete vibration process inspection system according to claim 5, characterized in that: If F≤Y1, it means that the concrete solidification state in each different area is relatively consistent and no speed regulation is required.

7. The concrete vibration process inspection system according to claim 5, characterized in that: The specific method of confirming the vibration speed at the characteristic value processing end is as follows: Perform mean processing on several groups of associated eigenvalues ​​contained in the associated eigenvalue sequence, confirm the associated mean value JJ, and calibrate the working vibration speed of the corresponding circular period vibrator as ZZ, where ZZ is the corresponding vibration speed set when the vibrator is working; The different associated eigenvalues ​​in the associated eigenvalue sequence are calibrated as Tz q , where q represents different data acquisition points, using: (JJ-TZ q )×C1+ZZ=DZ q Determine the vibration velocity DZ to be adjusted associated with the corresponding data acquisition point q , where C1 is a preset fixed coefficient factor.

8. The concrete vibration process inspection system according to claim 7, characterized in that: It also includes the associated rate control end, based on the different vibration speeds DZ to be adjusted corresponding to different associated characteristic values q In the subsequent vibration process, when the vibrating rod reaches the specified data acquisition point, the DZ q Adjust the vibration speed of the vibrator.

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