Measurement apparatus and measurement method for measuring pile diameter of gravel pile

Abstract

The present application aims to provide a measurement apparatus and measurement method for measuring the pile diameter of a gravel pile. The method in the present application comprises: determining the distances between transducers mounted on two sides of a pile pipe and the center of the pile pipe; during construction of a gravel pile, activating the transducers, and starting vibratory feeding once the pile pipe has sunk to a target elevation, so as to form a pile body of the gravel pile; and receiving, on an analysis system, wave signals fed back by the transducers, and on the basis of the wave signals and the distances between the two transducers and the center of the pile pipe, calculating the diameter of the pile body of the gravel pile. Thus, the pile diameter can be measured in real time as a pile pipe is lifted, and a construction worker can promptly visually grasp pile diameter information, thereby improving the construction quality.

Description

A testing device and method for detecting the diameter of crushed stone piles. Technical Field

[0001] This application relates to the field of geotechnical engineering, and in particular to a testing device and method for detecting the diameter of crushed stone piles. Background Technology

[0002] Currently, the technology for testing crushed stone piles is evolving slowly. Most methods rely on dynamic penetration tests to assess the compaction and continuity of the piles, lacking a direct method for measuring the pile diameter. Furthermore, since crushed stone piles are formed below the mud surface and are granular piles, it's impossible to determine if there are any issues like diameter expansion or contraction affecting construction quality. Moreover, crushed stone pile construction is a concealed project, and the quality of the pile directly impacts the foundation treatment effect; the pile diameter is a crucial indicator of pile quality. Therefore, there is an urgent need for an intelligent, digital, intuitive, and easy-to-operate method for testing the diameter of crushed stone piles. Researching a technology capable of detecting the pile diameter at different depths during pile formation is now a pressing task. Summary of the Invention

[0003] One objective of this application is to provide a testing device and method for detecting the diameter of crushed stone piles, thereby solving the problems in the prior art where it is impossible to detect the pile diameter at different depths during the pile formation process and construction personnel cannot intuitively grasp the pile diameter information, which affects the construction quality.

[0004] According to one aspect of this application, a testing device for detecting the diameter of crushed stone piles is provided. The testing device includes: a pile tube, a transducer, a transmission device, and an analysis system, wherein...

[0005] The transducer includes two transducers, which are symmetrically arranged on both sides of the pile pipe;

[0006] A crushed stone pile is formed inside the pile tube, and the transducer is used to emit ultrasonic waves to detect the crushed stone pile inside the pile tube and obtain wave signals.

[0007] The transmission device is connected to the transducer and is used to transmit the wave signal detected by the transducer to the analysis system.

[0008] The analysis system is used to calculate the diameter of the crushed stone pile body based on the wave signal and the distance from the two transducers to the center of the pile tube.

[0009] Optionally, the elevation of the transducer is lower than the lowest point of the pile pipe.

[0010] Optionally, the distance between the transducer and the pile pipe is greater than or equal to a set detection blind zone, wherein the detection blind zone is set based on the ultrasonic frequency emitted by the transducer.

[0011] Optionally, a conduit is provided inside the pile pipe, and the transmission device includes a data transmission line, which is connected to the transducer through the conduit.

[0012] Optionally, the analysis system includes a display screen, which displays an ultrasonic image, a pile diameter, a first depth curve of the crushed stone pile, and a second depth curve of the crushed stone pile.

[0013] According to another aspect of this application, a method for detecting the diameter of a crushed stone pile using the aforementioned detection device is also provided, the method comprising:

[0014] Determine the distance between the transducers installed on both sides of the pile pipe and the center of the pile pipe;

[0015] When constructing crushed stone piles, the transducer is turned on, and after the pile pipe sinks to the target elevation, vibration is started to discharge the material to form the pile body of the crushed stone pile.

[0016] The analysis system receives wave signals fed back from the transducers and calculates the diameter of the crushed stone pile based on the wave signals and the distances from the two transducers to the center of the pile pipe.

[0017] Optionally, the diameter of the crushed stone pile is calculated based on the wave signal and the distance from the two transducers to the center of the pile tube, including:

[0018] The distance between the pile body and the transducers on both sides of the stone pile is calculated based on the wave signal.

[0019] The diameter of the crushed stone pile is calculated based on the distance between the pile body and the transducers on both sides, as well as the distance between the transducers and the center of the pile pipe.

[0020] Optionally, the method includes:

[0021] Based on the wave signal, the ultrasonic gain and filter are adjusted to determine the target image;

[0022] The target image is displayed in the ultrasonic image display window of the analysis system.

[0023] Optionally, calculating the pile diameter of the crushed stone pile based on the distance between the pile body and the transducers on both sides and the distance between the transducers and the center of the pile pipe includes:

[0024] Based on the lifting speed of the pile pipe, the diameter of the pile body corresponding to each set lifting distance is determined, and multiple sets of data are obtained;

[0025] Based on multiple sets of data, a curve showing the change in the diameter of the crushed stone pile is plotted, and the curve is displayed in the pile diameter display window.

[0026] Optionally, the method includes:

[0027] The depth of the crushed stone pile is determined based on the lifting speed of the pile pipe, and a curve corresponding to the extraction speed and depth of the crushed stone pile is generated and displayed in the first depth curve display window of the crushed stone pile.

[0028] The volume of each section of the crushed stone pile is calculated based on the calculated pile diameter, and a depth curve of the crushed stone pile filling coefficient is generated and displayed in the second depth curve display window of the crushed stone pile.

[0029] According to another aspect of this application, a computer-readable medium is also provided, having stored thereon computer-readable instructions that can be executed by a processor to implement the methods described above.

[0030] Compared with existing technologies, this application determines the distance between the transducers installed on both sides of the pile pipe and the center of the pile pipe; during the construction of the crushed stone pile, the transducers are turned on, and after the pile pipe sinks to the target elevation, vibration is started to form the pile body; the wave signal fed back by the transducers is received on the analysis system, and the pile diameter of the crushed stone pile is calculated based on the wave signal and the distance from the two transducers to the center of the pile pipe. Therefore, the pile diameter can be detected in real time as the pile pipe is raised, allowing construction personnel to grasp the pile diameter information in a timely and intuitive manner, thus improving construction quality. Attached Figure Description

[0031] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0032] Figure 1 shows a schematic diagram of a detection device for detecting the diameter of crushed stone piles according to one aspect of this application;

[0033] Figure 2 shows a schematic diagram of the device structure for real-time detection of the diameter of crushed stone piles in one embodiment of this application;

[0034] Figure 3 shows a schematic diagram of a pile pipe shaking off crushed stone pile in one embodiment of this application;

[0035] Figure 4 shows a schematic diagram of the threaded conduit on the side of the pile pipe in one embodiment of this application;

[0036] Figure 5 shows a schematic diagram of the interface window of the analysis system's display screen in one embodiment of this application;

[0037] Figure 6 shows a schematic flowchart of a method for detecting the diameter of a crushed stone pile using the aforementioned detection device according to another aspect of this application;

[0038] Figure 7 shows a schematic diagram of the adjusted waveform of the analysis system in one embodiment of this application;

[0039] Figure 8 shows a schematic diagram of real-time detection data for crushed stone piles in one embodiment of this application.

[0040] The same or similar reference numerals in the accompanying drawings represent the same or similar parts. Detailed Implementation

[0041] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.

[0042] The exemplary embodiments of this application will be further fully described below with reference to Figures 1-8. However, the exemplary embodiments can be implemented in many forms and should not be construed as limiting this application to the embodiments set forth herein. Rather, these exemplary embodiments are provided to make this application more comprehensive and complete, and to facilitate a full communication of the inventive concept to those skilled in the art. The same reference numerals in the figures denote the same or similar elements, components, or parts, and therefore repeated descriptions of them are omitted.

[0043] Subject to the technical concept of this application, the features, structures, characteristics or other details described in a particular embodiment may be combined in one or more other embodiments in a suitable manner.

[0044] In the description of specific embodiments, the features, structures, characteristics, or other details described in this application are intended to enable those skilled in the art to fully understand the embodiments. However, it is not excluded that those skilled in the art can practice the technical solutions of this application without one or more of the specific features, structures, characteristics, or other details.

[0045] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0046] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0047] The terms “and / or” or “and / or” include all combinations of any one or more of the listed items.

[0048] Figure 1 shows a schematic diagram of a detection device for detecting the diameter of crushed stone piles according to one aspect of this application. The device includes a pile tube 100, a transducer 200, a transmission device 300, and an analysis system 400. The transducer 200 comprises two transducers symmetrically arranged on both sides of the pile tube 100. A crushed stone pile is formed within the pile tube 100. The transducer 200 emits ultrasonic waves to detect the crushed stone pile within the pile tube 100, obtaining wave signals. The transmission device 300 is connected to the transducer 200 and transmits the wave signals detected by the transducer 200 to the analysis system 400. The analysis system 400 calculates the diameter of the crushed stone pile based on the wave signals and the distances from the two transducers to the center of the pile tube. This allows for convenient detection of the crushed stone pile diameter using only the transducers installed at the bottom of the pile tube, enabling construction personnel to quickly and intuitively grasp the pile diameter information and improve construction quality.

[0049] Specifically, as shown in Figure 2, the device structure for real-time detection of the diameter of the crushed stone pile is as follows: 1 is a transducer, 2 is the pile tube, 3 is the crushed stone pile, 4 is the analysis system, and a transmission device (not shown) is also included. Two transducers, which are ultrasonic transducers with a frequency range of 10–80 kHz, are installed along the diameter of the pile tube cross-section. The transducers are fixedly connected to the pile tube. During crushed stone pile construction, the transducers are activated and enter the soil along with the pile tube. When the pile tube reaches the design elevation and is vibrated for material feeding, the ultrasonic gain and filter are adjusted in the analysis system to improve the waveform image quality. As the pile tube is lifted, the crushed stone falls from the pile tube to form the pile body. The transducers simultaneously emit ultrasonic waves for detection. Since the crushed stone and soil are different materials, there is a clear interface between them during pile formation. Sound waves at this interface are reflected. By adjusting the ultrasonic gain and filter, a clearer image can be seen in the waveform display window of the analysis system. The analysis system calculates the distances x1 and x2 between the crushed stone pile and the transducers on both sides based on the propagation speed and time of the received wave signal. Using the known distance 'a' between the transducer and the center of the pile pipe, the ranges of crushed stone on both sides, a-x1 and a-x2, can be calculated. Therefore, the pile diameter can be approximately calculated as 2a-x1-x2. The changes in the pile diameter can be viewed in real time within the analysis system.

[0050] In some embodiments of this application, the elevation of the transducer 200 is lower than the lowest point of the pile pipe 100. During construction, the pile pipe is lifted, and gravel falls from the pipe into the soil to form a gravel pile. The transducer's elevation is lower than the lowest point of the pile pipe structure. The lower transducer position is to prevent the pile pipe from obstructing the measurement of the gravel pile, and also to allow for measurement after the gravel has fallen and formed a stable pile body, thus obtaining an accurate diameter. As shown in Figure 3, the gravel first scatters into a cone shape before accumulating into a cylindrical pile body; therefore, the transducer position must be lower than the lowest point of the pile pipe structure.

[0051] In some embodiments of this application, the distance between the transducer 200 and the pile pipe 100 is greater than or equal to a set detection blind zone, wherein the detection blind zone is set based on the ultrasonic frequency emitted by the transducer. Here, the distance between the transducer and the pile pipe cannot be less than L, where L is the detection blind zone, and the value of L is related to the ultrasonic frequency emitted by the transducer. The blind zone is an area close to the ultrasonic probe. Because the ultrasonic waves are affected by the probe during propagation, objects in this area cannot be accurately detected, thus forming a blind zone.

[0052] In some embodiments of this application, a conduit is installed inside the pile pipe, and the transmission device includes a data transmission line, which is connected to the transducer through the conduit. Here, a conduit is installed in the pile pipe, and a data transmission line capable of transmitting data is arranged inside the conduit. The detected data is transmitted to the analysis system through the data transmission line. As shown in the side view of the conduit in Figure 4, the conduit is installed inside the pile pipe along the direction of the arrow. The conduit serves a protective function, preventing the data transmission line from being damaged by vibration and abrasion after entering the soil.

[0053] In some embodiments of this application, the analysis system includes a display screen, which displays an ultrasonic image display window, a pile diameter display window, a first depth curve display window for the crushed stone pile, and a second depth curve display window for the crushed stone pile. Here, the analysis system includes a display device, i.e., a display screen, which can be divided into four windows, as shown in Figure 5: an ultrasonic image display window (waveform diagram display window), a pile diameter display window (for displaying the crushed stone pile diameter-depth curve), a first depth curve display window for the crushed stone pile (for displaying the crushed stone pile extraction speed-depth curve), and a second depth curve display window for the crushed stone pile (for displaying the crushed stone pile filling coefficient-depth curve). Thus, through the detection device described in this application, the diameter of the pile formed by granular material can be detected in real time during the formation of the crushed stone pile, and the diameter of the crushed stone pile at different vertical elevations can be displayed in digital and graphical form, comprehensively reflecting the actual situation of pile formation.

[0054] Figure 6 shows a flowchart of a method for detecting the diameter of a crushed stone pile using the aforementioned detection device, according to another aspect of this application. The method includes steps S11 to S13, wherein: Step S11, determining the distance between the transducers installed on both sides of the pile pipe and the center of the pile pipe; Step S12, during crushed stone pile construction, turning on the transducers, and after the pile pipe sinks to the target elevation, starting vibration to discharge the crushed stone, forming the pile body; Step S13, receiving the wave signal fed back from the transducers on the analysis system, and calculating the pile diameter based on the wave signal and the distance from the two transducers to the center of the pile pipe. This allows for real-time detection of the pile diameter as the pile pipe is lifted, facilitating timely and intuitive understanding of the pile diameter information by construction personnel and improving construction quality.

[0055] Specifically, transducers are symmetrically installed on both sides of the pile pipe. The distance between the two transducers and the center of the pile pipe is calculated, denoted as 'a'. That is, the distance between transducer A and the center of the pile pipe is 'a'. The pile pipe and the transducers are fixedly connected. During the construction of the crushed stone pile, the transducers are turned on and enter the soil along with the pile pipe. When the pile pipe sinks to the design elevation and is vibrated to discharge the crushed stone, the pile body is formed. At the same time, the transducers emit ultrasonic waves for detection. The analysis system calculates the diameter of the crushed stone pile based on the received wave signals and the known distance 'a' between the transducer and the center of the pile pipe.

[0056] In some embodiments of this application, in step S13, the distance between the pile body of the crushed stone pile and the transducers on both sides is calculated based on the wave signal; the diameter of the crushed stone pile is calculated based on the distance between the pile body and the transducers on both sides and the distance between the transducers and the center of the pile tube. Here, the analysis system calculates the distances x1 and x2 between the crushed stone pile body and the transducers on both sides based on the propagation speed and time of the received wave signal. Based on the known distance a between the transducers and the center of the pile tube, the crushed stone ranges a-x1 and a-x2 on both sides can be calculated, and thus the diameter of the crushed stone pile can be approximately calculated as 2a-x1-x2.

[0057] In some embodiments of this application, the ultrasonic gain and filter are adjusted based on the wave signal to determine the target image; the target image is then displayed in the ultrasonic image display window of the analysis system. Here, the ultrasonic gain and filter are adjusted in the analysis system to improve the waveform image quality until a relatively clear image can be seen in the waveform display window of the display interface. This image is the target image, as shown in Figure 7, the adjusted image.

[0058] In some embodiments of this application, in step S13, the pile diameter corresponding to each set lifting distance can be determined based on the lifting speed of the pile pipe, resulting in multiple sets of data. A pile diameter variation curve for the crushed stone pile is plotted based on these multiple sets of data and displayed in the pile diameter display window. Here, as the pile pipe is lifted, the crushed stone pile falls from the pipe to form the pile body. Simultaneously, the transducer emits ultrasonic waves for detection, and the data change of the pile diameter is observed in real time in the analysis system. Furthermore, based on the lifting speed of the pile pipe, a set of pile diameter data (distance-pile diameter) is obtained for each lifting distance d, resulting in multiple sets of pile diameter data. The pile diameter data calculated in the analysis system is used to generate a crushed stone pile model in real time, and the change in the crushed stone pile diameter during construction can be clearly seen from the display interface. As shown in Figure 8, the display interface includes a pile diameter display window. Based on the lifting speed of the pile pipe, a crushed stone pile diameter-depth curve is generated in real time for each lifting distance d (d = 10cm) using the pile diameter data calculated in the analysis system.

[0059] In some embodiments of this application, the depth of the crushed stone pile can be determined based on the lifting speed of the pile pipe, generating a curve showing the relationship between the extraction speed and depth of the crushed stone pile, and displaying it in the first depth curve display window. The volume of each segment of the crushed stone pile is calculated based on the calculated pile diameter, generating a depth curve showing the filling coefficient of the crushed stone pile, and displaying it in the second depth curve display window. Referring again to Figure 8, a crushed stone pile extraction speed-depth curve is generated based on the lifting speed of the pile pipe and displayed in the interface. The volume of crushed stone in each segment of the pile is calculated based on the measured pile diameter, and then a crushed stone pile filling coefficient-depth curve is generated and displayed in the interface. Thus, the pile diameter can be conveniently detected using only a transducer installed at the bottom of the pile pipe. The pile diameter can be detected in real time as the pile pipe is lifted, allowing construction personnel to quickly and intuitively grasp the pile diameter information and improve construction quality.

[0060] Furthermore, embodiments of this application also provide a computer-readable medium storing computer-readable instructions that can be executed by a processor to implement the aforementioned method for detecting the diameter of a crushed stone pile.

[0061] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that this application is not inherently related to any specific computer, virtual device, or electronic device, and various general-purpose devices can also implement this application. The above descriptions are merely specific embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0062] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0063] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A testing device for detecting the diameter of crushed stone piles, characterized in that, The detection device includes: a pile pipe, a transducer, a transmission device, and an analysis system, wherein, The transducer includes two transducers, which are symmetrically arranged on both sides of the pile pipe; A crushed stone pile is formed inside the pile tube, and the transducer is used to emit ultrasonic waves to detect the crushed stone pile inside the pile tube and obtain wave signals. The transmission device is connected to the transducer and is used to transmit the wave signal detected by the transducer to the analysis system. The analysis system is used to calculate the diameter of the crushed stone pile based on the wave signal and the distance from the two transducers to the center of the pile tube.

2. The detection device according to claim 1, characterized in that, The elevation of the transducer is lower than the lowest point of the pile pipe.

3. The detection device according to claim 1, characterized in that, The distance between the transducer and the pile pipe is greater than or equal to a set detection blind zone, wherein the detection blind zone is set based on the ultrasonic frequency emitted by the transducer.

4. The detection device according to claim 1, characterized in that, A conduit is installed inside the pile pipe, and the transmission device includes a data transmission line, which is connected to the transducer through the conduit.

5. The detection device according to claim 1, characterized in that, The analysis system includes a display screen, which displays an ultrasonic image, a pile diameter, a first depth curve of the crushed stone pile, and a second depth curve of the crushed stone pile.

6. A method for detecting the diameter of a crushed stone pile using the detection device according to any one of claims 1 to 5, characterized in that, The method includes: Determine the distance between the transducers installed on both sides of the pile pipe and the center of the pile pipe; When constructing crushed stone piles, the transducer is turned on, and after the pile pipe sinks to the target elevation, vibration is started to discharge the material to form the pile body of the crushed stone pile. The analysis system receives wave signals fed back from the transducers and calculates the diameter of the crushed stone pile based on the wave signals and the distances from the two transducers to the center of the pile pipe.

7. The method according to claim 6, characterized in that, The diameter of the crushed stone pile is calculated based on the wave signal and the distance from the two transducers to the center of the pile tube, including: The distance between the pile body and the transducers on both sides of the stone pile is calculated based on the wave signal. The diameter of the crushed stone pile is calculated based on the distance between the pile body and the transducers on both sides, as well as the distance between the transducers and the center of the pile pipe.

8. The method according to claim 6, characterized in that, The method includes: Based on the wave signal, the ultrasonic gain and filter are adjusted to determine the target image; The target image is displayed in the ultrasonic image display window of the analysis system.

9. The method according to claim 6, characterized in that, The method includes: Based on the lifting speed of the pile pipe, the diameter of the pile body corresponding to each set lifting distance is determined, and multiple sets of data are obtained; Based on multiple sets of data, a curve showing the change in the diameter of the crushed stone pile is plotted, and the curve is displayed in the pile diameter display window.

10. The method according to claim 6, characterized in that, The method includes: The depth of the crushed stone pile is determined based on the lifting speed of the pile pipe, and a curve corresponding to the extraction speed and depth of the crushed stone pile is generated and displayed in the first depth curve display window of the crushed stone pile. The volume of each section of the crushed stone pile is calculated based on the calculated pile diameter, and a depth curve of the crushed stone pile filling coefficient is generated and displayed in the second depth curve display window of the crushed stone pile.

11. A computer-readable medium having stored thereon computer-readable instructions that can be executed by a processor to implement the method as described in any one of claims 6 to 10.

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