Detection device and detection method for gravel pile diameter detection

Abstract

The invention aims to provide a detection device and a detection method for gravel pile diameter detection. According to the detection device and the detection method, the distance between transducers mounted on the two sides of a pile pipe and the center of the pile pipe is determined; when gravel pile construction is carried out, the energy converter is started, vibration blanking is started when the pile pipe sinks to the target elevation, and a pile body of a gravel pile is formed; wave signals fed back by the transducers are received on an analysis system, and the pile body diameter of the gravel pile is calculated based on the wave signals and the distance between the two transducers and the center of the pile pipe. Therefore, the pile diameter can be detected in real time along with lifting of the pile pipe, constructors can conveniently and visually master pile diameter information in time, and construction quality is improved.

Description

Technical Field

[0001] The present application relates to the field of geotechnical engineering, and in particular to a detection device and a detection method for detecting the diameter of a gravel pile. Background Art

[0002] At present, the detection technology of gravel piles is updated slowly. Most of them detect the density and continuity of gravel piles through dynamic probing tests, and there is no direct detection method for the diameter of gravel piles. On the other hand, gravel piles are piled below the mud surface and are granular piles. There is no way to know whether there are phenomena such as diameter expansion and diameter contraction that affect the construction quality. Moreover, the construction of gravel piles is a concealed project. The quality of pile formation directly affects the effect of foundation treatment. The diameter of gravel piles is one of the important indicators affecting the quality of pile formation. At present, there is an urgent need for an intelligent, digital, intuitive and easy-to-operate gravel pile diameter detection method. It is an urgent task to study a technology that can detect the pile diameter size at different depths when gravel piles are formed. Summary of the invention

[0003] One purpose of the present application is to provide a detection device and a detection method for gravel pile diameter detection, so as to solve the problems in the prior art that the pile diameter dimensions at different depths when the gravel pile is formed cannot be detected and the construction personnel cannot intuitively grasp the pile diameter information, thus affecting the construction quality.

[0004] According to one aspect of the present application, a detection device for detecting the diameter of a gravel pile is provided, the detection device comprising: a pile pipe, a transducer, a transmission device and an analysis system, wherein:

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

[0006] A gravel pile is formed in the pile pipe, and the transducer is used to emit ultrasonic waves to detect the gravel pile in the pile pipe and obtain a wave signal;

[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 gravel pile body according to the wave signal and the distance from the two transducers to the center of the pile pipe.

[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 area, wherein the detection blind area is set based on the ultrasonic frequency emitted by the transducer.

[0011] Optionally, a threading pipe is provided in the pile pipe, and the transmission device comprises a data transmission line, and the data transmission line is connected to the transducer through the threading pipe.

[0012] Optionally, the analysis system comprises a display screen, and the display screen comprises an ultrasonic image display window, a pile diameter display window, a gravel pile first depth curve display window and a gravel pile second depth curve display window.

[0013] According to another aspect of the present application, a method for detecting the diameter of a gravel pile using the above-mentioned 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 gravel piles, turn on the transducer, wait for the pile pipe to sink to the target elevation, and start vibrating and feeding to form the gravel pile body;

[0016] The wave signal fed back by the transducer is received on the analysis system, and the pile body diameter of the gravel pile is calculated based on the wave signal and the distance from the two transducers to the center of the pile pipe.

[0017] Optionally, calculating the pile diameter of the gravel pile based on the wave signal and the distances from the two transducers to the pile pipe center comprises:

[0018] Calculate the distance between the pile body of the gravel pile and the transducers on both sides based on the wave signal;

[0019] The diameter of the gravel pile is calculated according to 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.

[0020] Optionally, the method comprises:

[0021] adjusting ultrasonic gain and filter based on the wave signal to determine a target image;

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

[0023] Optionally, the calculating the pile diameter of the gravel pile according to 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] According to the lifting speed of the pile pipe, the pile diameter corresponding to each set lifting distance is determined to obtain multiple sets of data;

[0025] A pile diameter variation curve of the gravel pile is drawn according to the multiple sets of data, and the pile diameter variation curve is displayed in a pile diameter display window.

[0026] Optionally, the method comprises:

[0027] Determine the depth of the gravel pile body according to the lifting speed of the pile pipe, generate a corresponding curve between the pulling speed and depth of the gravel pile, and display it in the first depth curve display window of the gravel pile;

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

[0029] According to another aspect of the present application, a computer-readable medium is provided, on which computer-readable instructions are stored. The computer-readable instructions can be executed by a processor to implement the method described above.

[0030] Compared with the prior art, the present invention determines the distance between the transducers installed on both sides of the pile pipe and the center of the pile pipe; when constructing a gravel pile, the transducers are turned on, and when the pile pipe sinks to the target elevation, vibration feeding begins to form the gravel pile body; the wave signal fed back by the transducer is received on the analysis system, and the diameter of the gravel pile body is calculated based on the wave signal and the distance between the two transducers and the center of the pile pipe. Thus, the pile diameter can be detected in real time as the pile pipe is lifted, which is convenient for construction personnel to grasp the pile diameter information in a timely and intuitive manner, thereby improving the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0032] Figure 1 A schematic structural diagram of a detection device for detecting the diameter of a gravel pile provided according to one aspect of the present application is shown;

[0033] Figure 2 A schematic diagram showing the structure of a device for real-time detection of the diameter of a gravel pile in one embodiment of the present application is shown;

[0034] Figure 3 A schematic diagram showing a pile pipe shaking off a gravel pile in one embodiment of the present application is shown;

[0035] Figure 4 A schematic diagram of a side threading pipeline of a pile pipe in an embodiment of the present application is shown;

[0036] Figure 5 A schematic diagram showing an interface window of a display screen of an analysis system in one embodiment of the present application;

[0037] Figure 6 A schematic flow chart of a method for detecting the diameter of a gravel pile using the aforementioned detection device according to another aspect of the present application is shown;

[0038] Figure 7A waveform diagram showing an adjusted analysis system in one embodiment of the present application is shown;

[0039] Figure 8 A data schematic diagram showing real-time detection of gravel piles in an embodiment of the present application is shown.

[0040] The same or similar reference numerals in the drawings represent the same or similar components. DETAILED DESCRIPTION

[0041] The following description is used to disclose the present application so that those skilled in the art can implement the present application. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present application defined in the following description can be applied to other embodiments, variations, improvements, equivalent solutions, and other technical solutions that do not deviate from the spirit and scope of the present application.

[0042] The following is combined with Figure 1-8 The present application is further described in detail with reference to the exemplary embodiments of the present application. However, the exemplary embodiments can be implemented in various forms, and should not be understood as the present application being limited to the embodiments set forth herein. On the contrary, providing these exemplary embodiments enables the present application to be more comprehensive and complete, and is more convenient for fully conveying the inventive concept to those skilled in the art. The same reference numerals in the figures represent the same or similar elements, components or parts, and thus their repeated description will be omitted.

[0043] Under the premise of being consistent with the technical concept of the present application, the features, structures, characteristics or other details described in a specific embodiment do not exclude that they can 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 does not exclude 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 only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[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 may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0047] The term "and / or" or "and / or" includes all combinations of any one or more of the associated listed items.

[0048] Figure 1 A structural schematic diagram of a detection device for detecting the diameter of a gravel pile provided according to one aspect of the present application is shown, the detection device comprising: a pile pipe 100, a transducer 200, a transmission device 300 and an analysis system 400, wherein the transducer 200 comprises two transducers symmetrically arranged on both sides of the pile pipe 100; a gravel pile is formed in the pile pipe 100, the transducer 200 is used to emit ultrasonic waves to detect the gravel pile in the pile pipe 100 and obtain a wave signal; the transmission device 300 is connected to the transducer 200, and is used to transmit the wave signal detected by the transducer 200 to the analysis system 400; the analysis system 400 is used to calculate the diameter of the gravel pile body according to the wave signal and the distance from the two transducers to the center of the pile pipe. In addition, the diameter of the gravel pile can be conveniently detected by only using the transducer installed at the bottom of the pile pipe, which is convenient for construction personnel to grasp the pile diameter information in a timely and intuitive manner and improve the construction quality.

[0049] Specifically, Figure 2The schematic diagram of the structure of the device for real-time detection of the diameter of the gravel pile shown in the figure, 1 is a transducer, 2 is a pile pipe, 3 is a gravel pile, 4 is an analysis system, and a transmission device (not shown). Two transducers are set along the diameter direction of the pile pipe section. The transducers are ultrasonic transducers with a frequency range of 10 to 80kHz. The transducers are fixedly connected to the pile pipe. When the gravel pile is constructed, the transducer is turned on and the transducer enters the soil together with the pile pipe. When the pile pipe sinks to the design elevation and vibrates to discharge the material, the ultrasonic gain and filter are adjusted in the analysis system to improve the quality of the waveform image. As the pile pipe is lifted, the gravel falls from the pile pipe to form a pile body. The transducer simultaneously emits ultrasonic waves for detection. Since the gravel and the soil are different materials, there will be an obvious interface between the pile body and the soil body during the formation process. The sound waves at the interface between the two will be reflected. By adjusting the ultrasonic gain and filter until a clearer image can be seen in the waveform display window in the display interface of the analysis system. The analysis system calculates the distances x1 and x2 between the gravel pile and the transducers on both sides according to the propagation speed and time of the received wave signal. Based on the known distance a between the transducer and the center of the pile pipe, the gravel ranges a-x1 and a-x2 on both sides can be calculated, and then the diameter of the gravel pile can be approximately calculated as 2a-x1-x2. The data changes of the pile diameter can be seen in real time in the analysis system.

[0050] In some embodiments of the present application, the elevation of the transducer 200 is lower than the lowest point of the pile pipe 100. Here, during construction, the pile pipe is lifted, and the gravel falls from the pile pipe into the soil to form a gravel pile body. The elevation of the transducer is lower than the lowest point of the pile pipe structure. The transducer is set at a lower position on the one hand to prevent the pile pipe from blocking the gravel pile and on the other hand to wait for the gravel to fall and form a stable pile body for measurement to obtain an accurate diameter. Figure 3 As shown, when the gravel falls, it first scatters into a cone shape and then accumulates into a cylindrical pile. Therefore, the transducer position should be set below the lowest point of the pile pipe structure.

[0051] In some embodiments of the present application, the distance between the transducer 200 and the pile pipe 100 is greater than or equal to a set detection blind area, wherein the detection blind area 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, wherein L is the detection blind area, and the value of L is related to the ultrasonic frequency emitted by the transducer. The blind area is an area close to the ultrasonic probe, and since the ultrasonic wave will be affected by the probe during the propagation process, the objects in this area cannot be accurately detected, thus forming a blind area.

[0052] In some embodiments of the present application, a threading pipe is provided in the pile pipe, and the transmission device includes a data transmission line, and the data transmission line is connected to the transducer through the threading pipe. Here, a threading pipe is provided in the pile pipe, and a data transmission line capable of sending data is arranged in the threading pipe, and the detected data is transmitted to the analysis system through the data transmission line; Figure 4 As shown in the side view of the wire threading pipe, a wire threading pipe is arranged inside the pile pipe along the direction of the arrow. The wire threading pipe plays a protective role to prevent the data transmission line from being damaged due to vibration and wear after entering the soil.

[0053] In some embodiments of the present application, the analysis system includes a display screen, which includes an ultrasonic image display window, a pile diameter display window, a gravel pile first depth curve display window, and a gravel pile second depth curve display window. Here, the analysis system includes a display device, that is, a display screen, which can be divided into four windows, such as Figure 5 As shown, it is divided into an ultrasonic image display window (waveform display window), a pile diameter display window (for displaying a stone pile diameter-depth curve), a stone pile first depth curve display window (for displaying a stone pile pipe removal speed-depth curve) and a stone pile second depth curve display window (for displaying a stone pile filling coefficient-depth curve). Thus, through the detection device described in the present application, the diameter of the pile body formed by the granular material can be detected in real time during the formation of the stone pile, and the diameter of the stone pile at different elevations along the vertical direction can be displayed in digital and image form, which fully reflects the actual situation of the pile body formation.

[0054] Figure 6 A schematic flow chart of a method for detecting the diameter of a gravel pile using the aforementioned detection device according to another aspect of the present application is shown, the method comprising: steps S11 to S13, wherein, in step S11, the distance between the transducers installed on both sides of the pile pipe and the center of the pile pipe is determined; in step S12, when the gravel pile is constructed, the transducer is turned on, and the pile pipe is sunk to the target elevation, and vibration feeding is started to form the pile body of the gravel pile; in step S13, the wave signal fed back by the transducer is received on the analysis system, and the diameter of the gravel pile body is calculated based on the wave signal and the distance between the two transducers and the center of the pile pipe. Thus, the pile diameter can be detected in real time as the pile pipe is lifted, which is convenient for construction personnel to grasp the pile diameter information in a timely and intuitive manner, and improve the construction quality.

[0055] Specifically, transducers are symmetrically installed on both sides of the pile pipe, and the distance between the two transducers and the center of the pile pipe is calculated, which is a, that is, the distance between transducer A and the center of the pile pipe and the distance between transducer B and the center of the pile pipe are both a. The pile pipe is fixedly connected to the transducer. When the gravel pile is constructed, the transducer is turned on and enters the soil together with the pile pipe. When the pile pipe sinks to the designed elevation and vibrates and discharges the material, the pile body of the gravel pile is formed. At the same time, the transducer emits ultrasonic waves for detection. The analysis system calculates the diameter of the gravel pile body according to the received wave signal and the known distance a between the transducer and the center of the pile pipe.

[0056] In some embodiments of the present application, in step S13, the distance between the gravel pile body and the transducers on both sides is calculated based on the wave signal; the diameter of the gravel pile body is calculated according to 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. Here, the analysis system calculates the distances x1 and x2 between the gravel pile body and the transducers on both sides according to the propagation speed and time of the received wave signal, and according to the known distance a between the transducer and the center of the pile pipe, the gravel ranges a-x1 and a-x2 on both sides can be calculated, and then the diameter of the gravel pile body can be approximately calculated as 2a-x1-x2.

[0057] In some embodiments of the present application, the ultrasonic gain and filter are adjusted based on the wave signal to determine the target image; the target image is 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 quality of the waveform image until a relatively clear image can be seen in the waveform display window in the display interface. The image at this time is the target image, such as Figure 7 The resulting image after adjustment is shown.

[0058] In some embodiments of the present application, in step S13, the pile body diameter corresponding to each set lifting distance can also be determined according to the lifting speed of the pile pipe, and multiple groups of data can be obtained; the pile body diameter change curve of the gravel pile can be drawn according to the multiple groups of data, and the pile body diameter change curve can be displayed in the pile diameter display window. Here, as the pile pipe is lifted, the gravel pile falls from the pile pipe to form a pile body, and the transducer simultaneously emits ultrasonic waves for detection, and the data changes of the pile body diameter can be seen in real time in the analysis system. Furthermore, according to the lifting speed of the pile pipe, for each lifting distance d, a group of pile diameter data can be obtained for each lifting distance d, and multiple groups of pile diameter data (distance-pile diameter) can be obtained, and the pile diameter data calculated in the analysis system can be used to generate a gravel pile body model in real time. The changes in the gravel pile diameter during the construction process can be clearly seen from the display interface. Figure 8 The display interface shown includes a pile diameter display window. According to the pile pipe lifting speed, for each lifting distance d (d=10 cm), the pile diameter data calculated in the analysis system is used to generate a gravel pile diameter-depth curve in real time.

[0059] In some embodiments of the present application, the depth of the gravel pile can be determined according to the lifting speed of the pile pipe, and a corresponding curve of the gravel pile pulling speed and depth can be generated and displayed in the first depth curve display window of the gravel pile; the volume of each section of the gravel pile can be calculated according to the calculated pile diameter, and a depth curve of the gravel pile filling coefficient can be generated and displayed in the second depth curve display window of the gravel pile. Figure 8 , according to the pile pipe lifting speed, the stone pile extraction speed-depth curve is generated and displayed in the display interface, and the stone volume of each section of the pile is calculated according to the measured pile diameter, and then the stone pile filling coefficient-depth curve is generated and displayed in the interface. Therefore, the pile diameter of the stone pile can be conveniently detected only by the transducer installed at the bottom of the pile pipe, and the pile diameter can be detected in real time as the pile pipe is lifted, which is convenient for construction personnel to grasp the pile diameter information in a timely and intuitive manner and improve the construction quality.

[0060] In addition, an embodiment of the present application further provides a computer-readable medium on which computer-readable instructions are stored. The computer-readable instructions can be executed by a processor to implement the aforementioned method for detecting the diameter of a gravel pile.

[0061] The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the present application is not inherently related to any specific computer, virtual device or electronic device, and various general devices can also implement the present application. The above description is only a specific embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

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

[0063] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A detection device for detecting the diameter of a gravel pile, characterized in that: The detection device includes: a pile pipe, a transducer, a transmission device and an analysis system, wherein: The transducer comprises two transducers, which are symmetrically arranged on both sides of the pile pipe; A gravel pile is formed in the pile pipe, and the transducer is used to emit ultrasonic waves to detect the gravel pile in the pile pipe and obtain a wave signal; 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 pile diameter of the gravel pile according to the wave signal and the distance from the two transducers to the pile pipe center.

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 area, wherein the detection blind area is set based on the ultrasonic frequency emitted by the transducer.

4. The detection device according to claim 1, characterized in that: A threading pipe is arranged in the pile pipe, and the transmission device comprises a data transmission line, and the data transmission line is connected to the transducer through the threading pipe.

5. The detection device according to claim 1, characterized in that: The analysis system comprises a display screen, which comprises an ultrasonic image display window, a pile diameter display window, a gravel pile first depth curve display window and a gravel pile second depth curve display window.

6. A method for detecting the diameter of a gravel pile using the detection device according to any one of claims 1 to 5, characterized in that: The method comprises: Determine the distance between the transducers installed on both sides of the pile pipe and the center of the pile pipe; When constructing gravel piles, turn on the transducer, wait for the pile pipe to sink to the target elevation, and start vibrating and feeding to form the gravel pile body; The wave signal fed back by the transducer is received on the analysis system, and the pile body diameter of the gravel pile is calculated based on the wave signal and the distance 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 gravel pile is calculated based on the wave signal and the distances from the two transducers to the center of the pile pipe, including: Calculate the distance between the pile body of the gravel pile and the transducers on both sides based on the wave signal; The diameter of the gravel pile is calculated according to 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.

8. The method according to claim 6, characterized in that The method comprises: adjusting ultrasonic gain and filter based on the wave signal to determine a 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 comprises: According to the lifting speed of the pile pipe, the pile diameter corresponding to each set lifting distance is determined to obtain multiple sets of data; A pile diameter variation curve of the gravel pile is drawn according to the multiple sets of data, and the pile diameter variation curve is displayed in a pile diameter display window.

10. The method according to claim 6, characterized in that The method comprises: Determine the depth of the gravel pile body according to the lifting speed of the pile pipe, generate a corresponding curve between the pulling speed and depth of the gravel pile, and display it in the first depth curve display window of the gravel pile; The volume of each section of the gravel pile is calculated based on the calculated pile diameter, and a depth curve of the gravel pile filling coefficient is generated and displayed in the second depth curve display window of the gravel pile.

11. A computer-readable medium having computer-readable instructions stored thereon, wherein the computer-readable instructions can be executed by a processor to implement the method according to any one of claims 6 to 10.

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