Sheet type fracture water seepage pressure testing device

Abstract

The invention provides a slice type fracture water seepage pressure testing device which comprises a detection module, the detection module comprises an elastic substrate, a strain gauge and a waterproof layer, the strain gauge is arranged on the elastic substrate, the waterproof layer at least covers the strain gauge, and the strain gauge is used for detecting the water seepage pressure of the fracture when the detection module is arranged in the fracture. Different deformation quantities are generated according to different water pressures in the fractures; the signal input end of the processing module is connected with the signal output end of the strain gauge, and the processing module is used for collecting the deformation quantity of the strain gauge according to a preset sampling frequency range, obtaining the water pressure of the crack according to the deformation quantity of the strain gauge and recording the obtained water pressure along a timeline. According to the slice-type crack water seepage pressure testing device, the slice-type detection module can be easily inserted into a crack with a narrow space and can be matched with the processing module to accurately test the crack water seepage pressure, the overall structural design of the device is simple, and the manufacturing cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of water pressure testing, in particular to a sheet type fracture water pressure testing device. BACKGROUND

[0002] Fracture water pressure testing is a key technology in geological engineering, which is used to evaluate information such as groundwater resources, geological structure and groundwater level changes. However, due to the different shapes of fractures and the narrow operation space, the traditional fracture water pressure testing device is difficult to insert into the fracture, and cannot realize accurate measurement of water pressure. At the same time, the traditional fracture water pressure testing device is complex in design and high in manufacturing cost. SUMMARY

[0003] The present disclosure aims to at least partially solve one of the technical problems in the related art.

[0004] To this end, the purpose of the present disclosure is to provide a sheet type fracture water pressure testing device.

[0005] To achieve the above purpose, the present disclosure provides a sheet type fracture water pressure testing device, comprising: a detection module, the detection module comprising: an elastic substrate, a strain gauge and a waterproof layer, the strain gauge being arranged on the elastic substrate, and the waterproof layer covering at least the strain gauge, wherein the strain gauge is used to generate different deformation amounts according to different water pressures in the fracture when the detection module is arranged in the fracture; a processing module, the signal input end of the processing module being connected with the signal output end of the strain gauge, and the processing module being used to collect the deformation amount of the strain gauge according to a preset sampling frequency range, and obtain the water pressure of the fracture according to the deformation amount of the strain gauge, and record the obtained water pressure along a time line.

[0006] Optionally, the device further comprises: an adaptive sampling module, the adaptive sampling module being arranged on the processing module, and the communication end of the adaptive sampling module being connected with the communication end of the processing module, the adaptive sampling module being used to adjust the sampling frequency of the processing module within the preset sampling frequency range according to the change of the water pressure obtained by the processing module; wherein, when the change amplitude of the water pressure is greater than a first preset amplitude, the sampling frequency of the processing module is increased, and when the change amplitude of the water pressure is less than a second preset amplitude, the sampling frequency of the processing module is decreased; the second preset amplitude is less than the first preset amplitude.

[0007] Optionally, the device further comprises a self-calibration module, which is arranged on the processing module, and a communication end of the self-calibration module is connected with a communication end of the processing module, and the self-calibration module is used to correct the processing module according to a deviation between the water pressure obtained by the processing module in a standard water pressure environment and the standard water pressure when the detection module is arranged in the standard water pressure environment, so that the water pressure obtained by the processing module in the standard water pressure environment is consistent with the standard water pressure.

[0008] Optionally, the device further comprises a signal line, which is arranged between a signal input end of the processing module and a signal output end of the strain gauge, and a signal output end of the signal line is connected with a signal input end of the processing module; wherein the signal line is provided with a scale line, and a scale of the scale line increases in a direction from the strain gauge to the processing module.

[0009] Optionally, the elastic substrate is provided with a hanging hole, and the hanging hole is used to hang a gravity block when the detection module is arranged in a standard water pressure environment.

[0010] Optionally, the detection module further comprises a wedge-shaped elastic clamp, which is arranged on the elastic substrate, and a thickness of the wedge-shaped elastic clamp linearly increases in a direction from inside to outside of the fissure.

[0011] Optionally, the device further comprises a warning module, which is arranged on the processing module, and a signal input end of the warning module is connected with a signal output end of the processing module, and the warning module is used to send corresponding warning information according to an operating state of the processing module.

[0012] Optionally, the device further comprises a touch display module, which is arranged on the processing module, and a communication end of the touch display module is connected with a communication end of the processing module, and the touch display module is used to send a preset sampling frequency range to the processing module, and display the water pressure obtained by the processing module.

[0013] Optionally, the device further comprises a power module, a power input end of the power module is connected with a power output end of an external power source, and a power output end of the power module is connected with a power input end of the processing module.

[0014] Optionally, the device further comprises a wireless communication module, which is arranged on the processing module, and a signal input end of the wireless communication module is connected with a signal output end of the processing module, and a signal output end of the wireless communication module is wirelessly connected with a signal input end of a remote server, and the processing module is used for sending the obtained water pressure to the remote server through the wireless communication module.

[0015] The technical solutions provided by the present disclosure can include the following beneficial effects: The thin-sheet detection module can be easily inserted into a narrow crack, and the crack water pressure can be accurately tested in cooperation with the processing module. Moreover, the overall structure of the device is simple, and the manufacturing cost is effectively reduced. Based on the thin-sheet crack water pressure testing device, the crack water pressure testing is more convenient and efficient, and can be applied in a wider geological engineering field, thereby providing a new technical means for underground water resource evaluation and geological structure research.

[0016] Additional aspects and advantages of the present disclosure will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which: Figure 1 is a structural schematic diagram of a thin-sheet crack water pressure testing device according to an embodiment of the present disclosure; Figure 2 is a structural schematic diagram of a wedge-shaped elastic clamp in a thin-sheet crack water pressure testing device according to an embodiment of the present disclosure; As shown in the figure: 1, detection module, 11, elastic substrate, 12, strain gauge, 13, waterproof layer, 14, wedge-shaped elastic clamp, 2, processing module, 3, adaptive sampling module, 4, self-calibration module, 5, signal line, 6, warning module, 7, touch display module, 8, power module, 9, wireless communication module. DETAILED DESCRIPTION

[0018] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present disclosure, and cannot be understood as a limitation of the present disclosure. On the contrary, the embodiments of the present disclosure include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0019] As Figure 1As shown, the embodiment of the present disclosure provides a thin-plate type fracture water permeation pressure testing device, which comprises a detection module 1 and a processing module 2. The detection module 1 comprises an elastic substrate 11, a strain gauge 12 and a waterproof layer 13. The strain gauge 12 is arranged on the elastic substrate 11, and the waterproof layer 13 covers at least the strain gauge 12. The strain gauge 12 is used to generate different deformation amounts according to different water pressures in the fracture when the detection module 1 is arranged in the fracture. The signal input end of the processing module 2 is connected with the signal output end of the strain gauge 12. The processing module 2 is used to collect the deformation amount of the strain gauge 12 according to a preset sampling frequency range, obtain the water pressure of the fracture according to the deformation amount of the strain gauge 12, and record the obtained water pressure along a time line.

[0020] It can be understood that, since the strain gauge 12 is arranged on the elastic substrate 11, the elastic substrate 11 can provide support for the strain gauge 12, so as to ensure the stable arrangement of the strain gauge 12 in the fracture. Meanwhile, since the waterproof layer 13 covers the strain gauge 12, the strain gauge 12 can realize waterproof by using the waterproof layer 13. Thus, the strain gauge 12 forms a thin-plate type pressure detection structure under the cooperation of the elastic substrate 11 and the waterproof layer 13. Since the signal input end of the processing module 2 is connected with the signal output end of the strain gauge 12, the processing module 2 can collect the deformation data of the strain gauge 12. Specifically, when the detection module 1 is arranged in the fracture, the processing module 2 collects the deformation amount of the strain gauge 12 according to the preset sampling frequency range, obtains the water pressure of the fracture according to the deformation amount of the strain gauge 12, and records the obtained water pressure along a time line. Thus, the detection of the fracture water permeation pressure is realized.

[0021] The thin-plate type detection module 1 can be easily inserted into the fracture with a small space, and the fracture water permeation pressure can be accurately tested by cooperating with the processing module 2. Moreover, the overall structure of the device is simple, and the manufacturing cost is effectively reduced. Based on the thin-plate type fracture water permeation pressure testing device, the fracture water pressure testing is more convenient and efficient, and can be applied in a wider geological engineering field, thereby providing a new technical means for the evaluation of underground water resources and the research of geological structure.

[0022] It should be noted that the measurement principle of the processing module 2 based on the strain gauge 12 is that different water pressures cause different deformation amounts of the strain gauge 12, and different deformation amounts generate different resistances, so that the voltage signal obtained based on the measurement circuit (for example, a Wheatstone bridge) is used to measure the pressure. Thus, the corresponding relationship between the water pressure and the deformation amount is established, and the water pressure of the fracture can be obtained based on the deformation amount of the strain gauge 12.

[0023] The slice-type fracture water seepage pressure testing device of the embodiment aims to solve the problems of complex design, high manufacturing cost, cumbersome operation and poor applicability of the traditional fracture water pressure testing device. Through the innovative solution, the operation process is simplified and the cost is reduced, and the applicability to various fracture types is realized. The device makes the fracture water pressure test more convenient, efficient and accurate, and provides technical support for the development of geological engineering field.

[0024] The elastic substrate 11 is used to support the strain gauge 12 and is made of an elastic material, which can facilitate the insertion of the strain gauge 12 into the fracture and ensure that the strain gauge 12 produces different deformation amounts under different water pressures. The specific type of the elastic substrate 11 can be set according to actual needs, and no limitation is made.

[0025] The waterproof layer 13 is used for waterproofing the strain gauge 12 to avoid water in the fracture from entering the strain gauge 12 and causing failure or damage of the strain gauge 12. The specific type of the waterproof layer 13 can be set according to actual needs, and no limitation is made.

[0026] In addition, the waterproof layer 13 can only cover the strain gauge 12, or cover other areas of the elastic substrate 11 (such as the wiring position of the strain gauge 12 on the elastic substrate 11) while covering the strain gauge 12. No limitation is made.

[0027] The strain gauge 12 is used to produce different deformation amounts under different water pressures, thereby showing different resistance values. The specific type of the strain gauge 12 can be set according to actual needs, and no limitation is made. The strain gauge 12 can be a circular metal arranged at one end of the elastic substrate 11.

[0028] The specific type of the processing module 2 can be set according to actual needs, and no limitation is made. The processing module 2 can be a processor, a micro-control unit, etc., which integrates a pressure detection circuit based on the strain gauge 12.

[0029] As shown in FIG. 1, Figure 1 In some embodiments, the device further includes an adaptive sampling module 3, which is arranged on the processing module 2, and the communication end of the adaptive sampling module 3 is connected with the communication end of the processing module 2. The adaptive sampling module 3 is used to adjust the sampling frequency of the processing module 2 within a preset sampling frequency range according to the change of the water pressure obtained by the processing module 2. When the change amplitude of the water pressure is greater than a first preset amplitude, the sampling frequency of the processing module 2 is increased, and when the change amplitude of the water pressure is less than a second preset amplitude, the sampling frequency of the processing module 2 is decreased. The second preset amplitude is less than the first preset amplitude.

[0030] Understandably, because the communication terminals of the adaptive sampling module 3 and the processing module 2 are connected, the adaptive sampling module 3 can adaptively adjust the sampling frequency of the processing module 2. Specifically, the adaptive sampling module 3 adjusts the sampling frequency of the processing module 2 within a preset sampling frequency range based on the water pressure changes acquired by the processing module 2. Specifically, when the water pressure change is greater than a first preset range, the sampling frequency of the processing module 2 is increased; and when the water pressure change is less than a second preset range, the sampling frequency of the processing module 2 is decreased. Therefore, by utilizing dynamic adjustment of the sampling frequency, the efficiency and storage utilization of the processing module 2 can be improved while ensuring data quality.

[0031] It should be noted that when the change in water pressure is greater than the first preset range, it indicates that the water pressure change in the fissure is large. Therefore, the sampling frequency is increased to avoid missing key water pressure change data and ensure accurate measurement of water pressure in the fissure. When the change in water pressure is less than the second preset range, it indicates that the water pressure change in the fissure is small. Therefore, the sampling frequency is reduced to reduce more invalid data and improve the efficiency and storage utilization of processing module 2.

[0032] The specific type of the adaptive sampling module 3 can be set according to actual needs, and there are no restrictions on it.

[0033] like Figure 1 As shown, in some embodiments, the device further includes a self-calibration module 4, which is disposed on the processing module 2 and the communication terminal of the self-calibration module 4 is connected to the communication terminal of the processing module 2. The self-calibration module 4 is used to correct the processing module 2 according to the offset between the water pressure obtained by the processing module 2 in the standard water pressure environment and the standard water pressure when the detection module 1 is arranged in the standard water pressure environment, so as to make the water pressure obtained by the processing module 2 in the standard water pressure environment consistent with the standard water pressure.

[0034] Understandably, because the communication terminals of the self-calibration module 4 and the processing module 2 are connected, the self-calibration module 4 can perform self-calibration of the processing module 2. Specifically, when the detection module 1 is placed in a standard water pressure environment, the self-calibration module 4 corrects the processing module 2 based on the offset between the water pressure obtained by the processing module 2 in the standard water pressure environment and the standard water pressure, so that the water pressure obtained by the processing module 2 in the standard water pressure environment is consistent with the standard water pressure. Thus, by utilizing the automatic calibration of the self-calibration module 4, manual intervention is reduced, and the reliability of the equipment is improved.

[0035] It should be noted that the standard water pressure environment can be a sample container, for example, after the container is filled with water, water pressure is measured at different depths using a standard instrument, thereby establishing the correspondence between water depth and standard water pressure. Based on this, the detection module 1 is arranged at different depths, the self-calibration module 4 records the detected water pressure corresponding to different depths obtained by the processing module 2, compares the detected water pressure with the standard water pressure, and automatically adjusts the gain and offset of the processing module 2 to ensure that its output is consistent with the standard water pressure.

[0036] The specific type of the self-calibration module 4 can be set according to actual needs, and there are no restrictions on it.

[0037] like Figure 1 As shown, in some embodiments, the device further includes a signal line 5, which is disposed between the signal input terminal of the processing module 2 and the signal output terminal of the strain gauge 12, and the signal output terminal of the signal line 5 is connected to the signal input terminal of the processing module 2. The signal line 5 is provided with scale lines, the scale of which increases along the direction from the strain gauge 12 to the processing module 2.

[0038] It is understandable that, since the signal input terminal of signal line 5 is connected to the signal output terminal of strain gauge 12, and the signal output terminal of signal line 5 is connected to the signal input terminal of processing module 2, communication between strain gauge 12 and processing module 2 can be achieved using signal line 5. Furthermore, since signal line 5 is provided with scale lines, and the scale of the scale lines increases along the direction from strain gauge 12 to processing module 2, when detection module 1 is placed in a standard water pressure environment, the water depth position of strain gauge 12 can be quickly determined using the scale lines, thereby ensuring the accurate calibration of processing module 2 by self-calibration module 4.

[0039] It should be noted that signal line 5 is used for communication between strain gauge 12 and processing module 2. The specific type of signal line 5 can be set according to actual needs and is not limited thereto. Among them, the scale lines can be marked every 10 centimeters starting from strain gauge 12, and gradually increasing to the processing module 2.

[0040] In some embodiments, the elastic substrate 11 is provided with hanging holes, which are used to hang a gravity block when the detection module 1 is arranged in a standard water pressure environment.

[0041] It is understandable that, since the elastic substrate 11 is provided with hanging holes, when the detection module 1 is placed in a standard water pressure environment, the hanging holes can be used to hang a gravity block, thereby using the gravity block to ensure that the strain gauge 12 can sink stably and uniformly in the water, thus ensuring the accurate calibration of the processing module 2 by the self-calibration module 4.

[0042] It should be noted that the specific type of gravity block can be set according to actual needs, and no limitation is made thereto. For example, the gravity block can be a stainless steel block or other corrosion-resistant block.

[0043] As shown in Figure 1 and Figure 2 In some embodiments, the detection module 1 further comprises a wedge-shaped elastic clamp 14, which is arranged on the elastic substrate 11, and the thickness of the wedge-shaped elastic clamp 14 increases linearly in the direction from the inside to the outside of the crack.

[0044] It can be understood that, since the wedge-shaped elastic clamp 14 is arranged on the elastic substrate 11, and the thickness of the wedge-shaped elastic clamp 14 increases linearly in the direction from the inside to the outside of the crack, the elastic substrate 11 can be effectively embedded in the crack by the wedge-shaped elastic clamp 14, ensuring that the strain gauge 12 is stable during the test and avoiding displacement caused by water flow or external force, thereby improving the accuracy of measurement.

[0045] At the same time, the wedge-shaped elastic clamp 14 can also cooperate with the waterproof layer 13 to provide additional waterproof protection for the area on the elastic substrate 11 (for example, the wiring position of the strain gauge 12 on the elastic substrate 11), preventing moisture from entering and affecting the normal work of the electronic elements.

[0046] It should be noted that the wedge-shaped elastic clamp 14 is used for stable embedding of the elastic substrate 11 in the crack, and the specific type of the wedge-shaped elastic clamp 14 can be set according to actual needs, and no limitation is made thereto.

[0047] As shown in Figure 1 In some embodiments, the device further comprises an alarm module 6, which is arranged on the processing module 2, and the signal input end of the alarm module 6 is connected with the signal output end of the processing module 2. The alarm module 6 is used to send corresponding alarm information according to the running state of the processing module 2.

[0048] It can be understood that, since the signal input end of the alarm module 6 is connected with the signal output end of the processing module 2, the alarm module 6 and the processing module 2 can communicate with each other. Specifically, the alarm module 6 sends corresponding alarm information according to the running state of the processing module 2, so that the operating personnel can intuitively obtain the running state of the processing module 2.

[0049] For example, the alarm module 6 can be used to indicate the opening state, the closing state, the abnormal state, the calibration state, etc. of the processing module 2 by using alarm information.

[0050] It should be noted that the specific type of the alarm module 6 can be set according to actual needs, and no limitation is made thereto. For example, the alarm module 6 can be an alarm lamp, which realizes the sending of alarm information by using flickering light.

[0051] AsFigure 1 As shown, in some embodiments, the device further includes a touch display module 7, which is disposed on the processing module 2, and the communication terminal of the touch display module 7 is connected to the communication terminal of the processing module 2. The touch display module 7 is used to send a preset sampling frequency range to the processing module 2 and to display the water pressure obtained by the processing module 2.

[0052] It is understandable that since the communication terminal of the touch display module 7 is connected to the communication terminal of the processing module 2, the touch display module 7 and the processing module 2 can communicate with each other. Specifically, the touch display module 7 sends the preset sampling frequency range to the processing module 2 and displays the water pressure obtained by the processing module 2, thereby realizing human-computer interaction and making the test of crack seepage pressure more flexible and convenient.

[0053] It should be noted that the specific type of the touch display module 7 can be set according to actual needs, and there are no restrictions on it. For example, the touch display module 7 can be an integrated touch display screen.

[0054] In addition to displaying real-time pressure data, the touch display module 7 can also display the on / off status, abnormal status, and calibration status of the processing module 2.

[0055] like Figure 1 As shown, in some embodiments, the device further includes a power module 8, the power input terminal of which is connected to the power output terminal of an external power source, and the power output terminal of the power module 8 is connected to the power input terminal of the processing module 2.

[0056] It is understandable that, since the power input terminal of power module 8 is connected to the power output terminal of external power supply, and the power output terminal of power module 8 is connected to the power input terminal of processing module 2, power module 8 can use external power supply to power processing module 2, thereby ensuring stable testing of crack seepage pressure.

[0057] It should be noted that the specific type of power module 8 can be set according to actual needs, and there are no restrictions on it.

[0058] like Figure 1 As shown, in some embodiments, the device further includes: a wireless communication module 9, which is disposed on the processing module 2, and the signal input terminal of the wireless communication module 9 is connected to the signal output terminal of the processing module 2. The signal output terminal of the wireless communication module 9 is wirelessly connected to the signal input terminal of the remote server. The processing module 2 is used to send the obtained water pressure to the remote server through the wireless communication module 9.

[0059] It can be understood that, since the signal input end of the wireless communication module 9 is connected with the signal output end of the processing module 2, and the signal output end of the wireless communication module 9 is wirelessly connected with the signal input end of the remote server, the processing module 2 can wirelessly communicate with the remote server through the wireless communication module 9. Specifically, the processing module 2 sends the obtained water pressure to the remote server through the wireless communication module 9, so as to realize remote monitoring of the test result, and the use is more convenient.

[0060] It should be noted that, based on the remote server, the operator can directly access the data through the mobile phone or computer. Specifically, the operator can view real-time data and receive early warning notifications on the remote device. At the same time, the wireless communication module 9 is set as a bidirectional communication, so that the operator can also remotely set the test parameters.

[0061] Among them, the communication between the processing module 2 and the warning module 6, the touch display module 7, the wireless communication module 9 and other modules can be realized by the switching chip (for example, a line connector) arranged on the processing module 2. At the same time, the electrical connection between the line and the module is realized through the welding point, the terminal and the like.

[0062] Based on the sheet type fracture water pressure test device of the embodiment, the following test steps can be used: 1. Test preparation stage.

[0063] (1) Equipment inspection: 1) Check strain gauges, waterproof glue layers, etc.: Ensure that the strain gauges are intact and the waterproof glue layers are not damaged; 2) Processing module and touch display module inspection: Confirm that the processing module, touch display module, switching chip, power module and the like are in normal working state, and ensure that all connection lines are stable.

[0064] (2) Test environment preparation: 1) Select appropriate fracture: Select appropriate fracture according to test requirements to ensure its representativeness; 2) Clean the environment: Remove the debris around the fracture, keep the environment clean, and avoid affecting the test results.

[0065] 2. Automatic calibration stage.

[0066] (1) Water pressure calibration preparation: 1) Prepare a signal line with scales: mark scales on the signal line for measuring water depth; 2) Install the weight: hang the weight block at the tail end of the elastic substrate to ensure that the strain gauge can stably and uniformly sink in the water.

[0067] (2) Water pressure calibration operation: 1) Prepare water depth measurement: select different water depth positions for water pressure measurement, and prepare equipment that can record water depth and corresponding water pressure; 2) Start automatic calibration function: start the built-in self-calibration module, input different water depths and corresponding water pressure data in the self-calibration module, automatically adjust the gain and offset of the processing module to ensure that its output is consistent with the actual water pressure; 3) Confirm the calibration state: after calibration, confirm the calibration state through the touch display module or warning module to ensure that the processing module has been accurately calibrated.

[0068] 3. Device installation phase.

[0069] (1) Strain gauge installation: 1) Prepare wedge-shaped elastic clamp: install a wedge-shaped elastic clamp on the elastic substrate, and the wedge-shaped elastic clamp is made of water-resistant and durable materials to ensure normal use in different environmental conditions; 2) Insert strain gauge: gently insert the elastic substrate with the wedge-shaped elastic clamp into the crack to ensure that the wedge-shaped elastic clamp can effectively hold the crack wall and avoid displacement of the strain gauge due to water flow or other factors; 3) Fix the strain gauge: confirm that the strain gauge has been firmly fixed in the crack, and the stability of the strain gauge can be checked by gently pulling the wire to ensure that it will not move during testing.

[0070] (2) Component connection: connect each line and module.

[0071] (3) Power connection: connect the external power supply, confirm that the power supply is working properly, and the device enters the test state.

[0072] 4. Test operation phase.

[0073] (1) Initial parameter setting: 1) Touch display module setting: set initial parameters through the touch display module, including measurement time interval and sampling frequency, etc.; 2) Confirm adaptive sampling frequency: set the minimum and maximum sampling frequency range according to the current environmental conditions to ensure dynamic adjustment of the sampling frequency during testing.

[0074] (2) Data acquisition start: 1) Start data acquisition: the device starts the automatic data acquisition function to measure the water pressure changes in the crack in real time; 2) Real-time data monitoring: monitor the current measurement data through the touch display module to ensure normal data collection.

[0075] (3) Automatic data recording and backup: 1) Record data: set the automatic data recording function to ensure that the measurement data is saved in real time; 2) Backup data: during testing, the system will automatically backup data to external storage devices (such as USB drives or the cloud) at regular intervals to ensure data security.

[0076] (4) Regular inspection of working state: 1) Monitor device state: Regularly check the working state of the device to ensure that there are no abnormal conditions; 2) Handle abnormal conditions: If the touch display module prompts an abnormality or the warning module issues a warning message, immediately check and eliminate the fault.

[0077] 5. Real-time monitoring phase.

[0078] (1) Remote monitoring: 1) Transmit real-time data: Through the integrated wireless communication module, real-time data collected is transmitted to the remote server, and users can access the data at any time through mobile phones or computers; 2) Remote monitoring interface: Ensure that users can view real-time data, set parameters, and receive warning notifications on remote devices.

[0079] (2) Data export and analysis: 1) Export data: After completing the test, export the measurement data through the touch display module or data interface and save it to a computer or other data processing device; 2) Analyze data: Use professional data analysis software to process the collected water pressure data and analyze the water pressure variation pattern; 3) Generate report: Write a test report including test environment description, device parameter settings, data analysis results, etc.

[0080] The thin slice fracture water pressure test device of the present embodiment has the following characteristics: (1) New material and structure design: Simplify device components and connection methods, improve stability and reliability; (2) Universal design: Design a universal fracture water pressure test device suitable for different forms and types of fractures, improving device applicability and flexibility; (3) Simplify operation process: Design a user-friendly operation interface and operation process, simplify device operation steps, reduce operation difficulty, and improve user experience.

[0081] At least the following advantages exist: (1) Reduce costs: Simplify design and manufacturing processes to reduce device manufacturing costs and make it more economical; (2) Improve efficiency: Optimize operation process and data collection efficiency, simplify operation steps, reduce test time, and improve test efficiency; (3) Strong universality: Design a universal device suitable for different types of fractures, improving device applicability and flexibility.

[0082] In addition, the present embodiment also illustrates a data calibration process in a self-calibration module.

[0083] Raw data:

[0084] 1. F = ma: Where F is force, unit N; m is mass, unit kg, a is acceleration, unit N / kg (take 9.8 N / kg).

[0085] Conversion: 1kg≈9.8N, 1g≈0.0098N.

[0086] 2, sigma=F / A: Wherein, sigma is pressure, unit Pa; F is force, unit N; A is area, unit m 2 .

[0087] Strain gauge pressure diameter is 1.27cm, 1g≈0.0007736MPa.

[0088] The measured data (before correction):

[0089] According to the above table, the function before correction is y=0.0062x-0.0255.

[0090] 3, error correction: According to 0m water depth pressure should be 0MPa, and 0.5m, 1.0m and 1.5m water depth pressure is 0.005MPa, 0.01MPa and 0.015MPa, the corrected function is: Sigma=(0.0007736m-0.0255) x 0.01 / 0.0062.

[0091] Wherein, sigma is the corrected pressure, unit MPa; m is the measured mass, unit g.

[0092] The measured data (after correction):

[0093] As can be seen from the above table, the error is very small, and the thin slice type crack water seepage pressure testing device of the embodiment can realize testing.

[0094] It should be noted that in the description of the present disclosure, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0095] Any process or method described in the flowchart or otherwise described herein can be understood as representing a module, a segment or a portion of code including one or more executable instructions for implementing specific logical functions or processes, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which the functions can be performed in an order other than that shown or discussed, including in a substantially simultaneous manner or in a reverse order according to the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0096] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0097] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary, and cannot be construed as limiting the present disclosure, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. A thin-film type fracture seepage pressure testing device, characterized in that, include: The detection module includes: an elastic substrate, a strain gauge, and a waterproof layer. The strain gauge is disposed on the elastic substrate, and the waterproof layer at least covers the strain gauge. The strain gauge is used to generate different deformations according to different water pressures in the crack when the detection module is arranged in the crack. The processing module has its signal input terminal connected to the signal output terminal of the strain gauge. The processing module is used to acquire the deformation of the strain gauge according to a preset sampling frequency range, obtain the water pressure of the crack based on the deformation of the strain gauge, and record the acquired water pressure along the time line.

2. The thin-film type fracture seepage pressure testing device according to claim 1, characterized in that, The device further includes: An adaptive sampling module is provided on the processing module, and the communication terminal of the adaptive sampling module is connected to the communication terminal of the processing module. The adaptive sampling module is used to adjust the sampling frequency of the processing module within a preset sampling frequency range according to the water pressure change obtained by the processing module. Specifically, when the change in water pressure is greater than a first preset range, the sampling frequency of the processing module is increased; and when the change in water pressure is less than a second preset range, the sampling frequency of the processing module is decreased. The second preset amplitude is smaller than the first preset amplitude.

3. The thin-film type fracture seepage pressure testing device according to claim 1, characterized in that, The device further includes: A self-calibration module is installed on the processing module, and the communication terminal of the self-calibration module is connected to the communication terminal of the processing module. The self-calibration module is used to correct the processing module based on the offset between the water pressure obtained by the processing module in the standard water pressure environment and the standard water pressure when the detection module is arranged in a standard water pressure environment, so as to make the water pressure obtained by the processing module in the standard water pressure environment consistent with the standard water pressure.

4. The thin-film type fracture seepage pressure testing device according to claim 3, characterized in that, The device further includes: A signal line is provided between the signal input terminal of the processing module and the signal output terminal of the strain gauge, and the signal output terminal of the signal line is connected to the signal input terminal of the processing module. The signal line is provided with a scale line, and the scale of the scale line increases along the direction from the strain gauge to the processing module.

5. The thin-film type fracture seepage pressure testing device according to claim 3, characterized in that, The elastic substrate is provided with hanging holes, which are used to hang gravity blocks when the detection module is arranged in a standard water pressure environment.

6. The thin-film type fracture seepage pressure testing device according to claim 1, characterized in that, The detection module also includes: A wedge-shaped elastic clip is disposed on the elastic substrate, and the thickness of the wedge-shaped elastic clip increases linearly from the inside to the outside of the crack.

7. The thin-film type fracture seepage pressure testing device according to claim 1, characterized in that, The device further includes: An alert module is provided on the processing module, and the signal input terminal of the alert module is connected to the signal output terminal of the processing module. The alert module is used to issue corresponding alert information according to the operating status of the processing module.

8. The thin-film type fracture seepage pressure testing device according to claim 1, characterized in that, The device further includes: A touch display module is disposed on the processing module, and the communication terminal of the touch display module is connected to the communication terminal of the processing module. The touch display module is used to send a preset sampling frequency range to the processing module and to display the water pressure obtained by the processing module.

9. The thin-film type fracture seepage pressure testing device according to claim 1, characterized in that, The device further includes: A power module, wherein the power input terminal of the power module is connected to the power output terminal of an external power source, and the power output terminal of the power module is connected to the power input terminal of the processing module.

10. The thin-film type fracture seepage pressure testing device according to claim 1, characterized in that, The device further includes: A wireless communication module is provided on the processing module, and the signal input terminal of the wireless communication module is connected to the signal output terminal of the processing module. The signal output terminal of the wireless communication module is wirelessly connected to the signal input terminal of a remote server. The processing module is used to send the acquired water pressure to the remote server through the wireless communication module.

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