A method for modifying a dynamic sounding test and a sounding penetration assembly

Abstract

The application discloses a correction method of a dynamic sounding test and a sounding penetration assembly. The method is applied to the sounding penetration assembly. When the sounding penetration assembly performs the dynamic sounding test, an effective energy value of the sounding penetration assembly is acquired. According to the effective energy value and a preset reference energy ratio, a correction coefficient of the dynamic sounding test is determined. The reference energy ratio is determined based on the size of the sounding penetration assembly. Therefore, the dynamic sounding test can be corrected based on the correction coefficient, the execution result of the dynamic sounding test is obtained, the accuracy of the execution result is improved, the accuracy of the recorded penetration times is improved, and the soil body characteristics are evaluated through the corrected execution result, so that the accuracy of the evaluation of the soil body characteristics is improved.

Description

Technical Field

[0001] This invention relates to the field of geological exploration technology, and in particular to a correction method for dynamic penetration tests and a penetration test assembly. Background Technology

[0002] Dynamic penetration test is a method that uses a specified hammer to drive a penetration tester into the soil layer with constant kinetic energy from a fixed free fall distance. The penetration continues until the penetration tester reaches a set depth in the soil layer, and the number of penetrations is recorded to evaluate the soil properties based on the number of penetrations.

[0003] Currently, because the penetration test element has a certain weight, and the deeper the penetration depth, the heavier the penetration test element becomes, the weight of the penetration test element will affect the energy transfer efficiency of each penetration, resulting in differences in the energy of effective work done each time. This leads to inaccurate recording of the number of penetrations and results in a problem of low accuracy in assessing soil properties. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a correction method for dynamic penetration testing, a penetration component, a data processing device, and an electronic device.

[0005] In a first aspect, embodiments of the present invention provide a method for correcting a dynamic penetration test, the method being applied to a penetration test assembly, the method comprising: When the penetrating probe performs a dynamic penetrating test, the effective energy value of the penetrating probe is obtained; The correction coefficient for the dynamic penetration test is determined based on the effective energy value and the preset reference energy ratio; wherein the reference energy ratio is determined based on the size of the penetration component. The dynamic penetration test is corrected based on the correction coefficient to obtain the execution result of the dynamic penetration test.

[0006] In one possible implementation of the first aspect above, before obtaining the effective energy value of the probe penetration component, the method further includes: When the test type of the dynamic penetration test is the target test type, the penetration component is used to perform a pre-penetration operation at the target location; During the pre-penetration operation performed by the probe penetrator, penetration data of the probe penetrator is acquired; wherein, the penetration data includes single penetration depth and single penetration strain. When the soil layer penetrated by the penetrating penetration device is determined to be the target test soil layer based on the penetration data, the step of obtaining the effective energy value of the penetrating penetration device is performed.

[0007] In one possible implementation of the first aspect above, obtaining the effective energy value of the penetrating component when the penetrating component performs a dynamic penetrating test includes: When the penetrating probe performs a dynamic penetrating test, the cumulative data of the penetrating probe is acquired; wherein, the cumulative data includes the cumulative penetration depth and the cumulative number of penetrations; When the cumulative penetration depth is greater than or equal to a preset depth threshold, or when the cumulative number of penetrations is greater than a preset number of penetrations threshold, the effective energy value of each penetration by the penetrating component during the execution of the dynamic penetration test is determined.

[0008] In one possible implementation of the first aspect above, determining the correction coefficient for the dynamic penetration test based on the effective energy value and a preset reference energy ratio includes: Based on the effective energy value of each penetration by the penetrating probe assembly, the average effective energy value of the penetrating probe assembly performing the dynamic penetrating test is determined; The correction coefficient for the dynamic penetration test is determined based on the average effective energy and the preset baseline energy ratio.

[0009] In one possible implementation of the first aspect above, determining the correction coefficient for the dynamic penetration test based on the effective energy value and a preset reference energy ratio includes: The correction coefficient for each penetration is determined based on the effective energy value of each penetration by the probe and the preset reference energy ratio. The execution result includes the number of penetrations in the dynamic penetration test. The process of correcting the dynamic penetration test based on the correction coefficient to obtain the execution result includes: The number of penetrations in the dynamic penetration test is corrected based on the correction factor for each penetration, resulting in the corrected number of penetrations, which is then used to evaluate soil properties.

[0010] Secondly, embodiments of the present invention provide a penetration test assembly, the penetration test assembly including a drill pipe, a drill pipe joint, and a penetration probe; The drill pipe is used to receive the impact load of the drill hammer, so as to transfer the impact load of the drill hammer to the penetration probe; the top of the drill pipe joint is connected to the bottom of the drill pipe, the bottom of the drill pipe joint is connected to the top of the penetration probe, and the drill pipe joint integrates sensors and data processing devices; the penetration probe is used to receive the impact load transmitted by the drill pipe and penetrate into the soil layer under the action of the impact load; The sensors include a strain sensor and an acceleration sensor. The strain sensor is used to acquire strain data of the penetration probe in the soil layer, and the acceleration sensor is used to acquire real-time acceleration data of the penetration component. The data processing device is used to determine the correction coefficient of the dynamic penetration test based on the strain data and the acceleration data, and to correct the dynamic penetration test based on the correction coefficient to obtain the execution result of the dynamic penetration test. The correction coefficient is determined based on the effective energy value of the penetration component and a preset reference energy ratio.

[0011] In one possible implementation of the second aspect above, the penetration test component further includes a data transmission module, which is used to transmit the execution results of the dynamic penetration test to the evaluation device for evaluating soil properties based on the evaluation device.

[0012] In one possible implementation of the second aspect above, the probe is either a powered probe or a standard penetrometer.

[0013] Thirdly, embodiments of the present invention provide a data processing apparatus, the apparatus being applied to a probe penetrating assembly, the apparatus comprising: The acquisition module is used to acquire the effective energy value of the penetrating component when the penetrating component performs a dynamic penetrating test; The determination module is used to determine the correction coefficient of the dynamic penetration test based on the effective energy value and the preset reference energy ratio; wherein the reference energy ratio is determined based on the size of the penetration component; The correction module is used to correct the dynamic penetration test based on the correction coefficient to obtain the execution result of the dynamic penetration test.

[0014] Fourthly, embodiments of the present invention provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the correction method for the dynamic penetration test as described above.

[0015] Fifthly, embodiments of the present invention provide a computer program product, the computer program product storing a computer program, which, when executed by a processor, implements the correction method for the dynamic penetration test as described above.

[0016] This invention is achieved through the following technical solution: This invention discloses a correction method for dynamic penetration testing and a penetration testing assembly. The method is applied to the penetration testing assembly. When the penetration testing assembly performs a dynamic penetration test, the effective energy value of the penetration testing assembly is obtained. Based on the effective energy value and a preset reference energy ratio, a correction coefficient for the dynamic penetration test is determined. The reference energy ratio is determined based on the size of the penetration testing assembly. Thus, the dynamic penetration test can be corrected based on the correction coefficient to obtain the execution result of the dynamic penetration test, thereby improving the accuracy of the execution result and the accuracy of the recorded number of penetrations. Furthermore, the soil properties are evaluated through the corrected execution result, improving the accuracy of the soil property evaluation. Attached Figure Description

[0017] Figure 1 This is a flowchart of the steps of a correction method for a dynamic penetration test provided in an embodiment of the present invention; Figure 2 This is a flowchart of the steps of a modified method for a dynamic penetration test provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a probe penetration component provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of a drill pipe joint provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a data processing device provided in an embodiment of the present invention; Figure 6 This is a structural block diagram of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0018] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, "a plurality of sets" means two or more sets, "a plurality of pieces" means two or more pieces, and "a number" means one or more, unless otherwise explicitly specified.

[0022] Dynamic penetration test is a method that uses a specified hammer to drive a penetration tester into the soil layer with constant kinetic energy from a fixed free fall distance. The penetration continues until the penetration tester reaches a set depth in the soil layer, and the number of penetrations is recorded to evaluate the soil properties based on the number of penetrations.

[0023] Dynamic penetration tests include standard penetration tests (SPT), heavy dynamic penetration tests (HPT), and light dynamic penetration tests (LTPT). The SPT involves dropping a 63.5 kg hammer from a height of 76 cm into the soil layer, driving a standard penetrator with a small sample tube into the soil, and recording the total number of hammer blows to the standard penetrator when the penetration depth reaches 30 cm. Soil properties are evaluated based on this total number of blows. The HPT involves dropping a 63.5 kg hammer from a height of 76 cm into the soil layer, and recording the total number of hammer blows to the probe when the penetration depth reaches 10 cm. The LTPT involves dropping a 10 kg hammer from a height of 50 cm into the soil layer, and recording the total number of hammer blows to the probe when the penetration depth reaches 30 cm.

[0024] Typically, dynamic penetration tests involve drilling holes at varying depths in the ground to insert a penetration probe into these holes. This allows for penetration into soil layers at different depths, enabling the determination of soil properties at different depths. The penetration probe usually consists of a probe rod and a probe head. The length of the probe rod is related to the depth of penetration; the deeper the soil layer to be penetrated, the longer the probe rod needs to be.

[0025] Because there is friction between the probe rod and the soil on the inner side of the borehole, the longer the probe rod is, the larger the contact area between the probe rod and the soil on the inner side of the borehole will be, thereby increasing the friction between the probe rod and the soil on the inner side of the borehole, and thus less kinetic energy will be transmitted from the core hammer to the probe probe through the probe rod.

[0026] Meanwhile, since the probe rod has a certain weight, and the longer the probe rod is, the heavier it is, the heavier the probe rod will be, and the less kinetic energy the hammer will transfer to the probe probe through the probe rod.

[0027] As can be seen from the above, the deeper the soil layer whose properties need to be determined by the dynamic penetration test, the less kinetic energy is transmitted from the core hammer to the penetration probe through the penetration rod. The less kinetic energy transmitted, the shallower the penetration depth of the penetration probe in a single penetration test. Consequently, the number of hammer blows required to penetrate to the preset depth increases. That is, under the influence of friction and self-weight, the number of hammer blows required for a core hammer of specified specifications to penetrate to the preset depth at a fixed height is more than the number of hammer blows required if the influence of friction and self-weight is ignored. This results in the problem of inaccurate recorded penetration counts. Furthermore, evaluating the soil properties based on a less accurate number of penetrations also suffers from low accuracy.

[0028] Based on this, the present invention discloses a correction method for dynamic penetration testing and a penetration testing assembly. The method is applied to the penetration testing assembly. When the penetration testing assembly performs a dynamic penetration test, the effective energy value of the penetration testing assembly is obtained. Based on the effective energy value and a preset reference energy ratio, a correction coefficient for the dynamic penetration test is determined. The reference energy ratio is determined based on the size of the penetration testing assembly. Thus, the dynamic penetration test can be corrected based on the correction coefficient to obtain the execution result of the dynamic penetration test, thereby improving the accuracy of the execution result and increasing the accuracy of the recorded number of penetrations. Furthermore, the soil properties are evaluated through the corrected execution result, improving the accuracy of the soil property evaluation.

[0029] See Figure 1 , Figure 1 The diagram illustrates a step-by-step flowchart of a correction method for a dynamic penetration test according to an embodiment of the present invention. This method is applied to a penetration test assembly and specifically includes the following steps: S101, when the penetrating probe performs a dynamic penetrating test, obtain the effective energy value of the penetrating probe.

[0030] The penetrating test assembly can be a component used to penetrate the soil layer during a dynamic penetrating test. The effective energy value can be the energy value used to penetrate the soil layer using the penetrating probe in the penetrating test assembly.

[0031] When it is necessary to evaluate the soil properties of a soil layer at any depth at any location, a hole of a predetermined depth can be drilled in the ground at that location, a penetrating probe can be placed in the hole, and a drop hammer system can be applied to the ground.

[0032] Specifically, the drop hammer system includes a hammer that hangs above the penetrator assembly. The system also includes a lifting module to raise the hammer, allowing it to re-hover above the penetrator assembly after striking it. Finally, the system includes a limiter to restrict the height the hammer rises, ensuring it hovers at a preset height above the penetrator assembly.

[0033] After placing the penetrometer into the borehole, the mandrel can be raised to a preset height above the penetrometer using the lifting module, and then released to allow it to fall freely and strike the penetrometer, thus causing it to penetrate the soil layer. The mandrel can then be raised back to the preset height above the penetrometer using the lifting module, and the above steps can be repeated until the penetrometer penetrates the soil layer to the preset depth, and the number of hammer blows required to penetrate to the preset depth is recorded.

[0034] When the penetrator is subjected to a dynamic penetrator test, that is, when the penetrator is impacted by the hammer each time, the effective energy value of the penetrator is obtained.

[0035] It's important to understand that the hammer transfers its kinetic energy from its free fall to the penetrator through impact. In other words, the penetrator is impacted by the hammer and receives the impact load, causing it to penetrate the soil layer. However, due to friction and deformation during penetration, not all the kinetic energy transferred to the penetrator is used to penetrate the soil; some energy is wasted. Therefore, the energy required for the probe within the penetrator to penetrate the soil layer can be determined as the effective energy value.

[0036] In practical applications, the penetrating probe assembly integrates strain sensors and acceleration sensors. This allows the strain sensor to acquire strain data of the probe penetrating the soil layer each time the penetrating probe assembly is inserted into the soil layer, and the acceleration sensor to acquire real-time acceleration data of the penetrating probe assembly. Based on the acquired strain and acceleration data, the effective energy value of the probe penetrating probe in the penetrating probe assembly can be determined.

[0037] In one embodiment of the present invention, the following steps may be included before step S101: When the test type of the dynamic penetration test is the target test type, the penetration test component is used to perform a pre-penetration operation at the target location. During the pre-penetration operation of the penetration test component, the penetration data of the penetration test component is acquired. When the soil layer penetrated by the penetration test component is determined to be the target test soil layer based on the penetration data, step S101 is executed.

[0038] The test type can be any type of dynamic penetration test, and different test types are suitable for evaluating soil properties in different geological conditions. Test types include standard penetration test (SPT), heavy dynamic penetration test (HPT), and light dynamic penetration test (HPT). Soil properties can be data describing the physical state and mechanical properties of the soil, specifically including physical indices such as density and consistency, and mechanical parameters such as bearing capacity, deformation modulus, and internal friction angle, which can be used to evaluate the stability and bearing capacity of soil foundations and pile foundations. The target test type can be a standard penetration test. Pre-penetration operation can be an operation of pre-penetrating the soil layer. Penetration data can be data related to the penetration of the penetrator into the soil layer, including single penetration depth and single penetration strain. Single penetration depth can be the current depth to which the penetrator is penetrated into the soil layer. Single penetration strain can be the strain data of the penetrator being penetrated into the soil layer. The target test soil layer can be a non-loose, undisturbed soil layer.

[0039] In practical applications, when the dynamic penetration test to be performed is of the standard penetration test type, that is, when the dynamic penetration test to be performed is a standard penetration test, a penetration test component can be used to pre-penetrate at the target location, that is, to perform a pre-penetration operation.

[0040] During the pre-penetration operation, the penetration data of the penetrating penetrator can be acquired in real time, obtaining the current penetration depth and strain data of the penetrating penetrator into the soil layer, that is, the single penetration depth and single penetration strain of the penetrating penetrator into the soil layer at the current moment. After obtaining the single penetration depth and single penetration strain at the current moment, it can be determined whether the soil layer penetrated by the penetrating penetrator at the current moment is the target test soil layer. If it is determined to be the target test soil layer, step S101 is executed; otherwise, the operation of penetrating penetrator into the soil layer continues until any penetrating soil layer is the target test soil layer, or the cumulative depth of the pre-penetration operation exceeds the depth threshold.

[0041] In specific implementation, when the single penetration depth of the penetrating probe into the soil layer is less than the preset single penetration depth threshold and the single penetration strain is greater than the preset single penetration strain threshold, the soil layer currently penetrated is determined to be the target test soil layer. When the single penetration depth of the penetrating probe into the soil layer is greater than or equal to the single penetration depth threshold, or the single penetration strain is less than or equal to the single penetration strain threshold, the soil layer currently penetrated is determined to be a non-target test soil layer.

[0042] S102, determine the correction factor for the dynamic penetration test based on the effective energy value and the preset reference energy ratio.

[0043] The baseline energy ratio is determined based on the dimensions of the penetration test assembly. Correction factors can be used to adjust the results of the dynamic penetration test. The results can describe the outcome of the dynamic penetration test, i.e., the results used to represent soil properties after the test.

[0044] After obtaining the effective energy value, the ratio between the initial energy value and the effective energy value can be determined to obtain the actual energy ratio. Based on the size of the penetration component, the corresponding reference energy ratio can be determined. Then, the ratio between the actual energy ratio and the reference energy ratio can be determined, which is the correction coefficient for the dynamic penetration test.

[0045] Specifically, the initial energy value can be the energy value converted from the free fall distance of the hammer during the dynamic penetration test, that is, the theoretical energy value of the hammer acting on the penetration component.

[0046] In practical applications, some of the energy is converted into internal energy when the hammer strikes the penetrating probe component, resulting in energy loss when the hammer applies energy to the penetrating probe component. The energy loss varies for penetrating probe components of different sizes. Therefore, the ratio between the energy loss of penetrating probe components of different sizes and the theoretical energy value can be determined in advance to obtain the reference energy ratio corresponding to penetrating probe components of different sizes.

[0047] It's important to understand that dynamic penetration tests record the number of times the penetrator (PT) is struck by a center hammer when it reaches a preset depth. This allows for the recording of the number of penetrations and the assessment of soil properties at that preset depth based on this recorded number of strikes. However, the number of strikes is determined by striking the PT with a constant energy level. Even considering energy loss due to impact, the friction between the PT and the soil means that less energy is actually used to penetrate the soil. Therefore, more strikes are needed to reach the preset depth. In other words, the accuracy of the recorded number of strikes is lower due to the friction between the PT and the soil.

[0048] Based on this, by determining the ratio between the actual energy ratio and the reference energy ratio, it is possible to determine the ratio between the energy actually transmitted to the penetration probe for penetration and the constant energy of the penetration assembly struck by the hammer. In this way, it is possible to determine the ratio between the recorded number of penetrations and the correct number of penetrations, and obtain the correction coefficient used to correct the recorded number of penetrations.

[0049] S103, the dynamic penetration test is corrected based on the correction factor to obtain the execution result of the dynamic penetration test.

[0050] The execution result may include the number of penetrations required to penetrate the probe component to a preset depth.

[0051] After obtaining the correction factor, the dynamic penetration test can be corrected based on the correction factor, that is, the number of penetrations recorded during the dynamic penetration test can be corrected to obtain the corrected number of penetrations, which is the result of the dynamic penetration test.

[0052] As an example, the execution results may also include data such as the average displacement and impact acceleration amplitude of each penetration of the penetrating component. Correcting the dynamic penetrating test based on the correction coefficient may also include data after correction of the average displacement, impact acceleration amplitude, and other data.

[0053] In this embodiment of the invention, the method is applied to a penetrometer. When the penetrometer performs a dynamic penetration test, the effective energy value of the penetrometer is obtained. Based on the effective energy value and a preset reference energy ratio, a correction coefficient for the dynamic penetration test is determined. The reference energy ratio is determined based on the size of the penetrometer. Thus, the dynamic penetration test can be corrected based on the correction coefficient to obtain the execution result of the dynamic penetration test, thereby improving the accuracy of the execution result and increasing the accuracy of the recorded number of penetrations. Furthermore, the soil properties are evaluated through the corrected execution result, improving the accuracy of the soil property evaluation.

[0054] See Figure 2 , Figure 2 The following is a flowchart illustrating the steps of a modified method for dynamic penetrating tests according to an embodiment of the present invention. This method is applied to a penetrating component and may specifically include the following steps: S201, when the penetrating probe performs a dynamic penetrating test, acquire the cumulative data of the penetrating probe.

[0055] The cumulative data includes cumulative penetration depth and cumulative number of penetrations. Cumulative penetration depth represents the cumulative depth to which the penetration test module has penetrated the soil layer at the current moment. Cumulative penetration depth also represents the cumulative number of times the penetration test module has been struck by the center hammer at the current moment.

[0056] When a penetrating penetration test (PTP) module performs a dynamic penetration test, the penetration data of the probe into the soil layer at the current moment can be obtained through strain sensors and acceleration sensors within the PTP module. Based on the strain and acceleration data in the penetration data, the penetration depth of the PTP module into the soil layer at the current moment can be calculated, as well as the penetration depth of each previous penetration before the current moment, thus determining the cumulative penetration depth at the current moment. Simultaneously, the number of times the core hammer acts on the PTP module can be determined by the trend of strain data changes, obtaining the cumulative number of penetrations at the current moment.

[0057] S202, when the cumulative penetration depth is greater than or equal to a preset depth threshold, or the cumulative number of penetrations is greater than a preset number of penetrations threshold, determine the effective energy value of each penetration of the penetration component during the dynamic penetration test.

[0058] The depth threshold and the number of times threshold can be user-defined values ​​or values ​​determined based on experience.

[0059] After obtaining the cumulative penetration depth and cumulative number of penetrations, the cumulative penetration depth can be compared with a preset depth threshold, and the cumulative number of penetrations can be compared with a preset number of penetrations threshold. If the cumulative penetration depth is greater than or equal to the preset depth threshold, or the cumulative number of penetrations is greater than the preset number of penetrations threshold, the conditions for ending the dynamic penetrating test are determined, and the operation of applying the center hammer to the penetrating component is terminated. Simultaneously, the effective energy value of each penetration by the penetrating component during the dynamic penetrating test can also be determined.

[0060] S203, determine the correction factor for the dynamic penetration test based on the effective energy value and the preset reference energy ratio.

[0061] In one embodiment of the present invention, step S203 may include the following steps: Based on the effective energy value of each penetration by the penetrator, the average effective energy of the penetrator for performing a dynamic penetration test is determined. Based on the average effective energy and the preset baseline energy ratio, the correction coefficient for the dynamic penetration test is determined.

[0062] Among them, the mean effective energy can be the mean of the effective energy values.

[0063] After obtaining the effective energy value of each penetration of the penetrating component during the dynamic penetration test, the average effective energy value can be determined based on the effective energy value of each penetration, and the ratio between the initial energy value and the average effective energy value can be determined to obtain the actual energy ratio. Then, the ratio between the actual energy ratio and the reference energy ratio can be determined, which is the correction coefficient of the dynamic penetration test.

[0064] In another embodiment of the present invention, step S203 may further include the following steps: The correction factor for each penetration is determined based on the effective energy value of the penetrator component and the preset reference energy ratio.

[0065] After obtaining the effective energy value of each penetration of the penetrating component during the dynamic penetration test, the ratio between the initial energy value and the effective energy value can be determined for each penetration, thus obtaining the actual energy ratio of this penetration. Furthermore, the ratio between the actual energy ratio of this penetration and the reference energy ratio can be determined, thus obtaining the correction coefficient for this penetration. In this way, the correction coefficient for each penetration can be obtained.

[0066] S204, based on the correction factor, corrects the dynamic penetration test to obtain the execution result of the dynamic penetration test.

[0067] After obtaining the correction coefficient, the dynamic penetration test can be corrected based on the correction coefficient to obtain the execution result of the dynamic penetration test.

[0068] In one embodiment of the present invention, the execution result may include the number of penetrations in the dynamic penetration test, and step S204 may include the following steps: The number of penetrations in a dynamic penetration test is corrected based on a correction factor for each penetration, resulting in a corrected number of penetrations for the dynamic penetration test. This corrected number of penetrations is then used to assess soil properties.

[0069] In practical applications, when the correction factor includes the correction factor for each penetration, the number of penetrations recorded in the dynamic penetration test can be weighted based on the correction factor for each penetration to obtain the corrected number of penetrations.

[0070] In this embodiment of the invention, the method is applied to a penetrometer. When the penetrometer performs a dynamic penetration test, the cumulative data of the penetrometer is acquired. When the cumulative penetration depth is greater than or equal to a preset depth threshold, or the cumulative number of penetrations is greater than a preset number of penetrations threshold, the effective energy value of each penetration by the penetrometer during the dynamic penetration test is determined. Based on the effective energy value and a preset baseline energy ratio, a correction coefficient for the dynamic penetration test is determined. The baseline energy ratio is determined based on the size of the penetrometer, thereby enabling the dynamic penetration test to be corrected based on the correction coefficient, thus obtaining the execution result of the dynamic penetration test, improving the accuracy of the execution result, increasing the accuracy of the recorded number of penetrations, and evaluating soil properties through the corrected execution result, thereby improving the accuracy of soil property evaluation.

[0071] See Figure 3 , Figure 3 A schematic diagram of a probe penetration assembly according to an embodiment of the present invention is shown, as follows: Figure 3 As shown, the penetration test assembly 1 includes a drill pipe 11, a drill pipe joint 12, and a penetration probe 13.

[0072] The drill pipe 11 is used to receive the impact load of the through hammer in order to transfer the impact load of the through hammer to the penetration probe 13.

[0073] The top of the drill pipe joint 12 is connected to the bottom of the drill pipe 11, and the bottom of the drill pipe joint 12 is connected to the top of the probe 13. The drill pipe joint 12 integrates sensors and data processing devices.

[0074] Specifically, the drill pipe joint 12 has internal threaded holes at both its top and bottom. The top of the penetration probe 13 has an external threaded connecting section, which engages and locks with the internal threaded hole at the bottom of the drill pipe joint 12, thus achieving a tight connection between the penetration probe 13 and the drill pipe joint 12. The bottom of the drill pipe 11 has an external threaded connecting section, which engages and locks with the internal threaded hole at the top of the drill pipe joint 12, thus achieving a tight connection between the drill pipe 11 and the drill pipe joint 12.

[0075] The penetration probe 13 is used to receive the impact load transmitted by the drill rod 11 and penetrate into the soil layer under the action of the impact load.

[0076] The sensors include strain sensors and acceleration sensors. The strain sensors are used to acquire strain data of the penetration probe in the soil layer, and the acceleration sensors are used to acquire real-time acceleration data of the penetration component. The data processing device is used to determine the correction coefficient of the dynamic penetration test based on the strain data and acceleration data, and to correct the dynamic penetration test based on the correction coefficient to obtain the execution result of the dynamic penetration test. The correction coefficient is determined based on the effective energy value of the penetration component and the preset reference energy ratio.

[0077] In one embodiment of the present invention, the data processing device may implement the steps in any of the above method embodiments.

[0078] In one embodiment of the present invention, the penetration test assembly further includes a data transmission module, which is used to transmit the execution results of the dynamic penetration test to the evaluation device for evaluating the soil properties based on the evaluation device.

[0079] See Figure 4 , Figure 4 A schematic diagram of a drill pipe joint according to an embodiment of the present invention is shown, as follows: Figure 4As shown, the drill pipe joint 12 has internal threaded holes at both the top and bottom. The middle section of the drill pipe joint 12 integrates a strain sensor 121, an acceleration sensor 122, a data processing device 123, and a data transmission module 124. The strain sensor 121 and acceleration sensor 122 are both communicatively connected to the data processing device 123 to transmit the collected strain and acceleration data. The data processing device 123 is communicatively connected to the data transmission module 124 to transmit the corrected execution results. The data transmission module 124 is communicatively connected to the evaluation equipment to transmit the execution results of the dynamic penetration test to the evaluation equipment, enabling the evaluation equipment to assess soil properties based on the execution results of the dynamic penetration test.

[0080] Specifically, strain sensor 121, acceleration sensor 122, data processing device 123, and data transmission module 124 are all installed inside the drill pipe joint 12. Water-stop rubber rings are provided on the surface of strain sensor 121 and acceleration sensor 122 to reduce the inflow of external liquid into the drill pipe joint 12. The cover plate is then fixed to the surface of the water-stop rubber ring with bolts. At the same time, a movable and detachable cover plate is provided at the bottom of data processing device 123 and data transmission module 124.

[0081] In one embodiment of the present invention, the penetrometer is either a powered penetrometer or a standard penetrometer.

[0082] In this embodiment of the invention, when the penetrating penetration assembly performs a dynamic penetration test, the effective energy value of the penetrating penetration assembly can be obtained through the sensors in the penetrating penetration assembly. The data processing device in the penetrating penetration assembly determines the correction coefficient of the dynamic penetration test based on the effective energy value and a preset reference energy ratio. The reference energy ratio is determined based on the size of the penetrating penetration assembly. Thus, the dynamic penetration test can be corrected based on the correction coefficient to obtain the execution result of the dynamic penetration test, thereby improving the accuracy of the execution result and the accuracy of the recorded number of penetrations. Furthermore, the soil properties can be evaluated through the corrected execution result, thus improving the accuracy of the soil property evaluation.

[0083] See Figure 5 , Figure 5 This illustration shows a schematic diagram of a data processing apparatus according to an embodiment of the present application. The apparatus is applied to a probe penetrating component and may specifically include the following modules: The acquisition module 501 is used to acquire the effective energy value of the penetrating component when the penetrating component performs a dynamic penetrating test; The determination module 502 is used to determine the correction coefficient of the dynamic penetration test based on the effective energy value and the preset reference energy ratio; wherein the reference energy ratio is determined based on the size of the penetration component. The correction module 503 is used to correct the dynamic penetration test based on the correction coefficient to obtain the execution result of the dynamic penetration test.

[0084] In one implementation, the device further includes the following modules: The execution module is used to perform a pre-penetration operation at the target location using the penetrating component before obtaining the effective energy value of the penetrating component, when the test type of the dynamic penetrating test is the target test type; In one implementation, the acquisition module 501 is further used for: During the pre-penetration operation of the penetrating probe component, the penetration data of the penetrating probe component is acquired; the penetration data includes single penetration depth and single penetration strain. When determining the soil layer penetrated by the penetration component as the target test soil layer based on the penetration data, the step of obtaining the effective energy value of the penetration component is performed.

[0085] In one implementation, the acquisition module 501 is further used for: When the penetrator performs a dynamic penetration test, the cumulative data of the penetrator is acquired; the cumulative data includes the cumulative penetration depth and the cumulative number of penetrations. When the cumulative penetration depth is greater than or equal to a preset depth threshold, or the cumulative number of penetrations is greater than a preset number of penetrations threshold, the effective energy value of each penetration of the penetration component during the dynamic penetration test is determined.

[0086] In one implementation, the determining module 502 is further configured to: Based on the effective energy value of each penetration of the penetrator, determine the average effective energy of the penetrator during the dynamic penetration test; The correction factor for the dynamic penetration test is determined based on the mean effective energy and the preset baseline energy ratio.

[0087] In one implementation, the determining module 502 is further configured to: The correction coefficient for each penetration is determined based on the effective energy value of the penetrating component and the preset reference energy ratio. The execution results include the number of penetrations in the dynamic penetration test. The dynamic penetration test is corrected based on a correction factor to obtain the execution results, which include: The number of penetrations in a dynamic penetration test is corrected based on a correction factor for each penetration, resulting in a corrected number of penetrations for the dynamic penetration test. This corrected number of penetrations is then used to assess soil properties.

[0088] In this embodiment of the invention, the method is applied to a penetrometer. When the penetrometer performs a dynamic penetration test, the effective energy value of the penetrometer is obtained. Based on the effective energy value and a preset reference energy ratio, a correction coefficient for the dynamic penetration test is determined. The reference energy ratio is determined based on the size of the penetrometer. Thus, the dynamic penetration test can be corrected based on the correction coefficient to obtain the execution result of the dynamic penetration test, thereby improving the accuracy of the execution result and increasing the accuracy of the recorded number of penetrations. Furthermore, the soil properties are evaluated through the corrected execution result, improving the accuracy of the soil property evaluation.

[0089] It should be noted that the information interaction and execution process between the above-mentioned devices are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, which will not be repeated here.

[0090] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0091] See Figure 6 , Figure 6 This application provides a structural block diagram of an electronic device according to an embodiment of the present application, as shown below. Figure 6 As shown, this embodiment provides an electronic device 61, which includes at least one processor 611, a memory 612, and a computer program 6121 stored in the memory 612 and executable on at least one processor 611. When the processor 611 executes the computer program 6121, it implements the steps in any of the above-described method embodiments.

[0092] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can implement the steps in any of the above method embodiments.

[0093] This application provides a computer program product that, when run on a mobile terminal, enables the mobile terminal to implement the steps described in the various method embodiments.

[0094] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of this application can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying the computer program code to a photographing device / terminal device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium.

[0095] The above detailed description is a specific description of feasible embodiments of the present invention. These embodiments are not intended to limit the patent scope of the present invention. All equivalent implementations or modifications that do not depart from the present invention should be included in the patent scope of this case.

Claims

1. A correction method for a dynamic penetration test, characterized in that, The method is applied to a probe-penetrating component, and the method includes: When the penetrating probe performs a dynamic penetrating test, the effective energy value of the penetrating probe is obtained; The correction coefficient for the dynamic penetration test is determined based on the effective energy value and the preset reference energy ratio; wherein the reference energy ratio is determined based on the size of the penetration component. The dynamic penetration test is corrected based on the correction coefficient to obtain the execution result of the dynamic penetration test.

2. The correction method for the dynamic penetration test as described in claim 1, characterized in that, Before obtaining the effective energy value of the probe penetration component, the method further includes: When the test type of the dynamic penetration test is the target test type, the penetration component is used to perform a pre-penetration operation at the target location; During the pre-penetration operation performed by the probe penetrator, penetration data of the probe penetrator is acquired; wherein, the penetration data includes single penetration depth and single penetration strain. When the soil layer penetrated by the penetrating penetration device is determined to be the target test soil layer based on the penetration data, the step of obtaining the effective energy value of the penetrating penetration device is performed.

3. The correction method for the dynamic penetration test as described in claim 1, characterized in that, When the penetrating probe performs a dynamic penetrating test, obtaining the effective energy value of the penetrating probe includes: When the penetrating probe performs a dynamic penetrating test, the cumulative data of the penetrating probe is acquired; wherein, the cumulative data includes the cumulative penetration depth and the cumulative number of penetrations; When the cumulative penetration depth is greater than or equal to a preset depth threshold, or when the cumulative number of penetrations is greater than a preset number of penetrations threshold, the effective energy value of each penetration by the penetrating component during the execution of the dynamic penetration test is determined.

4. The correction method for the dynamic penetration test as described in claim 3, characterized in that, The step of determining the correction coefficient for the dynamic penetration test based on the effective energy value and a preset reference energy ratio includes: Based on the effective energy value of each penetration by the penetrating probe assembly, the average effective energy value of the penetrating probe assembly performing the dynamic penetrating test is determined; The correction coefficient for the dynamic penetration test is determined based on the average effective energy and the preset baseline energy ratio.

5. The correction method for the dynamic penetration test as described in claim 3, characterized in that, The step of determining the correction coefficient for the dynamic penetration test based on the effective energy value and a preset reference energy ratio includes: The correction coefficient for each penetration is determined based on the effective energy value of each penetration by the probe and the preset reference energy ratio. The execution result includes the number of penetrations in the dynamic penetration test. The process of correcting the dynamic penetration test based on the correction coefficient to obtain the execution result includes: The number of penetrations in the dynamic penetration test is corrected based on the correction factor for each penetration, resulting in the corrected number of penetrations, which is then used to evaluate soil properties.

6. A probe-penetrating assembly, characterized in that, The penetration test assembly includes a drill pipe, a drill pipe joint, and a penetration probe. The drill pipe is used to receive the impact load of the through hammer, so as to transfer the impact load of the through hammer to the probe; the top of the drill pipe joint is connected to the bottom of the drill pipe, the bottom of the drill pipe joint is connected to the top of the probe, and the drill pipe joint integrates sensors and data processing devices. The penetration probe is used to receive the impact load transmitted by the drill rod and penetrate into the soil layer under the action of the impact load; The sensors include a strain sensor and an acceleration sensor. The strain sensor is used to acquire strain data of the penetration probe in the soil layer, and the acceleration sensor is used to acquire real-time acceleration data of the penetration component. The data processing device is used to determine the correction coefficient of the dynamic penetration test based on the strain data and the acceleration data, and to correct the dynamic penetration test based on the correction coefficient to obtain the execution result of the dynamic penetration test. The correction factor is determined based on the effective energy value of the penetrating component and a preset reference energy ratio.

7. The probe penetration assembly as claimed in claim 6, characterized in that, The penetration test assembly also includes a data transmission module, which is used to transmit the execution results of the dynamic penetration test to the evaluation device for evaluating soil properties based on the evaluation device.

8. The probe penetration assembly as claimed in claim 6, characterized in that, The penetrometer can be either a powered penetrometer or a standard penetrometer.

9. A data processing apparatus, characterized in that, The device is used in a probe-penetrating assembly, and the device includes: The acquisition module is used to acquire the effective energy value of the penetrating component when the penetrating component performs a dynamic penetrating test; The determination module is used to determine the correction coefficient of the dynamic penetration test based on the effective energy value and the preset reference energy ratio; wherein the reference energy ratio is determined based on the size of the penetration component; The correction module is used to correct the dynamic penetration test based on the correction coefficient to obtain the execution result of the dynamic penetration test.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the modified method for the dynamic penetration test as described in any one of claims 1 to 5.

Images