High-strain-method foundation pile detection automatic drop hammer excitation equipment convenient to combine and install

Abstract

The invention provides high-strain-method foundation pile detection automatic drop hammer excitation equipment convenient to combine and install, and belongs to the technical field of land detection. The method specifically comprises the steps that hammer center deviation data of drop hammers of similar historical foundation piles under different excitation forces are determined according to the analysis result of historical excitation data of the drop hammers of the similar historical foundation piles, and the hammer center deviation data of the drop hammers of the similar historical foundation piles are obtained; determining reliable excitation force in the excitation force based on the hammer center deviation data, acquiring displacement change data of the foundation pile under different hammer times in the detection process under different reliable excitation forces, and determining optimal excitation force in the reliable excitation force in combination with historical detection data under different displacement change amounts; according to the method, the excitation processing of the drop hammer is carried out based on the preferable excitation force, and whether the automatic adjustment processing of the excitation equipment of the drop hammer needs to be carried out or not is determined according to the change condition of the excitation data under different adjacent hammering times, so that the accuracy of the foundation pile detection result of the high-strain method is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of land detection, and in particular relates to an automatic drop-hammer excitation device for pile detection using a high-strain method that is easy to assemble and install. Background Art

[0002] The high-strain dynamic testing pile test is a dynamic testing method that uses a heavy hammer to impact the top of the pile. The impact pulse propagates downward along the pile body to cause sufficient relative displacement between the pile and the soil, thereby stimulating the soil resistance around the pile and the supporting force of the pile end. Specifically, in the invention patent application CN202410846084.4 "A crawler-type high-strain hammering robot and method", a crawler-type high-strain hammering robot and method are used to realize the intelligentization of high-strain pile foundation integrity detection, effectively reducing labor intensity, improving work efficiency, and improving the accuracy of detection, but the following technical problems are ignored: When using the high strain measurement method for testing, there will inevitably be a certain deviation in the eccentricity of the weight at the top of the pile. Therefore, if the vibration equipment cannot be adjusted according to the test data of the high strain measurement method, the accuracy of the test results cannot be guaranteed.

[0003] In view of the above technical problems, the present invention proposes an automatic drop-hammer vibration excitation device for high-strain pile detection that is easy to assemble and install. Summary of the invention

[0004] To achieve the purpose of the present invention, the present invention adopts the following technical solutions: In order to solve the above technical problems, the present invention provides the following technical solutions to achieve the purpose of the present invention: According to one aspect of the present invention, there is provided an automatic drop-hammer vibration excitation device for pile foundation testing using a high-strain method that is easy to assemble and install.

[0005] An automatic drop-hammer vibration excitation device for high-strain pile foundation detection that is easy to assemble and install, including a vibration processing module, a data processing module, and a convenient disassembly module, which is applied to an automatic drop-hammer vibration excitation method, specifically including: S1 performs a drop hammer excitation process according to a preset excitation force, determines the similarity between the test data and the historical test data based on the analysis result of the test data of the pile foundation using the high strain method, and determines similar historical pile foundations corresponding to the historical test data using the similarity; S2: determining hammer center deviation data of the similar historical pile foundation under different exciting forces based on the analysis results of the historical exciting data of the drop hammer of the similar historical pile foundation, and determining the reliable exciting force among the exciting forces based on the hammer center deviation data; S3: obtaining displacement change data of the piles under different reliable exciting forces at different hammering times during the detection process, and determining the preferred exciting force among the reliable exciting forces in combination with historical detection data under different displacement change amounts; S4 performs the vibration processing of the drop hammer based on the preferred exciting force, and determines whether automatic adjustment processing of the vibration equipment of the drop hammer is required according to the change of the vibration data under different adjacent hammer strike times.

[0006] The beneficial effects of the present invention are: The reliable exciting force among the exciting forces is determined based on the hammer center deviation data, thereby realizing the determination of the reliable exciting force from the perspective of the hammer center deviation during the excitation process, avoiding the technical problem of low accuracy of the pile foundation detection results of the high strain method due to the frequent occurrence of hammer center deviation under the exciting force, improving the reliability of the excitation processing, and laying the foundation for further realizing the determination of the preferred exciting force among the reliable exciting forces.

[0007] According to the changes in the vibration data under different adjacent hammer blows, it is determined whether automatic adjustment processing of the drop hammer vibration equipment is needed, thereby improving the accuracy of the pile foundation inspection results of the high strain method. By analyzing the changes in the vibration data under adjacent hammer blows, real-time detection of the deviation of the hammer center during the vibration process is achieved, and automatic adjustment of the vibration equipment is also achieved. On the basis of ensuring the efficiency of the vibration processing, the accuracy and reliability of the pile foundation inspection results of the high strain method are improved.

[0008] A further technical solution is that the vibration processing module is responsible for performing the vibration processing of the drop hammer.

[0009] A further technical solution is that the data processing module is responsible for adjusting and analyzing the exciting force of the drop hammer.

[0010] A further technical solution is that the convenient disassembly module is responsible for assembling the excitation processing module, the data processing module and the drop hammer excitation device.

[0011] A further technical solution is that the preset exciting force is determined according to a preset trial exciting force of the exciting device.

[0012] A further technical solution is that the similarity between the detection data and the historical detection data includes the historical detection piles corresponding to different historical detection data and the feature similarity between different historical detection data and the detection features of the detection data.

[0013] A further technical solution is that the detection characteristics include amplitude distribution characteristics and frequency characteristics.

[0014] A further technical solution is to determine whether automatic adjustment of the vibration excitation device of the drop hammer is required, specifically: Determine the variation of the characteristic similarity amount of the detection characteristic of the vibration data under different adjacent hammering numbers according to the variation of the vibration data under different adjacent hammering numbers; The number of changes in the detection feature is determined by the change in the feature similarity amount of the detection feature of the excitation data under different adjacent hammering times; The abnormal excitation coefficient of the drop hammer is determined based on the proportion of the number of detection feature changes in the number of hammer strikes, and the abnormal excitation coefficient is used to determine whether automatic adjustment processing of the drop hammer's excitation equipment is required.

[0015] A further technical solution is that, when the abnormal coefficient of the excitation of the drop hammer is not within a preset abnormal coefficient range, it is determined that automatic adjustment processing of the excitation equipment of the drop hammer is required.

[0016] Other features and advantages will be described in the following description, and partly become apparent from the description, or understood by practicing the invention. The purpose and other advantages of the invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0019] Figure 1 This is a flow chart of an automatic drop-hammer excitation device for pile foundation testing using a high-strain method that is easy to assemble and install; Figure 2 is a flow chart of a method for determining similar historical piles; Figure 3 is a flow chart of a method for determining a reliable exciting force among exciting forces; Figure 4 The present invention is a flow chart of a method for determining a preferred excitation force among reliable excitation forces. DETAILED DESCRIPTION

[0020] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0021] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0022] To solve the above problems, according to one aspect of the present invention, Figure 1 According to one aspect of the present invention, there is provided an automatic drop-hammer vibration excitation device for high-strain pile foundation detection that is easy to assemble and install, including a vibration processing module, a data processing module, and a convenient disassembly module, which is applied to an automatic drop-hammer vibration excitation method, specifically including: S1 performs a drop hammer excitation process according to a preset excitation force, determines the similarity between the test data and the historical test data based on the analysis result of the test data of the pile foundation using the high strain method, and determines similar historical pile foundations corresponding to the historical test data using the similarity; Furthermore, the excitation processing module is responsible for performing the excitation processing of the drop hammer.

[0023] Specifically, the data processing module is responsible for adjusting, analyzing and processing the exciting force of the drop hammer.

[0024] It should be noted that the convenient disassembly module is responsible for assembling the excitation processing module, the data processing module and the drop hammer excitation device.

[0025] Furthermore, the preset exciting force is determined according to a preset trial exciting force of the exciting device.

[0026] It can be understood that the similarity between the detection data and the historical detection data includes the historical detection piles corresponding to different historical detection data and the feature similarity between different historical detection data and the detection features of the detection data.

[0027] Optionally, the detection characteristics include amplitude distribution characteristics and frequency characteristics.

[0028] It should be noted that if Figure 2 As shown, the method for determining the similar historical piles is: Determine the feature similarity between the detection data and the historical detection data in different types of detection features based on the similar situations, and divide the detection data into multiple time periods; Determine feature similarity coefficients in different time periods based on feature similarities of different types of detection features in different time periods, and determine similar time periods in the time periods based on the feature similarity coefficients; The quantity ratio of the similar time periods is used to determine whether the historical detection piles corresponding to the historical detection data are similar historical piles.

[0029] Further, when the number ratio of the similar time periods is greater than a preset number ratio, it is determined that the historical detection pile corresponding to the historical detection data is a similar historical pile.

[0030] Optionally, the method for determining similar historical piles includes steps S11-S13, specifically: S11 determines the feature similarity between the detection data and the historical detection data in different types of detection features based on the similarity situation, and divides the detection data into multiple time periods; S12 determines feature similarity coefficients in different time periods based on feature similarities of different types of detection features in different time periods, and determines similar time periods in the time periods based on the feature similarity coefficients; S13 determines the detection similarity coefficient between the detection data and the historical detection data by using the characteristic similarity coefficients of different similar time periods and the number of similar time periods, and determines whether the historical detection piles corresponding to the historical detection data are similar historical piles based on the detection similarity coefficient.

[0031] Furthermore, the time period divides the detection data according to a preset duration.

[0032] It can be understood that the feature similarity coefficient is determined based on the average value of feature similarities of different types of detection features within the time period.

[0033] It should be noted that, when the detection similarity coefficient of the historical detection data is greater than a preset similarity coefficient threshold, the historical detection pile corresponding to the historical detection data is determined to be a similar historical pile.

[0034] Optionally, the above step S11 includes steps S111-S113, which are specifically: S111 determines the feature similarity between the detection data and the historical detection data in different types of detection features through the similarity situation. If it is determined based on the feature similarity that the detection features have similar detection features, then the process proceeds to step S112. If it is determined based on the feature similarity that the detection features do not have similar detection features, then the process proceeds to step S113. S112: when the feature quantity ratio of the similar detection feature is greater than the preset feature quantity ratio, the historical detection pile corresponding to the historical detection data is determined to be a similar historical pile; when the feature quantity ratio of the similar detection feature is not greater than the preset feature quantity ratio, the process proceeds to step S113; S113 divides the detection data into multiple time periods and proceeds to step S12.

[0035] Optionally, the above step S12 includes steps S121 to S123, which are specifically: S121 determines whether there is a time period with similar detection features based on the feature similarity of different types of detection features in different time periods. If there is a time period with similar detection features, the process proceeds to the next step. If there is no time period with similar detection features, the process determines that the historical detection pile corresponding to the historical detection data does not belong to a similar historical pile. S122 uses the time periods with similar detection features as screening detection time periods. When the number of the screening detection time periods does not meet the requirement, it is determined that the historical detection piles corresponding to the historical detection data do not belong to similar historical piles. When the number of the screening detection time periods meets the requirement, the process proceeds to step S123. S123 determines the feature similarity coefficients in different time periods based on the feature similarity amounts of different types of detection features in different time periods, and when it is determined based on the feature similarity coefficient that similar time periods exist in the time periods, the process proceeds to step S13. When it is determined based on the feature similarity coefficient that similar time periods do not exist in the time periods, it is determined that the historical detection piles corresponding to the historical detection data do not belong to similar historical piles.

[0036] Optionally, before entering step S13, it is also necessary to determine whether the number of similar time periods is greater than a preset similar time period number threshold. When the number of similar time periods is greater than the preset similar time period number threshold, it is determined that the historical detection piles corresponding to the historical detection data belong to similar historical piles. When the number of similar time periods is not greater than the preset similar time period number threshold, proceed to step S13.

[0037] S2: determining hammer center deviation data of the similar historical pile foundation under different exciting forces based on the analysis results of the historical exciting data of the drop hammer of the similar historical pile foundation, and determining the reliable exciting force among the exciting forces based on the hammer center deviation data; Furthermore, the hammer center deviation data includes the number of similar historical piles having hammer center deviation under the exciting force, the number of hammer center deviations, and the hammer center deviation amounts of different hammer center deviation numbers.

[0038] It should be noted that if Figure 3 As shown, the method for determining the reliable exciting force in the exciting force is: Determine similar historical piles with hammer center deviation under the exciting force through the hammer center deviation data, and use them as piles with hammer center deviation; Determine the hammer center deviation coefficient based on the proportion of the hammer center deviation piles to the similar historical piles; Whether the exciting force is a reliable exciting force is determined by the hammer center deviation coefficient.

[0039] Further, when the hammer center deviation coefficient of the exciting force does not meet the requirement, it is determined that the exciting force is not a reliable exciting force.

[0040] It should also be noted that the value range of the hammer center deviation coefficient of the exciting force is between 0 and 1, wherein the larger the hammer center deviation coefficient of the exciting force is, the greater the probability that the hammer center of the drop hammer will deviate under the exciting force.

[0041] Optionally, the method for determining a reliable exciting force in the exciting force includes steps S21-S23, specifically: S21 determines similar historical piles with hammer center deviation under the excitation force through the hammer center deviation data, and uses them as hammer center deviation piles, and determines hammer center deviation coefficients based on the proportion of the hammer center deviation piles in the similar historical piles; Optionally, the above step S21 includes steps S211-S213, which are specifically: S211: When it is determined through the hammer center deviation data that there is no similar historical pile foundation with hammer center deviation under the exciting force, the exciting force is determined to be a reliable exciting force. When there is a similar historical pile foundation with hammer center deviation under the exciting force, the process proceeds to step S212; S212: similar historical piles with hammer center deviation under the exciting force are used as piles with hammer center deviation. When the number of the piles with hammer center deviation is less than the preset deviation pile number threshold, the process proceeds to step S213. When the number of the piles with hammer center deviation is not less than the preset deviation pile number threshold, it is determined that the exciting force is not a reliable exciting force. S213 determines the hammer center deviation coefficient based on the proportion of the hammer center deviation piles in the number of similar historical piles. When the hammer center deviation coefficient does not meet the requirements, it is determined that the exciting force is not a reliable exciting force. When the hammer center deviation coefficient meets the requirements, the process proceeds to step S22.

[0042] S22 determines the hammer core deviation times and hammer core deviation amounts of the different hammer core deviation times of the different hammer core deviation piles based on the hammer core deviation data of the different hammer core deviation piles, and determines the hammer core abnormality coefficients of the different hammer core deviation times using the hammer core deviation times and hammer core deviation amounts of the different hammer core deviation times; Optionally, the above step S22 includes steps S221-S223, specifically: S221 determines the hammer center deviation times of the piles with different hammer center deviations based on the hammer center deviation data of the piles with different hammer center deviations. When the total hammer center deviation times of the piles with different hammer center deviations do not meet the requirements, it is determined that the exciting force does not belong to the reliable exciting force. When the total hammer center deviation times of the piles with different hammer center deviations meet the requirements, the process proceeds to step S222; S222 determines the piles with severe hammer center deviation according to the hammer center deviation times of the piles with different hammer center deviations. When the number of the piles with severe hammer center deviations does not meet the requirement, it is determined that the exciting force does not belong to the reliable exciting force. When the number of the piles with severe hammer center deviations meets the requirement, the process proceeds to step S223. S223 uses the hammer core deviation times and the hammer core deviation amounts of different hammer core deviation times to determine the hammer core abnormality coefficients of different hammer core deviation times. When the hammer core abnormality coefficient does not meet the requirement that the hammer core deviation times are within the preset deviation times interval, the process proceeds to step S23. When the hammer core abnormality coefficient does not meet the requirement that the hammer core deviation times are not within the preset deviation times interval, it is determined that the exciting force does not belong to a reliable exciting force.

[0043] S23 determines a comprehensive deviation coefficient of the exciting force based on the hammer center abnormality coefficients of different hammer center deviation times and the hammer center deviation times, and determines whether the exciting force is a reliable exciting force through the comprehensive deviation coefficient.

[0044] S3: obtaining displacement change data of the piles under different reliable exciting forces at different hammering times during the detection process, and determining the preferred exciting force among the reliable exciting forces in combination with historical detection data under different displacement change amounts; Specifically, Figure 4 As shown, the method for determining the preferred exciting force among the reliable exciting forces is: Determine the displacement variation under different hammering times by measuring the displacement variation of similar historical piles under the reliable exciting force under different hammering times during the detection process, and take the average displacement variation under different hammering times as the average displacement variation; Based on the historical detection data under the average displacement variation, the number of data deviations of the historical detection data under the average displacement variation is determined, and the data deviation coefficient of the historical detection data under the average displacement variation is determined by using the number ratio of the data deviation number; It is determined whether the reliable excitation force is a preferred excitation force based on the data deviation coefficient.

[0045] Furthermore, the number of data deviations is determined according to the abnormality of the detection feature of the historical detection data, and specifically the number of detections corresponding to the historical detection data with abnormal detection features is used as the number of data deviations.

[0046] It should be noted that the preferred exciting force is a reliable exciting force with the smallest data deviation coefficient.

[0047] Optionally, the method for determining the preferred exciting force among the reliable exciting forces includes steps S31-S33, specifically: S31 determines the displacement variation under different hammering times according to the displacement variation of similar historical foundation piles under the reliable excitation force under different hammering times during the detection process, and determines the excitation processing efficiency under the reliable excitation force according to the displacement variation under different hammering times; S32 determines the number of data deviations of the historical detection data under the displacement variation according to the historical detection data corresponding to the displacement variation under different hammering times, and determines the data deviation coefficient of the historical detection data under different displacement variation according to the number of data deviations, and determines the accuracy of the excitation processing under the reliable excitation force according to the data deviation coefficient of the historical detection data under different displacement variation; S33 determines the excitation processing reliability coefficient under the reliable excitation force based on the excitation processing efficiency and the excitation processing accuracy under the reliable excitation force, and determines whether the reliable excitation force is the preferred excitation force based on the excitation processing reliability coefficient.

[0048] Optionally, the excitation processing efficiency under the reliable excitation force is determined based on the displacement change under different hammering times and the length of the pile. Specifically, the number of hammerings required is based on the length and the displacement change, and the excitation processing efficiency under the reliable excitation force is determined by the required number of hammerings.

[0049] It should be noted that the reliability coefficient of the excitation processing under the reliable excitation force is determined according to the average value of the excitation processing efficiency and the excitation processing accuracy under the reliable excitation force.

[0050] Furthermore, the priority exciting force is a reliable exciting force having the largest reliability coefficient of the excitation processing.

[0051] S4 performs the vibration processing of the drop hammer based on the preferred exciting force, and determines whether automatic adjustment processing of the vibration equipment of the drop hammer is required according to the change of the vibration data under different adjacent hammer strike times.

[0052] Further, it is determined whether automatic adjustment of the vibration excitation equipment of the drop hammer is required, specifically: Determine the variation of the characteristic similarity amount of the detection characteristic of the vibration data under different adjacent hammering numbers according to the variation of the vibration data under different adjacent hammering numbers; The number of changes in the detection feature is determined by the change in the feature similarity amount of the detection feature of the excitation data under different adjacent hammering times; The abnormal excitation coefficient of the drop hammer is determined based on the proportion of the number of detection feature changes in the number of hammer strikes, and the abnormal excitation coefficient is used to determine whether automatic adjustment processing of the drop hammer's excitation equipment is required.

[0053] Specifically, when the abnormal coefficient of the vibration excitation of the drop hammer is not within a preset abnormal coefficient range, it is determined that automatic adjustment processing of the vibration excitation device of the drop hammer is required.

[0054] In another embodiment: Optionally, the step S31 includes steps S311-S313, specifically: S311 determines the displacement variation under different hammering times by comparing the displacement variation of similar historical piles under the reliable exciting force under different hammering times during the detection process. When the average value of the displacement variation under different hammering times is less than the preset displacement variation threshold, it is determined that the reliable exciting force does not belong to the priority exciting force. When the average value of the displacement variation under different hammering times is not less than the preset displacement variation threshold, the process proceeds to step S312. S312 determines the hammering times when the displacement variation is greater than the preset variation threshold value based on the displacement variation under different hammering times. When the hammering times when the displacement variation is greater than the preset variation threshold value is not within the preset number interval, it is determined that the reliable exciting force does not belong to the priority exciting force. When the hammering times when the displacement variation is greater than the preset variation threshold value is within the preset number interval, it proceeds to step S313. S313 determines the excitation processing efficiency under the reliable excitation force through the displacement change under different hammering times. If and only if the excitation processing efficiency under the reliable excitation force meets the requirements, enter step S32. If the excitation processing efficiency under the reliable excitation force does not meet the requirements, it is determined that the reliable excitation force does not belong to the priority excitation force.

[0055] Further, the step S32 includes steps S321-S324, specifically: S321 determines the data deviation times of the historical detection data under the displacement change amount according to the historical detection data corresponding to the displacement change amount under different hammering times, and when there is no data deviation times that does not meet the required displacement change amount, then proceeds to step S322; S322: when the number of displacement changes for which the data deviation times do not meet the requirement is within the preset number range, the process proceeds to step S323; when the number of displacement changes for which the data deviation times do not meet the requirement is not within the preset number range, it is determined that the reliable exciting force does not belong to the priority exciting force; S323 determines the data deviation coefficient of the historical detection data under different displacement changes by using the frequency ratio of the data deviation frequency and the data deviation frequency. When the number of displacement changes for which the data deviation coefficient is greater than the preset deviation coefficient threshold is within the preset number interval, the process proceeds to step S324. When the number of displacement changes for which the data deviation coefficient is greater than the preset deviation coefficient threshold is not within the preset number interval, it is determined that the reliable exciting force does not belong to the priority exciting force. S324 determines the accuracy of the excitation processing under the reliable excitation force through the data deviation coefficient of the historical detection data under different displacement changes. When the accuracy of the excitation processing under the reliable excitation force is less than the preset accuracy threshold, it is determined that the reliable excitation force does not belong to the priority excitation force. When the accuracy of the excitation processing under the reliable excitation force is not less than the preset accuracy threshold, proceed to step S33.

[0056] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, equipment, and non-volatile computer storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0057] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0058] The above description is only one or more embodiments of this specification and is not intended to limit this specification. For those skilled in the art, one or more embodiments of this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included in the scope of the claims of this specification.

Claims

1. An automatic drop-hammer vibration excitation device for high-strain pile foundation detection that is easy to assemble and install, including a vibration processing module, a data processing module, and a convenient disassembly module, which is applied to an automatic drop-hammer vibration excitation method, characterized in that: Specifically include: Performing a drop hammer excitation process according to a preset excitation force, determining similarities between the test data and historical test data based on analysis results of the test data of the pile foundation using a high strain method, and determining similar historical pile foundations corresponding to the historical test data using the similarities; Determine hammer center deviation data of the similar historical pile foundation under different exciting forces based on the analysis results of the historical exciting data of the drop hammer of the similar historical pile foundation, and determine the reliable exciting force among the exciting forces based on the hammer center deviation data; Obtaining displacement change data of the piles under different reliable exciting forces at different hammering times during the detection process, and determining the preferred exciting force among the reliable exciting forces in combination with historical detection data under different displacement change amounts; The drop hammer excitation processing is performed based on the preferred excitation force, and it is determined whether automatic adjustment processing of the drop hammer excitation equipment is required according to the change of the excitation data under different adjacent hammer blow numbers.

2. The automatic drop-hammer vibration excitation device for high-strain pile testing that is easy to assemble and install as claimed in claim 1 is characterized in that: The excitation processing module is responsible for performing the excitation processing of the drop hammer.

3. The automatic drop-hammer vibration excitation device for pile foundation testing by high-strain method that is easy to assemble and install as claimed in claim 1 is characterized in that: The data processing module is responsible for adjusting and analyzing the exciting force of the drop hammer; A further technical solution is that the convenient disassembly module is responsible for assembling the excitation processing module, the data processing module and the drop hammer excitation device.

4. The automatic drop-hammer vibration excitation device for pile foundation testing by high-strain method that is easy to assemble and install as claimed in claim 1 is characterized in that: The preset exciting force is determined according to a preset trial exciting force of the exciting device.

5. The automatic drop-hammer vibration excitation device for pile foundation testing by high-strain method that is easy to assemble and install as claimed in claim 1 is characterized in that: The similarity between the detection data and the historical detection data includes the historical detection piles corresponding to different historical detection data and the feature similarity between different historical detection data and the detection features of the detection data.

6. The automatic drop-hammer vibration excitation device for pile foundation testing by high-strain method that is easy to assemble and install as claimed in claim 1, characterized in that: The method for determining the similar historical piles is: Determine the feature similarity between the detection data and the historical detection data in different types of detection features based on the similar situations, and divide the detection data into multiple time periods; Determine feature similarity coefficients in different time periods based on feature similarities of different types of detection features in different time periods, and determine similar time periods in the time periods based on the feature similarity coefficients; The quantity ratio of the similar time periods is used to determine whether the historical detection piles corresponding to the historical detection data are similar historical piles.

7. The automatic drop-hammer vibration excitation device for pile foundation testing by high-strain method that is easy to assemble and install as claimed in claim 6, characterized in that: When the number ratio of the similar time periods is greater than the preset number ratio, it is determined that the historical detection pile corresponding to the historical detection data is a similar historical pile.

8. The automatic drop-hammer excitation device for pile foundation testing by high-strain method that is easy to assemble and install as claimed in claim 6, characterized in that: The time period divides the detection data according to a preset duration.

9. The automatic drop-hammer vibration excitation device for pile foundation testing by high-strain method that is easy to assemble and install as claimed in claim 1, characterized in that: Determine whether automatic adjustment of the drop hammer excitation equipment is required, specifically: Determine the variation of the characteristic similarity amount of the detection characteristic of the vibration data under different adjacent hammering numbers according to the variation of the vibration data under different adjacent hammering numbers; The number of changes in the detection feature is determined by the change in the feature similarity amount of the detection feature of the excitation data under different adjacent hammering times; The abnormal excitation coefficient of the drop hammer is determined based on the proportion of the number of detection feature changes in the number of hammer strikes, and the abnormal excitation coefficient is used to determine whether automatic adjustment processing of the drop hammer's excitation equipment is required.

10. The automatic drop-hammer vibration excitation device for pile foundation testing using a high-strain method that is easy to assemble and install as claimed in claim 9, characterized in that: When the abnormal coefficient of the excitation of the drop hammer is not within the preset abnormal coefficient range, it is determined that automatic adjustment processing of the excitation equipment of the drop hammer is required.

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