Nondestructive testing method and system for cement grouting anchor rod pile based on resistivity flexible photovoltaic support

Abstract

The invention relates to the technical field of constructional engineering, and discloses a non-destructive testing method for a cement grouting anchor rod pile based on a resistivity flexible photovoltaic support, and the method comprises the steps: analyzing the foundation condition of the cement grouting anchor rod pile, and recognizing an adjacent medium of the cement grouting anchor rod pile; the electrode type of the cement grouting anchor rod pile is recognized, and resistivity measuring equipment of the cement grouting anchor rod pile is determined; the composition structure of the cement grouting anchor rod pile is recognized, electrode arrangement points of the cement grouting anchor rod pile are arranged, and the current flowing path of the resistivity measuring equipment is recognized; the resistivity of the cement grouting anchor rod pile is calculated, the resistivity is classified to obtain classified resistivity, and the internal defect of the cement grouting anchor rod pile is identified; and the bonding strength, the bonding resistivity and the bonding strength of the cement grouting anchor rod pile and the adjacent medium are analyzed, nondestructive testing is conducted on the cement grouting anchor rod pile, and a nondestructive testing result is generated. According to the invention, the detection quality of the flexible photovoltaic support cement grouting anchor rod pile can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a nondestructive detection method and system for cement grouting anchor piles based on resistivity flexible photovoltaic brackets. Background Art

[0002] Cement grouting anchor piles for flexible photovoltaic brackets refer to a reinforcement structure that can support solar photovoltaic panels on uneven or soft foundations. The stability and reliability of the photovoltaic bracket are ensured by inserting anchor rods into the foundation and grouting. Cement grouting anchor piles are a reinforcement material widely used in geotechnical engineering, mainly used to improve the stability of structures such as slopes, tunnels, and mines. However, due to quality problems in the construction process, such as insufficient grouting, the actual bearing capacity of the anchor piles may not meet the expected requirements, affecting the foundation stability of the flexible photovoltaic bracket. Therefore, it is particularly important to perform non-destructive testing of cement grouting anchor piles.

[0003] Traditional cement grouting anchor pile testing mainly uses the pull-out test method, which applies tension to the anchor pile through a pulling machine to observe the behavior of the cement grouting anchor pile during the force process. Although this method can provide relatively accurate anchor pile performance test results, it can only detect local areas and may be difficult to fully evaluate the performance of the entire cement grouting anchor pile, resulting in low accuracy of the cement grouting anchor pile performance test results, thereby affecting the long-term stability of the flexible photovoltaic bracket. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a resistivity-based nondestructive detection method and system for cement grouting anchor piles of flexible photovoltaic brackets, which can improve the detection quality of cement grouting anchor piles of flexible photovoltaic brackets.

[0005] In a first aspect, the present invention provides a nondestructive detection method for cement grouting anchor piles of a flexible photovoltaic support based on resistivity, comprising:

[0006] Acquire a cement grouting anchor pile to be tested, analyze the foundation conditions of the cement grouting anchor pile, identify the adjacent medium of the cement grouting anchor pile based on the foundation conditions, and analyze the medium properties of the adjacent medium;

[0007] Analyze the grouting material characteristics and the anchor pile structure of the cement grouting anchor pile, identify the electrode type of the cement grouting anchor pile according to the medium properties and the grouting material characteristics, and determine the resistivity measurement equipment of the cement grouting anchor pile based on the foundation conditions and the anchor pile structure;

[0008] Identify the component structure of the cement grouting anchor pile, set the electrode layout points of the cement grouting anchor pile based on the component structure, and identify the current flow path of the resistivity measurement device according to the electrode type and the electrode layout points;

[0009] Calculating the resistivity of the cement grouting anchor pile according to the resistivity measuring device and the current flow path, classifying the resistivity based on the composition structure to obtain classified resistivity, and identifying internal defects of the cement grouting anchor pile according to the classified resistivity;

[0010] Based on the internal defects and the resistivity, the bonding strength between the cement grouting anchor pile and the adjacent medium is analyzed, and in combination with the resistivity and the bonding strength, nondestructive testing is performed on the cement grouting anchor pile to generate a nondestructive testing result.

[0011] In a possible implementation manner of the first aspect, analyzing the medium property of the adjacent medium based on the foundation condition includes:

[0012] Based on the foundation condition, identifying a medium type of the adjacent medium;

[0013] Performing a physical property test on the medium type to obtain the physical properties of the medium;

[0014] Conducting a water physical property test on the medium type to obtain the water physical characteristics of the medium;

[0015] Conducting a mechanical property test on the medium type to obtain the medium mechanical properties;

[0016] The medium properties of the adjacent medium are analyzed according to the medium physical properties, the medium hydraulic characteristics and the medium mechanical properties.

[0017] In a possible implementation of the first aspect, the identifying the electrode type of the cement grouting anchor pile according to the medium property and the grouting material property includes:

[0018] According to the medium properties and the grouting material characteristics, identifying the surrounding medium and the grouting body of the cement grouting anchor pile;

[0019] Analyzing the electrical conductivity of the surrounding medium and the grouting body;

[0020] extracting chemical components of the surrounding medium and the grouting body;

[0021] Based on the chemical composition, analyzing the corrosion effect of the surrounding medium and the grouting body on the cement grouting anchor pile;

[0022] Selecting the electrode material of the cement grouting anchor pile according to the conductive property and the corrosion effect;

[0023] Based on the electrode material, the electrode type of the cement grouting anchor pile is identified.

[0024] In a possible implementation of the first aspect, setting the electrode arrangement points of the cement grouting anchor pile based on the component structure includes:

[0025] Identifying an anchor pile area of ​​the cement grouting anchor pile;

[0026] Locating the enlarged head position, free section position and anchoring section position of the anchor pile area;

[0027] Identify the center axis and fixed steel bars of the enlarged head position;

[0028] According to the central axis, a resistivity measurement line of the anchor pile area is extracted;

[0029] Based on the resistivity measurement line, locating the electrode position of the fixed steel bar;

[0030] The electrode arrangement point of the cement grouting anchor pile is set in combination with the enlarged head position, the free section position, the anchor section position and the electrode position.

[0031] In a possible implementation manner of the first aspect, identifying a current flow path of the resistivity measurement device according to the electrode type and the electrode arrangement point includes:

[0032] Analyzing the arrangement of the electrode arrangement points according to the electrode type;

[0033] Based on the arrangement, identifying current injection points and potential measurement points of the electrode arrangement points;

[0034] determining a current flow channel of the resistivity measurement device according to the current injection point and the potential measurement point;

[0035] Based on the current flow channel and the potential measurement point, a current flow path of the resistivity measurement device is identified.

[0036] In a possible implementation of the first aspect, the resistivity measuring device and the current flow path calculate the resistivity of the cement grouting anchor pile, including:

[0037] Based on the current flow path, identifying the anchor pile body of the cement grouting anchor pile;

[0038] Extracting the cross-sectional area of ​​the anchor pile body;

[0039] According to the resistivity measuring device, identifying the electrode configuration of the cement grouting anchor pile;

[0040] Based on the electrode configuration, determining the electrode spacing of the cement grouting anchor pile;

[0041] identifying current parameters of the cement grouting anchor pile according to the resistivity measuring device and the current flow path;

[0042] Identifying potential electrodes in the current flow path, and determining voltage parameters of the cement grouting anchor pile based on the potential electrodes;

[0043] The resistivity of the cement grouting anchor pile is calculated according to the cross-sectional area, the pile length, the current parameter, the voltage parameter and the electrode spacing.

[0044] In a possible implementation of the first aspect, identifying internal defects of the cement grouting anchor pile according to the classified resistivity includes:

[0045] According to the classified resistivity, identifying the resistivity measurement point of the cement grouting anchor pile;

[0046] Collecting historical resistivity data of the resistivity measurement point, and setting an abnormality judgment baseline of the classified resistivity according to the historical resistivity data;

[0047] identifying an abnormal resistivity value of the classified resistivity according to the abnormality judgment baseline;

[0048] Based on the resistivity measurement points, analyzing the causes of the abnormal resistivity values;

[0049] According to the formation causes and the resistivity measurement points, internal defects of the cement grouting anchor pile are identified.

[0050] In a possible implementation of the first aspect, analyzing the bonding strength between the cement grouting anchor pile and the adjacent medium based on the internal defects and the resistivity includes:

[0051] acquiring a resistivity image of the resistivity;

[0052] According to the resistivity image, identifying the distribution of the resistivity;

[0053] Based on the distribution, identifying the slurry filling area of ​​the cement grouting anchor pile;

[0054] Analyzing the opening state of the enlarged head of the cement grouting anchor pile according to the slurry filling area;

[0055] Based on the internal defects and the opening state of the enlarged head, identifying the slurry density of the cement grouting anchor pile;

[0056] The bonding strength between the cement grouting anchor pile and the adjacent medium is analyzed according to the slurry density.

[0057] In a possible implementation of the first aspect, the step of performing nondestructive testing on the cement grouting anchor pile in combination with the resistivity and the bonding strength to generate a nondestructive testing result includes:

[0058] Calculating a correlation coefficient between the resistivity and the bonding strength;

[0059] Determine the key features of the cement grouting anchor pile in non-destructive testing according to the correlation coefficient, and extract the dimension reduction features of the key features;

[0060] Based on the dimension reduction feature, the resistivity and the bonding strength, non-destructive testing is performed on the cement grouting anchor pile to obtain a testing conclusion;

[0061] Calculating an error factor of the detection conclusion;

[0062] A nondestructive testing result is generated according to the error factor and the testing conclusion.

[0063] In a second aspect, the present invention provides a nondestructive detection system for cement grouting anchor piles based on resistivity flexible photovoltaic support, characterized in that the system comprises:

[0064] A material analysis module, used to obtain the cement grouting anchor pile to be tested, and analyze the foundation conditions of the cement grouting anchor pile, based on the foundation conditions, identify the adjacent medium of the cement grouting anchor pile, and analyze the medium properties of the adjacent medium;

[0065] A measurement preparation module, used for analyzing the grouting material characteristics and the anchor pile structure of the cement grouting anchor pile, identifying the electrode type of the cement grouting anchor pile according to the medium properties and the grouting material characteristics, and determining the resistivity measurement equipment of the cement grouting anchor pile based on the foundation conditions and the anchor pile structure;

[0066] A current path analysis module, used to identify the component structure of the cement grouting anchor pile, set the electrode layout points of the cement grouting anchor pile based on the component structure, and identify the current flow path of the resistivity measurement device according to the electrode type and the electrode layout points;

[0067] a resistivity measurement module, configured to calculate the resistivity of the cement grouting anchor pile according to the resistivity measurement device and the current flow path, classify the resistivity based on the composition structure to obtain a classified resistivity, and identify internal defects of the cement grouting anchor pile according to the classified resistivity;

[0068] The nondestructive testing module is used to analyze the bonding strength between the cement grouting anchor pile and the adjacent medium based on the internal defects and the resistivity, and to perform nondestructive testing on the cement grouting anchor pile in combination with the resistivity and the bonding strength to generate a nondestructive testing result.

[0069] Compared with the prior art, the technical principle and beneficial effects of this solution are:

[0070] The embodiment of the present invention can help determine the specific range and depth of the cement grouting anchor piles to be tested by acquiring the cement grouting anchor piles to be tested and analyzing the foundation conditions of the cement grouting anchor piles, thereby selecting a suitable resistivity measurement device and electrode layout scheme; secondly, the embodiment of the present invention can determine the electrode type of the cement grouting anchor piles according to the grouting material characteristics and the anchor pile structure of the cement grouting anchor piles by analyzing the grouting material characteristics of the cement grouting anchor piles, and determine the resistivity measurement device according to the layout and structure of the anchor piles, so as to evaluate the density and distribution uniformity of the grouting body. , thereby determining the grouting effect of the cement grouting anchor pile; again, the embodiment of the present invention identifies the component structure of the cement grouting anchor pile, and sets the electrode layout points of the cement grouting anchor pile based on the component structure. Electrodes can be laid out at different parts of the cement grouting anchor pile to monitor the stress changes and displacements of the anchor rods from multiple angles, thereby evaluating the stability and bearing capacity of the anchor pile and discovering potential problems of the anchor pile early; the embodiment of the present invention calculates the resistivity of the cement grouting anchor pile according to the resistivity measuring device and the current flow path, The internal defects of the cement grouting anchor pile are identified to guide the anti-corrosion design to ensure the structural safety of the flexible photovoltaic bracket, and the behavior changes of different areas of the cement grouting anchor pile are determined by the difference in resistivity, so as to more accurately identify the problems that may exist in the cement grouting anchor pile and identify the pores or uneven areas that may exist in the grouting body; finally, the embodiment of the present invention combines the resistivity and the bonding strength to perform non-destructive testing on the cement grouting anchor pile to generate non-destructive testing results, which can evaluate the distribution of slurry around the anchor pile and the anchoring effect and bearing capacity of the anchor rod. The comprehensive resistivity and bonding strength can reduce the misjudgment caused by single parameter detection and improve the accuracy and reliability of the detection. At the same time, non-destructive testing will not cause physical damage to the anchor pile, and a comprehensive evaluation can be performed without destroying the structure, avoiding the risks and costs that may be caused by traditional destructive testing. Finally, by performing non-destructive testing on the cement grouting anchor pile, it can be ensured that the quality and performance of the cement grouting anchor pile meet the quality requirements of the photovoltaic anchor rod, thereby ensuring the stability of the foundation of the flexible photovoltaic bracket and improving the safe and stable operation of the photovoltaic bracket system. Therefore, the resistivity-based nondestructive testing method for cement grouting anchor piles of flexible photovoltaic supports proposed in the present invention can improve the testing quality of cement grouting anchor piles of flexible photovoltaic supports. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0072] Figure 1 A schematic flow chart of a method for nondestructive testing of cement grouting anchor piles of a resistivity-based flexible photovoltaic support provided by an embodiment of the present invention;

[0073] Figure 2 A module schematic diagram of a resistivity-based nondestructive testing system for cement grouting anchor piles of a flexible photovoltaic support provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0074] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0075] The embodiment of the present invention provides a non-destructive detection method for cement grouting anchor piles based on resistivity flexible photovoltaic support, and the execution subject of the non-destructive detection method for cement grouting anchor piles based on resistivity flexible photovoltaic support includes but is not limited to at least one of the electronic devices such as a server and a terminal that can be configured to execute the method provided by the embodiment of the present invention. In other words, the non-destructive detection method for cement grouting anchor piles based on resistivity flexible photovoltaic support can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, etc. The server can be an independent server, or it can be a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content distribution networks (Content Delivery Network, CDN), and big data and artificial intelligence platforms.

[0076] See also Figure 1 FIG. 1 is a flow chart of a nondestructive testing method for cement grouting anchor piles of a resistivity-based flexible photovoltaic support provided by an embodiment of the present invention. Figure 1 A nondestructive testing method for cement grouting anchor piles of flexible photovoltaic support based on resistivity described in the literature includes:

[0077] S1. Acquire a cement grouting anchor pile to be tested, and analyze the foundation conditions of the cement grouting anchor pile. Based on the foundation conditions, identify the adjacent medium of the cement grouting anchor pile, and analyze the medium properties of the adjacent medium.

[0078] The embodiment of the present invention can help determine the specific range and depth of the cement grouting anchor piles to be tested by acquiring the cement grouting anchor piles to be tested and analyzing the foundation conditions of the cement grouting anchor piles, thereby selecting appropriate resistivity measurement equipment and electrode layout schemes. The cement grouting anchor piles refer to a foundation reinforcement body in which cement slurry is injected into an anchor pile pit, and the foundation conditions refer to the geological and environmental conditions at the location of the cement grouting anchor piles, such as soil type.

[0079] Optionally, the foundation condition analysis of the cement grouting anchor piles may be obtained through a geographic information system.

[0080] Furthermore, the embodiment of the present invention identifies the adjacent medium of the cement grouting anchor pile based on the foundation conditions, and can identify the uniformity of the grouting body through the permeability and porosity of the adjacent medium, thereby accurately evaluating the stability of the anchor pile. The adjacent medium refers to the soil, rock and other possible materials that are in direct contact with or adjacent to the cement grouting anchor pile.

[0081] Optionally, based on the foundation conditions, the identification of the adjacent medium of the cement grouting anchor pile can be obtained by drilling and sampling the medium around the cement grouting anchor pile.

[0082] The embodiment of the present invention can determine the anchoring force and stability of the cement grouting anchor pile by analyzing the medium properties of the adjacent medium based on the foundation conditions. The medium properties refer to the physical, chemical and mechanical properties of the medium, such as permeability, water content, porosity, etc.

[0083] As an embodiment of the present invention, the medium properties of the adjacent medium are analyzed based on the foundation conditions, including: identifying the medium type of the adjacent medium based on the foundation conditions; performing a physical property test on the medium type to obtain medium physical properties; performing a hydrological property test on the medium type to obtain medium hydrological properties; performing a mechanical property test on the medium type to obtain medium mechanical properties; and analyzing the medium properties of the adjacent medium based on the medium physical properties, the medium hydrological properties and the medium mechanical properties.

[0084] Among them, the medium type refers to the specific classification of soil or rock that constitutes the foundation, such as sand, silt, granite, etc., the medium physical properties refer to the physical characteristics of the medium, such as particle size distribution, density, water content, etc., the medium hydraulic properties refer to the characteristics exhibited when the medium interacts with water, such as permeability, water retention, porosity, etc., and the medium mechanical properties refer to the behavioral characteristics of the medium when subjected to force, such as shear strength and compressibility.

[0085] Optionally, the physical property test of the medium type can be achieved by screening method and sedimentation method, the hydraulic property test of the medium type can be obtained by a permeability test device, and the mechanical property test of the medium type can be achieved by triaxial compression test.

[0086] S2. Analyze the grouting material characteristics and anchor pile structure of the cement grouting anchor pile, identify the electrode type of the cement grouting anchor pile according to the medium properties and the grouting material characteristics, and determine the resistivity measurement equipment of the cement grouting anchor pile based on the foundation conditions and the anchor pile structure.

[0087] The embodiment of the present invention can determine the electrode type of the cement grouting anchor pile through the grouting material characteristics and the anchor pile structure of the cement grouting anchor pile by analyzing the grouting material characteristics and the anchor pile structure of the cement grouting anchor pile, and determine the resistivity measurement equipment according to the layout and structure of the anchor pile. The grouting material characteristics refer to the physical, chemical and mechanical properties of the grouting material, such as durability, curing time, shrinkage, etc., and the anchor pile structure refers to the arrangement, length and depth of the anchor pile in the foundation.

[0088] Optionally, the grouting material property analysis of the cement grouting anchor pile can be achieved by laboratory testing, and the anchor pile structure analysis of the cement grouting anchor pile can be obtained by measuring equipment, such as an electronic depth meter, a laser rangefinder, an anchor pile displacement monitor, etc.

[0089] Furthermore, the embodiment of the present invention can ensure the effective transmission of current and improve the accuracy and reliability of measurement data by identifying the electrode type of the cement grouting anchor pile according to the medium properties and the grouting material characteristics. The electrode type refers to different types of electrodes used in resistivity measurement, such as copper / copper sulfide electrodes.

[0090] As an embodiment of the present invention, the identifying the electrode type of the cement grouting anchor pile according to the medium properties and the grouting material characteristics includes: identifying the surrounding medium and the grouting body of the cement grouting anchor pile according to the medium properties and the grouting material characteristics; analyzing the electrical conductivity of the surrounding medium and the grouting body; extracting the chemical composition of the surrounding medium and the grouting body; based on the chemical composition, analyzing the corrosion effect of the surrounding medium and the grouting body on the cement grouting anchor pile; selecting the electrode material of the cement grouting anchor pile according to the electrical conductivity and the corrosion effect; and identifying the electrode type of the cement grouting anchor pile based on the electrode material.

[0091] Among them, the surrounding medium refers to the stratum or geotechnical environment around the cement grouting anchor pile, including soil layers or rocks, etc., the grouting body refers to the grouting material used to fix and reinforce the anchor in the cement grouting anchor pile, usually composed of cement, sand, additives, etc., the conductive property refers to the ability of a substance to transmit electric current, the chemical composition refers to the various chemical elements and compounds contained in the surrounding medium and the grouting body, the corrosion effect refers to the destructive effect of the chemical components in the surrounding medium on the cement grouting anchor pile material, including electrochemical corrosion, pitting corrosion, etc., and the electrode material refers to the substance used for the electrode in the cement grouting anchor pile.

[0092] Optionally, the conductivity analysis of the surrounding medium and the grouting body can be achieved using guided wave propagation testing technology, and based on the conductivity and the corrosion effect, the selection of electrode material for the cement grouting anchor pile can be determined by the compatibility of the electrode material with the surrounding medium and the grouting body.

[0093] The embodiment of the present invention determines the resistivity measuring equipment of the cement grouting anchor pile based on the foundation conditions and the anchor pile structure. The resistivity distribution of different areas can be measured to evaluate the density and distribution uniformity of the grouting body, thereby determining the grouting effect of the cement grouting anchor pile. The resistivity measuring equipment refers to a special instrument used to measure the resistivity of the cement grouting anchor pile and its surrounding medium, such as a resistivity meter.

[0094] Optionally, based on the foundation conditions and the anchor pile structure, the resistivity measurement equipment of the cement grouting anchor pile can be determined by a parallel electrical method or a high-density electrical method.

[0095] S3. Identify the component structure of the cement grouting anchor pile, set the electrode layout points of the cement grouting anchor pile based on the component structure, and identify the current flow path of the resistivity measurement device according to the electrode type and the electrode layout points.

[0096] By identifying the component structure of the cement grouting anchor pile, the embodiment of the present invention can arrange electrodes at different parts of the cement grouting anchor pile to achieve complete resistivity measurement of the cement grouting anchor pile. The component structure refers to the components that form the entire cement grouting anchor pile, including the anchor head, anchoring section, free section, etc.

[0097] Optionally, the component structure identification of the cement grouting anchor pile can be achieved by using a construction material template of the grouting anchor.

[0098] Furthermore, the embodiment of the present invention sets the electrode layout points of the cement grouting anchor pile based on the component structure, so as to monitor the stress changes and displacement of the anchor from multiple angles, thereby evaluating the stability and bearing capacity of the anchor pile and discovering potential problems of the anchor pile early. The electrode layout point refers to the electrode position for measuring resistivity set at a specific position of the grouting anchor.

[0099] As an embodiment of the present invention, the electrode layout points of the cement grouting anchor piles are set based on the component structure, including: identifying the anchor pile area of ​​the cement grouting anchor pile; locating the enlarged head position, free section position and anchor section position of the anchor pile area; identifying the central axis and fixed steel bars of the enlarged head position; according to the central axis, separating out the resistivity measurement line of the anchor pile area; locating the electrode position of the fixed steel bars based on the resistivity measurement line; and setting the electrode layout points of the cement grouting anchor piles in combination with the enlarged head position, the free section position, the anchor section position and the electrode position.

[0100] Among them, the anchor pile area refers to the spatial range of the anchor pile from the top pile to the bottom of the pile and a certain area around it, the enlarged head position refers to the area with a larger diameter in the anchor pile, the free section position refers to the part of the anchor pile that is not fixed in the stratum, the anchoring section position refers to the part of the anchor pile that is fixed in the stratum, the central axis refers to the center line passing through the enlarged head position, the fixed steel bar refers to the steel bar used to fix and strengthen the structure at the enlarged head position, the resistivity measuring line refers to a series of straight or curved lines of measuring electrodes arranged on the ground or on the anchor pile, and the electrode position refers to the specific point where the electrode is installed on the fixed steel bar.

[0101] Optionally, the anchor pile area identification of the cement grouting anchor pile can be determined by geological exploration technology, the enlarged head position, free section position and anchoring section position positioning of the anchor pile area can be achieved by using geological radar, and the resistivity measurement line precipitation of the anchor pile area based on the central axis can be obtained by a geological resistivity imaging system.

[0102] The embodiment of the present invention can identify the abnormal resistance of cement grouting anchor piles by identifying the current flow path of the resistivity measuring device according to the electrode type and the electrode layout point, thereby helping to detect potential structural defects of the cement grouting anchor piles and conduct long-term stability assessment. The current flow path refers to the entire path in the resistivity measuring device where the current flows from the power supply electrode into the ground, passes through the underground medium, and is finally detected at the measuring electrode.

[0103] As an embodiment of the present invention, identifying the current flow path of the resistivity measurement device according to the electrode type and the electrode layout points includes: analyzing the arrangement of the electrode layout points according to the electrode type; identifying the current injection points and the potential measurement points of the electrode layout points based on the arrangement; determining the current flow channel of the resistivity measurement device according to the current injection points and the potential measurement points; and identifying the current flow path of the resistivity measurement device based on the current flow channel and the potential measurement points.

[0104] Among them, the arrangement method refers to the specific arrangement and configuration of electrodes in resistivity measurement, such as the Wenner array (four electrodes are arranged in a straight line, and the spacing between adjacent electrodes is equal). The current injection point refers to the specific location where the current flows from the resistivity measurement equipment into the underground medium. The potential measurement point refers to the point used to measure the potential difference generated by the current flow. The current flow channel refers to the path of the current flowing from the current injection point to the potential measurement point. For example, in the Wenner array, the current will flow on a circular path; in the dipole-dipole array, the current will flow on a linear path.

[0105] Optionally, the identification of the current injection point and the potential measurement point of the electrode layout point based on the arrangement can be achieved using power supply electrodes and measuring electrodes, and the determination of the current flow channel of the resistivity measurement device based on the current injection point and the potential measurement point can be obtained through numerical simulation software, such as finite element analysis software.

[0106] S4. Calculate the resistivity of the cement grouting anchor pile according to the resistivity measuring device and the current flow path, classify the resistivity based on the composition structure to obtain classified resistivity, and identify internal defects of the cement grouting anchor pile according to the classified resistivity.

[0107] The embodiment of the present invention calculates the resistivity of the cement grouting anchor pile according to the resistivity measuring device and the current flow path, thereby evaluating the density and anchoring quality of the grouting body and judging the corrosiveness of the formation to guide the anti-corrosion design and ensure the structural safety of the flexible photovoltaic bracket. The resistivity refers to the degree of obstruction of the material to the flow of current.

[0108] As an embodiment of the present invention, the resistivity of the cement grouting anchor pile is calculated according to the resistivity measuring device and the current flow path, comprising: identifying the anchor pile body of the cement grouting anchor pile based on the current flow path; extracting the cross-sectional area of ​​the anchor pile body and identifying the pile body length of the anchor pile body; identifying the electrode configuration of the cement grouting anchor pile according to the resistivity measuring device; determining the electrode spacing of the cement grouting anchor pile based on the electrode configuration; identifying the current parameter of the cement grouting anchor pile according to the resistivity measuring device and the current flow path; identifying the potential electrode in the current flow path, and determining the voltage parameter of the cement grouting anchor pile based on the potential electrode; and calculating the resistivity of the cement grouting anchor pile according to the cross-sectional area, the pile body length, the current parameter, the voltage parameter and the electrode spacing.

[0109] Among them, the anchor pile body refers to the anchor rod member assembled from reinforcement, anti-corrosion protection body, isolation frame and centering bracket, the cross-sectional area refers to the cross-sectional area of ​​the anchor pile body, the pile body length refers to the length of the rod body part of the anchor from the proximal end of the anchoring section to the anchor head, the electrode configuration method refers to the arrangement of electrodes in resistivity measurement, such as Wenner array, Schl umberger array, etc., the electrode spacing refers to the distance between adjacent electrodes in resistivity measurement, the current parameter refers to the parameter of the current injected into the underground medium through the current electrode in resistivity measurement, such as the current size, duration, etc., the potential electrode refers to the electrode used to measure the potential difference, and the voltage parameter refers to the voltage value measured between the potential electrodes in resistivity measurement.

[0110] Optionally, based on the electrode configuration, the electrode spacing of the cement grouting anchor pile can be determined by measuring the straight-line distance between adjacent electrodes, the potential electrode identification in the current flow path can be achieved using M electrodes and N electrodes, and based on the potential electrodes, the voltage parameters of the cement grouting anchor pile can be obtained by connecting the potential electrodes to a resistivity measuring device.

[0111] In an optional embodiment of the present invention, the cross-sectional area of ​​the anchor pile body is extracted using the following formula:

[0112]

[0113] Wherein, S represents the cross-sectional area of ​​the anchor pile body, and d represents the diameter of the anchor pile body.

[0114] In another optional embodiment of the present invention, the resistivity of the cement grouting anchor pile is calculated using the following formula according to the cross-sectional area, the pile length, the current parameter, the voltage parameter and the electrode spacing:

[0115]

[0116] Wherein, ρ represents the resistivity of the cement grouting anchor pile, V represents the voltage parameter of the cement grouting anchor pile, I represents the current parameter of the cement grouting anchor pile, L represents the length of the cement grouting anchor pile, A represents the cross-sectional area of ​​the cement grouting anchor pile, and H represents the electrode spacing.

[0117] The embodiment of the present invention classifies the resistivity based on the composition structure to obtain classified resistivity. The behavior changes of different areas of the cement grouting anchor pile can be determined by the difference in resistivity, so as to more accurately identify possible problems in the cement grouting anchor pile. The classified resistivity refers to dividing the resistivity data into different categories or grades according to different standards or characteristics.

[0118] Optionally, the classification process of the resistivity based on the composition structure can be obtained by a classification algorithm, such as decision tree classification.

[0119] Furthermore, the embodiment of the present invention can identify the internal defects of the cement grouting anchor pile according to the classified resistivity, and can identify the pores or uneven areas that may exist in the grouting body to help evaluate the structural integrity and function of the cement grouting anchor pile. The internal defects refer to the situation where the internal structure of the anchor pile is incomplete or there are quality problems due to various reasons during or after the grouting process of the anchor pile.

[0120] As an embodiment of the present invention, the identifying internal defects of the cement grouting anchor pile according to the classified resistivity includes: identifying the resistivity measurement points of the cement grouting anchor pile according to the classified resistivity; collecting historical resistivity data of the resistivity measurement points, and setting an abnormality judgment baseline of the classified resistivity according to the historical resistivity data; identifying abnormal resistivity values ​​of the classified resistivity according to the abnormality judgment baseline; analyzing the formation causes of the abnormal resistivity values ​​based on the resistivity measurement points; and identifying the internal defects of the cement grouting anchor pile according to the formation causes and the resistivity measurement points.

[0121] Among them, the resistivity measurement point refers to the measurement position set at key parts such as the anchor section, free section, enlarged head, and steel bar of the cement grouting anchor pile; the historical resistivity data refers to the record of resistivity values ​​measured at different time points in the past; the abnormal judgment baseline refers to a reference value or range set according to the resistivity distribution under normal conditions; the abnormal resistivity value refers to a resistivity reading that deviates significantly from the normal range compared with the abnormal judgment baseline; the formation cause refers to various reasons that cause the resistivity measurement value to deviate significantly from the expected or normal value. For example, if the resistivity of the anchor section is abnormally low, it may be due to the presence of unfilled voids or cracks in the grouting body.

[0122] Optionally, according to the classified resistivity, the resistivity measurement point identification of the cement grouting anchor pile can be determined by electrode layout points, and based on the resistivity measurement points, the cause analysis of the abnormal resistivity value can be determined by analyzing the data of the resistivity measurement points in combination with geological conditions, construction records and material properties.

[0123] S5. Based on the internal defects and the resistivity, the bonding strength between the cement grouting anchor pile and the adjacent medium is analyzed, and in combination with the resistivity and the bonding strength, nondestructive testing is performed on the cement grouting anchor pile to generate a nondestructive testing result.

[0124] The embodiment of the present invention analyzes the bonding strength between the cement grouting anchor pile and the adjacent medium based on the internal defects and the resistivity, so as to understand the bonding strength and density between the grouting body of the anchoring section of the anchor and the stratum, thereby helping to evaluate the grouting quality of the cement grouting anchor pile and improve the foundation stability of the flexible photovoltaic support. The bonding strength refers to the bonding strength between the grouting body and the surrounding stratum or anchor.

[0125] As an embodiment of the present invention, the analysis of the bonding strength between the cement grouting anchor pile and the adjacent medium based on the internal defects and the resistivity includes: acquiring a resistivity image of the resistivity; identifying the distribution of the resistivity based on the resistivity image; identifying the slurry filling area of ​​the cement grouting anchor pile based on the distribution; analyzing the enlarged head opening state of the cement grouting anchor pile based on the slurry filling area; identifying the slurry density of the cement grouting anchor pile based on the internal defects and the enlarged head opening state; and analyzing the bonding strength between the cement grouting anchor pile and the adjacent medium based on the slurry density.

[0126] Among them, the resistivity image refers to the image obtained by resistivity imaging technology, the distribution condition refers to the distribution characteristics of resistivity in the cement grouting anchor pile and its surrounding medium, the slurry filling area refers to the area where the grouting body is located in the cement grouting anchor pile, the enlarged head opening condition refers to the formation and state of the enlarged head at the bottom of the cement grouting anchor pile, and the slurry density refers to the density of the grouting body, that is, the weight of the grouting material per unit volume.

[0127] Optionally, the resistivity image acquisition of the resistivity can be achieved by applying a DC electric field on the surface to measure the potential difference, and then using an inversion algorithm to calculate a two-dimensional image of the resistivity distribution. According to the slurry filling area, the analysis of the opening state of the enlarged head of the cement grouting anchor pile can be achieved by using the slurry density of the slurry filling area.

[0128] Furthermore, the embodiment of the present invention performs nondestructive testing on the cement grouting anchor pile by combining the resistivity and the bonding strength to generate nondestructive testing results, which can evaluate the distribution of slurry around the anchor pile and the anchoring effect and bearing capacity of the anchor. The comprehensive resistivity and bonding strength can reduce the misjudgment caused by single parameter detection and improve the accuracy and reliability of the detection. At the same time, nondestructive testing will not cause physical damage to the anchor pile, and a comprehensive evaluation can be performed without destroying the structure, avoiding the risks and costs that may be caused by traditional destructive testing. Finally, by performing nondestructive testing on the cement grouting anchor pile, it can be ensured that the quality and performance of the cement grouting anchor pile meet the quality requirements of the photovoltaic anchor, thereby ensuring the stability of the foundation of the flexible photovoltaic bracket and improving the safe and stable operation of the photovoltaic bracket system. The nondestructive testing result refers to the conclusion obtained after detecting the internal structure, properties, state or defects of the object being detected without damaging or destroying it, such as identifying the defect length in the anchoring section of the cement grouting anchor pile through the nondestructive testing technology of the cement grouting anchor pile.

[0129] As an embodiment of the present invention, the nondestructive testing of the cement grouting anchor piles is performed in combination with the resistivity and the bonding strength to generate a nondestructive testing result, including: calculating the correlation coefficient between the resistivity and the bonding strength; determining the key features of the cement grouting anchor piles in the nondestructive testing according to the correlation coefficient, and extracting the reduced dimension features of the key features; based on the reduced dimension features, the resistivity and the bonding strength, the nondestructive testing of the cement grouting anchor piles is performed to obtain a testing conclusion; calculating the error factor of the testing conclusion; and generating a nondestructive testing result according to the error factor and the testing conclusion.

[0130] Among them, the correlation coefficient refers to a measure of the linear relationship between resistivity and bonding strength, the key feature refers to a feature that can significantly affect the test result in non-destructive testing, the dimensionality reduction feature refers to a feature obtained after processing by dimensionality reduction technology (such as PCA), the test conclusion refers to an unverified result obtained after analysis of non-destructive testing data, and the error factor refers to the deviation between the test result and the true value caused by measurement error, data processing error or other uncertain factors in the non-destructive testing result.

[0131] Optionally, the key feature determination of the cement grouting anchor pile in non-destructive testing based on the correlation coefficient can be achieved using a machine learning algorithm, such as a wavelet packet decomposition algorithm; the non-destructive testing of the cement grouting anchor pile based on the dimensionality reduction features, the resistivity and the bonding strength can be achieved using a machine learning model, such as a neural network model; the correlation coefficient calculation between the resistivity and the bonding strength can be determined using the Pearson correlation coefficient formula.

[0132] In an optional embodiment of the present invention, the error factor of the detection conclusion is calculated using the following formula:

[0133]

[0134] Among them, r represents the error factor of the test conclusion, k represents the number of test samples for the test conclusion, and y q Indicates the true value of the qth test sample of the detection conclusion, Indicates the predicted value of the qth test sample of the detection conclusion.

[0135] It can be seen that the embodiment of the present invention can help determine the specific range and depth of the cement grouting anchor piles to be detected by obtaining the cement grouting anchor piles to be detected and analyzing the foundation conditions of the cement grouting anchor piles, so as to select a suitable resistivity measurement device and electrode layout scheme; secondly, the embodiment of the present invention can determine the electrode type of the cement grouting anchor piles according to the grouting material characteristics and the anchor pile structure of the cement grouting anchor piles by the grouting material characteristics, and determine the resistivity measurement device according to the layout and structure of the anchor piles, so as to evaluate the density and distribution of the grouting body. The uniformity of distribution can be determined to determine the grouting effect of the cement grouting anchor pile; thirdly, the embodiment of the present invention identifies the component structure of the cement grouting anchor pile, and sets the electrode layout points of the cement grouting anchor pile based on the component structure. Electrodes can be laid out at different parts of the cement grouting anchor pile to monitor the stress changes and displacements of the anchor rods from multiple angles, thereby evaluating the stability and bearing capacity of the anchor pile and discovering potential problems of the anchor pile early; the embodiment of the present invention calculates the resistivity of the cement grouting anchor pile based on the resistivity measuring device and the current flow path. , the internal defects of the cement grouting anchor pile can be identified to guide the anti-corrosion design to ensure the structural safety of the flexible photovoltaic bracket, and the behavioral changes of different areas of the cement grouting anchor pile can be determined through the difference in resistivity, so as to more accurately identify the problems that may exist in the cement grouting anchor pile and identify the pores or uneven areas that may exist in the grouting body; finally, the embodiment of the present invention combines the resistivity and the bonding strength to perform non-destructive testing on the cement grouting anchor pile to generate non-destructive testing results, which can evaluate the distribution of slurry around the anchor pile and the anchoring effect and bearing capacity of the anchor rod. The comprehensive resistivity and bonding strength can reduce the misjudgment caused by single parameter detection and improve the accuracy and reliability of the detection. At the same time, non-destructive testing will not cause physical damage to the anchor pile, and a comprehensive evaluation can be performed without destroying the structure, avoiding the risks and costs that may be brought by traditional destructive testing. Finally, by performing non-destructive testing on the cement grouting anchor pile, it can be ensured that the quality and performance of the cement grouting anchor pile meet the quality requirements of the photovoltaic anchor rod, thereby ensuring the stability of the foundation of the flexible photovoltaic bracket and improving the safe and stable operation of the photovoltaic bracket system. Therefore, the resistivity-based nondestructive testing method for cement grouting anchor piles of flexible photovoltaic supports proposed in the present invention can improve the testing quality of cement grouting anchor piles of flexible photovoltaic supports.

[0136] like Figure 2 As shown, it is a system functional module diagram of the present invention based on the resistivity flexible photovoltaic support cement grouting anchor pile non-destructive testing.

[0137] The nondestructive testing system 200 of the cement grouting anchor pile based on resistivity flexible photovoltaic support described in the present invention can be installed in an electronic device. According to the functions implemented, the nondestructive testing system of the cement grouting anchor pile based on resistivity flexible photovoltaic support can include a pre-pregnancy data analysis module 201, a health level recognition module 202, a vital sign monitoring module 203, a human-computer interaction module 204, and a result output module 205. The module described in the present invention can also be referred to as a unit, which refers to a series of computer program segments that can be executed by an electronic device processor and can complete fixed functions, which are stored in the memory of the electronic device.

[0138] In the embodiment of the present invention, the functions of each module / unit are as follows:

[0139] The material analysis module 201 is used to obtain the cement grouting anchor pile to be tested, analyze the foundation conditions of the cement grouting anchor pile, identify the adjacent medium of the cement grouting anchor pile based on the foundation conditions, and analyze the medium properties of the adjacent medium;

[0140] The measurement preparation module 202 is used to analyze the grouting material characteristics and the anchor pile structure of the cement grouting anchor pile, identify the electrode type of the cement grouting anchor pile according to the medium properties and the grouting material characteristics, and determine the resistivity measurement equipment of the cement grouting anchor pile based on the foundation conditions and the anchor pile structure;

[0141] A current path analysis module 203 is used to identify the component structure of the cement grouting anchor pile, set the electrode layout points of the cement grouting anchor pile based on the component structure, and identify the current flow path of the resistivity measurement device according to the electrode type and the electrode layout points;

[0142] The resistivity measurement module 204 is used to calculate the resistivity of the cement grouting anchor pile according to the resistivity measurement device and the current flow path, classify the resistivity based on the composition structure to obtain classified resistivity, and identify the internal defects of the cement grouting anchor pile according to the classified resistivity;

[0143] The nondestructive testing module 205 is used to analyze the bonding strength between the cement grouting anchor pile and the adjacent medium based on the internal defects and the resistivity, and to perform nondestructive testing on the cement grouting anchor pile in combination with the resistivity and the bonding strength to generate a nondestructive testing result.

[0144] In detail, the modules in the resistivity-based flexible photovoltaic support cement grouting anchor pile nondestructive testing system 200 described in the embodiment of the present invention are used in the same manner as described above. Figure 1The technical means described in the non-destructive testing method of cement grouting anchor piles for flexible photovoltaic brackets based on resistivity is the same as that described in the non-destructive testing method of cement grouting anchor piles for flexible photovoltaic brackets based on resistivity, and can produce the same technical effects, so it will not be repeated here.

[0145] In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional modules.

[0146] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

Claims

1. A nondestructive testing method for cement grouting anchor piles of flexible photovoltaic brackets based on resistivity, characterized in that: The method comprises: Acquire a cement grouting anchor pile to be tested, analyze the foundation conditions of the cement grouting anchor pile, identify the adjacent medium of the cement grouting anchor pile based on the foundation conditions, and analyze the medium properties of the adjacent medium; Analyze the grouting material characteristics and the anchor pile structure of the cement grouting anchor pile, identify the electrode type of the cement grouting anchor pile according to the medium properties and the grouting material characteristics, and determine the resistivity measurement equipment of the cement grouting anchor pile based on the foundation conditions and the anchor pile structure; Identify the component structure of the cement grouting anchor pile, set the electrode layout points of the cement grouting anchor pile based on the component structure, and identify the current flow path of the resistivity measurement device according to the electrode type and the electrode layout points; Calculating the resistivity of the cement grouting anchor pile according to the resistivity measuring device and the current flow path, classifying the resistivity based on the composition structure to obtain classified resistivity, and identifying internal defects of the cement grouting anchor pile according to the classified resistivity; Based on the internal defects and the resistivity, the bonding strength between the cement grouting anchor pile and the adjacent medium is analyzed, and in combination with the resistivity and the bonding strength, nondestructive testing is performed on the cement grouting anchor pile to generate a nondestructive testing result.

2. The method according to claim 1, characterized in that The step of analyzing the medium properties of the adjacent medium based on the foundation conditions includes: Based on the foundation condition, identifying a medium type of the adjacent medium; Performing a physical property test on the medium type to obtain the physical properties of the medium; Conducting a water physical property test on the medium type to obtain the water physical characteristics of the medium; Conducting a mechanical property test on the medium type to obtain the medium mechanical properties; The medium properties of the adjacent medium are analyzed according to the medium physical properties, the medium hydraulic characteristics and the medium mechanical properties.

3. The method according to claim 1, characterized in that: The step of identifying the electrode type of the cement grouting anchor pile according to the medium property and the grouting material property includes: According to the medium properties and the grouting material characteristics, identifying the surrounding medium and the grouting body of the cement grouting anchor pile; Analyzing the electrical conductivity of the surrounding medium and the grouting body; extracting chemical components of the surrounding medium and the grouting body; Based on the chemical composition, analyzing the corrosion effect of the surrounding medium and the grouting body on the cement grouting anchor pile; Selecting the electrode material of the cement grouting anchor pile according to the conductive property and the corrosion effect; Based on the electrode material, the electrode type of the cement grouting anchor pile is identified.

4. The method according to claim 1, characterized in that: The electrode arrangement points of the cement grouting anchor piles are set based on the composition structure, including: Identifying an anchor pile area of ​​the cement grouting anchor pile; Locating the enlarged head position, free section position and anchoring section position of the anchor pile area; Identify the center axis and fixed steel bars of the enlarged head position; According to the central axis, a resistivity measurement line of the anchor pile area is extracted; Based on the resistivity measurement line, locating the electrode position of the fixed steel bar; The electrode arrangement point of the cement grouting anchor pile is set in combination with the enlarged head position, the free section position, the anchor section position and the electrode position.

5. The method according to claim 1, characterized in that The step of identifying a current flow path of the resistivity measurement device according to the electrode type and the electrode arrangement point comprises: Analyzing the arrangement of the electrode arrangement points according to the electrode type; Based on the arrangement, identifying current injection points and potential measurement points of the electrode arrangement points; determining a current flow channel of the resistivity measurement device according to the current injection point and the potential measurement point; Based on the current flow channel and the potential measurement point, a current flow path of the resistivity measurement device is identified.

6. The method according to claim 1, characterized in that The resistivity measuring device and the current flow path calculate the resistivity of the cement grouting anchor pile, including: Based on the current flow path, identifying the anchor pile body of the cement grouting anchor pile; Extracting the cross-sectional area of ​​the anchor pile body; According to the resistivity measuring device, identifying the electrode configuration of the cement grouting anchor pile; Based on the electrode configuration, determining the electrode spacing of the cement grouting anchor pile; identifying current parameters of the cement grouting anchor pile according to the resistivity measuring device and the current flow path; Identifying potential electrodes in the current flow path, and determining voltage parameters of the cement grouting anchor pile based on the potential electrodes; The resistivity of the cement grouting anchor pile is calculated according to the cross-sectional area, the pile length, the current parameter, the voltage parameter and the electrode spacing.

7. The method according to claim 1, characterized in that The step of identifying internal defects of the cement grouting anchor pile according to the classified resistivity comprises: According to the classified resistivity, identifying the resistivity measurement point of the cement grouting anchor pile; Collecting historical resistivity data of the resistivity measurement point, and setting an abnormality judgment baseline of the classified resistivity according to the historical resistivity data; identifying an abnormal resistivity value of the classified resistivity according to the abnormality judgment baseline; Based on the resistivity measurement points, analyzing the causes of the abnormal resistivity values; According to the formation causes and the resistivity measurement points, internal defects of the cement grouting anchor pile are identified.

8. The method according to claim 1, characterized in that The analyzing the bonding strength between the cement grouting anchor pile and the adjacent medium based on the internal defects and the resistivity includes: acquiring a resistivity image of the resistivity; According to the resistivity image, identifying the distribution of the resistivity; Based on the distribution, identifying the slurry filling area of ​​the cement grouting anchor pile; Analyzing the opening state of the enlarged head of the cement grouting anchor pile according to the slurry filling area; Based on the internal defects and the opening state of the enlarged head, identifying the slurry density of the cement grouting anchor pile; The bonding strength between the cement grouting anchor pile and the adjacent medium is analyzed according to the slurry density.

9. The method according to claim 1, characterized in that: The step of combining the resistivity and the bonding strength to perform nondestructive testing on the cement grouting anchor pile and generating a nondestructive testing result includes: Calculating a correlation coefficient between the resistivity and the bonding strength; Determine the key features of the cement grouting anchor pile in non-destructive testing according to the correlation coefficient, and extract the dimension reduction features of the key features; Based on the dimension reduction feature, the resistivity and the bonding strength, non-destructive testing is performed on the cement grouting anchor pile to obtain a testing conclusion; Calculating an error factor of the detection conclusion; A nondestructive testing result is generated according to the error factor and the testing conclusion.

10. A nondestructive testing system for cement grouting anchor piles based on resistivity flexible photovoltaic support, the system implements the method as claimed in claim 1, characterized in that: The system comprises: A material analysis module, used to obtain the cement grouting anchor pile to be tested, and analyze the foundation conditions of the cement grouting anchor pile, based on the foundation conditions, identify the adjacent medium of the cement grouting anchor pile, and analyze the medium properties of the adjacent medium; A measurement preparation module, used for analyzing the grouting material characteristics and the anchor pile structure of the cement grouting anchor pile, identifying the electrode type of the cement grouting anchor pile according to the medium properties and the grouting material characteristics, and determining the resistivity measurement equipment of the cement grouting anchor pile based on the foundation conditions and the anchor pile structure; A current path analysis module, used to identify the component structure of the cement grouting anchor pile, set the electrode layout points of the cement grouting anchor pile based on the component structure, and identify the current flow path of the resistivity measurement device according to the electrode type and the electrode layout points; a resistivity measurement module, configured to calculate the resistivity of the cement grouting anchor pile according to the resistivity measurement device and the current flow path, classify the resistivity based on the composition structure to obtain a classified resistivity, and identify internal defects of the cement grouting anchor pile according to the classified resistivity; The nondestructive testing module is used to analyze the bonding strength between the cement grouting anchor pile and the adjacent medium based on the internal defects and the resistivity, and to perform nondestructive testing on the cement grouting anchor pile in combination with the resistivity and the bonding strength to generate a nondestructive testing result.

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