A soil-structure interface measurement device and method based on data analysis

Abstract

The present invention provides a soil-structure interface determination device and method based on data analysis, belonging to the technical field of soil monitoring, and specifically comprising: dividing an anchor foundation into different stress measurement areas, and determining the number of stress measurement nodes in the stress measurement area based on distribution data of anchor foundations of different accuracy requirement types in the stress measurement area, determining the measurement position of the stress measurement area according to the number of stress measurement nodes, obtaining data changes of different measurement positions in different types of monitoring fields, and when the deviation of the data changes between different measurement positions meets the requirements, determining the analysis measurement result of the soil-structure interface stress of the anchor foundation based on the distance between the different measurement positions and the anchor foundation and utilizing the data changes of different measurement positions in different types of monitoring fields, thereby ensuring the accuracy of the measurement result of the soil-structure interface stress.

Description

Technical Field

[0001] The present invention belongs to the technical field of soil monitoring, and in particular relates to a soil-structure interface measurement device and method based on data analysis. Background Art

[0002] Anchor foundations such as compression piles and pull-out piles, i.e. structures, are common building foundation forms in geotechnical engineering, and have the advantages of strong bearing capacity and good stability. In order to reveal the friction behavior of the interface between soil and anchor foundation, in the invention patent application CN201811511446.5 "A database system for energy data acquisition and analysis and data storage method", the consolidation of soil samples in the foundation pit before foundation pit excavation is simulated to reduce the influence of soil sample disturbance, thereby improving the precision and accuracy of soil sample detection. However, it is not difficult to find the following technical problems through analysis:

[0003] The interfacial stress between soil and structure is affected by many factors, such as soil basic properties, structure material, load mode and temperature transfer. Therefore, simply considering one factor cannot accurately measure the interfacial stress between soil and structure.

[0004] In view of the above technical problems, the present invention provides a device and method for measuring the interface between soil and structure based on data analysis. Summary of the invention

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] In order to solve the above technical problems, the present invention provides a method for determining the interface between soil and structure based on data analysis, which specifically includes:

[0007] S1 determines the bearing capacity of different anchor foundations, and determines the accuracy requirement type of stress measurement of different anchor foundations in combination with the setting data of different anchor foundations and soil types;

[0008] S2: dividing the anchor foundation into different stress measurement areas, and determining the number of stress measurement nodes in the stress measurement area based on the distribution data of the anchor foundations of different accuracy requirement types in the stress measurement area;

[0009] S3 determines the measurement position of the stress measurement area according to the number of stress measurement nodes, obtains the data change of different measurement positions in different types of monitoring fields, and proceeds to the next step when the deviation of the data change between different measurement positions meets the requirements;

[0010] S4 determines the analytical measurement results of the soil-structure interface stress of the anchor foundation based on the distances between different measurement positions and the anchor foundation and utilizing the data changes of different measurement positions in different types of monitoring fields.

[0011] A further technical solution is that the anchor foundation includes compression piles and pull-out piles.

[0012] A further technical solution is that the bearing capacity of the anchor foundation is determined based on design data of the anchor foundation.

[0013] A further technical solution is that the setting data of the anchor foundation includes the setting depth and cross-sectional area of ​​the anchor foundation.

[0014] A further technical solution is that the method for determining the type of accuracy requirement for stress measurement of the anchor foundation is:

[0015] Determine the setting depth and cross-sectional area of ​​the anchor foundation using the setting data of the anchor foundation, and determine the historical similar anchor foundations of the anchor foundation and the basic data similarity coefficient based on the setting depth and cross-sectional area;

[0016] Determine the estimated bearing capacity of the anchor foundation based on the bearing capacity of different historical similar anchor foundations under the soil type and the similarity coefficient of basic data;

[0017] The accuracy requirement type of the stress measurement of the anchor foundation is determined based on the deviation between the inferred bearing capacity and the bearing capacity.

[0018] A further technical solution is that the accuracy requirement types of the stress measurement of the anchor foundation include attention type, monitoring type and general type.

[0019] A further technical solution is that the method for determining the analytical measurement result of the interface stress between the soil and the structure of the anchor foundation is:

[0020] Based on the data changes of different measurement positions in different types of monitoring fields, the preset data model is used to determine the measurement results of the soil-structure interface stress of the anchor foundation at different measurement positions;

[0021] The accuracy weight values ​​of the measurement results at different measurement positions are determined according to the distances between different measurement positions and the anchor foundation, and the measurement results of the soil-structure interface stress of the anchor foundation are obtained through the accuracy weight values ​​of the measurement results at different measurement positions and the analytical measurement results of the soil-structure interface stress.

[0022] On the other hand, the present application provides a soil-structure interface measurement device based on data analysis, which is applied to the above-mentioned soil-structure interface measurement method based on data analysis, specifically comprising:

[0023] Sample loading system, simulation control system, data acquisition system, gas-water conversion system, water bath temperature control system and servo hydraulic power system.

[0024] A further technical solution is that the sample loading system includes a pressure chamber, a structural soil sample, a water bath spiral pipeline, a soil top cover and a sealing device, a soil perforated base, a pile bottom sealing device, a temperature sensor, a stress sensor, a torque sensor, a displacement sensor and a pore pressure sensor.

[0025] The beneficial effects of the present invention are:

[0026] 1. (1) Precise control of undrained state; (2) Diversified loading methods; (3) Calibration of interface pore pressure; (4) Simple assembly, disassembly and testing process; (5) Able to realize temperature field change tests such as interface freeze-thaw cycle, interface undrained heating and cooling.

[0027] 2. In the present invention, based on the distances between different measuring positions and the anchor foundation, the data changes of different measuring positions in different types of monitoring fields are used to determine the analytical measurement results of the soil-structure interface stress of the anchor foundation, and the deviation in the consistency between the soil-structure interface stress and the measurement results of the anchor foundation caused by the inconsistent distances between different measuring positions and the anchor foundation is fully considered, thereby realizing the analytical measurement results of the soil-structure interface stress of the anchor foundation from multiple measuring positions, and ensuring the accuracy of the measurement results of the soil-structure interface stress of the anchor foundation.

[0028] 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.

[0029] 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

[0030] 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.

[0031] Figure 1 It is a flow chart of a method for determining the interface between soil and structure based on data analysis;

[0032] Figure 2A flow chart of a method for determining the type of accuracy requirement for stress measurement of an anchor foundation;

[0033] Figure 3 is a flow chart of a method for determining the number of stress measurement nodes in a stress measurement area;

[0034] Figure 4 It is a flow chart of a method for determining analytical measurement results of soil-structure interface stress of an anchor foundation. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] Example 1

[0038] To solve the above problems, according to one aspect of the present invention, Figure 1 As shown, according to one aspect of the present invention, a method for determining the interface between soil and structure based on data analysis is provided, which specifically includes:

[0039] S1 determines the bearing capacity of different anchor foundations, and determines the accuracy requirement type of stress measurement of different anchor foundations in combination with the setting data of different anchor foundations and soil types;

[0040] S2: dividing the anchor foundation into different stress measurement areas, and determining the number of stress measurement nodes in the stress measurement area based on the distribution data of the anchor foundations of different accuracy requirement types in the stress measurement area;

[0041] S3 determines the measurement position of the stress measurement area according to the number of stress measurement nodes, obtains the data change of different measurement positions in different types of monitoring fields, and proceeds to the next step when the deviation of the data change between different measurement positions meets the requirements;

[0042] S4 determines the analytical measurement results of the soil-structure interface stress of the anchor foundation based on the distances between different measurement positions and the anchor foundation and utilizing the data changes of different measurement positions in different types of monitoring fields.

[0043] Furthermore, the anchor foundation includes compression piles and pull-out piles.

[0044] Specifically, the bearing capacity of the anchor foundation is determined according to the design data of the anchor foundation.

[0045] It can be understood that the setting data of the anchor foundation includes the setting depth and cross-sectional area of ​​the anchor foundation.

[0046] It should be noted that if Figure 2 As shown, the method for determining the type of accuracy requirement for stress measurement of the anchor foundation is:

[0047] Determine the setting depth and cross-sectional area of ​​the anchor foundation using the setting data of the anchor foundation, and determine the historical similar anchor foundations of the anchor foundation and the basic data similarity coefficient based on the setting depth and cross-sectional area;

[0048] Determine the estimated bearing capacity of the anchor foundation based on the bearing capacity of different historical similar anchor foundations under the soil type and the similarity coefficient of basic data;

[0049] The accuracy requirement type of the stress measurement of the anchor foundation is determined based on the deviation between the inferred bearing capacity and the bearing capacity.

[0050] Furthermore, the accuracy requirement types of the stress measurement of the anchor foundation include attention type, monitoring type and general type.

[0051] Specifically, determining the accuracy requirement type of the stress measurement of the anchor foundation based on the deviation between the estimated bearing capacity and the bearing capacity specifically includes:

[0052] When the estimated bearing capacity is less than the bearing capacity: determining the accuracy requirement type of the stress measurement of the anchor foundation to be a caution type;

[0053] When the estimated bearing capacity is not less than the bearing capacity:

[0054] When the deviation between the estimated bearing capacity and the bearing capacity is within a preset deviation range, determining that the accuracy requirement type of the stress measurement of the anchor foundation is a monitoring type;

[0055] When the deviation between the inferred bearing capacity and the bearing capacity is not within the preset deviation range, it is determined that the accuracy requirement type of the stress measurement of the anchor foundation is a general type.

[0056] In another embodiment, the method for determining the type of accuracy requirement for stress measurement of the anchor foundation includes steps S11-S13, specifically:

[0057] S11 determines the setting depth and cross-sectional area of ​​the anchor foundation using the setting data of the anchor foundation, and determines the historical similar anchor foundation and basic data similarity coefficient of the anchor foundation based on the setting depth and cross-sectional area;

[0058] Optionally, the above step S11 includes steps S111-S112, which are specifically:

[0059] S111 determines the setting depth and cross-sectional area of ​​the anchor foundation using the setting data of the anchor foundation, and determines whether the anchor foundation has a historically similar anchor foundation based on the setting depth and cross-sectional area, if so, proceeds to the next step, if not, determines that the accuracy requirement type of the stress measurement of the anchor foundation is a caution type;

[0060] S112 determines the historical similarity coefficient of the anchor foundation according to the number of the historically similar anchor foundations and the basic data similarity coefficients of different historically similar anchor foundations, and judges whether the historical similarity coefficient of the anchor foundation meets the requirements. If so, enters step S12; if not, determines that the accuracy requirement type of the stress measurement of the anchor foundation is the attention type.

[0061] S12 takes the bearing capacity of different historically similar anchor foundations in the soil type as the reference bearing capacity;

[0062] Optionally, the above step S12 includes steps S121-S123, specifically:

[0063] S121 uses the bearing capacity of different historical similar anchor foundations under the soil type as a reference bearing capacity, and determines whether there is a historical similar anchor foundation with a reference bearing capacity less than the bearing capacity, if so, proceeds to the next step, if not, proceeds to the step;

[0064] S122: taking a historical similar anchor foundation whose reference bearing capacity is less than the bearing capacity as a bearing capacity deviation anchor foundation, and judging whether there is a bearing capacity deviation anchor foundation whose deviation from the bearing capacity does not meet the requirement, if not, proceeding to the next step, if yes, determining that the accuracy requirement type of the stress measurement of the anchor foundation is a caution type;

[0065] S123 determines whether the number of bearing capacity deviation anchor foundations meets the requirement. If so, proceed to step S13. If not, determine that the accuracy requirement type of the stress measurement of the anchor foundation is a caution type.

[0066] S13 determines the estimated bearing capacity of the anchor foundation using reference bearing capacities of different historically similar anchor foundations and basic data similarity coefficients, and determines the accuracy requirement type of stress measurement of the anchor foundation based on the deviation between the estimated bearing capacity and the bearing capacity.

[0067] Furthermore, the anchor foundation is divided into different stress measurement areas, specifically including:

[0068] The anchor foundation is divided into different stress measurement areas using a preset number of anchor foundations.

[0069] It should be noted that if Figure 3 As shown, the method for determining the number of stress measurement nodes in the stress measurement area is:

[0070] Determine the spacing between different adjacent anchor foundations in the stress measurement area using the distribution data of the anchor foundations in the stress measurement area, and determine the number of foundation settings for stress measurement nodes in the stress measurement area in combination with the number of anchor foundations in the stress measurement area;

[0071] Determine the required number of stress measurement nodes with different accuracy requirements based on the number of anchor foundations with different accuracy requirements and the distances between the anchor foundations;

[0072] The number of stress measurement nodes in the stress measurement area is determined by the sum of the basic setting number and the required number of stress measurement nodes of different accuracy requirement types.

[0073] It can be understood that the method for determining the required number of stress measurement nodes is:

[0074] Determine the foundation requirement quantity under the number of anchor foundations according to the number of anchor foundations of the required type with the accuracy requirement;

[0075] Determining a required quantity compensation coefficient for the accuracy requirement type based on the distance between the anchor foundations;

[0076] The required quantity of the stress measurement node is determined by multiplying the required quantity compensation coefficient by the basic required quantity.

[0077] In another embodiment, the method for determining the number of stress measurement nodes in the stress measurement area includes steps S21-S22, specifically:

[0078] S21 obtains the number of anchor foundations in the stress measurement area;

[0079] S22 determines the number of foundation settings of stress measurement nodes in the stress measurement area according to the spacing distances between different adjacent anchor foundations in the stress measurement area and the number of anchor foundations in the stress measurement area, determines the required number of stress measurement nodes with different accuracy requirements according to the number of anchor foundations with different accuracy requirements and the distances between the anchor foundations, and determines the number of stress measurement nodes in the stress measurement area by the sum of the number of foundation settings and the required number of stress measurement nodes with different accuracy requirements.

[0080] It can be understood that the method for determining the measurement position of the stress measurement area is:

[0081] Determining the measurement position of the stress measurement area according to the number of stress measurement nodes;

[0082] The measurement position of the stress measurement area is determined based on the number of stress measurement nodes and the same distances between different adjacent stress measurement nodes.

[0083] Furthermore, the monitoring fields include temperature field, stress field, displacement field and seepage field.

[0084] Specifically, it is determined that the deviation of the data variation between different measurement positions meets the requirements, including:

[0085] Determine the data variation coefficient between different measurement locations based on the data variation of different measurement locations in different types of monitoring fields;

[0086] Determine the data variation deviation coefficient between the different measurement positions and the remaining other measurement positions by using the data variation deviation coefficient between the different measurement positions, and determine the measurement result reliability coefficient of the different measurement positions according to the data variation deviation coefficient between the different measurement positions and the remaining other measurement positions;

[0087] The reliability of the measurement result is determined according to the average value of the reliability coefficients of the measurement results at different measurement positions, and the reliability of the measurement result is used to determine whether the deviation of the data variation between the different measurement positions meets the requirements.

[0088] Further, when the reliability of the measurement result is less than a preset reliability threshold, it is determined that the deviation of the data variation between different measurement positions does not meet the requirement.

[0089] It should also be noted that when the deviation of the data variation between different measurement positions does not meet the requirements, the stress measurement nodes at different measurement positions are used to continue the measurement.

[0090] It can be understood that determining whether the deviation of the data variation between different measurement positions meets the requirements specifically includes steps S31-S33, specifically:

[0091] S31 determines the data variation deviation coefficient between different measurement locations based on the data variation of different measurement locations in different types of monitoring fields;

[0092] Optionally, the above step S31 includes:

[0093] The data variation deviation coefficients between different measurement locations are determined based on the data variation conditions of different measurement locations in different types of monitoring fields, and it is determined whether the average value of the data variation deviation coefficients between different measurement locations meets the requirements. If so, proceed to the next step; if not, it is determined that the deviations of the data variation conditions between different measurement locations do not meet the requirements.

[0094] S32: taking the measurement positions whose data variation deviation coefficients do not meet the requirements with the remaining measurement positions as deviation measurement positions, determining the data variation deviation coefficients between the different measurement positions and the remaining measurement positions by using the data variation deviation coefficients between the different measurement positions, and determining the measurement result reliability coefficients of the different measurement positions according to the data variation deviation coefficients between the different measurement positions and the remaining measurement positions;

[0095] Optionally, the above step S32 includes steps S321-S323, specifically:

[0096] S321 determines whether there is a measurement position whose data variation deviation coefficient does not meet the requirements with the remaining other measurement positions. If yes, proceed to the next step; if not, proceed to step S33;

[0097] S322: taking the measurement positions whose data change deviation coefficients do not meet the requirements with the remaining measurement positions as deviation measurement positions, and judging whether the number of the deviation measurement positions meets the requirements; if so, proceeding to the next step; if not, determining that the deviations of the data change conditions between different measurement positions do not meet the requirements;

[0098] S323 determines the data variation deviation coefficient between different measurement positions and the remaining other measurement positions by using the data variation deviation coefficient between different measurement positions, and determines the measurement result reliability coefficient of different measurement positions according to the data variation deviation coefficient between the remaining other measurement positions, and judges whether the number of measurement positions whose measurement result reliability coefficient is less than the preset reliability coefficient meets the requirement, if so, proceeds to step S33, if not, determines that the deviation of the data variation between different measurement positions does not meet the requirement;

[0099] S33 determines the reliability of the measurement result according to the average value of the reliability coefficients of the measurement results at different measurement positions, and uses the reliability of the measurement result to determine whether the deviation of the data variation between the different measurement positions meets the requirements.

[0100] Specifically, Figure 4 As shown, the method for determining the analytical measurement results of the soil-structure interface stress of the anchor foundation is:

[0101] Based on the data changes of different measurement positions in different types of monitoring fields, the preset data model is used to determine the measurement results of the soil-structure interface stress of the anchor foundation at different measurement positions;

[0102] The accuracy weight values ​​of the measurement results at different measurement positions are determined according to the distances between different measurement positions and the anchor foundation, and the measurement results of the soil-structure interface stress of the anchor foundation are obtained through the accuracy weight values ​​of the measurement results at different measurement positions and the analytical measurement results of the soil-structure interface stress.

[0103] Example 2

[0104] On the other hand, the present application provides a soil-structure interface measurement device based on data analysis, which is applied to the above-mentioned soil-structure interface measurement method based on data analysis, specifically comprising:

[0105] Sample loading system, simulation control system, data acquisition system, gas-water conversion system, water bath temperature control system and servo hydraulic power system.

[0106] A further technical solution is that the sample loading system includes a pressure chamber, a structural soil sample, a water bath spiral pipeline, a soil top cover and a sealing device, a soil perforated base, a pile bottom sealing device, a temperature sensor, a stress sensor, a torque sensor, a displacement sensor and a pore pressure sensor.

[0107] A further technical solution is that the simulation control system is used to apply a specific load action form above the soil sample of the structure.

[0108] A further technical solution is that the data acquisition system is connected to temperature, stress, torque, displacement and pore pressure sensors to monitor the changing patterns of temperature field, stress field, displacement field and seepage field of the soil and structure system in real time.

[0109] A further technical solution is that the gas-water conversion system is used to provide confining pressure, back pressure and vacuum negative pressure to the soil sample containing the structure.

[0110] A further technical solution is that the water bath temperature control system is used to continuously provide a fluid of a constant temperature to the pressure chamber, thereby achieving temperature control of the soil sample containing the structure.

[0111] A further technical solution is that the servo hydraulic power system can provide hydraulic source power for the sample loading system, so as to facilitate the application of complex stress paths such as axial load and annular torque at the interface between soil and structure.

[0112] Optionally, the above step S21 includes steps S211-S214, specifically:

[0113] S211: obtaining the number of anchor foundations in the stress measurement area, and determining whether the number of anchor foundations in the stress measurement area is greater than a preset number of foundations. If so, proceeding to the next step; if not, proceeding to step S22;

[0114] S212: using the distribution data of the anchor foundations in the stress measurement area to determine the intervals between different adjacent anchor foundations in the stress measurement area, and judging whether the average of the intervals between different adjacent anchor foundations is greater than a preset interval, if so, determining the number of stress measurement nodes in the stress measurement area using a preset number of nodes, if not, proceeding to the next step;

[0115] S213 determines whether the number of anchor foundations of a preset accuracy requirement type is greater than a preset number threshold, if so, determines the number of stress measurement nodes in the stress measurement area using the preset number of nodes, if not, proceeds to the next step;

[0116] S214 determines the measurement accuracy requirement coefficient of the preset accuracy requirement type based on the number of anchor foundations of the preset accuracy requirement type and the distance between the anchor foundations, and determines whether the measurement accuracy requirement coefficient is greater than the preset coefficient threshold. If so, the number of stress measurement nodes in the stress measurement area is determined using the preset number of nodes. If not, enter step S22.

[0117] 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.

[0118] 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.

[0119] 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. A method for determining the interface between soil and structure based on data analysis, characterized in that: Specifically include: Determine the bearing capacity of different anchor foundations, and determine the accuracy requirements for stress measurement of different anchor foundations based on different anchor foundation setting data and soil types; Dividing the anchor foundation into different stress measurement areas, and determining the number of stress measurement nodes in the stress measurement area based on distribution data of anchor foundations of different accuracy requirement types in the stress measurement area; Determine the measurement position of the stress measurement area according to the number of stress measurement nodes, obtain the data change of different measurement positions in different types of monitoring fields, and proceed to the next step when the deviation of the data change between different measurement positions meets the requirements; Based on the distances between different measurement positions and the anchor foundation, the analysis and measurement results of the soil-structure interface stress of the anchor foundation are determined by utilizing the data changes of different measurement positions in different types of monitoring fields; The method for determining the analytical measurement results of the soil-structure interface stress of the anchor foundation is: Based on the data changes of different measurement positions in different types of monitoring fields, the preset data model is used to determine the measurement results of the soil-structure interface stress of the anchor foundation at different measurement positions; The accuracy weight values ​​of the measurement results at different measurement positions are determined according to the distances between different measurement positions and the anchor foundation, and the analytical measurement results of the soil-structure interface stress of the anchor foundation are obtained through the accuracy weight values ​​of the measurement results at different measurement positions and the analytical measurement results of the soil-structure interface stress.

2. The method for determining the interface between soil and structure based on data analysis according to claim 1, characterized in that: The anchor foundation includes compression piles and pull-out piles.

3. The method for determining the interface between soil and structure based on data analysis according to claim 1, characterized in that: The bearing capacity of the anchor foundation is determined based on the design data of the anchor foundation.

4. The method for determining the interface between soil and structure based on data analysis according to claim 1, characterized in that: The method for determining the type of accuracy requirement for stress measurement of the anchor foundation is: Determine the setting depth and cross-sectional area of ​​the anchor foundation using the setting data of the anchor foundation, and determine the historical similar anchor foundations of the anchor foundation and the basic data similarity coefficient based on the setting depth and cross-sectional area; Determine the estimated bearing capacity of the anchor foundation based on the bearing capacity of different historical similar anchor foundations under the soil type and the similarity coefficient of basic data; The accuracy requirement type of the stress measurement of the anchor foundation is determined based on the deviation between the inferred bearing capacity and the bearing capacity.

5. The method for determining the interface between soil and structure based on data analysis according to claim 4, characterized in that: The accuracy requirement types of stress measurement of the anchor foundation include attention type, monitoring type and general type.

6. The method for determining the interface between soil and structure based on data analysis according to claim 1, characterized in that: The anchor foundation is divided into different stress measurement areas, specifically including: The anchor foundation is divided into different stress measurement areas using a preset number of anchor foundations.

7. The method for determining the interface between soil and structure based on data analysis according to claim 1, characterized in that: The method for determining the number of stress measurement nodes in the stress measurement area is: Determine the spacing between different adjacent anchor foundations in the stress measurement area using the distribution data of the anchor foundations in the stress measurement area, and determine the number of foundation settings of stress measurement nodes in the stress measurement area in combination with the number of anchor foundations in the stress measurement area; Determine the required number of stress measurement nodes with different accuracy requirements based on the number of anchor foundations with different accuracy requirements and the distances between the anchor foundations; The number of stress measurement nodes in the stress measurement area is determined by the sum of the basic setting number and the required number of stress measurement nodes of different accuracy requirement types.

8. The method for determining the interface between soil and structure based on data analysis according to claim 7, characterized in that: The method for determining the required number of stress measurement nodes is: Determine the foundation requirement quantity under the number of anchor foundations according to the number of anchor foundations of the required type with the accuracy requirement; Determining a required quantity compensation coefficient for the accuracy requirement type based on the distance between the anchor foundations; The required quantity of the stress measurement node is determined by multiplying the required quantity compensation coefficient by the basic required quantity.

9. A soil-structure interface measurement device based on data analysis, applied to a soil-structure interface measurement method based on data analysis as claimed in any one of claims 1 to 8, characterized in that: Specifically include: Sample loading system, simulation control system, data acquisition system, gas-water conversion system, water bath temperature control system and servo hydraulic power system.

10. The soil-structure interface measuring device according to claim 9, characterized in that: The method for determining the measurement position of the stress measurement area is: The sample loading system includes a pressure chamber, a structural soil sample, a water bath spiral pipeline, a soil top cover and a sealing device, a soil perforated base, a pile bottom sealing device, a temperature sensor, a stress sensor, a torque sensor, a displacement sensor and a pore pressure sensor.

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