Civil engineering pile foundation hole detection method

Abstract

The invention discloses a civil engineering pile foundation hole detection method, and relates to the technical field of civil engineering detection, a data measuring and recording module is used for measuring and recording relevant parameters of the hole diameter, the hole depth and the gradient of a pile foundation hole in real time, and a quality evaluation module is used for substituting the relevant parameters for calculation and outputting to obtain the hole diameter deviation percentage Kpc; the comprehensive quality index Z and the circulation influence evaluation value XHY are compared with historical parameters, the current construction quality of the pile foundation hole is obtained through detection and evaluation according to the comprehensive quality index Z and the circulation influence evaluation value XHY, it is confirmed that the construction quality of the current hole is qualified, and subsequent pile foundation hole construction is conducted. And accurate measurement and comprehensive analysis of a plurality of parameters of the pile foundation hole are realized, so that the quality of the pile foundation hole is evaluated more accurately.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering detection, in particular to a method for detecting pile foundation holes in civil engineering. Background Art

[0002] In civil engineering construction, the pile foundation hole is a key part that bears the weight of buildings or structures. Its construction quality is directly related to the stability and safety of the entire structure. The construction process of the pile foundation hole is complicated and involves multiple parameters, such as hole diameter, hole depth, and inclination. Precise control of these parameters is crucial to ensure the bearing capacity and durability of the pile foundation.

[0003] Traditional detection methods are limited by measuring tools and means, and can often only make rough estimates of hole diameter and hole depth parameters, and cannot be accurate to millimeters or even smaller units. This lack of accuracy will cause problems in the pile foundation hole during the load-bearing process, affecting the safety of the entire structure, and the results of manual measurement and judgment are often affected by the subjective factors of the measurer. This subjectivity will cause different conclusions to be drawn by different measurers for the same pile foundation hole, thereby increasing the uncertainty of the evaluation results. In addition, existing technologies often lack a complete evaluation system and cannot combine multiple parameters for overall evaluation, which leads to the evaluation results only reflecting the quality of one aspect of the pile foundation hole, while ignoring potential problems in other aspects. In addition, in the case of continuous construction, the construction of the current hole will be affected by the construction results of the previous hole. However, existing technologies often ignore this point and do not include the cyclic impact in the evaluation scope, which leads to quality problems in subsequent construction, affecting the progress and quality of the entire project. Summary of the invention

[0004] The purpose of the present invention is to provide a method for detecting pile foundation holes in civil engineering, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution, and the specific detection steps are as follows: Use the data measurement and recording module to measure and record the relevant parameters of the pile foundation hole diameter, hole depth and inclination in real time; Using the quality assessment module, the relevant parameters are substituted into the calculation and output to obtain the aperture deviation percentage K pc , comprehensive quality index Z and cycle impact assessment value XHY; And based on the comparison of the comprehensive quality index Z and the cyclic impact assessment value XHY with the historical parameters, the current construction quality of the pile foundation hole is detected and evaluated; After confirming that the current hole construction quality is qualified, the subsequent pile foundation hole construction should be carried out; The quality assessment module includes a pile foundation hole quality assessment unit, a comprehensive quality assessment unit and a circulation impact assessment unit; The equipment used in the data measurement and recording module includes a caliper, a depth meter, an inclinometer and a data recording device, wherein the caliper is used to measure the actual hole diameter of the pile foundation hole, the depth meter is used to measure the actual hole depth of the pile foundation hole, the inclinometer is used to measure the inclination of the pile foundation hole, and the data recording device is used to record the measurement data; The equipment used in the quality assessment module includes a computing tool and a data acquisition and processing system. The computing tool is used to execute formula calculations, and the data acquisition and processing system is used to perform preliminary analysis and processing on data.

[0006] Optionally, the calculation formula of the pile foundation hole quality assessment unit is as follows: ; in: K pc is the aperture deviation percentage; K actual is the actual measured aperture value; K design The aperture value required for design.

[0007] Optionally, the calculation formula of the comprehensive quality assessment unit is as follows: ; S pc =[(S actual -S design ) / S design ] 2 ; X pc =(X actual / X max ) 2 ; in: Z is the comprehensive quality index; S pc is the hole depth deviation value; S actual is the actual measured hole depth value; S design The hole depth value required by the design; X pc is the inclination deviation value; X actual To actually measure the inclination; X max The maximum designed inclination.

[0008] Optionally, the calculation formula of the circulation impact assessment unit is as follows: XHY=[Z+a*Z prev +(b*(10-PF))] / (1+a+b); PF=(T1+T2+T3+T4) / 4; in: XHY is the cycle impact assessment value; Z prev is the comprehensive quality index of the previous hole; PF is the current hole geological condition score; T1 is the bearing capacity score, T2 is the groundwater level score, T3 is the rock distribution score, and T4 is the soil stability score; The soil bearing capacity tester detects that the current soil bearing capacity is 9-10 points higher than the soil bearing capacity of the previous hole, 5-7 points for medium, and 0-4 points for low. The groundwater automatic monitoring and reporting system detects that the current water level is 9-10 points lower than the water level of the previous hole, 5-7 points in the middle, and 0-4 points in the high; The distribution of the current rock layer detected by geological radar is 9-10 points higher than that of the previous hole, 5-7 points in the middle, and 0-4 points in the low. The soil compression tester detects the stability of the current soil compared with the previous hole. The high score is 9-10, the medium score is 5-7, and the low score is 0-4. a and b are weight coefficients, which are used to adjust the comprehensive quality index Z of the previous hole. prev And the degree of influence of the current hole geological condition score value PF on the circulation impact assessment value XHY.

[0009] Optionally, the comprehensive detection and evaluation steps based on the comprehensive quality evaluation unit and the circulation impact evaluation unit are as follows: S1. Extract the previous hole cycle impact assessment value XHY from the data measurement and recording module prev ; S2. If the comprehensive quality index Z is higher than the comprehensive quality index Z of the previous hole prev , and the cycle impact assessment value XHY is higher than the cycle impact assessment value XHY of the previous hole prev , it indicates that the construction quality of the current hole is significantly lower than that of the previous hole. When the construction process of the previous hole and the current hole is comprehensively checked, the construction plan is adjusted and the construction parameters are optimized; S3. If the comprehensive quality index Z is equal to the comprehensive quality index Z of the previous hole prev , and the cycle impact assessment value XHY is equal to the cycle impact assessment value XHY of the previous hole prev , it indicates that the construction quality of the current hole is stable, and the current construction status and management measures should be kept unchanged; S4. If the comprehensive quality index Z is lower than the comprehensive quality index Z of the previous hole prev , and the cycle impact assessment value XHY is lower than the cycle impact assessment value XHY of the previous hole prev, it indicates that the construction quality of the current hole has been significantly improved compared with the previous hole, and the construction quality of the previous hole has been abnormally overestimated. The current geological conditions and construction conditions have little effect on the hole quality, and the construction quality data of the previous hole should be reviewed.

[0010] Optionally, the measures affecting the adjustment after the comprehensive testing and evaluation are as follows; If the test result is as S2, the engineer should take a series of measures to improve the construction, including replacing the drill bit, adjusting the mud formula, and optimizing the drilling parameters. The implementation of the above measures directly affects the measurement results of the hole diameter deviation, and then adjust the relevant values ​​in the pile foundation hole quality assessment unit; If the test results are as shown in S3 and S4, the engineer should keep the current construction status and management measures unchanged, and there is little need to adjust the values ​​in the pile foundation hole quality assessment unit.

[0011] Optionally, the current hole geological condition score PF is used to quantify the complexity of geological conditions and the degree of influence on pile foundation hole construction, and the current hole geological condition score PF is specifically scored in the range of 0-10; 0 points: The surface geological conditions are simple and have little impact on the construction of pile foundation holes; 10 points: The surface geological conditions are extremely complex, which poses great challenges and risks to the construction of pile foundation holes; The middle value in the range of 0-10 points is scored based on the actual geological conditions. The higher the score, the more complex the surface geological conditions, and the greater the construction difficulty and risk.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes accurate measurement and calculation of pile foundation hole parameters by introducing high-precision measuring equipment and advanced mathematical models, namely, the aperture deviation evaluation in the pile foundation hole quality evaluation unit. This high-precision measurement can more accurately reflect the actual quality status of the pile foundation hole, provide reliable data support for subsequent comprehensive evaluation, and thus improve measurement accuracy.

[0013] 2. The present invention uses mathematical formulas for objective evaluation, avoiding interference from human factors. This evaluation method can ensure the consistency and accuracy of the evaluation results and reduce errors caused by subjective judgment.

[0014] 3. The present invention obtains the comprehensive quality index Z output by the comprehensive quality evaluation unit, which combines the three parameters of hole diameter deviation, hole depth deviation and inclination factor for overall evaluation. This systematic evaluation can more comprehensively reflect the quality status of the pile foundation hole.

[0015] 4. The present invention obtains the cyclic impact assessment value XHY through the output of the cyclic impact assessment unit, and combines the construction of the current hole with the previous construction results and geological conditions for evaluation. This evaluation method can more accurately reflect the degree of influence of the cyclic impact on the quality of the pile foundation hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A flow chart of the method for detecting pile foundation holes in local wood engineering; Figure 2 It is a structural schematic diagram of the quality assessment module of the present invention; Figure 3 This is a schematic diagram of the influencing factors and influencing structures for the comprehensive quality assessment of pile foundations in local timber engineering. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Regarding the local wood engineering pile foundation hole detection method, it is different from the existing pile foundation hole detection method. The existing pile foundation hole detection method mainly relies on manual measurement and empirical judgment. This method has significant limitations, which leads to errors in the measurement results. The traditional method can often only roughly measure a single parameter and cannot fully reflect the comprehensive quality of the pile foundation hole. In addition, the traditional method is inefficient and cannot meet the strict requirements of modern civil engineering construction on construction progress and quality. The algorithm uses advanced measurement equipment and data processing technology to achieve accurate measurement and comprehensive analysis of multiple parameters of the pile foundation hole, thereby more accurately evaluating the quality of the pile foundation hole.

[0019] For example, see Figures 1 to 3 This implementation provides a method for detecting pile foundation holes in civil engineering. The specific detection steps are as follows: Use the data measurement and recording module to measure and record the relevant parameters of the pile foundation hole diameter, hole depth and inclination in real time; Using the quality assessment module, the relevant parameters are substituted into the calculation and output to obtain the aperture deviation percentage K pc , comprehensive quality index Z and cycle impact assessment value XHY; And based on the comparison of the comprehensive quality index Z and the cyclic impact assessment value XHY with the historical parameters, the current construction quality of the pile foundation hole is detected and evaluated; After confirming that the current hole construction quality is qualified, the subsequent pile foundation hole construction should be carried out; The quality assessment module includes pile foundation hole quality assessment unit, comprehensive quality assessment unit and cycle impact assessment unit; The equipment used in the data measurement and recording module includes a caliper, a depth meter, an inclinometer and a data recording device. The caliper is used to measure the actual hole diameter of the pile foundation hole, the depth meter is used to measure the actual hole depth of the pile foundation hole, the inclinometer is used to measure the inclination of the pile foundation hole, and the data recording device is used to record the measurement data; The equipment used in the quality assessment module includes computing tools and data acquisition and processing systems. The computing tools are used to perform formula calculations, and the data acquisition and processing systems are used to perform preliminary analysis and processing of data.

[0020] In this embodiment, the system has made significant optimization and innovation in measurement accuracy, evaluation system, reduction of subjectivity and consideration of cycle impact through the cooperation of three algorithm units. pc The application of this detection method will help improve the construction quality of pile foundation holes and ensure the safety and stability of civil engineering structures. pc is the aperture deviation percentage, which can accurately calculate the deviation between the actual aperture and the designed aperture, so as to determine whether the pile foundation hole meets the design requirements. This helps to timely discover and correct deviations in construction, ensure the construction quality of the pile foundation hole, and thus ensure the safety and durability of the entire project. Z is the comprehensive quality index, which can achieve a comprehensive evaluation of the construction effect of the pile foundation hole from multiple dimensions. This comprehensive evaluation method can more accurately reflect the actual quality status of the pile foundation hole, and provide a favorable basis for the control and improvement of construction quality. XHY is the cyclic impact assessment value, which helps to quantitatively evaluate the extent to which the current hole construction is affected by previous construction and geological conditions, so as to identify potential risks in construction in advance and take corresponding preventive measures to ensure the smooth progress of the construction process. The calculation results of Z and XHY can also affect the feedback to K pc The calculation makes the three algorithms of this system have a high correlation and entanglement, so that the overall algorithm system can perform automatic feedback and optimization according to the actual situation to be closer to reality.

[0021] See also Figures 1 to 3 , the calculation formula of the pile foundation hole quality assessment unit is as follows: ; in: K pc is the aperture deviation percentage; K actual is the actual measured aperture value; K design The aperture value required for design.

[0022] In this embodiment: First, in this algorithm unit, The absolute value of the calculation part is used to ensure that the evaluation of the aperture deviation is not affected by whether the actual aperture is too large or too small. Regardless of whether the actual aperture is larger or smaller than the designed aperture, a positive deviation value can be obtained for comparison and evaluation, which can make the evaluation result more intuitive and unified, and facilitate subsequent processing and analysis; This algorithm unit converts the actual measured aperture value K actual The aperture value K required by the design design By comparing and calculating the deviation percentage, the degree of aperture deviation can be quantitatively expressed. This quantitative expression helps to more intuitively understand the size of aperture deviation and provide a basis for subsequent evaluation and adjustment. The aperture deviation percentage K obtained by the output of this algorithm unit pc It is one of the important indicators for evaluating the construction quality of pile foundation holes. pc , can evaluate the accuracy and stability of aperture control during the construction process, and then judge whether the construction quality meets the design requirements, so as to evaluate the construction quality; When the aperture deviation percentage K pc When it exceeds a certain range, it means that there are problems in the construction process, including drill bit wear, poor mud performance and improper operation. At this time, the construction personnel can be guided to make corresponding adjustments based on the evaluation results of the hole diameter deviation, including replacing the drill bit, adjusting the mud formula and improving the construction process to ensure that the hole diameter of the subsequent pile foundation hole meets the design requirements; Aperture deviation percentage K pc The calculation results can also be used as one of the input data for the subsequent comprehensive quality assessment unit, providing data support for the comprehensive assessment of the quality status of the pile foundation hole.

[0023] See also Figures 1 to 3 , the calculation formula of the comprehensive quality assessment unit is as follows: ; S pc =[(S actual -S design ) / S design ] 2 ; X pc =(X actual / X max ) 2 ; in: Z is the comprehensive quality index; S pc is the hole depth deviation value; S actual is the actual measured hole depth value; S design The hole depth value required by the design; Xpc is the inclination deviation value; X actual To actually measure the inclination; X max The maximum designed inclination.

[0024] In this embodiment, the three deviation values ​​of hole diameter deviation, hole depth deviation and inclination deviation are first selected for calculation, mainly because they have an important influence in pile foundation hole construction and are directly related to the bearing capacity and stability of the pile foundation; As for the aperture deviation, the size of the aperture directly affects the contact area and friction between the pile foundation and the surrounding soil, and thus affects the bearing capacity of the pile foundation; As for the hole depth deviation, insufficient hole depth will result in insufficient depth of the pile foundation embedded in the soil, reducing the bearing capacity and stability of the pile foundation, while excessive hole depth will increase the construction difficulty and cost; As for the inclination deviation, the inclination of the pile foundation directly affects its verticality and stability. Excessive inclination will cause the pile foundation to tilt and be damaged during use. The comprehensive quality index Z obtained by the output of this algorithm unit can comprehensively consider multiple key parameters and fully reflect the overall quality of the pile foundation hole. This comprehensive evaluation helps to more accurately determine whether the quality of the pile foundation hole meets the design requirements; Through the calculation of mathematical formulas, the complex quality status is quantified into a specific value, namely the comprehensive quality index Z, which makes it easier to compare and evaluate the quality of different pile foundation holes; The calculation result of the comprehensive quality index can be used as an important basis for construction decision-making. When the comprehensive quality index Z value is low, it indicates that there are major problems with the quality of the pile foundation hole and corresponding measures need to be taken to improve it. When the comprehensive quality index Z value is high, it indicates that the quality of the pile foundation hole is good and subsequent construction can continue. The calculation process of the comprehensive quality index Z involves the measurement and evaluation of multiple key parameters, which helps to promote quality control during the construction process. By continuously monitoring and evaluating the changes in these key parameters, potential quality problems can be discovered and dealt with in a timely manner, ensuring that the construction quality of the pile foundation holes is always maintained at a high level.

[0025] See also Figures 1 to 3 , the calculation formula of the cycle impact assessment unit is as follows: XHY=[Z+a*Z prev +(b*(10-PF))] / (1+a+b); PF=(T1+T2+T3+T4) / 4; in: XHY is the cycle impact assessment value; Z previs the comprehensive quality index of the previous hole; PF is the current hole geological condition score; T1 is the bearing capacity score, T2 is the groundwater level score, T3 is the rock distribution score, and T4 is the soil stability score; The soil bearing capacity tester detects that the current soil bearing capacity is 9-10 points higher than the soil bearing capacity of the previous hole, 5-7 points for medium, and 0-4 points for low. The groundwater automatic monitoring and reporting system detects that the current water level is 9-10 points lower than the water level of the previous hole, 5-7 points in the middle, and 0-4 points in the high; The distribution of the current rock layer detected by geological radar is 9-10 points higher than that of the previous hole, 5-7 points in the middle, and 0-4 points in the low. The soil compression tester detects the stability of the current soil compared with the previous hole. The high score is 9-10, the medium score is 5-7, and the low score is 0-4. a and b are weight coefficients, which are used to adjust the comprehensive quality index Z of the previous hole. prev And the degree of influence of the current hole geological condition score value PF on the circulation impact assessment value XHY.

[0026] In this embodiment, the algorithm unit first obtains the comprehensive quality index Z based on the output of the comprehensive quality evaluation unit. In addition, the weight coefficient a is related to the comprehensive quality index Z of the previous hole. prev The relevant weight coefficient determines the comprehensive quality index Z of the previous hole prev The proportion of the current hole in the cyclic impact assessment. If the value of the weight coefficient a is large, it means that the construction quality of the previous hole has a greater impact on the current hole. This is because the factors of soil conditions, construction equipment status, and construction personnel experience have a certain continuity in continuous construction. On the contrary, if the value of the weight coefficient a is small, it means that the construction quality of the previous hole has a smaller impact on the current hole. This is because the construction conditions and soil characteristics vary greatly between different hole positions. The weight coefficient b is a weight coefficient related to the current hole geological condition score PF, which reflects the importance of geological conditions in the cyclic impact assessment of the current hole. If the value of the weight coefficient b is large, it means that the geological conditions have a significant impact on the construction quality and stability of the current hole, and more attention needs to be paid. Conversely, if the value of the weight coefficient b is small, it means that although the geological conditions exist, their impact on the current hole construction is relatively small.

[0027] In the pile foundation project with continuous construction, the construction of the current hole is often affected by the construction results of the previous hole. Then, by calculating the cycle impact assessment value XHY, the degree of cycle impact caused by the continuous construction can be quantitatively expressed. Geological conditions are one of the important factors affecting the construction quality of pile foundation holes. By introducing the current hole geological condition score PF into the cyclic impact assessment, the adaptability of the current hole construction to the geological conditions can be evaluated. The geological condition score PF is considered based on the comprehensive evaluation of the soil bearing capacity, groundwater level, rock distribution and soil stability compared with the previous hole, which improves the accuracy of the score. When the cycle impact assessment value XHY is high, it indicates that the construction of the current hole is greatly affected by the previous construction and geological conditions, and there is a greater quality risk. At this time, the construction strategy can be optimized according to the evaluation results of the cycle impact assessment value XHY; Through the circular impact assessment, construction problems caused by continuous construction and changes in geological conditions can be discovered and dealt with in a timely manner, avoiding the accumulation of problems that lead to greater quality risks and construction delays.

[0028] See also Figures 1 to 3 The comprehensive testing and evaluation steps based on the comprehensive quality assessment unit and the cycle impact assessment unit are as follows: S1. Extract the previous hole cycle impact assessment value XHY from the data measurement record module prev ; S2. If the comprehensive quality index Z is higher than the comprehensive quality index Z of the previous hole prev , and the cycle impact assessment value XHY is higher than the cycle impact assessment value XHY of the previous hole prev , it indicates that the construction quality of the current hole is significantly lower than that of the previous hole. When the construction process of the previous hole and the current hole is comprehensively checked, the construction plan is adjusted and the construction parameters are optimized; S3. If the comprehensive quality index Z is equal to the comprehensive quality index Z of the previous hole prev , and the cycle impact assessment value XHY is equal to the cycle impact assessment value XHY of the previous hole prev , it indicates that the construction quality of the current hole is stable, and the current construction status and management measures should be kept unchanged; S4. If the comprehensive quality index Z is lower than the comprehensive quality index Z of the previous hole prev , and the cycle impact assessment value XHY is lower than the cycle impact assessment value XHY of the previous hole prev , it indicates that the construction quality of the current hole has been significantly improved compared with the previous hole, and the construction quality of the previous hole is abnormally overestimated. The current geological conditions and construction conditions have little impact on the hole quality, and the construction quality data of the previous hole should be reviewed; After the comprehensive testing and evaluation process of the comprehensive quality evaluation unit and the cycle impact evaluation unit, the test results are obtained, and the adjustment measures according to the test results are as follows; If the test result is as S2, the engineer should take a series of measures to improve the construction, including replacing the drill bit, adjusting the mud formula, and optimizing the drilling parameters. The implementation of the above measures directly affects the measurement results of the hole diameter deviation, and then adjusts the relevant values ​​in the pile foundation hole quality assessment unit; If the test results are as in S3 and S4, the engineer should keep the current construction status and management measures unchanged, and there is little need to adjust the values ​​in the pile foundation hole quality assessment unit.

[0029] In this embodiment, the algorithm unit compares the comprehensive quality index Z with the comprehensive quality index Z of the previous hole. prev , and the previous hole cycle impact assessment value XHY prev The cycle impact assessment value XHY can timely discover the difference in construction quality between the current hole and the previous hole, and can not only detect the current hole but also review the previous hole, which indirectly improves the detection effect, so that the problem can be quickly located and corresponding measures can be taken. In the pile foundation project under continuous construction, due to the change of soil conditions and the influence of previous construction, the aperture deviation of the current hole is not only determined by the current construction factors. By considering the cycle impact, the comprehensive quality assessment unit can more accurately assess the aperture deviation of the current hole, avoiding the assessment error caused by ignoring the cycle impact; Based on the evaluation results of the cyclic impact assessment value XHY, it is possible to understand the degree to which the current construction is affected by the cyclic impact of previous construction and geological conditions, which helps engineers adjust the construction plan according to the specific situation. In addition, optimizing the drilling process and strengthening the mud wall can reduce the impact on the hole diameter deviation. This construction strategy optimization based on cyclic impact helps to improve the overall construction quality of the pile foundation hole; Through the circular impact assessment, the construction sequence and resource allocation can be reasonably arranged to avoid unnecessary duplication of work and waste of resources. At the same time, timely detection and handling of construction problems can reduce construction delays caused by rework and repair, and improve construction efficiency; Cyclic impact assessment is an important part of construction quality control. It continuously monitors and evaluates the comprehensive quality index Z, the comprehensive quality index Z of the previous hole, and the prev , the previous hole cycle affects the evaluation value XHY prev The changes in the cyclic impact assessment value XHY can timely discover potential quality problems and take corresponding prevention and control measures to ensure that the construction quality of the entire pile foundation project meets the design requirements, thereby enhancing the quality control of the entire pile foundation project construction process. This quality control can focus on the quality status of a single pile foundation hole.

[0030] For example 2, please refer to Figures 1 to 3The current hole geological condition score PF is used to quantify the complexity of geological conditions and the degree of influence on pile foundation hole construction, and the current hole geological condition score PF is specifically scored in the range of 0-10; 0 points: The surface geological conditions are simple and have little impact on the construction of pile foundation holes; 10 points: The surface geological conditions are extremely complex, which poses great challenges and risks to the construction of pile foundation holes; The middle value in the range of 0-10 points is scored based on the actual geological conditions. The higher the score, the more complex the surface geological conditions, and the greater the construction difficulty and risk.

[0031] In this embodiment, the range of the current hole geological condition score PF is set to 0-10, which is a relatively common scoring range used to quantify the complexity of geological conditions and the degree of influence on pile foundation hole construction. The selection of this scoring range has certain flexibility and practicality, and can be adjusted according to the geological survey report of the specific project and the experience of engineers. At the same time, the clarity of the scoring criteria also helps to compare and evaluate different projects.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for detecting pile foundation holes in civil engineering, characterized in that: The specific detection steps are as follows: The data measurement and recording module is used to measure and record the parameters of the pile foundation hole diameter, hole depth and inclination in real time; Using the quality assessment module, the parameters are substituted into the calculation and output to obtain the aperture deviation percentage K pc , comprehensive quality index Z and cycle impact assessment value XHY; And based on the comparison of the comprehensive quality index Z and the cyclic impact assessment value XHY with the historical parameters, the current construction quality of the pile foundation hole is detected and evaluated; Confirm that the current hole construction quality is qualified and proceed with the construction of subsequent pile foundation holes; The quality assessment module includes a pile foundation hole quality assessment unit, a comprehensive quality assessment unit and a circulation impact assessment unit.

2. The civil engineering pile foundation hole detection method according to claim 1, characterized in that: The equipment used in the data measurement and recording module includes a caliper, a depth meter, an inclinometer and a data recording device, wherein the caliper is used to measure the actual hole diameter of the pile foundation hole, the depth meter is used to measure the actual hole depth of the pile foundation hole, the inclinometer is used to measure the inclination of the pile foundation hole, and the data recording device is used to record the measurement data; The equipment used in the quality assessment module includes a computing tool and a data acquisition and processing system. The computing tool is used to execute formula calculations, and the data acquisition and processing system is used to perform preliminary analysis and processing on data.

3. The civil engineering pile foundation hole detection method according to claim 2, characterized in that: The calculation formula of the pile foundation hole quality assessment unit is as follows: ; in: K pc is the aperture deviation percentage; K actual is the actual measured aperture value; K design The aperture value required for design.

4. The civil engineering pile foundation hole detection method according to claim 3, characterized in that: The calculation formula of the comprehensive quality assessment unit is as follows: ; S pc =[(S actual -S design ) / S design ] 2 ; X pc =(X actual / X max ) 2 ; in: Z is the comprehensive quality index; S pc is the hole depth deviation value; S actual is the actual measured hole depth value; S design The hole depth value required by the design; X pc is the inclination deviation value; X actual To actually measure the inclination; X max The maximum designed inclination.

5. The civil engineering pile foundation hole detection method according to claim 4, characterized in that: The calculation formula of the cycle impact assessment unit is as follows: XHY=[Z+a*Z prev +(b*(10-PF))] / (1+a+b); PF=(T1+T2+T3+T4) / 4; in: XHY is the cycle impact assessment value; Z prev is the comprehensive quality index of the previous hole; PF is the current hole geological condition score; T1 is the bearing capacity score, T2 is the groundwater level score, T3 is the rock distribution score, and T4 is the soil stability score; The soil bearing capacity tester detects that the current soil bearing capacity is 9-10 points higher than the soil bearing capacity of the previous hole, 5-7 points for medium, and 0-4 points for low. The groundwater automatic monitoring and reporting system detects that the current water level is 9-10 points lower than the water level of the previous hole, 5-7 points in the middle, and 0-4 points in the high; The distribution of the current rock layer detected by geological radar is 9-10 points higher than that of the previous hole, 5-7 points in the middle, and 0-4 points in the low. The soil compression tester detects the stability of the current soil compared with the previous hole. The high score is 9-10, the medium score is 5-7, and the low score is 0-4. a and b are weight coefficients, which are used to adjust the comprehensive quality index Z of the previous hole. prev And the degree of influence of the current hole geological condition score value PF on the circulation impact assessment value XHY.

6. The civil engineering pile foundation hole detection method according to claim 5, characterized in that: The comprehensive detection and evaluation process based on the comprehensive quality evaluation unit and the cycle impact evaluation unit is as follows: Extract the previous hole cycle impact evaluation value XHY from the data measurement record module prev ; If the comprehensive quality index Z is higher than the comprehensive quality index Z of the previous hole prev , and the cycle impact assessment value XHY is higher than the cycle impact assessment value XHY of the previous hole prev , it indicates that the construction quality of the current hole is significantly lower than that of the previous hole. When the construction process of the previous hole and the current hole is comprehensively checked, the construction plan is adjusted and the construction parameters are optimized; If the comprehensive quality index Z is equal to the comprehensive quality index Z of the previous hole prev , and the cycle impact assessment value XHY is equal to the cycle impact assessment value XHY of the previous hole prev , it indicates that the construction quality of the current hole is stable, and the current construction status and management measures should be kept unchanged; If the comprehensive quality index Z is lower than the comprehensive quality index Z of the previous hole prev , and the cycle impact assessment value XHY is lower than the cycle impact assessment value XHY of the previous hole prev , it indicates that the construction quality of the current hole has been significantly improved compared with the previous hole, and the construction quality of the previous hole has been abnormally overestimated. The current geological conditions and construction conditions have little effect on the hole quality, and the construction quality data of the previous hole should be reviewed.

7. The civil engineering pile foundation hole detection method according to claim 6, characterized in that: After the comprehensive testing and evaluation process of the comprehensive quality evaluation unit and the cycle impact evaluation unit, the test results are obtained, and the adjustment measures according to the test results are as follows; If the comprehensive quality index Z is higher than the comprehensive quality index Z of the previous hole prev , the engineer should take a series of measures to improve the construction, including replacing the drill bit, adjusting the mud formula, and optimizing the drilling parameters. The implementation of the above measures directly affects the measurement results of the hole diameter deviation, and then adjust the relevant values ​​in the pile foundation hole quality assessment unit; If the comprehensive quality index Z is equal to or lower than the comprehensive quality index Z of the previous hole prev , the engineer should keep the current construction status and management measures unchanged, and there is little need to adjust the values ​​in the pile foundation hole quality assessment unit.

8. The civil engineering pile foundation hole detection method according to claim 5, characterized in that: The current hole geological condition score PF is used to quantify the complexity of geological conditions and the degree of influence on pile foundation hole construction, and the current hole geological condition score PF is specifically scored in the range of 0-10; The middle value in the range of 0-10 points is scored based on the actual geological conditions. The higher the score, the more complex the surface geological conditions, and the greater the construction difficulty and risk.

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