Method, device, equipment and medium for monitoring and evaluating screwing construction quality of screw anchor

Abstract

The invention provides a screw anchor screwing construction quality monitoring and evaluation method, device and equipment and a medium. The method comprises the following steps: acquiring monitoring data of a plurality of quality monitoring indexes in a screw anchor screwing construction process; determining the deviation of each quality monitoring index based on each piece of monitoring data and the index reference value corresponding to each piece of monitoring data; wherein the plurality of quality monitoring indexes comprise construction torque; the index reference value corresponding to the construction torque adopts a pre-obtained torque prediction value; determining an evaluation result based on the deviation of each quality monitoring index; the method and the device can directly and effectively quantify the construction quality grade by performing weighted summation on the deviation of the quality monitoring indexes, so that an operator can accurately evaluate the construction quality conveniently, and a data basis is provided for subsequent construction quality optimization; the deviation of the construction torque is calculated through the torque predicted value, a judgment mode of using a fixed threshold value is avoided, the influence of mechanical errors and site non-uniformity on the calculation of the deviation of the construction torque is eliminated, and the accuracy of an evaluation result is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of geotechnical engineering, and particularly relates to a screw anchor screwing construction quality monitoring and evaluation method, device, equipment and medium. BACKGROUND

[0002] Screw anchor is a prefabricated deep foundation, which realizes anchoring function by welding a spiral blade on a seamless steel pipe, and can effectively resist the action of upper load by screwing into the undisturbed soil like a screw. Screw anchor foundation has simple construction, short construction period, no need for site pouring, small environmental damage, reliable performance and wide applicability, and is widely used in modern geotechnical engineering.

[0003] Screw anchor foundation has no excavation operation in the construction process, relies on a power head and other equipment to provide torque for screwing operation, and screws into underground space. Since the large equipment such as power head has great difficulty in precision control, the existing construction method is relatively extensive, and there is a lack of corresponding quality monitoring and evaluation method, so the construction quality cannot be directly and effectively judged by the operator, which increases the difficulty of popularization and application of screw anchor foundation. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the present application provides a screw anchor screwing construction quality monitoring and evaluation method, which comprises:

[0005] In the screwing construction process of the screw anchor, based on a plurality of preset quality monitoring indexes, corresponding monitoring data are obtained;

[0006] Each monitoring data is calculated with the index reference value corresponding to each monitoring data to determine the deviation of each quality monitoring index; wherein the plurality of quality monitoring indexes include a construction torque; the index reference value corresponding to the construction torque adopts a pre-obtained torque prediction value;

[0007] Based on the deviation of each quality monitoring index, the evaluation result of the screw anchor screwing construction is determined.

[0008] Preferably, the obtaining process of the torque prediction value comprises:

[0009] Based on the monitoring data of the construction torque, the actual torque value at each screwing depth in the construction process is determined;

[0010] Taking the screwing depth as the horizontal coordinate and the torque value as the vertical coordinate, the actual torque value at each screwing depth in the construction process is linearly fitted without intercept to obtain the slope of the fitting curve;

[0011] The slope of the fitting curve is multiplied by the actual torque value at each screwing depth to obtain the torque prediction value at each screwing depth.

[0012] Preferably, the deviation of the construction torque comprises the following acquisition process:

[0013] Based on the actual torque value and the torque prediction value at each screwing depth, the root mean square error of the actual torque value and the torque prediction value at each screwing depth is calculated to obtain the deviation of the construction torque.

[0014] Preferably, the evaluation result of the screw anchor screwing construction based on the deviation of each quality monitoring index comprises:

[0015] Based on the monitoring data of each quality monitoring index, the extreme value of the monitoring data of each quality monitoring index is obtained;

[0016] The extreme value of the monitoring data of each quality monitoring index is compared with the preset limit value of each quality monitoring index to determine whether the screw anchor screwing construction meets the preset limit value requirements of each quality monitoring index;

[0017] When the screw anchor screwing construction meets the preset limit value requirements of all quality monitoring indexes, the preliminary evaluation result of the screw anchor screwing construction is qualified, and the deviations of each quality monitoring index are weighted and summed to obtain the final evaluation result of the screw anchor screwing construction; otherwise, the final evaluation result of the screw anchor screwing construction is unqualified.

[0018] Preferably, the weighted sum of the deviations of each quality monitoring index to obtain the final evaluation result of the screw anchor screwing construction comprises:

[0019] Based on the soil type of the screw anchor screwing construction, the sensitivity coefficient of each quality monitoring index to the soil type is determined;

[0020] Based on the sensitivity coefficient of each quality monitoring index to the soil type, the deviation of each quality monitoring index is coefficientized to obtain the deviation sensitivity value of each quality monitoring index;

[0021] Based on the deviation sensitivity value of each quality monitoring index, the proportion of the deviation sensitivity value of each quality monitoring index in the total sum of the deviation sensitivity values of all quality monitoring indexes is determined to obtain the weight of the deviation of each quality monitoring index;

[0022] Based on the weight of each quality monitoring index, the deviations of each quality monitoring index are weighted and summed to obtain the final evaluation result of the screw anchor screwing construction.

[0023] Preferably, the plurality of quality monitoring indexes further comprises a construction inclination angle and a footage ratio.

[0024] Preferably, the calculation process of the final evaluation result of the screw anchor screwing construction satisfies the following formula:

[0025]

[0026]

[0027] Wherein, σ represents the final evaluation result of the screw anchor screwing construction; ω T , ω θ , ω R respectively represent the weight of the deviation of the construction torque, the construction inclination angle and the footage ratio; σ T , σ θ , σ R respectively represent the deviation of the construction torque, the construction inclination angle and the footage ratio; α T , α θ , α R respectively represent the sensitive coefficient of the construction torque, the construction inclination angle and the footage ratio to the soil type; respectively represent the sensitive value of the deviation of the construction torque, the construction inclination angle and the footage ratio; represents the average value of the monitoring data of the construction torque, θ0 represents the design inclination angle of the screw anchor, represents the average value of the monitoring data of the footage ratio.

[0028] Based on the same inventive concept, the application also provides a screw anchor screwing construction quality monitoring and evaluation device, comprising: a data monitoring device arranged on a power head, a deviation calculation module in communication connection with the data monitoring device, and an evaluation module in communication connection with the deviation calculation module;

[0029] The data monitoring device is used to acquire corresponding monitoring data based on a plurality of preset quality monitoring indexes during the screw anchor screwing construction process;

[0030] The deviation calculation module is used to calculate each monitoring data and the index reference value corresponding to each monitoring data to determine the deviation of each quality monitoring index; wherein the construction torque is included in the plurality of quality monitoring indexes; the index reference value corresponding to the construction torque adopts a pre-acquired torque prediction value;

[0031] The evaluation module is used to determine the evaluation result of the screw anchor screwing construction based on the deviation of each quality monitoring index.

[0032] Preferably, the data monitoring device comprises a torque monitor, an inclination angle monitor and a footage ratio monitor, which are all arranged on the power head.

[0033] Preferably, the footage ratio monitor comprises a laser range finder arranged on the side of the power head facing the construction ground and a screwing turn number monitoring device arranged on the output shaft of the power head.

[0034] Preferably, the laser range finder is hingedly connected to the power head, and a counterweight is arranged on the laser range finder to make the laser emitted by the laser range finder perpendicular to the construction ground.

[0035] Preferably, the deviation calculation module is specifically configured to:

[0036] determine actual torque values at each screwing depth in the construction process based on the monitoring data of the construction torque;

[0037] perform a non-intercept linear fitting on the actual torque values at each screwing depth in the construction process with the screwing depth as the horizontal coordinate and the torque value as the vertical coordinate to obtain a slope of a fitting curve;

[0038] multiply the slope of the fitting curve by the actual torque value at each screwing depth to obtain a torque prediction value at each screwing depth.

[0039] Preferably, the deviation calculation module is specifically configured to:

[0040] calculate root mean square errors of the actual torque values and the torque prediction values at each screwing depth based on the actual torque values and the torque prediction values at each screwing depth to obtain the deviation of the construction torque.

[0041] Preferably, the evaluation module comprises:

[0042] a limit judgment unit configured to: obtain monitoring data extreme values of each of the quality monitoring indexes based on the monitoring data of each of the quality monitoring indexes; compare the monitoring data extreme values of each of the quality monitoring indexes with preset limit values of each of the quality monitoring indexes to determine whether the screw anchor screwing construction meets the preset limit value requirements of each of the quality monitoring indexes;

[0043] a final evaluation unit configured to: when the screw anchor screwing construction meets the preset limit value requirements of all the quality monitoring indexes, the preliminary evaluation result of the screw anchor screwing construction is qualified, and a weighted sum of deviations of each of the quality monitoring indexes is obtained to obtain a final evaluation result of the screw anchor screwing construction; otherwise, the final evaluation result of the screw anchor screwing construction is unqualified.

[0044] Preferably, the final evaluation unit is specifically configured to:

[0045] determine a sensitive coefficient of each of the quality monitoring indexes for the soil type based on the soil type of the screw anchor screwing construction;

[0046] Based on the sensitivity coefficient of each quality monitoring indicator to the soil type, the deviation of each quality monitoring indicator is coefficientized to obtain a deviation sensitivity value of each quality monitoring indicator;

[0047] Based on the deviation sensitivity value of each quality monitoring indicator, a proportion of the deviation sensitivity value of each quality monitoring indicator in the total of the deviation sensitivity values of all quality monitoring indicators is determined to obtain a weight of the deviation of each quality monitoring indicator;

[0048] Based on the weight of each quality monitoring indicator, the deviations of the quality monitoring indicators are weighted and summed to obtain a final evaluation result of the screw anchor screwing construction.

[0049] Preferably, the plurality of quality monitoring indicators further include a construction inclination and a footage ratio.

[0050] Preferably, the calculation process of the final evaluation result of the screw anchor screwing construction satisfies the following formula:

[0051]

[0052]

[0053] wherein, σ represents the final evaluation result of the screw anchor screwing construction; ω T , ω θ , ω R respectively represent the weights of the deviations of the construction torque, the construction inclination and the footage ratio; σ T , σ θ , σ R respectively represent the deviations of the construction torque, the construction inclination and the footage ratio; α T , α θ , α R respectively represent the sensitivity coefficients of the construction torque, the construction inclination and the footage ratio to the soil type; respectively represent the deviation sensitivity values of the construction torque, the construction inclination and the footage ratio; represents the average value of the monitoring data of the construction torque, θ0 represents the design inclination of the screw anchor, represents the average value of the monitoring data of the footage ratio.

[0054] Based on the same inventive concept, the present application also provides a computer device, comprising: one or more processors;

[0055] a memory for storing one or more programs;

[0056] When the one or more programs are executed by the one or more processors, a screw anchor screwing construction quality monitoring evaluation method as described above is implemented.

[0057] Based on the same inventive concept, the application also provides a readable storage medium, which has a computer program stored thereon, and the computer program is executed to realize the screw anchor screwing construction quality monitoring and evaluation method as described above.

[0058] Compared with the closest prior art, the application has the following beneficial effects:

[0059] The application provides a screw anchor screwing construction quality monitoring and evaluation method, device, equipment and medium, including in the screw anchor screwing construction process, based on a plurality of preset quality monitoring indexes, corresponding monitoring data is acquired;Each monitoring data is calculated with the index reference value corresponding to each monitoring data, and the deviation of each quality monitoring index is determined;Among the plurality of quality monitoring indexes, the construction torque is included;The index reference value corresponding to the construction torque adopts the pre-acquired torque prediction value;Based on the deviation of each quality monitoring index, the evaluation result of the screw anchor screwing construction is determined;The method and device break through the limitation of single index evaluation by monitoring a plurality of quality monitoring indexes, and can directly and effectively quantify the construction quality grade by weighted sum of the deviation of quality monitoring index, so as to facilitate the operation personnel to accurately evaluate the construction quality, and provide data basis for subsequent construction quality optimization;The deviation of the construction torque is calculated by the torque prediction value, so as to avoid the judgment mode of using fixed threshold, thereby eliminating the influence of the error of construction machinery and the non-uniformity of the site on the calculation of the construction torque deviation, and improving the accuracy of the evaluation result. BRIEF DESCRIPTION OF DRAWINGS

[0060] Figure 1 A screw anchor screwing construction quality monitoring and evaluation method flow chart is provided for the application;

[0061] Figure 2 A screw anchor screwing construction quality monitoring and evaluation device structure diagram is provided for the application;

[0062] Figure 3 An electronic equipment structure diagram is provided for the application;

[0063] Among them, 1, power head;2, torque monitor;3, inclination monitor;4, laser range finder;5, screwing circle number monitoring equipment. DETAILED DESCRIPTION

[0064] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings.

[0065] Example 1:

[0066] A screw anchor screwing construction quality monitoring and evaluation method provided by the application, as shown in Figure 1 , including:

[0067] S1, during the screwing construction of the screw anchor, based on a plurality of preset quality monitoring indexes, corresponding monitoring data is obtained;

[0068] S2, each monitoring data is calculated with the index reference value corresponding to each monitoring data to determine the deviation of each quality monitoring index; wherein the construction torque is included in the plurality of quality monitoring indexes; the index reference value corresponding to the construction torque adopts the pre-obtained torque prediction value;

[0069] S3, based on the deviation of each quality monitoring index, the evaluation result of the screw anchor screwing construction is determined.

[0070] The present application aims at the problems of extensive construction process, uncontrollable construction process, difficult quality monitoring and evaluation of screw anchor foundation construction process, breaks through the limitation of single index evaluation by monitoring a plurality of quality monitoring indexes, and can directly and effectively quantify the construction quality grade by weighted sum of the deviation of quality monitoring indexes, so as to facilitate the construction personnel to accurately evaluate the construction quality and provide data basis for subsequent construction quality optimization; the deviation of the construction torque is calculated by the torque prediction value, avoiding the judgment mode of using fixed threshold, so as to eliminate the influence of the error of construction machinery and the non-uniformity of site on the calculation of construction torque deviation, and improve the accuracy of the evaluation result.

[0071] Considering that the construction torque directly reflects the resistance of the screw anchor when it is screwed into the stratum, the change of the torque can be monitored to indirectly judge whether the stratum property is consistent with the survey result, and to evaluate the final uplift bearing capacity of the anchor rod. Therefore, the construction torque is included in the plurality of quality monitoring indexes. The construction torque can be monitored in real time. With the increase of the construction depth, the screw anchor is screwed into deeper soil layer, and the screwing torque also increases. In an ideal case, the torque increases linearly with the depth. In actual engineering, due to the error of construction machinery and the non-uniformity of site, the torque change curve with depth usually does not present a completely linear increase relationship. Therefore, the index reference value of the construction torque cannot be simply determined. In the above S2, the pre-obtained torque prediction value is taken as the index reference value corresponding to the construction torque, which is convenient for subsequent calculation of the construction torque deviation.

[0072] In the embodiment, the acquisition process of the torque prediction value in the above S2 includes:

[0073] Based on the monitoring data of the construction torque, the actual torque value at each screwing depth in the construction process is determined;

[0074] Taking the screwing depth as the horizontal coordinate and the torque value as the vertical coordinate, the actual torque value at each screwing depth in the construction process is subjected to a non-intercept linear fitting to obtain the slope of the fitting curve;

[0075] The slope of the fitting curve is multiplied by the actual torque value at each screwing depth to obtain the torque prediction value at each screwing depth.

[0076] Specifically, the torque data is measured at a certain screwing depth during construction. Since the initial construction point depth and torque value are both 0, the fitting curve passes through the point (0, 0), i.e., the intercept of the fitting curve is 0, and the slope k of the fitting curve is as follows:

[0077]

[0078] where S i represents the screw anchor screwing depth obtained by the ith measurement, T i represents the actual torque value of the screw anchor screwing obtained by the ith measurement.

[0079] An approximate relationship between torque and depth and the maximum torque value T max are obtained by linear fitting.

[0080] The torque prediction value k·S i at the current screwing depth is calculated from the measured torque, which is used as a reference value for the actual torque value. By calculating the deviation of the torque data points in the monitoring data, i.e., the actual torque value and the data on the fitting curve, i.e., the linear fitting straight line, the deviation value of the actual torque and the ideal torque can be obtained. The error ΔT i between the actual torque and the ideal torque obtained by the ith measurement is represented as: ΔT i = T i - k·S i .

[0081] In this embodiment, the deviation of the construction torque in S2 is obtained as follows:

[0082] Based on the actual torque value and the torque prediction value at each screwing depth, the root mean square error of the actual torque value and the torque prediction value at each screwing depth is calculated to obtain the deviation of the construction torque.

[0083] The torque deviation is represented as: where n represents the total number of measurements of each quality monitoring index during the screwing construction of the screw anchor.

[0084] In this embodiment, the plurality of quality monitoring indexes further include a construction inclination and a footage ratio.

[0085] The screw anchor foundation construction process is screwed according to the inclination θ0 specified in the design. Considering the mechanical control error in the construction process, the inclination value measured by the sensor presents a certain fluctuation. The greater the inclination value fluctuation, the greater the operation error in the construction process, the greater the fluctuation range of the screw anchor during screwing, and the more serious the disturbance to the undisturbed soil. Therefore, the inclination data is recorded at a certain depth interval during the construction process to obtain a series of inclination values and the maximum inclination error.

[0086] The screw anchor design inclination is taken as the reference value of the index, and the inclination deviation σ θ is calculated as follows:

[0087] Where θ i represents the measured screw anchor construction inclination at the i-th time, and θ0 represents the screw anchor design inclination.

[0088] The footage represents the depth of the screw anchor screwing down one circle, that is, the pile displacement per revolution in the construction process. The footage per circle is calculated by measuring the screwing depth of the screw anchor in real time and combining the number of turns sensor count. In theory, the screw anchor screwing into the soil is like a screw, and the pile displacement per revolution is consistent with the screw anchor disc pitch. However, due to the obstruction and loosening of the soil, the actual engineering screw anchor footage is less than the pitch. After the construction is completed, the average value is calculated to obtain the average pile displacement per revolution of the screw anchor, and the footage ratio reflects the possible idle running of the screw anchor in the construction process.

[0089] The calculation formula of the footage ratio R is as follows:

[0090] Where S represents the depth of the screw anchor screwing into the soil, and N represents the number of turns.

[0091] The construction footage and mechanical error, geological conditions are related. In the ideal case, the construction footage ratio is slightly less than 1. However, due to the uncertainty of operation and the unevenness of the site, the construction footage ratio will fluctuate within a certain range. The average value of the footage ratio is taken as the reference value of the index, and the footage ratio deviation σ s can be calculated by the following formula.

[0092] The calculation formula of the footage ratio deviation σ s is as follows:

[0093] Where R i represents the measured footage ratio of the screw anchor at the i-th time, and R represents the average value of the footage ratio.

[0094] In the embodiment, the above S3 includes:

[0095] S301, based on the monitoring data of each quality monitoring index, obtaining the monitoring data extreme value of each quality monitoring index;

[0096] S302, comparing the monitoring data extreme value of each quality monitoring index with the preset limit value of each quality monitoring index, judging whether the screw anchor screwing construction meets the preset limit value requirement of each quality monitoring index;

[0097] S303, when the screw anchor screwing construction meets the preset limit value requirement of all quality monitoring indexes, the preliminary evaluation result of the screw anchor screwing construction is qualified, and the deviation of each quality monitoring index is weighted and summed to obtain the final evaluation result of the screw anchor screwing construction; otherwise, the final evaluation result of the screw anchor screwing construction is unqualified.

[0098] Through design calculation or test test, the designer can propose the minimum torque T n of the screw anchor construction as the preset limit value of the construction torque, when the maximum construction torque of the screw anchor screwing is greater than the minimum torque T n , the screw anchor construction torque foundation can be considered to meet the construction quality and bearing capacity requirements.

[0099] Through design calculation or test test, the designer can propose the maximum design inclination error Δθ m of the screw anchor construction as the preset limit value of the construction inclination, and the calculation formula of the maximum inclination error of the screw anchor construction is: Δθ max = max(θ i -θ0), when the maximum inclination error Δθ max of the screw anchor screwing is less than the maximum design inclination error Δθ m , the screw anchor foundation screwing construction inclination process can be considered to meet the construction quality and bearing capacity requirements.

[0100] Through design calculation or test test, the designer can propose the minimum footage ratio R n of the screw anchor construction as the preset limit value of the footage ratio, when the minimum footage ratio of the screw anchor screwing is greater than the minimum footage ratio R n , the screw anchor foundation screwing construction process can be considered to meet the construction quality and bearing capacity requirements.

[0101] In the actual construction process, the screw anchor screwing torque, inclination and footage are changing values with the increase of depth, among which the torque should increase linearly with the increase of depth, and the inclination should be close to the design inclination, and the footage ratio should be greater than 85% (or adjusted according to the requirements of the designer).

[0102] For example, after the construction is completed, the maximum torque, maximum inclination error and footage ratio of the screw anchor screwing construction determined by the above monitoring are comprehensively qualitatively judged to determine the construction quality of the screw anchor foundation:

[0103] maximum construction torque T max : T max > T n , wherein the minimum construction torque T

[0104] , wherein Q tu represents the axial uplift ultimate bearing capacity of the foundation anchor, kN; k T represents the torque coefficient, which is determined by experiments or can be determined according to the properties of the foundation soil and the specifications and sizes of the foundation anchor, and is generally taken as 10-40 m -1 .

[0105] maximum inclination error Δθ max : Δθ max < Δθ m , wherein the maximum design inclination error Δθ m can be comprehensively determined according to the construction machinery and site conditions on site, and is generally not more than 3°, and can be appropriately relaxed to 5° when the site conditions are better or the depth of the screw anchor is larger.

[0106] penetration ratio R: R > R n , wherein the minimum penetration ratio R n can be taken as 85%, and for harder soil layers, the index limit value can be proposed after being demonstrated by experiments.

[0107] When the above three evaluation conditions are simultaneously satisfied, it is considered that the screw anchor foundation screwing construction quality meets the engineering requirements.

[0108] According to the limit values of multiple quality monitoring indicators, it is preliminarily judged whether the screw anchor screwing construction meets the minimum bearing capacity requirement, and then the final evaluation result is calculated according to the deviations of the quality monitoring indicators, the screw anchor construction quality is scored in the case of meeting the minimum bearing capacity requirement, and the construction quality grade is further subdivided, which is convenient for controllable management and fine management in the construction process.

[0109] In the embodiment, when the weighted sum of the deviations of the quality monitoring indicators is obtained in the above S303, the final evaluation result of the screw anchor screwing construction can include:

[0110] Based on the type of the soil of the screw anchor screwing construction, a sensitive coefficient of each of the quality monitoring indicators for the type of the soil is determined;

[0111] Based on the sensitive coefficient of each of the quality monitoring indicators for the type of the soil, a coefficient processing is performed on the deviation of each of the quality monitoring indicators to obtain a deviation sensitive value of each of the quality monitoring indicators;

[0112] determine a proportion of each of the deviation sensitive values of the quality monitoring indicators in a total of the deviation sensitive values of all the quality monitoring indicators, to obtain a weight of the deviation of each of the quality monitoring indicators;

[0113] perform weighted summation on the deviations of the quality monitoring indicators based on the weights of each of the quality monitoring indicators, to obtain the final evaluation result of the screw anchor screwing construction.

[0114] Specifically, the result of the weighted summation on the deviations of the quality monitoring indicators is taken as a construction comprehensive deviation value, and after the construction comprehensive deviation value is calculated, the construction quality under the influence of various factors in the screw anchor screwing construction process is evaluated through the construction comprehensive deviation value. The final evaluation result of the screw anchor screwing construction is obtained.

[0115] In the embodiment, the calculation process of the final evaluation result of the screw anchor screwing construction satisfies the following formula:

[0116]

[0117] wherein σ represents the final evaluation result of the screw anchor screwing construction; ω T , ω θ , ω R respectively represent the weights of the deviations of the construction torque, the construction inclination angle and the footage ratio; σ T , σ θ , σ R respectively represent the deviations of the construction torque, the construction inclination angle and the footage ratio; α T , α θ , α R respectively represent the sensitive coefficients of the construction torque, the construction inclination angle and the footage ratio to the soil type; respectively represent the deviation sensitive values of the construction torque, the construction inclination angle and the footage ratio; represents the average value of the monitoring data of the construction torque, θ0 represents the design inclination angle of the screw anchor, represents the average value of the monitoring data of the footage ratio.

[0118] Specifically, the sensitive coefficients of each of the quality monitoring indicators to different soil types are different, for example: the sensitive coefficients of the construction torque, the construction inclination angle weight and the footage ratio in soft clay are respectively 0.5, 0.3 and 0.2; the sensitive coefficients in sand are respectively 0.3, 0.5 and 0.2; and the sensitive coefficients in gravel soil are respectively 0.2, 0.3 and 0.5.

[0119] By introducing the sensitive coefficients to the soil type, the deviation weight of the quality monitoring indicators can be dynamically adjusted following the type of the construction soil, so as to improve the accuracy and universality of the evaluation result.

[0120] Embodiment 2:

[0121] Based on the same inventive concept, the application also provides a spiral anchor screwing construction quality monitoring and evaluation device, as shown in the drawings, comprising: Figure 2

[0122] a data monitoring device arranged on the power head 1, a deviation calculation module in communication connection with the data monitoring device, and an evaluation module in communication connection with the deviation calculation module;

[0123] The data monitoring device is used to obtain corresponding monitoring data based on a plurality of preset quality monitoring indexes during the spiral anchor screwing construction process.

[0124] The deviation calculation module is used to calculate each monitoring data and the index reference value corresponding to each monitoring data to determine the deviation of each quality monitoring index; wherein the construction torque is included in the plurality of quality monitoring indexes; and the index reference value corresponding to the construction torque adopts a pre-obtained torque prediction value.

[0125] The evaluation module is used to determine the evaluation result of the spiral anchor screwing construction based on the deviation of each quality monitoring index.

[0126] In this embodiment, the data monitoring device comprises a torque monitor 2, an inclination monitor 3, and a footage ratio monitor, all of which are arranged on the power head 1.

[0127] In this embodiment, the footage ratio monitor comprises a laser range finder 4 arranged on the side of the power head 1 facing the construction ground and a screwing turn number monitoring device 5 arranged on the output shaft of the power head 1.

[0128] This device can directly or indirectly obtain the construction torque, construction inclination, burial depth, footage ratio, and other parameters of the spiral anchor screwing construction by monitoring the torque, inclination, distance, and screwing turn number, which facilitates the construction personnel to timely master the spiral anchor construction dynamics, standardize and adjust the construction process, and carry out the spiral anchor construction quality evaluation.

[0129] The device can be simply installed on the power equipment, i.e., the power head 1, or produced in an integrated manner, and the quality evaluation can be obtained through sensor data calculation when in use, which can be directly provided for reference of the construction personnel by using computer program algorithms and other processing methods.

[0130] Specifically, the torque module comprises a torque monitor 2, i.e., a torque sensor, which is installed on the output shaft of the power head 1 and rotates with the power shaft. The torque is conducted to the outside through the torque sensor, driving the spiral anchor to perform screwing construction, and the output torque of the power head 1 is monitored in real time during the construction process.

[0131] ​The inclination module comprises an inclination monitor 3, which is installed on the side of the power head 1 away from the ground, and uses a gyroscope or an inclination sensor to monitor the inclination angle during the construction of the screw anchor.

[0132] In this embodiment, the laser range finder 4 is hingedly connected to the power head 1, and a counterweight is arranged on the laser range finder 4, so that the laser emitted by the laser range finder 4 is perpendicular to the construction ground.

[0133] Specifically, the distance measuring module comprises a laser range finder 4, which is installed on the side of the power head 1 close to the ground, and uses vertical laser to measure the distance to the ground, the vertical height H, and calculates the distance L along the screw anchor axis according to the inclination value, and judges the screwing depth S of the screw anchor construction through the relative change value of L.

[0134] S = L - L0

[0135] Wherein, L represents the measured distance along the screw anchor axis, L0 represents the initial construction distance, H represents the distance measured by the laser range finder 4 in the vertical direction, H0 represents the initial vertical distance of construction, θ represents the inclination angle of the screw anchor, and S represents the depth of the screw anchor screwing into the soil.

[0136] The number of turns module comprises a screwing turn number monitoring device 5, which is divided into two parts, one part is fixed in the bottom shell of the power device, and the other part is fixed on the transmission shaft and rotates with it. When the sensing part on the transmission shaft moves in a circle, it repeatedly passes above the sensing part on the bottom shell, and the number of screwing turns N can be calculated.

[0137] Before the screw anchor foundation screwing construction, the monitoring device is installed on the power device (or directly integrated), and the torque, inclination, depth, and number of turns are monitored in real time during the screwing process. The data are processed in real time by a computer program to obtain the torque, inclination, footage, and burial depth information. The construction process curve is calculated and drawn by a data processing platform, with burial depth as the horizontal coordinate and torque, inclination, and footage as the vertical coordinate. After the construction is completed, the torque value, inclination deviation, footage ratio, and other parameters are calculated to serve as the basis for evaluating the quality of the screw anchor construction.

[0138] In this embodiment, the deviation calculation module is specifically used for:

[0139] Based on the monitoring data of the construction torque, the actual torque value at each screwing depth during the construction process is determined;

[0140] The actual torque value at each screwing depth during the construction process is linearly fitted without intercept, and the slope of the fitting curve is obtained;

[0141] The slope of the fitting curve is multiplied by the actual torque value at each screwing depth, respectively, to obtain a torque prediction value at each screwing depth.

[0142] In this embodiment, the deviation calculation module is specifically configured to:

[0143] Based on the actual torque value and the torque prediction value at each screwing depth, the root mean square error of the actual torque value and the torque prediction value at each screwing depth is calculated, and the deviation of the construction torque is obtained.

[0144] In this embodiment, the evaluation module comprises:

[0145] The limit judgment unit is configured to: based on the monitoring data of each quality monitoring index, obtain the monitoring data extreme value of each quality monitoring index; compare the monitoring data extreme value of each quality monitoring index with the preset limit value of each quality monitoring index, and judge whether the spiral anchor screwing construction meets the preset limit value requirement of each quality monitoring index.

[0146] The final evaluation unit is configured to: when the spiral anchor screwing construction meets the preset limit value requirement of all quality monitoring indexes, the preliminary evaluation result of the spiral anchor screwing construction is qualified, and the deviations of each quality monitoring index are weighted and summed to obtain the final evaluation result of the spiral anchor screwing construction; otherwise, the final evaluation result of the spiral anchor screwing construction is unqualified.

[0147] In this embodiment, the final evaluation unit is specifically configured to:

[0148] Based on the soil type of the spiral anchor screwing construction, the sensitivity coefficient of each quality monitoring index to the soil type is determined;

[0149] Based on the sensitivity coefficient of each quality monitoring index to the soil type, the deviation of each quality monitoring index is processed by coefficient to obtain the deviation sensitivity value of each quality monitoring index;

[0150] Based on the deviation sensitivity value of each quality monitoring index, the proportion of the deviation sensitivity value of each quality monitoring index in the total sum of the deviation sensitivity values of all quality monitoring indexes is determined to obtain the weight of the deviation of each quality monitoring index;

[0151] Based on the weight of each quality monitoring index, the deviations of each quality monitoring index are weighted and summed to obtain the final evaluation result of the spiral anchor screwing construction.

[0152] In this embodiment, the plurality of quality monitoring indexes further comprise: construction inclination and footage ratio.

[0153] In the embodiment, the calculation process of the final evaluation result of the screw anchor screwing construction satisfies the following formula:

[0154]

[0155] wherein, σ represents the final evaluation result of the screw anchor screwing construction; ω T , ω θ , ω R respectively represent the weight of the deviation of the construction torque, the construction inclination angle and the footage ratio; σ T , σ θ , σ R respectively represent the deviation of the construction torque, the construction inclination angle and the footage ratio; α T , α θ , α R respectively represent the sensitive coefficient of the construction torque, the construction inclination angle and the footage ratio to the soil type; respectively represent the sensitive value of the deviation of the construction torque, the construction inclination angle and the footage ratio; represents the average value of the monitoring data of the construction torque, θ0 represents the design inclination angle of the screw anchor, represents the average value of the monitoring data of the footage ratio.

[0156] Embodiment 3

[0157] As Figure 3 shown, the present application also provides an electronic device, which can be a computer device, a single-chip microcomputer device, a smart mobile device, etc. The electronic device in the embodiment can include a processor, a memory, a transceiver component, etc. The memory, the processor and the transceiver component are connected through a bus; the memory can be used to store an execution program, and the exemplary execution program can include instructions; the processor is used to execute the instructions stored in the memory. The memory can also be used to store data, which can be called and / or modified when the instructions are executed.

[0158] The processor can be a central processing unit (CPU), and can also be other general-purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like, which are a computing core and a control core of the terminal, and are suitable for implementing one or more instructions, and are specifically suitable for loading and executing one or more instructions in the storage medium to implement a corresponding method flow or a corresponding function, so as to implement the steps of the screw anchor screwing construction quality monitoring and evaluation method in the above embodiment.

[0159] Embodiment 4

[0160] Based on the same inventive concept, the application further provides a screw anchor screwing construction quality monitoring and evaluation method, device, equipment and medium readable storage medium, specifically an electronic equipment readable storage medium (Memory), which is a memory device in the electronic equipment, and is used for storing programs and data. It can be understood that the storage medium herein can include a built-in storage medium in the electronic equipment, and of course can also include an expansion storage medium supported by the electronic equipment. The storage medium provides a storage space, and the storage space stores an operating system of the terminal. Furthermore, one or more instructions suitable for being loaded and executed by the processor are stored in the storage space, and the instructions can be one or more execution programs (including program codes). It should be noted that the storage medium herein can be a high-speed RAM memory, or a non-volatile memory such as at least one disk memory. The processor loads and executes one or more instructions stored in the storage medium, and the steps of the screw anchor screwing construction quality monitoring and evaluation method in the above embodiment can be implemented.

[0161] Those skilled in the art should understand that the embodiments of the application can be provided as a method, a system, or a computer program product. Therefore, the application can adopt a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the application can adopt the form of a computer program product implemented on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program codes.

[0162] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 one or more flow or blocks

[0163] These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 one or more flow or blocks

[0164] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 one or more flow or blocks

[0165] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application and not to limit the protection scope thereof, although the present application has been described in detail with reference to the above examples, those skilled in the art should understand: after reading the present application, the skilled person can make various changes, modifications or equivalent replacements to the specific embodiments of the application, but these changes, modifications or equivalent replacements are all within the protection scope of the claims of the present application.

Claims

1. A method for monitoring and evaluating the quality of screw anchor screwing construction, characterized in that: include: During the screw anchor screwing construction process, corresponding monitoring data is obtained based on multiple preset quality monitoring indicators; Calculating each monitoring data with the corresponding index reference value of each monitoring data to determine the deviation of each quality monitoring index; wherein the multiple quality monitoring indicators include construction torque; the index reference value corresponding to the construction torque adopts a pre-acquired torque prediction value; An evaluation result of the screw anchor screwing construction is determined based on the deviations of the various quality monitoring indicators.

2. The method according to claim 1, wherein The process of obtaining the torque prediction value includes: Determining the actual torque value at each screwing depth during the construction process based on the monitoring data of the construction torque; With the screwing depth as the abscissa and the torque value as the ordinate, a no-intercept linear fit is performed on the actual torque values ​​at each screwing depth during the construction process to obtain the slope of the fitting curve; The slope of the fitting curve is multiplied by the actual torque value at each screwing depth to obtain the torque prediction value at each screwing depth.

3. The method according to claim 2, wherein The deviation of the construction torque includes the following acquisition process: Based on the actual torque value and the torque prediction value at each screwing depth, the root mean square error between the actual torque value and the torque prediction value at each screwing depth is calculated to obtain the deviation of the construction torque.

4. The method according to any one of claims 1 to 3, wherein The evaluation result of the screw anchor screwing construction is determined based on the deviation of each quality monitoring indicator, including: Based on the monitoring data of each quality monitoring indicator, obtaining the monitoring data extreme value of each quality monitoring indicator; Comparing the monitoring data extreme value of each quality monitoring indicator with the preset limit value of each quality monitoring indicator to determine whether the screw anchor screwing construction meets the preset limit value requirements of each quality monitoring indicator; When the spiral anchor tightening construction meets the preset limit requirements of all quality monitoring indicators, the preliminary evaluation result of the spiral anchor tightening construction is qualified, and the deviations of each quality monitoring indicator are weighted and summed to obtain the final evaluation result of the spiral anchor tightening construction; otherwise, the final evaluation result of the spiral anchor tightening construction is unqualified.

5. The method according to claim 4, wherein The weighted summation of the deviations of the various quality monitoring indicators is performed to obtain the final evaluation result of the screw anchor screwing construction, including: Determining the sensitivity coefficient of each of the quality monitoring indicators to the soil type based on the soil type in which the spiral anchor is screwed; Based on the sensitivity coefficient of each quality monitoring indicator to the soil type, coefficient processing is performed on the deviation of each quality monitoring indicator to obtain the deviation sensitivity value of each quality monitoring indicator; Based on the deviation sensitivity value of each quality monitoring indicator, determining the proportion of the deviation sensitivity value of each quality monitoring indicator in the sum of the deviation sensitivity values ​​of all quality monitoring indicators, and obtaining the deviation weight of each quality monitoring indicator; Based on the weight of each quality monitoring indicator, the deviations of the respective quality monitoring indicators are weighted and summed to obtain a final evaluation result of the screw anchor screwing construction.

6. The method according to claim 5, wherein The multiple quality monitoring indicators also include: construction inclination angle and footage ratio.

7. The method according to claim 6, wherein The calculation process of the final evaluation result of the spiral anchor screwing construction satisfies the following formula: Wherein, σ represents the final evaluation result of the screw anchor screwing construction; ω T 、ω θ 、ω R Respectively represent the weights of the deviations of construction torque, construction inclination angle and footage ratio; σ T , σ θ , σ R They represent the deviations of construction torque, construction inclination angle and footage ratio respectively; α T , α θ , α R They represent the sensitivity coefficients of construction torque, construction inclination angle and footage ratio to the soil type; They represent the deviation sensitivity values ​​of construction torque, construction inclination angle and footage ratio respectively; represents the average value of monitoring data of construction torque, θ0 represents the designed inclination angle of the screw anchor, Indicates the average value of monitoring data of footage ratio.

8. A device for monitoring and evaluating the quality of screw anchor screwing construction, characterized in that: include: A data monitoring device provided on the power head (1), a deviation calculation module communicatively connected to the data monitoring device, and an evaluation module communicatively connected to the deviation calculation module; The data monitoring device is used to obtain corresponding monitoring data based on a plurality of preset quality monitoring indicators during the screw anchor screwing construction process; The deviation calculation module is used to calculate each monitoring data and the index reference value corresponding to each monitoring data to determine the deviation of each quality monitoring index; wherein the multiple quality monitoring indicators include construction torque; the index reference value corresponding to the construction torque adopts a pre-acquired torque prediction value; The evaluation module is used to determine the evaluation result of the screw anchor screwing construction based on the deviation of each quality monitoring indicator.

9. The device according to claim 8, wherein The data monitoring device comprises a torque monitor (2), an inclination monitor (3) and a footage ratio monitor, all of which are arranged on the power head (1).

10. The device according to claim 9, wherein The footage ratio monitor comprises a laser rangefinder (4) arranged on the side of the power head (1) facing the construction ground, and a screw turn monitoring device (5) arranged on the output shaft of the power head (1).

11. The device according to claim 10, wherein The laser rangefinder (4) is hingedly connected to the power head (1), and a counterweight is provided on the laser rangefinder (4) so ​​that the laser emitted by the laser rangefinder (4) is perpendicular to the construction ground.

12. The device according to any one of claims 8 to 11, characterized in that The deviation calculation module is specifically used for: Determining the actual torque value at each screwing depth during the construction process based on the monitoring data of the construction torque; With the screwing depth as the abscissa and the torque value as the ordinate, a no-intercept linear fit is performed on the actual torque values ​​at each screwing depth during the construction process to obtain the slope of the fitting curve; The slope of the fitting curve is multiplied by the actual torque value at each screwing depth to obtain the torque prediction value at each screwing depth.

13. The device according to claim 12, wherein The deviation calculation module is specifically used for: Based on the actual torque value and the torque prediction value at each screwing depth, the root mean square error between the actual torque value and the torque prediction value at each screwing depth is calculated to obtain the deviation of the construction torque.

14. The device according to any one of claims 8 to 11, characterized in that The evaluation module includes: A limit judgment unit is used to obtain the monitoring data extreme value of each quality monitoring indicator based on the monitoring data of each quality monitoring indicator; compare the monitoring data extreme value of each quality monitoring indicator with the preset limit value of each quality monitoring indicator, and judge whether the screw anchor screwing construction meets the preset limit value requirements of each quality monitoring indicator; The final evaluation unit is used to determine that when the spiral anchor tightening construction meets the preset limit requirements of all quality monitoring indicators, the preliminary evaluation result of the spiral anchor tightening construction is qualified, and to perform weighted summation on the deviations of various quality monitoring indicators to obtain the final evaluation result of the spiral anchor tightening construction; otherwise, the final evaluation result of the spiral anchor tightening construction is unqualified.

15. The device according to claim 14, wherein The final evaluation unit is specifically used for: Determining the sensitivity coefficient of each of the quality monitoring indicators to the soil type based on the soil type in which the spiral anchor is screwed; Based on the sensitivity coefficient of each quality monitoring indicator to the soil type, coefficient processing is performed on the deviation of each quality monitoring indicator to obtain the deviation sensitivity value of each quality monitoring indicator; Based on the deviation sensitivity value of each quality monitoring indicator, determining the proportion of the deviation sensitivity value of each quality monitoring indicator in the sum of the deviation sensitivity values ​​of all quality monitoring indicators, and obtaining the deviation weight of each quality monitoring indicator; Based on the weight of each quality monitoring indicator, the deviations of the respective quality monitoring indicators are weighted and summed to obtain a final evaluation result of the screw anchor screwing construction.

16. The device according to claim 15, characterized in that The multiple quality monitoring indicators also include: construction inclination angle and footage ratio.

17. The device according to claim 16, wherein The calculation process of the final evaluation result of the spiral anchor screwing construction satisfies the following formula: Wherein, σ represents the final evaluation result of the screw anchor screwing construction; ω T 、ω θ 、ω R Respectively represent the weights of the deviations of construction torque, construction inclination angle and footage ratio; σ T , σ θ , σ R They represent the deviations of construction torque, construction inclination angle and footage ratio respectively; α T , α θ , α R They represent the sensitivity coefficients of construction torque, construction inclination angle and footage ratio to the soil type; They represent the deviation sensitivity values ​​of construction torque, construction inclination angle and footage ratio respectively; represents the average value of monitoring data of construction torque, θ0 represents the designed inclination angle of the screw anchor, Indicates the average value of monitoring data of footage ratio.

18. An electronic device, characterized in that: include: at least one processor and memory; The memory and the processor are connected via a bus; The memory is used to store one or more programs; When the one or more programs are executed by the at least one processor, a method for monitoring and evaluating the quality of spiral anchor screwing construction according to any one of claims 1 to 7 is implemented.

19. A readable storage medium, characterized in that An execution program is stored thereon, and when the execution program is executed, a method for monitoring and evaluating the quality of spiral anchor screwing construction as described in any one of claims 1 to 7 is implemented.

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