Vibroflotation pile construction method construction quality digitization system based on Beidou high-precision positioning

Abstract

The invention discloses a digitization system for construction quality of a vibroflotation pile construction method based on Beidou high-precision positioning, and relates to the technical field of vibroflotation construction. The digital interaction platform is in communication connection with a Beidou positioning module, a construction parameter monitoring module, a data transmission module, a quality evaluation early warning module, an alarm correction module and a construction data statistics module. According to the method, centimeter-level and even millimeter-level positioning precision is provided for the vibroflotation pile construction method by introducing the Beidou high-precision positioning system, the accuracy of construction point positions is greatly improved, a digital system can receive and process Beidou positioning data in real time, it is ensured that a pile machine is accurately aligned, personal errors are reduced, and meanwhile the construction efficiency is improved. The system monitors the construction progress and quality in real time, discovers and corrects the deviation in time, avoids reworking caused by inaccurate positioning or improper construction operation, and thus remarkably improves the construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of vibro-impact construction, and in particular to a vibro-impact pile construction quality digitization system based on Beidou high-precision positioning. Background Art

[0002] Vibroflotation pile construction is a foundation reinforcement technology commonly used in foundation construction, especially suitable for the improvement of soft soil or loose soil. Through the action of vibration and impact force, the pile body forms a good bond with the surrounding soil, thereby improving the bearing capacity of the foundation. It has high construction efficiency and a wide range of applications. With the in-depth implementation of the "new infrastructure" development strategy and the rapid development of the digital economy, the field of engineering construction is undergoing an unprecedented digital transformation. Traditional construction methods have problems such as low efficiency, high cost, and difficulty in ensuring quality. The emergence of digital construction technology provides a possibility for solving these problems. Digital construction relies on basic platforms such as geographic information systems, construction site data acquisition systems, and construction site machinery control systems. By combining two-way communication technology and integrating construction site information resources, it can achieve real-time management and precise control of single, multiple, or even entire construction site construction machinery, thereby achieving the goals of reducing costs, reducing manpower, improving efficiency, ensuring quality, and optimizing management.

[0003] In the existing technology, the traditional pile positioning method relies on manual measurement and layout, which is easily affected by measurement errors, human factors and environmental conditions, and will lead to pile position deviation, insufficient pile depth or excessive construction in the vibratory pile construction process, thereby affecting the bearing capacity and overall stability of the foundation. Therefore, how to use Beidou high-precision positioning technology to obtain the three-dimensional coordinate information of the pile driver in real time, and issue an alarm when quality problems or deviations occur in the pile foundation, so as to correct the problems in the vibratory pile construction process, is the problem we need to solve. To this end, a digital construction quality system for vibratory pile construction method based on Beidou high-precision positioning is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a vibro-impact pile construction quality digitization system based on Beidou high-precision positioning to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The digital system for construction quality of vibro-impact pile construction method based on Beidou high-precision positioning includes a digital interactive platform, which is communicatively connected with a Beidou positioning module, a construction parameter monitoring module, a data transmission module, a quality assessment and early warning module, an alarm correction module, and a construction data statistics module, wherein the modules are connected by electrical signals;

[0007] The digital interactive platform centrally manages and analyzes construction data through the cloud platform, supports daily / vehicle workload statistics and point construction situation statistics, provides full traceability and data analysis of the construction process, and supports scientific decision-making in project management;

[0008] The Beidou positioning module obtains the three-dimensional coordinate information of the vibratory pile driver in real time through the Beidou positioning system, accurately determines the position of the pile, reduces the errors of manual measurement and line laying, improves the accuracy and reliability of pile positioning, and ensures the accurate arrangement of the pile;

[0009] The construction parameter monitoring module is used to monitor the hole position, drilling depth and vibrator status during the construction process of the vibratory pile method to analyze whether there is any deviation;

[0010] The data transmission module transmits the monitoring data to the vehicle terminal and the digital interactive platform in real time through the wireless data transmission module, so as to realize the real-time monitoring and remote viewing of the data, and facilitate the construction management and decision-making;

[0011] The quality assessment and early warning module evaluates the construction quality based on the real-time collected data and the preset quality standards, analyzes the degree of deviation of the construction quality, and issues corresponding alarms according to the degree of deviation, so as to timely discover construction quality problems, avoid insufficient foundation bearing capacity caused by deviation, and improve the controllability and stability of construction quality;

[0012] The alarm correction module, in combination with the construction quality assessment results, responds to the alarm issued by the quality assessment warning module regarding the quality problems or deviations in the pile foundation, and provides correction suggestions to guide construction personnel to adjust construction strategies in a timely manner, reduce construction risks, prevent problems from expanding, and ensure construction quality and progress;

[0013] The construction data statistics module is used to count the workload of each day / vehicle, record the construction site conditions, and transmit them to the digital interactive platform, providing visual data of construction progress and quality to facilitate management and evaluation of construction effects.

[0014] A further improvement of the technical solution of the present invention is that: the construction parameter monitoring module includes a hole position deviation monitoring unit, a drilling depth monitoring unit and a contrast monitoring unit, wherein the electrical signals between the units are connected;

[0015] The hole position deviation monitoring unit is used to monitor the deviation between the drilling position and the designed position in real time, and realize the real-time comparison of the coordinates of the vibratory pile center and the point designed position through the Beidou positioning directional antenna, calculate the hole position deviation measurement, and timely discover the pile position deviation, which is convenient for construction personnel to make adjustments and ensure the construction quality;

[0016] The drilling depth monitoring unit, combined with the Beidou altitude antenna and the dual-axis tilt sensor, monitors the drilling depth in real time and compensates for the depth deviation caused by the non-vertical state of the vibrating pile, ensuring that the pile depth meets the design requirements, avoiding the problem of insufficient pile depth or excessive construction, and improving the bearing capacity of the foundation;

[0017] The contrast monitoring unit monitors the contrast times and reverse plugging current of the vibrator through the current sensor of the controller, determines the working status of the vibrator, ensures the normal operation of the vibrator, promptly discovers equipment abnormalities, ensures that construction parameters meet design requirements, improves pile quality, and avoids construction quality problems.

[0018] A further improvement of the technical solution of the present invention is that the Beidou positioning module specifically includes:

[0019] A Beidou positioning system is installed on the vibratory pile driver, including a Beidou integrated terminal, a Beidou positioning directional antenna, a Beidou height-fixing antenna, and a dual-axis tilt sensor. The Beidou positioning directional antenna is installed on the crane counterweight of the pile driver and connected to the Beidou integrated terminal in the cab via a wired connection. The Beidou height-fixing antenna and the dual-axis tilt sensor are installed above the vibratory pile to monitor the posture (i.e., tilt) and elevation (i.e., height) of the vibratory pile in real time.

[0020] Set up and power a fixed base station near the construction site in advance. The fixed base station covers a range of about 3-5 kilometers and serves as a differential base station to achieve centimeter-level positioning accuracy. The differential technology eliminates most errors and improves positioning accuracy by comparing the satellite signals received by the base station and the mobile station.

[0021] The Beidou positioning system receives the signal transmitted by the Beidou satellite and processes the signal, including calculating the time delay and solving the satellite coordinates, so as to determine the three-dimensional coordinate information of the vibratory pile driver;

[0022] The processed three-dimensional coordinate information is transmitted to the control system of the vibratory pile driver. In the control system of the vibratory pile driver, the pile position, angle and depth parameters set according to the engineering drawings and the actual situation on site are preset. The control system calculates the relative position relationship between the current position and the preset pile position based on the preset pile position parameters and the three-dimensional coordinate information obtained in real time.

[0023] According to the calculated relative position relationship, the control system can control the movement and adjustment of the vibratory pile driver so that it moves accurately to the preset pile position.

[0024] A further improvement of the technical solution of the present invention is that the construction parameter monitoring module specifically includes:

[0025] The hole position deviation monitoring unit integrates the three-dimensional coordinate information of the vibratory pile center obtained in real time by the Beidou positioning directional antenna, and compares the coordinates of the vibratory pile center with the coordinates of the point design position in real time. The system analyzes the hole position deviation between the current drilling position and the design position, and then displays the hole position deviation in real time on the vehicle terminal, so as to detect the pile position deviation in time and improve the accuracy of pile position arrangement;

[0026] The drilling depth monitoring unit uses the Beidou altitude-fixing antenna and dual-axis inclination sensor to monitor the elevation and posture of the vibrating pile in real time, calculate the drilling depth, and analyze whether the vibrating pile is in a non-vertical state, thereby compensating for the depth deviation caused by the non-vertical state of the vibrating pile to ensure that the pile depth meets the design requirements, avoid the problem of insufficient pile depth or excessive construction, improve the bearing capacity of the foundation, and ensure the quality and safety of the project;

[0027] The contrast monitoring unit monitors the contrast times and reverse plugging current of the vibrator through the current sensor, determines whether the working state of the vibrator is normal based on the monitoring data, and analyzes the contrast deviation based on the reverse plugging current and times data, and then adjusts the vibration parameters to ensure that the construction process meets the design requirements and avoids quality problems;

[0028] The hole position, drilling depth and vibrator status data monitored in real time by the construction parameter monitoring module during the vibratory pile construction process are integrated, and the acquired data are compared and analyzed with the preset design parameters to calculate the key indicators of hole position deviation, drilling depth deviation and contrast deviation, and then analyze whether the deviation is within the allowable range. Among them, for the hole position deviation, if the deviation exceeds the preset allowable range, the system will issue an alarm to remind the construction personnel to make adjustments. The construction personnel can adjust the position of the pile driver in time according to the deviation value to ensure the accuracy of the pile position arrangement. For the drilling depth deviation, if the drilling depth is insufficient or over-constructed, the system will issue an alarm to remind the construction personnel to adjust the drilling depth to ensure the bearing capacity of the foundation and the safety of the project. For the working status of the vibrator, if the current data is abnormal (the reverse plug current is too high or too low), the system will issue an alarm to prompt the construction personnel to check the equipment to avoid equipment damage or construction quality problems.

[0029] A further improvement of the technical solution of the present invention is that the quality assessment warning module specifically includes:

[0030] Soil parameter data during the construction process, including soil moisture, compaction and bearing capacity, are collected through sensors and monitoring equipment. The construction data including hole position deviation, drilling depth deviation and contrast deviation obtained through analysis by the construction parameter monitoring module are integrated to form a complete construction quality data set.

[0031] The statistical analysis method of the standard deviation method is used to analyze the construction data (hole position deviation value, drilling depth deviation value and contrast deviation value) and soil parameter data (soil moisture, compaction degree and bearing capacity). The average value of each group of data is calculated as the benchmark of construction quality. Then, the standard deviation is obtained by calculating the square root of the average of the sum of the squares of the difference between each data point and the average value. The standard deviation reflects the degree of data dispersion. The larger the standard deviation, the greater the data fluctuation and the worse the stability of construction quality.

[0032] Compare and analyze the calculated standard deviation with the preset quality standard, calculate the construction quality deviation rate, and analyze the overall deviation degree of the construction quality based on the deviation rate;

[0033] The potential risk of construction quality problems is assessed according to the degree of deviation, and corresponding alarms are issued according to the results of the quality assessment, including minor deviation alarms, serious deviation alarms and fault alarms. When the deviation rate is between 5% and 10%, a minor deviation alarm is issued; when the deviation rate exceeds 10%, a serious deviation alarm is issued; when the deviation rate exceeds 20%, or the vibrator is in abnormal working condition, a fault alarm is issued.

[0034] A further improvement of the technical solution of the present invention is that the calculation formula of the construction quality deviation rate is as follows:

[0035]

[0036] Where QDR is the construction quality deviation rate, SD is the standard deviation of the current calculation, and SD ref is the preset quality standard deviation, determined according to the design requirements, is the actual value of the jth data point, is the mean value of the data, m is the total number of data points, SD prev is the standard deviation of the previous calculation, which is used to introduce a dynamic adjustment factor. It should be noted that when SD is close to 0, the data is concentrated and the fluctuation is small. When SD increases, the data fluctuation is large. As the dispersion of data points increases, SD increases. When data points are close to the average value, SD decreases. When QDR is close to 0, the construction quality is stable and meets the design requirements. When QDR increases, the deviation of construction quality increases. When SD is close to SD ref When , QDR is close to 0%.

[0037] A further improvement of the technical solution of the present invention is that the alarm correction module specifically includes:

[0038] The alarm correction module receives the alarm information from the quality assessment and early warning module in real time, and classifies and identifies the received alarms, determines the alarm type (slight deviation alarm, severe deviation alarm, fault alarm) and the specific problems involved (hole position deviation, insufficient drilling depth, abnormal vibrator working state);

[0039] Combine the real-time collected construction data (hole position deviation value, drilling depth deviation value, contrast deviation value) and soil parameter data (soil moisture, compaction, bearing capacity) to analyze the specific cause of the alarm;

[0040] Generate targeted corrective suggestions based on the alarm type and analysis results, and issue the corrective suggestions to construction personnel in the form of instructions, clarifying the corrective goals, steps and requirements;

[0041] Supervise the execution of construction personnel to ensure that corrective measures are implemented correctly and in a timely manner. After the corrective measures are implemented, analyze the correction effects, re-measure the hole position deviation value and drilling depth to confirm whether the problem has been solved, and then feed back the evaluation results to the quality assessment and early warning module to update the construction data and quality assessment results.

[0042] A further improvement of the technical solution of the present invention is that the targeted correction suggestions specifically include:

[0043] For minor deviation alarms, the hole position deviation adjustment suggestion is to fine-tune the pile driver position and recalibrate the Beidou positioning system. The drilling depth deviation adjustment suggestion is to adjust the drilling depth parameters to ensure that the drilling depth meets the design requirements. The contrast deviation adjustment suggestion is to fine-tune the vibration parameters (current, reverse insertion times) to ensure the normal operation of the vibrator. The construction strategy is to continue construction, but the monitoring frequency needs to be strengthened to ensure that the deviation does not expand.

[0044] For severe deviation alarms, the hole position deviation adjustment suggestion is to suspend construction, re-stake out the pile position and recalibrate the equipment positioning. The drilling depth deviation adjustment suggestion is to check the vibration pile posture and equipment failure, and re-drill if necessary. The contrast deviation adjustment suggestion is to check the cause of abnormal vibrator current, repair the equipment or adjust the construction parameters. The construction strategy is to suspend the relevant construction area, carry out local rectification, and continue construction after ensuring that the construction quality meets the requirements;

[0045] For fault alarms, the recommendation for adjusting the hole position deviation is to comprehensively check the Beidou positioning system and the equipment installation status, and recalibrate or replace the equipment if necessary. The recommendation for adjusting the drilling depth deviation is to check the vibration piles and drilling equipment, and repair or replace the faulty parts. The recommendation for adjusting the contrast deviation is to check the vibrator circuit and mechanical parts, repair the equipment and re-debug. The construction strategy is to suspend construction, conduct a comprehensive inspection and rectification, and ensure that the equipment operates normally and the construction quality meets the requirements before continuing the construction.

[0046] A further improvement of the technical solution of the present invention is that the construction data statistics module specifically includes:

[0047] Through sensors and monitoring systems on construction equipment, daily / vehicle workload data is collected in real time. The number of construction sites, number of vibratory piles and cumulative construction time completed each day are counted by date. The workload of each vehicle is counted by construction vehicle, which is convenient for evaluating equipment utilization and construction efficiency.

[0048] Record the construction information of each construction point, including the pile coordinates, drilling depth, reverse insertion times, and current value, and mark the construction status of each point. The construction status is completed, pending rectification, and rectified, which is convenient for tracking the construction progress;

[0049] Conduct statistical analysis on soil moisture, compaction and bearing capacity parameters to obtain statistical indicators of mean value and standard deviation, and then analyze the distribution of soil parameters, identify abnormal points or areas, and provide a basis for construction adjustments;

[0050] The collected data is stored in real time in the vehicle terminal to ensure the integrity and security of the data, and the data is synchronously uploaded to the cloud database of the digital interactive platform through the data transmission module to facilitate subsequent analysis and query.

[0051] A further improvement of the technical solution of the present invention is that the digital interactive platform specifically includes:

[0052] Generate construction progress charts through the digital interactive platform, including daily workload bar charts, cumulative workload line charts and construction point distribution charts, and generate daily construction progress reports to display the number of completed points, the number of remaining points and the percentage of construction progress;

[0053] Generate a construction quality heat map to intuitively display the quality status of the construction points through color changes, and display key indicator statistical charts of construction quality including hole position deviation value, drilling depth deviation value, and contrast deviation value to identify quality problem areas;

[0054] Generate soil parameter distribution map to show the soil condition distribution at the construction site, and display the parameters of soil moisture, compaction and bearing capacity to analyze parameter change trends and provide a basis for construction adjustments;

[0055] Based on the acquired construction data, analyze the changing trends of construction progress and quality indicators, identify potential problems or risk points, compare and analyze the actual construction data with the design requirements, evaluate the compliance of construction quality, identify abnormal points or areas in the construction data, analyze the causes of abnormalities, and provide a basis for rectification;

[0056] Through the digital interactive platform, construction data is shared with project managers, construction personnel and supervision units to facilitate collaborative management and decision-making, and construction progress and quality information is pushed through APP or text messages to ensure that all parties are kept abreast of construction dynamics.

[0057] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0058] 1. The present invention provides a digital construction quality system for vibratory pile construction method based on Beidou high-precision positioning. By introducing the Beidou high-precision positioning system, the vibratory pile construction method is provided with centimeter-level or even millimeter-level positioning accuracy, which greatly improves the accuracy of construction points. The digital system can receive and process Beidou positioning data in real time to ensure accurate positioning of the pile driver and reduce human errors. At the same time, the system monitors the construction progress and quality in real time, promptly discovers and corrects deviations, avoids rework caused by inaccurate positioning or improper construction operations, and thus significantly improves construction efficiency.

[0059] 2. The present invention provides a digital construction quality system for vibratory pile construction method based on Beidou high-precision positioning. By integrating Beidou positioning data and construction data, it realizes the visual management of construction quality, and can display the completion status of construction progress, various indicators of construction quality and the specific locations of construction points in real time, so that managers can understand the situation of the construction site intuitively and comprehensively, which not only improves the managers' control over the construction site, but also facilitates the timely discovery and resolution of construction quality problems. Moreover, through the system's data analysis and early warning functions, managers can promptly discover abnormal conditions and potential risks in the construction process, and take corresponding measures to intervene and adjust, thereby ensuring the stability and reliability of construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0061] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0062] Figure 2 It is a schematic diagram of the system function modules of the present invention;

[0063] Figure 3 This is a schematic diagram of the workflow of the construction parameter monitoring module of the present invention;

[0064] Figure 4 Schematic diagram of the workflow of the quality assessment early warning module of the present invention. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0066] Embodiment 1, as Figures 1 to 3 As shown, the present invention provides a digital system for the construction quality of vibratory pile construction method based on Beidou high-precision positioning, including a digital interactive platform, the digital interactive platform is communicatively connected with a Beidou positioning module, a construction parameter monitoring module, a data transmission module, a quality assessment and early warning module, an alarm correction module and a construction data statistics module, wherein the modules are connected by electrical signals;

[0067] The digital interactive platform centrally manages and analyzes construction data through the cloud platform, supports daily / vehicle workload statistics and point construction situation statistics, provides full traceability and data analysis of the construction process, and supports scientific decision-making in project management;

[0068] Beidou positioning module, through the Beidou positioning system to obtain the three-dimensional coordinate information of the vibratory pile driver in real time, accurately determine the position of the pile, reduce the error of manual measurement and line laying, improve the accuracy and reliability of pile positioning, ensure the accurate arrangement of the pile, install the Beidou positioning system on the vibratory pile driver, including Beidou integrated terminal, Beidou positioning directional antenna, Beidou height-fixing antenna and dual-axis tilt sensor, among which, Beidou positioning directional antenna is installed on the crane counterweight of the pile driver and connected to the Beidou integrated terminal in the driving building by wire. Beidou height-fixing antenna and dual-axis tilt sensor are installed above the vibrating pile for real-time monitoring of the posture (i.e. inclination) and elevation (i.e. height) of the vibratory pile. Set up and power a fixed base station in advance near the construction site. The fixed base station covers a range of about 3-5 kilometers. It is used as a differential base station to achieve centimeter-level positioning accuracy. The differential technology compares the base station and the mobile station. The received satellite signals eliminate most errors and improve positioning accuracy. The Beidou positioning system receives the signals transmitted by the Beidou satellite and processes the signals, including calculating the time delay and solving the satellite coordinate steps, so as to determine the three-dimensional coordinate information of the vibratory pile driver. The processed three-dimensional coordinate information is transmitted to the control system of the vibratory pile driver. In the control system of the vibratory pile driver, the pile position, angle and depth parameters set according to the engineering drawings and the actual situation on site are preset. The control system calculates the relative position relationship between the current position and the preset pile position based on the preset pile position parameters and the three-dimensional coordinate information obtained in real time. Based on the calculated relative position relationship, the control system can control the movement and adjustment of the vibratory pile driver to accurately move to the preset pile position. During the movement and adjustment process, the Beidou positioning system continuously provides high-precision positioning information to ensure the accuracy and reliability of pile positioning.

[0069] The construction parameter monitoring module is used to monitor the hole position, drilling depth and vibrator status during the construction process of the vibratory pile method to analyze whether there is a deviation. The construction parameter monitoring module includes a hole position deviation monitoring unit, a drilling depth monitoring unit and a contrast monitoring unit, wherein the electrical signals between the units are connected; the hole position deviation monitoring unit is used to monitor the deviation between the drilling position and the design position in real time, and through the Beidou positioning directional antenna, realize the real-time comparison of the coordinates of the center of the vibratory pile and the point design position, calculate the hole position deviation measurement, and timely discover the pile position deviation, so that the construction personnel can make adjustments to ensure the construction quality. The drilling depth monitoring unit, combined with the Beidou height determination antenna and the dual-axis inclination sensor, monitors the drilling depth in real time and compensates for the depth deviation caused by the non-vertical state of the vibratory pile, ensuring that the pile depth meets the design requirements, avoiding the problem of insufficient pile depth or excessive construction, and improving the bearing capacity of the foundation. The contrast monitoring unit monitors the contrast times and reverse plug current of the vibrator through the current sensor of the controller, judges the working status of the vibrator, ensures the normal operation of the vibrator, and promptly discovers equipment abnormalities to ensure that the construction parameters meet the design requirements, improve the quality of the pile, and avoid construction quality problems;

[0070] The construction parameter monitoring module specifically includes:

[0071] The hole position deviation monitoring unit integrates the three-dimensional coordinate information of the vibratory pile center obtained in real time by the Beidou positioning directional antenna, and compares the coordinates of the vibratory pile center with the coordinates of the point design position in real time. The system analyzes the hole position deviation between the current drilling position and the design position, and then displays the hole position deviation in real time on the vehicle terminal, so as to promptly detect the pile position deviation and improve the accuracy of the pile position arrangement. The drilling depth monitoring unit uses the Beidou altitude antenna and dual-axis inclination sensor to monitor the elevation and posture of the vibratory pile in real time, calculate the drilling depth, and analyze whether the vibratory pile is in a non-vertical state, and then compensate for the depth deviation caused by the non-vertical state of the vibratory pile to ensure that the pile depth meets the design requirements, avoid the problem of insufficient pile depth or excessive construction, improve the bearing capacity of the foundation, and ensure the quality and safety of the project. The contrast monitoring unit monitors the contrast number and reverse plugging current of the vibrator through the current sensor, judges whether the working state of the vibrator is normal according to the monitoring data, and analyzes the contrast according to the reverse plugging current and number data. Deviation, and then adjust the vibration parameters to ensure that the construction process meets the design requirements and avoid quality problems. The hole position, drilling depth and vibrator status data monitored in real time by the construction parameter monitoring module during the vibratory pile construction process are integrated, and the acquired data is compared and analyzed with the preset design parameters to calculate the key indicators of hole position deviation value, drilling depth deviation value and contrast deviation value, and then analyze whether the deviation is within the allowable range. Among them, for the hole position deviation, if the deviation exceeds the preset allowable range, the system will issue an alarm to remind the construction personnel to make adjustments. The construction personnel can adjust the position of the pile driver in time according to the deviation value to ensure the accuracy of the pile position arrangement. For the drilling depth deviation, if the drilling depth is insufficient or over-constructed, the system will issue an alarm to remind the construction personnel to adjust the drilling depth to ensure the bearing capacity of the foundation and the safety of the project. For the working status of the vibrator, if the current data is abnormal (the reverse plug current is too high or too low), the system will issue an alarm to remind the construction personnel to check the equipment to avoid equipment damage or construction quality problems;

[0072] The calculation formula of hole position deviation is as follows:

[0073]

[0074] Where P dev is the hole position deviation value, which refers to the distance deviation between the actual hole position and the designed hole position, taking into account the deviation in the horizontal and vertical directions. act , Y act , Z act is the three-dimensional coordinate of the actual hole position, X des , Y des , Z des is the three-dimensional coordinate of the designed hole position, L is the designed drilling depth, which is used to normalize the vertical deviation.dev When it is close to 0, it means the hole position accuracy is high. dev When it increases, it means that the hole position deviation is large and needs to be adjusted. dev If the position exceeds the preset range of ±2cm, the system will sound an alarm to remind the construction personnel to adjust the position of the pile driver;

[0075] The calculation formula of drilling depth deviation value is as follows:

[0076]

[0077] Where D dev is the drilling depth deviation value, which refers to the deviation between the actual drilling depth and the designed depth. Considering the tilt compensation of the vibrating pile, H act is the actual drilling depth, L is the designed drilling depth, θ is the inclination angle of the vibrating pile, when D dev When it is close to 0, it means that the drilling depth meets the design requirements. dev When it increases, it means that the depth deviation is large and needs to be adjusted. dev If the depth exceeds the preset range of ±10cm, the system will sound an alarm to remind the construction workers to adjust the drilling depth;

[0078] The calculation formula of contrast deviation value is as follows:

[0079]

[0080] In the formula, C dev The contrast deviation value refers to the deviation between the actual reverse plug current and the designed current. Combined with the reverse plug times, a comprehensive evaluation is performed. act，i is the actual current of the i-th reverse insertion, I des For the design reverse plug current, N act is the actual number of reverse insertions, N des To design the number of reverse insertions, when C dev When it is close to 0, it means that the reverse plug current and times meet the design requirements. dev When it increases, it means that the current or frequency deviation is large and needs to be adjusted. dev If it exceeds the preset range, the system will sound an alarm, prompting the construction personnel to check the equipment or adjust the vibro-impact parameters;

[0081] Data transmission module: The monitoring data is transmitted to the vehicle terminal and digital interactive platform in real time through the wireless data transmission module, so as to realize real-time monitoring and remote viewing of data, and facilitate construction management and decision-making;

[0082] The quality assessment and early warning module evaluates the construction quality based on real-time collected data and preset quality standards, analyzes the degree of deviation in construction quality, and issues corresponding alarms based on the degree of deviation, so as to timely discover construction quality problems, avoid insufficient foundation bearing capacity caused by deviation, and improve the controllability and stability of construction quality;

[0083] The alarm correction module, combined with the construction quality assessment results, responds to the alarm issued by the quality assessment early warning module regarding quality problems or deviations in the pile foundation, and provides correction suggestions to guide construction personnel to adjust construction strategies in a timely manner, reduce construction risks, prevent problems from expanding, and ensure construction quality and progress;

[0084] The construction data statistics module is used to count the daily / vehicle workload, record the construction site conditions, and transmit them to the digital interactive platform, providing visual data on construction progress and quality to facilitate management and evaluation of construction results.

[0085] Embodiment 2, as Figure 4 As shown, based on Example 1, the present invention provides a technical solution: preferably, the quality assessment warning module specifically includes:

[0086] Soil parameter data during the construction process, including soil moisture, compaction and bearing capacity, are collected through sensors and monitoring equipment. The construction data including hole position deviation value, drilling depth deviation value and contrast deviation value obtained by the construction parameter monitoring module are integrated to form a complete construction quality data set. The construction data (hole position deviation value, drilling depth deviation value and contrast deviation value) and soil parameter data (soil moisture, compaction and bearing capacity) are analyzed using the statistical analysis method of the standard deviation method. The average value of each set of data is calculated as the benchmark for construction quality. The standard deviation is then obtained by calculating the square root of the average of the sum of the squares of the differences between each data point and the average value. The standard deviation reflects the degree of discreteness of the data. The larger the standard deviation, the greater the data fluctuation and the worse the stability of the construction quality. The calculated standard deviation is compared and analyzed with the preset quality standard to calculate the construction quality deviation rate. The overall deviation degree of the construction quality is analyzed based on the deviation rate. The potential risk of construction quality problems is evaluated based on the deviation degree, and then corresponding alarms are issued based on the results of the quality evaluation, including slight deviation alarms, severe deviation alarms and fault alarms. When the deviation rate is between 5% and 10%, a slight deviation alarm is issued. When the deviation rate exceeds 10%, a severe deviation alarm is issued. When the deviation rate exceeds 20%, or the vibrator is in an abnormal working state, a fault alarm is issued.

[0087] The calculation formula of construction quality deviation rate is as follows:

[0088]

[0089] Where QDR is the construction quality deviation rate, SD is the standard deviation of the current calculation, and SD ref is the preset quality standard deviation, determined according to the design requirements, is the actual value of the jth data point, is the mean value of the data, m is the total number of data points, SD prev is the standard deviation of the previous calculation, which is used to introduce a dynamic adjustment factor. It should be noted that when SD is close to 0, the data is concentrated and the fluctuation is small. When SD increases, the data fluctuation is large. As the dispersion of data points increases, SD increases. When data points are close to the average value, SD decreases. When QDR is close to 0, the construction quality is stable and meets the design requirements. When QDR increases, the deviation of construction quality increases. When SD is close to SD ref When QDR is close to 0%, SD is significantly greater than SD ref When , QDR increases, indicating that the construction quality deviation is large;

[0090] The alarm correction module specifically includes:

[0091] The alarm correction module receives the alarm information from the quality assessment and early warning module in real time, and classifies and identifies the received alarms, determines the alarm type (slight deviation alarm, severe deviation alarm, fault alarm) and the specific problems involved (hole position deviation, insufficient drilling depth, abnormal vibrator working state), and combines the real-time collected construction data (hole position deviation value, drilling depth deviation value, contrast deviation value) and soil parameter data (soil moisture, compaction degree, bearing capacity) to analyze the specific cause of the alarm, analyze whether the hole position deviation is caused by inaccurate equipment positioning or improper construction operation, check whether the drilling depth deviation is caused by the tilt of the vibrating pile or equipment failure, and judge whether it is caused by the vibrator. Contrast deviation caused by abnormal current or improper construction parameter setting, analyze whether the soil parameter abnormality that affects the construction quality is due to changes in soil conditions (humidity, compaction), generate targeted correction suggestions based on the alarm type and analysis results, and issue the confirmed correction suggestions to the construction personnel in the form of instructions, clarify the goals, steps and requirements of the correction, supervise the implementation of the construction personnel, ensure that the corrective measures are correctly and timely implemented, and after the corrective measures are implemented, analyze the correction effect, re-measure the hole position deviation value and drilling depth, confirm whether the problem has been solved, and then feed back the evaluation results to the quality assessment and early warning module to update the construction data and quality assessment results;

[0092] In addition, targeted corrective suggestions include:

[0093] For minor deviation alarms, the hole position deviation adjustment suggestion is to fine-tune the pile driver position and recalibrate the Beidou positioning system. The drilling depth deviation adjustment suggestion is to adjust the drilling depth parameters to ensure that the drilling depth meets the design requirements. The contrast deviation adjustment suggestion is to fine-tune the vibration parameters (current, number of reverse insertions) to ensure the normal operation of the vibrator. The construction strategy is to continue construction, but the monitoring frequency needs to be strengthened to ensure that the deviation does not expand. For serious deviation alarms, the hole position deviation adjustment suggestion is to suspend construction, re-stakeout the pile position and recalibrate the equipment positioning. The drilling depth deviation adjustment suggestion is to check the vibration pile posture and equipment failure, and re-drill if necessary. The contrast deviation adjustment suggestion is to check Check the cause of abnormal vibrator current, repair the equipment or adjust the construction parameters. The construction strategy is to suspend the relevant construction area, carry out local rectification, and continue construction after ensuring that the construction quality meets the requirements. For fault alarms, the adjustment of hole position deviation is recommended to comprehensively check the Beidou positioning system and equipment installation status, and recalibrate or replace the equipment if necessary. The adjustment of drilling depth deviation is recommended to check the vibration pile and drilling equipment, and repair or replace the faulty parts. The adjustment of contrast deviation is recommended to check the vibrator circuit and mechanical parts, repair the equipment and re-debug. The construction strategy is to suspend construction, conduct comprehensive inspection and rectification, and ensure that the equipment operates normally and the construction quality meets the requirements before continuing construction;

[0094] The construction data statistics module specifically includes:

[0095] Through sensors and monitoring systems on construction equipment, daily / vehicle workload data is collected in real time. The number of construction sites, number of vibratory piles and cumulative construction time completed daily are counted by date. The workload of each vehicle is counted by construction vehicle, which is convenient for evaluating equipment utilization and construction efficiency. The construction information of each construction site, including pile coordinates, drilling depth, number of reverse insertions and current value, is recorded, and the construction status of each site is marked. The construction status is completed, pending rectification and rectified, which is convenient for tracking construction progress. Statistical analysis is performed on parameters of soil moisture, compaction degree and bearing capacity, and statistical indicators of mean value and standard deviation are obtained. Then the distribution of soil parameters is analyzed, abnormal sites or areas are identified, and a basis is provided for construction adjustments. The collected data is stored in real time in the vehicle terminal to ensure the integrity and security of the data. The data is synchronously uploaded to the cloud database of the digital interactive platform through the data transmission module for subsequent analysis and query.

[0096] The digital interactive platform specifically includes:

[0097] Generate construction progress charts through the digital interactive platform, including daily workload bar charts, cumulative workload line charts and construction site distribution charts, and generate daily construction progress reports to display the number of completed sites, the number of remaining sites and the percentage of construction progress. Generate construction quality heat maps to intuitively display the quality status of construction sites through color changes, and display key indicator statistical charts of construction quality including hole position deviation value, drilling depth deviation value, and contrast deviation value to identify quality problem areas. Generate soil parameter distribution maps to display the distribution of soil conditions at the construction site, and display soil moisture, compaction degree and bearing capacity. Parameters are collected to analyze parameter change trends and provide a basis for construction adjustments. Based on the acquired construction data, the changing trends of construction progress and quality indicators are analyzed to identify potential problems or risk points. The actual construction data is compared and analyzed with the design requirements to evaluate the compliance of construction quality. Abnormal points or areas in the construction data are identified, the causes of abnormalities are analyzed to provide a basis for rectification. Through the digital interactive platform, the construction data is shared with project managers, construction personnel and supervision units to facilitate collaborative management and decision-making. The construction progress and quality information are pushed through APP or SMS to ensure that all parties are aware of the construction dynamics in a timely manner.

[0098] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. The construction quality digital system of vibro-impact pile construction method based on Beidou high-precision positioning includes a digital interactive platform, which is characterized by: The digital interactive platform is communicatively connected with a Beidou positioning module, a construction parameter monitoring module, a data transmission module, a quality assessment and early warning module, an alarm correction module, and a construction data statistics module, wherein electrical signals are connected between the modules; The Beidou positioning module obtains the three-dimensional coordinate information of the vibratory pile driver in real time through the Beidou positioning system to accurately determine the pile position; The construction parameter monitoring module is used to monitor the hole position, drilling depth and vibrator status during the construction process of the vibratory pile method to analyze whether there is any deviation; The quality assessment and early warning module evaluates the construction quality in combination with the preset quality standards, analyzes the degree of deviation of the construction quality, and issues corresponding alarms according to the degree of deviation; The alarm correction module, in combination with the construction quality assessment results, responds to the alarm issued by the quality assessment warning module regarding the quality problems or deviations in the pile foundation and provides correction suggestions; The construction data statistics module is used to count the workload of each day / vehicle, record the construction site conditions, and transmit them to the digital interactive platform.

2. According to claim 1, the vibro-impact pile construction quality digitization system based on Beidou high-precision positioning is characterized by: The construction parameter monitoring module includes a hole position deviation monitoring unit, a drilling depth monitoring unit and a contrast monitoring unit, wherein the electrical signals between the units are connected; The hole position deviation monitoring unit is used to monitor the deviation between the drilling position and the designed position in real time, and realize the real-time comparison of the coordinates of the vibratory pile center and the point designed position through the Beidou positioning directional antenna; The drilling depth monitoring unit, combined with the Beidou altitude determination antenna and the dual-axis tilt sensor, monitors the drilling depth in real time and compensates for the depth deviation caused by the non-vertical state of the vibrating pile; The contrast monitoring unit monitors the contrast times and reverse plugging current of the vibrator through the current sensor of the controller to judge the working state of the vibrator.

3. According to claim 2, the vibro-pile construction quality digitization system based on Beidou high-precision positioning is characterized by: The Beidou positioning module specifically includes: The Beidou positioning system is installed on the vibratory pile driver, including the Beidou integrated terminal, Beidou positioning directional antenna, Beidou height-fixing antenna and dual-axis tilt sensor. The Beidou positioning directional antenna is installed on the crane counterweight of the pile driver and connected to the Beidou integrated terminal in the cab via wired mode. The Beidou height-fixing antenna and dual-axis tilt sensor are installed above the vibratory pile to monitor the posture and elevation of the vibratory pile in real time. Set up and power a fixed base station near the construction site in advance. The fixed base station has a coverage range of about 3-5 kilometers and serves as a differential base station to achieve centimeter-level positioning accuracy. The Beidou positioning system receives the signal transmitted by the Beidou satellite and processes the signal, including calculating the time delay and solving the satellite coordinates, so as to determine the three-dimensional coordinate information of the vibratory pile driver; The processed three-dimensional coordinate information is transmitted to the control system of the vibratory pile driver. In the control system of the vibratory pile driver, the pile position, angle and depth parameters set according to the engineering drawings and the actual situation on site are preset. The control system calculates the relative position relationship between the current position and the preset pile position based on the preset pile position parameters and the three-dimensional coordinate information obtained in real time. According to the calculated relative position relationship, the control system can control the movement and adjustment of the vibratory pile driver to move it to a preset pile position.

4. The construction quality digitization system of vibro-impact pile construction method based on Beidou high-precision positioning according to claim 3 is characterized by: The construction parameter monitoring module specifically includes: The hole position deviation monitoring unit integrates the three-dimensional coordinate information of the vibratory pile center obtained in real time by the Beidou positioning directional antenna, and compares the coordinates of the vibratory pile center with the coordinates of the point design position in real time. The system analyzes the hole position deviation between the current drilling position and the design position, and then displays the hole position deviation in real time on the vehicle terminal; The drilling depth monitoring unit uses the Beidou altitude-fixing antenna and dual-axis inclination sensor to monitor the elevation and posture of the vibrating pile in real time, calculate the drilling depth, and analyze whether the vibrating pile is in a non-vertical state, thereby compensating for the depth deviation caused by the non-vertical state of the vibrating pile; The contrast monitoring unit monitors the contrast times and reverse plugging current of the vibrator through the current sensor, determines whether the working state of the vibrator is normal based on the monitoring data, and analyzes the contrast deviation based on the reverse plugging current and times data, and then adjusts the vibration parameters; The hole position, drilling depth and vibrator status data monitored in real time by the construction parameter monitoring module during vibratory pile construction are integrated, and the acquired data are compared and analyzed with the preset design parameters to calculate the key indicators of hole position deviation, drilling depth deviation and contrast deviation, and then analyze whether the deviation is within the allowable range.

5. According to claim 4, the vibro-impact pile construction quality digitization system based on Beidou high-precision positioning is characterized in that: The quality assessment early warning module specifically includes: Soil parameter data during the construction process, including soil moisture, compaction and bearing capacity, are collected through sensors and monitoring equipment. The construction data including hole position deviation, drilling depth deviation and contrast deviation obtained through analysis by the construction parameter monitoring module are integrated to form a complete construction quality data set. The construction data and soil parameter data were analyzed using the statistical analysis method of the standard deviation method. The average value of each set of data was calculated as the benchmark for construction quality. The standard deviation was then obtained by calculating the square root of the average of the sum of the squares of the differences between each data point and the average value. Compare and analyze the calculated standard deviation with the preset quality standard, calculate the construction quality deviation rate, and analyze the overall deviation degree of the construction quality based on the deviation rate; The potential risk of construction quality problems is assessed according to the degree of deviation, and corresponding alarms are issued according to the results of the quality assessment, including minor deviation alarms, serious deviation alarms and fault alarms. When the deviation rate is between 5% and 10%, a minor deviation alarm is issued; when the deviation rate exceeds 10%, a serious deviation alarm is issued; when the deviation rate exceeds 20%, or the vibrator is in abnormal working condition, a fault alarm is issued.

6. The construction quality digitization system of vibro-impact pile construction method based on Beidou high-precision positioning according to claim 5 is characterized in that: The calculation formula of the construction quality deviation rate is as follows: Where QDR is the construction quality deviation rate, SD is the standard deviation of the current calculation, and SD ref is the preset quality standard deviation, is the actual value of the jth data point, is the mean value of the data, m is the total number of data points, SD prev is the standard deviation of the previous calculation. It should be noted that when SD is close to 0, the data is concentrated and the fluctuation is small. When SD increases, the data fluctuation is large. When QDR is close to 0, the construction quality is stable and meets the design requirements. When QDR increases, the deviation of construction quality increases. When SD is close to SD ref When QDR is close to 0%.

7. The construction quality digitization system of vibro-impact pile construction method based on Beidou high-precision positioning according to claim 6 is characterized by: The alarm correction module specifically includes: The alarm correction module receives the alarm information from the quality assessment and early warning module in real time, and classifies and identifies the received alarms to determine the type of alarm and the specific issues involved; Combine the construction data and soil parameter data collected in real time to analyze the specific reasons for the alarm; Generate targeted corrective suggestions based on the alarm type and analysis results, and issue the corrective suggestions to construction personnel in the form of instructions, clarifying the corrective goals, steps and requirements; Supervise the execution of construction personnel, analyze the correction effect after the corrective measures are completed, re-measure the hole position deviation value and drilling depth to confirm whether the problem has been solved, and then feed back the evaluation results to the quality assessment and early warning module to update the construction data and quality assessment results.

8. The construction quality digitization system of vibro-impact pile construction method based on Beidou high-precision positioning according to claim 7 is characterized in that: The targeted corrective suggestions specifically include: For minor deviation alarms, the hole position deviation adjustment suggestion is to fine-tune the pile driver position and recalibrate the Beidou positioning system. The drilling depth deviation adjustment suggestion is to adjust the drilling depth parameters. The contrast deviation adjustment suggestion is to fine-tune the vibro-impact parameters. The construction strategy is to continue construction, but the monitoring frequency needs to be increased to ensure that the deviation does not expand. For severe deviation alarms, the hole position deviation adjustment suggestion is to suspend construction, re-stake out the pile position and recalibrate the equipment positioning. The drilling depth deviation adjustment suggestion is to check the vibration pile posture and equipment failure. The contrast deviation adjustment suggestion is to check the cause of abnormal vibrator current, repair the equipment or adjust the construction parameters. The construction strategy is to suspend the relevant construction area and carry out local rectification. For fault alarms, the adjustment suggestion for hole position deviation is to comprehensively check the Beidou positioning system and equipment installation status; the adjustment suggestion for drilling depth deviation is to check the vibration piles and drilling equipment, repair or replace the faulty parts; the adjustment suggestion for contrast deviation is to check the vibrator circuit and mechanical parts, repair the equipment and re-debug; the construction strategy is to suspend construction and conduct a comprehensive inspection and rectification.

9. The construction quality digitization system of vibro-pile construction method based on Beidou high-precision positioning according to claim 8 is characterized in that: The construction data statistics module specifically includes: Through sensors and monitoring systems on construction equipment, daily / vehicle workload data is collected in real time. The number of construction sites, number of vibrating piles and cumulative construction time completed each day are counted by date, and the workload of each vehicle is counted by construction vehicle. Record the construction information of each construction point, including the pile position coordinates, drilling depth, number of reverse insertions, and current value, and mark the construction status of each point, where the construction status is completed, pending rectification, and rectified; Conduct statistical analysis on soil moisture, compaction and bearing capacity parameters to obtain statistical indicators of mean value and standard deviation, and then analyze the distribution of soil parameters and identify abnormal points or areas; The collected data is stored in real time in the vehicle terminal, and is synchronously uploaded to the cloud database of the digital interactive platform through the data transmission module.

10. The construction quality digitization system of vibro-pile construction method based on Beidou high-precision positioning according to claim 9 is characterized in that: The digital interactive platform specifically includes: Generate construction progress charts through the digital interactive platform, including daily workload bar charts, cumulative workload line charts and construction point distribution charts, and generate daily construction progress reports to display the number of completed points, the number of remaining points and the percentage of construction progress; Generate a construction quality heat map, which visually displays the quality status of the construction points through color changes, and displays key indicator statistical charts of construction quality including hole position deviation value, drilling depth deviation value, and contrast deviation value; Generate soil parameter distribution maps to show the distribution of soil conditions at the construction site and display parameters of soil moisture, compaction and bearing capacity; Analyze the changing trends of construction progress and quality indicators based on the acquired construction data, identify potential problems or risk points, compare and analyze the actual construction data with the design requirements, evaluate the compliance of construction quality, identify abnormal points or areas in the construction data, and analyze the causes of the abnormalities; Through the digital interactive platform, construction data is shared with project managers, construction personnel and supervision units, and construction progress and quality information is pushed through APP or text messages.

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