A dynamic monitoring and evaluation method for asphalt concrete construction quality

Abstract

The present invention belongs to the technical field of construction quality monitoring and evaluation, and specifically discloses a method for dynamic monitoring and evaluation of asphalt concrete construction quality. The method monitors and evaluates the quality of the completed construction stage in real time during the construction of the asphalt concrete project, predicts and identifies changes in environmental conditions when the construction quality is evaluated to be up to standard, and then re-monitors the quality when the environmental conditions change, thereby realizing dynamic monitoring and evaluation of construction quality. It can not only timely discover quality problems caused by changes in environmental conditions during the construction process, so as to be able to make targeted construction adjustments to avoid further deterioration of quality problems, but also reduce the number and cost of rework, improve construction efficiency, and ensure that the entire construction process is carried out as planned. In addition, dynamic monitoring can enhance the transparency of construction quality. Through real-time monitoring and recording, reliable data support can be provided for project acceptance.

Description

Technical Field

[0001] The invention belongs to the technical field of construction quality monitoring and evaluation, and specifically discloses a method for dynamic monitoring and evaluation of asphalt concrete construction quality. Background Art

[0002] Asphalt concrete is widely used in pavements, airport runways, parking lots and other infrastructure that need to bear traffic loads. These facilities are not only an important part of the transportation network, but also directly affect traffic safety, driving comfort and the service life of the road. Therefore, it is very necessary to strictly monitor the construction quality of asphalt concrete.

[0003] In order to ensure the reliability and controllability of construction quality, the construction quality of asphalt concrete projects is currently usually monitored in real time. Specifically, the quality monitoring and evaluation of the current construction phase is carried out immediately after the current construction phase is completed. Only after confirming that the construction quality meets the standards will the next construction phase be entered.

[0004] However, the above-mentioned construction quality monitoring method mainly monitors the quality of the current construction stage based on the current environmental conditions. Even if the construction quality is judged to be up to standard, it is only up to standard under specific environmental conditions. However, changes in environmental conditions may cause changes in quality indicators. The stability of quality indicators is crucial to construction quality. However, the above-mentioned monitoring method does not fully consider the impact of changes in environmental conditions on quality indicators. If the next construction stage is entered immediately after the construction quality of the current construction stage is judged to be up to standard, on the one hand, it will lead to failure to timely identify the impact of environmental changes on quality indicators, and thus fail to timely discover potential quality problems; on the other hand, if the quality of the current construction stage deteriorates after the environmental conditions change, and it is not discovered and corrected in time, it may affect the quality of subsequent construction stages; on the other hand, if quality problems caused by changes in environmental conditions are found in subsequent inspections, rework is required, which will increase construction costs, cause delays in construction period, and may affect the schedule of the entire project. Summary of the invention

[0005] In order to solve the above-mentioned technical problems or at least partially solve the above-mentioned technical problems, the present application provides a method for dynamic monitoring and evaluation of asphalt concrete construction quality. By implementing dynamic monitoring, not only is monitoring carried out after the end of the current construction phase, but it is also necessary to continuously monitor changes in environmental conditions and quality indicators when entering the next construction phase, thereby enhancing the quality controllability of the entire construction process.

[0006] The purpose of the present invention can be achieved by the following technical scheme: A method for dynamic monitoring and evaluation of asphalt concrete construction quality, comprising the following steps: (1) dividing the construction process of the asphalt concrete project into construction stages and obtaining the quality indicators of each construction stage and the corresponding design construction period based on the construction design documents.

[0007] (2) Analyze the sensitive environmental conditions of quality indicators based on the quality indicators of each construction stage.

[0008] (3) After completing the current construction phase, the construction quality is monitored based on the quality indicators of that phase, and the sensitive environmental conditions of the corresponding quality indicators during monitoring are simultaneously recorded, and the actual construction duration of that phase is also recorded.

[0009] (4) Evaluate whether the construction quality meets the standards based on the construction quality monitoring results of the current construction stage. If the construction quality does not meet the standards, make construction adjustments. If the construction quality meets the standards, use the comparison results of the actual construction time of the current construction stage with the designed construction period to judge whether there is a surplus in the construction progress.

[0010] (5) If it is judged that the construction progress of the current construction phase has a surplus, execute (6)-(8); otherwise, execute (8).

[0011] (6) During the remaining construction period of the current construction phase, it is predicted whether the sensitive environmental conditions corresponding to the quality indicators change. If the sensitive environmental conditions are predicted to change, execute (7); otherwise, execute (8).

[0012] (7) Pause the entry into the next construction phase, and collect sensitive environmental conditions and identify changes in real time during the remaining construction period of the current construction phase, and then re-monitor the construction quality of the current construction phase when changes in sensitive environmental conditions are identified.

[0013] (8) Directly enter the next construction stage, and collect and identify changes in the quality indicators corresponding to the sensitive environmental conditions in the previous construction stage in real time during the construction process, and simultaneously obtain the quality indicators retained in the previous construction stage, and then re-monitor the quality indicators retained in the previous construction stage when changes in sensitive environmental conditions are identified.

[0014] (9) Evaluate the quality of the current construction phase based on the quality indicators after changes in sensitive environmental conditions. If the evaluation does not meet the standards, suspend the current construction and make adjustments.

[0015] The above-mentioned technical scheme provided by the embodiment of the present application has the following advantages compared with the prior art: 1. The present invention realizes dynamic monitoring and evaluation of construction quality by monitoring and evaluating the quality of the completed construction stage in real time during the construction of the asphalt concrete project, identifying the changes in environmental conditions when the construction quality is evaluated to be up to standard, and then re-monitoring the quality when the environmental conditions change, which can not only timely discover the quality problems caused by changes in environmental conditions during the construction process, so as to make targeted construction adjustments to avoid further deterioration of quality problems, but also reduce the number and cost of rework, improve construction efficiency, and ensure that the entire construction process is carried out as designed.

[0016] 2. When identifying changes in environmental conditions, the present invention targets environmental conditions that are sensitive to quality indicators instead of predicting and identifying changes in all environmental conditions. This can improve the pertinence of change identification, and can more accurately identify factors that truly affect construction quality, avoiding the distraction of attention and resources due to identifying too many insignificant environmental conditions. In addition, focusing on environmental conditions that are sensitive to quality indicators can improve the efficiency of change identification and quickly identify environmental changes that may lead to quality problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0018] Figure 1 The present invention is a flowchart of the steps for implementing the method.

[0019] Figure 2 The present invention is a flowchart for implementing sensitive environmental conditions for analyzing quality indicators. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 As shown, the present invention proposes a method for dynamic monitoring and evaluation of asphalt concrete construction quality, comprising the following steps: (1) dividing the construction process of the asphalt concrete project into construction stages and obtaining the quality indicators of each construction stage and the corresponding design construction period based on the construction design documents.

[0022] It needs to be understood that by dividing the construction process into different stages, each stage has clear quality control objectives and standards, which allows for targeted quality inspection and management, and helps refine management to ensure that quality control at each stage meets design requirements. At the same time, the stage division allows for a better arrangement of the construction schedule to ensure that each stage is carried out as designed.

[0023] In the specific example of the above scheme, when dividing the construction process of the asphalt concrete project into construction stages, it is taken into account that the construction objects of asphalt concrete include but are not limited to urban roads, highways, airport runways, parking lots, etc. Although these construction objects have different uses and service objects and different construction requirements, their construction processes are highly similar, and a general construction process can be followed when dividing the construction stages.

[0024] The construction stage is specifically divided into mixing stage, paving stage, compaction stage, joint treatment stage, etc.

[0025] The above-mentioned intermediate mixing stage mainly involves mixing asphalt, aggregates, fillers and other materials according to the designed mix ratio at the mixing station and heating them to the specified temperature.

[0026] The above-mentioned middle spreading stage is to spread the mixture evenly on the base layer.

[0027] The above-mentioned compaction stage is to use a light roller to carry out preliminary compaction to give the mixture a preliminary shape, then use a heavy roller to carry out multiple compactions, and finally use a light roller to level the surface to make the road surface smoother.

[0028] The above-mentioned middle seam processing stage mainly involves cutting the places where seams need to be set and filling them with seam materials.

[0029] In a further example, the quality indicators of each construction stage are shown in Table 1.

[0030] Table 1

[0031]

[0032] (2) See Figure 2 As shown, the sensitive environmental conditions of quality indicators are analyzed according to the quality indicators of each construction stage. The specific implementation is as follows: the designed construction volume, designed construction material list and designed construction period are extracted from the construction design documents of the asphalt concrete project.

[0033] A database containing historical construction projects is retrieved, and construction projects corresponding to the same construction objects are selected from the database based on the construction objects of the asphalt concrete projects and recorded as historical reference construction projects.

[0034] In the above specific implementation example, assuming that the construction object of the asphalt concrete project is an urban road, all urban road construction projects are screened out from the database and recorded as historical reference construction projects.

[0035] The actual construction volume, actual construction material list and actual construction period are extracted from the construction acceptance documents of historical reference construction projects, and compared and analyzed with the designed construction volume, designed construction material list and designed construction period of the asphalt concrete project, so as to screen out historical valid construction projects that meet the current project design requirements. The specific screening process is: the actual construction volume of the historical reference construction project and the designed construction volume of the asphalt concrete project are converted into three-dimensional contours, and the overlapping contour volume of the two is calculated, and then the overlapping contour volume is divided by the three-dimensional contour volume corresponding to the designed construction volume to obtain the volume similarity between the historical reference construction project and the asphalt concrete project.

[0036] It should be added that the three-dimensional contour conversion of the construction volume can extract the three-dimensional contour corresponding to the designed construction volume from the three-dimensional design drawings of the asphalt concrete project, and compare it with the actual building volume contour of the available construction project. For historical reference construction projects, the three-dimensional contour corresponding to the actual construction volume can be extracted from the construction acceptance documents.

[0037] It is important to understand that the three-dimensional outline corresponding to the construction volume presents the overall shape and volume of the construction project in three-dimensional space.

[0038] The specifications and usage of each construction material used in the construction material lists of the historical reference construction project and the asphalt concrete project are listed, and then the specifications and usage of each construction material are compared one-to-one to calculate the material similarity between the historical reference construction project and the asphalt concrete project. The specific calculation is to match the specifications of each construction material. When the match is successful, the specification matching degree of this construction material is 1, and when the match fails, the specification matching degree of this construction material is 0. At the same time, the usage of each construction material is subtracted and the absolute value is divided by the usage of the corresponding construction material in the design construction material list to obtain the usage difference of each construction material. Then, the specification matching degree of various construction materials is combined with the usage difference using the material similarity formula Calculate the material similarity between the historical reference construction project and the asphalt concrete project, where Indicates The specification matching degree of various construction materials, among which The value of is 1 or 0. Indicates the construction material number. , Indicates the number of types of construction materials. Indicates The difference in the usage of various construction materials.

[0039] It should be pointed out that the types of construction materials in the above-mentioned material similarity formula are numbered according to the types of construction materials displayed in the design construction material list of the asphalt concrete project, and are mapped and compared with the types of construction materials displayed in the actual construction material list of the historical reference construction project based on the displayed types of construction materials.

[0040] It is important to know that the types of construction materials for asphalt concrete projects include asphalt, aggregate, mineral powder, mixing plants, pavers, rollers, etc. The specifications of the types of construction materials show the technical parameters and size requirements of the material types, which can be specifically reflected by the brand and model of the construction materials. When calculating the similarity of materials, the material usage and material specifications are used as calculation parameters, which can enable more refined comparisons, rather than relying solely on rough matching of material types, making the similarity calculation more objective and accurate.

[0041] Convert the actual construction period of the historical reference construction project and the designed construction period of the asphalt concrete project into the same units, usually days.

[0042] The absolute difference between the two transformed construction periods is calculated. Specifically, the absolute difference is calculated as

[0043] ,in represents the actual construction period of the historical reference construction project, It represents the design and construction period of the asphalt concrete project, and performs relative difference calculation based on the absolute difference calculation result. Specifically, the relative difference calculation is: ,It needs to be understood that the relative difference reflects the degree to which the actual ,construction period deviates from the designed construction period, and then the ,similarity between the construction period of the reference ,construction project and the asphalt concrete project is obtained by subtracting the value 1 from the relative ,difference.

[0044] Applied to the above embodiment, assuming that the actual construction period of the historical reference construction project and the designed construction period of the asphalt concrete project are 120 days and 100 days respectively, the relative difference calculated at this time is , and further calculation shows that the construction period similarity is ,It can be seen that the smaller the relative difference is, the greater the similarity of the construction ,cycles.

[0045] The weighted average of the volume similarity, material similarity and construction period similarity between the historical reference construction project and the asphalt concrete project is calculated to obtain the comprehensive similarity between the reference construction project and the asphalt concrete project, and then compared with the configured similarity threshold to select the historical reference construction projects with a similarity greater than the similarity threshold as historical valid construction projects.

[0046] It should be added that the weight values ​​of volume similarity, material similarity and construction period similarity in the above weighted average calculation can be set according to the focus of the project. By way of example, the weight values ​​of volume similarity, material similarity and construction period similarity are 0.5, 0.3 and 0.2 respectively. The rationality of this example is that volume is one of the key factors determining the scale of a project, and volume similarity has a greater impact on the comprehensive similarity, so a higher weight is given. Material similarity reflects the similarity of the materials required for the project and has a direct impact on the cost and construction process. The construction period reflects the duration of the project. Although it is important, its impact is relatively small compared to volume and materials.

[0047] The present invention compares the actual construction volume, actual construction materials and actual construction period of historical reference construction projects with the corresponding design information of the current project to screen out historical effective construction projects with similar actual construction volume, use of the same construction materials, and actual construction period close to the designed construction period. The present invention can find the past project most similar to the current project from the historical data, thereby providing a reliable reference for the subsequent analysis of sensitive environmental conditions corresponding to quality indicators in each construction stage.

[0048] What needs to be understood more is that when making similar comparisons between historical reference construction projects and current asphalt concrete projects, the choice to compare the design information of construction volume, construction materials, and construction period with the construction acceptance information of historical reference construction projects rather than with the design information is because the construction acceptance information reflects the actual completion of the project. These data are the results verified by construction practice and can better reflect the real situation of the project. The design information is usually planning data under ideal conditions. Various unforeseen problems may be encountered in the actual construction process, resulting in certain differences between the actual construction and the design. By making similar comparisons with the construction acceptance information, historical effective construction projects can be screened out more accurately.

[0049] The quality indicators and environmental condition data uploaded after the completion of each construction phase are extracted from the construction logs of historical effective construction projects, where the environmental condition data include temperature, humidity, wind speed, etc.

[0050] In the same construction phase, each quality indicator and each environmental condition in each historical effective construction project are formed into an associated group, and then the data of the associated group formed by each quality indicator in each construction phase in the construction log of the historical effective construction project are formed into an associated set.

[0051] In the above implementation example, assuming that the quality indicators uploaded during the compaction stage are compaction degree and compaction flatness, and the uploaded environmental condition data are temperature and humidity, the association groups formed in this example are (compaction degree and temperature), (compaction degree and humidity), (compaction flatness and temperature), and (compaction flatness and humidity).

[0052] A two-dimensional coordinate system is constructed with environmental conditions as the horizontal axis and quality indicators as the vertical axis. Thus, for each quality indicator association group in each construction stage, the association set composed of data in the construction log of historical valid construction projects forms an association curve between quality indicators and environmental conditions in the constructed two-dimensional coordinate system.

[0053] As an example of the above implementation, assuming that there are 8 historical effective construction projects screened out, the data of the association group taking compaction degree and temperature as an example in the construction log of the historical effective construction project is , , ,

[0054] , ,

[0055] , ,

[0056] , these data constitute an associated set, where Indicates the degree of compaction, Indicates temperature.

[0057] It should be pointed out that in order to ensure the reliability of the plotting of the correlation curve between quality indicators and environmental conditions, as many historical effective construction projects as possible should be screened to obtain sufficient correlation data.

[0058] The total curvature of the curve is obtained from the correlation curve between the quality index and the environmental conditions, and the environmental conditions corresponding to the maximum total curvature are extracted as the sensitive environmental conditions corresponding to the quality index in each construction stage.

[0059] It needs to be explained that the total curvature is the integral of the curvatures of each point on the curve, which reflects the overall curvature of the curve. The larger the total curvature, the greater the sensitivity of the quality index to changes.

[0060] In the example of the compaction stage where the association groups are (compactness and temperature) and (compactness and humidity), if the total curvature of the curve of the relationship between compaction and temperature is large, it means that the trend of compaction changing with temperature is more obvious, and compaction is more sensitive to temperature changes. The total curvature of the curve of the relationship between compaction and humidity is small, which means that the trend of compaction changing with humidity is relatively gentle, and compaction is not very sensitive to humidity changes.

[0061] The present invention analyzes the sensitive environmental conditions corresponding to the quality indicators of each construction stage by utilizing the quality indicators and environmental conditions uploaded after the completion of each construction stage in historical effective construction projects. This is to provide targeted environmental monitoring targets when subsequently conducting dynamic quality monitoring of the current asphalt concrete project at each construction stage, avoid waste of resources caused by monitoring all environmental conditions, and help improve monitoring efficiency.

[0062] Furthermore, the rationality of the above-mentioned use of the quality indicators and environmental conditions uploaded after the completion of each construction stage in the historical effective construction projects to analyze the sensitive environmental conditions corresponding to the quality indicators of each construction stage is as follows: first, the quality indicators and environmental conditions data uploaded after the completion of each construction stage are extracted from the construction logs of the historical effective construction projects to ensure the authenticity and reliability of the data; second, forming an associated group for each quality indicator and environmental condition in each historical effective construction project within the same construction period can eliminate the impact caused by time differences and make the comparison more comparable; third, the associated group formed by each quality indicator in each construction stage is formed into an associated set with the data in the construction logs of the historical effective construction projects, which can integrate the same data of multiple historical projects, thereby increasing the sample size and improving the credibility of the analysis; fourth, forming an associated curve between the quality indicator and the environmental conditions in the two-dimensional coordinate system can clearly show the changing trend between the two, and calculating the total curvature can reflect the overall changing trend between the quality indicator and the environmental conditions, which is helpful to evaluate the sensitivity of the quality indicator and the environmental conditions.

[0063] (3) After completing the current construction phase, conduct construction quality inspection based on the quality indicators of that phase, and simultaneously record the sensitive environmental conditions of the corresponding quality indicators during the inspection, and also record the actual construction duration of that phase.

[0064] (4) Evaluate whether the construction quality meets the standards based on the construction quality monitoring results of the current construction stage. If the construction quality does not meet the standards, make construction adjustments. If the construction quality meets the standards, use the comparison results of the actual construction time of the current construction stage with the designed construction period to judge whether there is a surplus in the construction progress.

[0065] Specifically, in the above scheme, to evaluate whether the construction quality meets the standards, the construction quality monitoring results of the current construction stage can be compared with the standard construction quality of the corresponding construction stage in the construction design documents. If the construction quality monitoring results of the current construction stage meet the standard construction quality, the construction quality is evaluated to meet the standards; otherwise, the construction quality is evaluated to fail to meet the standards.

[0066] Another specific aspect of the above scheme is that the construction adjustments made when the construction quality is evaluated to be not up to standard can be construction rectification to correct the deviations between the actual construction results and the design requirements during the construction process, such as operating process deviations, material usage deviations, etc.

[0067] In further implementation, the comparison result of the actual construction time of the current construction stage with the designed construction period is used to judge whether there is a surplus in the construction progress as follows: the actual construction time of the current construction stage is compared with the designed construction period to obtain the remaining construction time, and the remaining construction time is divided by the designed construction period to obtain the construction progress surplus index of the current construction stage.

[0068] In the above implementation example, assuming that the actual construction duration of the current construction phase is 90 days and the planned construction period is 120 days, the remaining construction duration is 30 days, and the construction progress surplus index is .

[0069] If the construction progress surplus index of the current construction stage is greater than zero, it is judged that there is a surplus in the construction progress of the current construction stage; otherwise, it is judged that there is no surplus in the construction progress of the current construction stage.

[0070] (5) If it is judged that the construction progress of the current construction phase has a surplus, execute (6)-(8); otherwise, execute (8).

[0071] (6) During the remaining construction period of the current construction phase, it is predicted whether the sensitive environmental conditions corresponding to the quality indicators change. If the sensitive environmental conditions are predicted to change, execute (7); otherwise, execute (8).

[0072] The remaining construction period of the current construction phase mentioned above is the time period between the actual end date of construction of the current construction phase and the designed end date of construction in the designed construction cycle.

[0073] In the above implementation example, assuming that the actual end date of the current construction phase is October 15, and the design end date of the construction period is October 20, the remaining construction period is .

[0074] In the manner that the above scheme can be implemented, the prediction of whether the sensitive environmental conditions corresponding to the quality indicators have changed during the remaining construction period of the current construction phase is implemented as follows: during the remaining construction period of the current construction phase, the sensitive environmental conditions corresponding to the quality indicators are obtained through the meteorological center at the location of the asphalt concrete project, and compared with the corresponding sensitive environmental conditions at the time of the completion quality inspection to calculate the degree of change, wherein the degree of change can be obtained by taking the absolute value of the difference between the sensitive environmental conditions corresponding to the quality indicators obtained from the meteorological center and the corresponding sensitive environmental conditions at the time of the completion quality inspection and dividing it by the corresponding sensitive environmental conditions at the time of the completion quality inspection.

[0075] It should be understood that the sensitive environmental conditions corresponding to the quality indicators obtained from the meteorological center are forecast sensitive environmental conditions. Since the meteorological forecast can provide meteorological information in the future time period, the actual end date of the construction in the current construction phase can be extracted from the meteorological forecast provided by the meteorological center.

[0076] In a further achievable method, prediction of changes in sensitive environmental conditions is implemented as follows: the calculated degree of variation of the quality indicator corresponding to the sensitive environmental condition is compared with a preset effective degree of variation. Exemplarily, the effective degree of variation is 0.4. The purpose of setting the effective degree of variation is to assist in the judgment of changes in sensitive environmental conditions. If the degree of variation of the sensitive environmental condition corresponding to a certain quality indicator reaches the effective degree of variation at a certain time, then it is predicted that the sensitive environmental condition corresponding to the quality indicator has changed.

[0077] (7) Pause the entry into the next construction phase, and collect sensitive environmental conditions and identify changes in real time during the remaining construction period of the current construction phase, and then re-monitor the construction quality of the current construction phase when changes in sensitive environmental conditions are identified.

[0078] It should be emphasized that since the analysis of changes in sensitive environmental conditions provided by the Meteorological Center is a prediction, when re-monitoring the construction quality due to actual changes in sensitive environmental conditions, it is necessary to operate based on the actual changes. Therefore, when it is predicted that the sensitive environmental conditions will change, it is necessary to actually collect and identify changes in the sensitive environmental conditions within the remaining construction period of the current construction phase to ensure the accuracy of the prediction. Of course, if the actually identified sensitive environmental conditions have not changed within the remaining construction period of the current construction phase, the construction quality will not be re-monitored.

[0079] In a further achievable method, when changes in sensitive environmental conditions are identified, the construction quality monitoring of the current construction phase is re-implemented as follows: when changes in sensitive environmental conditions are identified, the changed sensitive environmental conditions and the time of the changes are recorded, and the sensitive environmental conditions corresponding to each quality indicator in the current construction phase are matched with the changed sensitive environmental conditions, and the quality indicators that have been successfully matched are screened out as the quality indicators to be inspected.

[0080] Re-monitor the quality indicators that need to be inspected at the change time.

[0081] The present invention analyzes whether there is a surplus in the construction progress of the current construction stage and predicts changes in sensitive environmental conditions. When it is analyzed that there is no surplus in the construction progress of the current construction stage or the prediction of sensitive environmental conditions has not changed, the next construction stage is directly entered, and each construction stage can be promoted in an orderly manner to ensure construction continuity and consistency.

[0082] (8) Directly enter the next construction stage, and in the process of entering the next construction stage, collect and identify in real time the changes in the quality indicators corresponding to the sensitive environmental conditions in the previous construction stage, and simultaneously obtain the quality indicators retained in the previous construction stage, and then re-monitor the quality indicators retained in the previous construction stage when changes in sensitive environmental conditions are identified.

[0083] Preferably, when a change in sensitive environmental conditions is identified, the following process is performed to monitor the quality indicators retained in the previous construction phase again: when a change in sensitive environmental conditions is identified, the changed sensitive environmental conditions and the time of the change are recorded.

[0084] Match the sensitive environmental conditions corresponding to the quality indicators retained in the previous construction phase with the sensitive environmental conditions that have changed, and select the successfully matched quality indicators as the quality indicators that need to be inspected.

[0085] It is important to know that when entering the next construction phase, since construction has been carried out on the basis of the original construction, the quality indicators that existed in the previous construction phase will not always exist, so the quality indicators retained in the previous construction phase are processed.

[0086] Re-monitor the quality indicators that need to be inspected at the change time.

[0087] (9) Evaluate the quality of the current construction phase based on the quality indicators after changes in sensitive environmental conditions. If the evaluation does not meet the standards, suspend the current construction and make adjustments.

[0088] Specifically, the construction quality evaluation of the quality indicators of the current construction stage after the sensitive environmental conditions change refers to the following process: count the number of quality indicators that need to be inspected, and compare the monitoring data of the quality indicators that need to be inspected at the time of change with the monitoring data during the completion quality monitoring to calculate the attenuation index of the quality indicators that need to be inspected, where the attenuation index is calculated by subtracting the monitoring data of the quality indicators that need to be inspected during the completion quality inspection from the monitoring data at the time of change and dividing the result by the monitoring data during the completion quality monitoring.

[0089] The attenuation index of each quality indicator to be inspected is compared with the allowable attenuation index, wherein the allowable attenuation index can be extracted from the construction design document. If the attenuation index of any quality indicator to be inspected is greater than the allowable attenuation index, the construction quality is evaluated as not meeting the standard.

[0090] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A method for dynamic monitoring and evaluation of asphalt concrete construction quality, characterized in that: The following steps are involved: (1) Divide the asphalt concrete project into construction stages and obtain the quality indicators and design construction period of each construction stage based on the construction design documents; (2) Analyze the sensitive environmental conditions of quality indicators based on the quality indicators of each construction stage; (3) Conduct construction quality monitoring after completing the current construction phase, and simultaneously record sensitive environmental conditions of quality indicators and actual construction time; (4) Evaluate whether the construction quality meets the standards based on the construction quality monitoring results of the current construction phase. If not, make construction adjustments. If so, compare the actual construction time of the current construction phase with the designed construction period to determine whether there is a surplus in the construction progress. (5) When it is judged that there is a surplus in the construction progress, it is predicted whether the corresponding sensitive environmental conditions of the quality indicators will change during the remaining construction period of the current construction stage. If it is predicted that there will be a change, the next construction stage will be suspended, and the changes in sensitive environmental conditions will be identified during the remaining construction period. When changes are identified, the construction quality will be re-monitored. When it is judged that there is no surplus or the prediction has not changed, the next construction stage will be directly entered, and the retained quality indicators of the previous construction stage will be obtained and the changes in sensitive environmental conditions will be identified simultaneously during the construction process. Then, when changes are identified, the retained quality indicators of the previous construction stage will be re-monitored; (6) Conduct construction quality evaluation on the quality indicators of the current construction phase after changes in sensitive environmental conditions. If the evaluation fails to meet the standards, suspend the current construction and make construction adjustments; The sensitive environmental conditions of the analytical quality indicators are shown in the following process: Extract the design construction volume, design construction material list and design construction period from the construction design documents of the asphalt concrete project; Retrieving a database containing historical construction projects, and selecting construction projects corresponding to the same construction objects as the asphalt concrete project according to the construction objects, and recording them as historical reference construction projects; Extract the actual construction volume, actual construction material list and actual construction period from the construction acceptance documents of historical reference construction projects, and compare and analyze them with the designed construction volume, designed construction material list and designed construction period of asphalt concrete projects, so as to select historical effective construction projects that meet the design requirements of the current project; Extract the quality indicators and environmental condition data uploaded after each construction phase is completed from the construction logs of historical effective construction projects; In the same construction stage, each quality indicator and each environmental condition in each historical effective construction project are formed into an associated group, and then the data of the associated group formed by each quality indicator in each construction stage in the construction log of the historical effective construction project are formed into an associated set; A two-dimensional coordinate system is constructed with environmental conditions as the horizontal axis and quality indicators as the vertical axis, thereby forming a correlation curve between quality indicators and environmental conditions in the constructed two-dimensional coordinate system for the correlation set composed of data in the construction log of historical effective construction projects for each quality indicator correlation group in each construction stage; The total curvature of the curve is obtained from the correlation curve between the quality index and the environmental conditions, and the environmental conditions corresponding to the maximum total curvature are extracted as the sensitive environmental conditions corresponding to the quality index in each construction stage.

2. A method for dynamic monitoring and evaluation of asphalt concrete construction quality as claimed in claim 1, characterized in that: The implementation of the historical effective construction projects that meet the current project design requirements is as follows: The actual construction volume of the historical reference construction project and the designed construction volume of the asphalt concrete project are converted into three-dimensional contours, and the overlapping contour volume of the two is calculated. Then, the overlapping contour volume is divided by the three-dimensional contour volume corresponding to the designed construction volume to obtain the volume similarity between the historical reference construction project and the asphalt concrete project. The specifications and usage of each construction material used in the historical reference construction project and the asphalt concrete project are listed from the construction material lists, and then the specifications and usage of each construction material are compared one-to-one to calculate the material similarity between the historical reference construction project and the asphalt concrete project; Convert the actual construction period of the historical reference construction project and the designed construction period of the asphalt concrete project into the same units; The absolute difference between the two transformed construction periods is calculated, and the relative difference is calculated based on the absolute difference calculation result, and then the value 1 is subtracted from the relative difference to obtain the similarity of the construction period between the reference construction project and the asphalt concrete project; The weighted average of the volume similarity, material similarity and construction period similarity between the historical reference construction project and the asphalt concrete project is calculated to obtain the comprehensive similarity between the reference construction project and the asphalt concrete project, and then compared with the configured similarity threshold to select the historical reference construction projects with a similarity greater than the similarity threshold as historical valid construction projects.

3. A method for dynamic monitoring and evaluation of asphalt concrete construction quality as claimed in claim 1, characterized in that: The process of judging whether there is a surplus in the construction progress is as follows: Compare the actual construction time of the current construction phase with the designed construction period to obtain the remaining construction time, and divide the remaining construction time by the designed construction period to obtain the construction progress surplus index of the current construction phase; If the construction progress surplus index of the current construction stage is greater than zero, it is judged that there is a surplus in the construction progress of the current construction stage; otherwise, it is judged that there is no surplus in the construction progress of the current construction stage.

4. A method for dynamic monitoring and evaluation of asphalt concrete construction quality as claimed in claim 1, characterized in that: The remaining construction period of the current construction phase is the time period between the actual end date of construction of the current construction phase and the designed end date of construction in the designed construction cycle.

5. A method for dynamic monitoring and evaluation of asphalt concrete construction quality as claimed in claim 4, characterized in that: The prediction of whether the sensitive environmental conditions corresponding to the quality indicators change during the remaining construction period of the current construction stage is implemented as follows: During the remaining construction period of the current construction phase, the sensitive environmental conditions corresponding to the quality indicators are obtained through the meteorological center at the location of the asphalt concrete project, and the degree of variation is calculated by comparing with the corresponding sensitive environmental conditions during the completion quality monitoring.

6. A method for dynamic monitoring and evaluation of asphalt concrete construction quality as claimed in claim 5, characterized in that: The forecast changes are implemented as follows: The calculated degree of variation of the quality index corresponding to the sensitive environmental conditions is compared with the preset effective degree of variation. If the degree of variation of a certain quality index corresponding to the sensitive environmental conditions reaches the effective degree of variation at a certain time, it is predicted that the sensitive environmental conditions corresponding to the quality index will change.

7. A method for dynamic monitoring and evaluation of asphalt concrete construction quality as claimed in claim 1, characterized in that: The specific implementation of re-construction quality monitoring when the identification changes is as follows: When changes in sensitive environmental conditions are identified, the changed sensitive environmental conditions and the time of change are recorded, and the sensitive environmental conditions corresponding to each quality indicator in the current construction phase are matched with the changed sensitive environmental conditions, and the successfully matched quality indicators are selected as the quality indicators to be inspected; Re-monitor the quality indicators that need to be inspected at the change time.

8. A method for dynamic monitoring and evaluation of asphalt concrete construction quality as claimed in claim 1, characterized in that: When a change is identified, the specific process of re-monitoring the quality indicators retained in the previous construction stage is as follows: When changes in sensitive environmental conditions are identified, record the changed sensitive environmental conditions and the time of change; Match the sensitive environmental conditions corresponding to the quality indicators retained in the previous construction phase with the sensitive environmental conditions that have changed, and select the successfully matched quality indicators as the quality indicators to be inspected; Re-monitor the quality indicators that need to be inspected at the change time.

9. A method for dynamic monitoring and evaluation of asphalt concrete construction quality as claimed in claim 8, characterized in that: The construction quality evaluation refers to the following process: Count the number of quality indicators that need to be inspected, and compare the monitoring data of the quality indicators that need to be inspected at the time of change with the monitoring data during the completion quality monitoring to calculate the degradation index of the quality indicators that need to be inspected; The degradation index of each quality indicator to be inspected is compared with the allowable degradation index. If the degradation index of any quality indicator to be inspected is greater than the allowable degradation index, the construction quality is evaluated as not meeting the standard.

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