Rapid cold repair method for asphalt pavement

Abstract

The invention belongs to the technical field of road repair, and relates to an asphalt pavement rapid cold repair method, which comprises the following steps: obtaining performance data of to-be-repaired pits contained in a to-be-repaired pavement, processing and analyzing to obtain abnormal performance values of the to-be-repaired pits, sorting the to-be-repaired pits according to the abnormal performance values, and generating a first repair table, obtaining deviation data of the to-be-repaired potholes, processing and analyzing the deviation data to obtain a deviation length ratio, sorting the to-be-repaired potholes according to the deviation length ratio to obtain a second repair table, comparing and analyzing the first repair table and the second repair table to obtain a mismatching degree value, comparing the mismatching degree value with a mismatching degree threshold value, and judging the mismatching degree value of the to-be-repaired potholes. If the mismatching degree value is larger than the mismatching degree threshold value, generating a mismatching signal, determining a priority ranking value, generating a target repairing table according to the priority ranking value, repairing the pit slot to be repaired according to the target repairing table, and optimizing the pit slot to be repaired in the aspect of specific construction steps.

Description

Technical Field

[0001] The invention belongs to the technical field of road repair, in particular to a method for rapid cold patching of an asphalt pavement. Background Art

[0002] With the vigorous development of road infrastructure, asphalt pavement has become a widely used type of pavement in today's road construction. Asphalt materials have high wear resistance and anti-aging properties, which enables asphalt pavement to maintain high quality and stability during long-term use. Traditional hot-mix and hot-paving asphalt technology needs to be heated to a high temperature under warm and dry conditions during construction, which consumes a lot of energy, has a relatively long construction time, increases construction costs, and releases exhaust gas and volatile organic compounds, which have an adverse effect on air quality and the environment.

[0003] A Chinese patent application with publication number CN103570334A discloses a method for rapid cold patching of asphalt pavement and its application, comprising: first, before repairing the damaged asphalt pavement, the damaged part is grooved and formed with a cutting machine, first the depth and boundary of the damaged part of the pavement are determined, a repair contour line perpendicular or parallel to the driving direction is drawn and the damaged part is excavated along the drawn repair contour line, and then the required repair part is cleaned by blowing with compressed air; second, during construction, the above-mentioned raw materials in parts by weight are put into a mixing machine, an appropriate amount of water is added according to the required water-cement ratio, the mixing machine is started, and the stirring is carried out for 2 minutes, the fully stirred repair material is quickly taken out of the mixing machine, and immediately applied to the road surface to be repaired area, this process is completed within 8 minutes after water is added to the repair material and stirring begins, and the whole process from the repair material being put into the machine, adding water, starting stirring to all being applied to the area to be repaired, and then plastering, shaping, and completing the repair is within 12 minutes.

[0004] In the existing technology, hot asphalt requires more labor costs and a longer construction process to cool and solidify, which may affect the construction progress, especially in cases of emergency repairs or the need for rapid traffic. The solidification process of cold-mix asphalt is much slower than that of hot-mix asphalt, and it is impossible to use shorter time and higher efficiency to reasonably allocate construction sequences and construction resources, thereby quickly restoring traffic capacity or bearing heavy loads.

[0005] To this end, the present invention provides a method for rapid cold patching and repairing of an asphalt pavement. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a method for rapid cold patching of asphalt pavement, comprising:

[0008] Acquiring performance data of a pothole to be repaired contained in the road surface to be repaired, wherein the performance data includes an area of ​​the pothole to be repaired and a depth of the pothole to be repaired;

[0009] Based on the performance data of the potholes to be repaired, the abnormal performance values ​​of the potholes to be repaired are obtained by processing and analyzing, and the potholes to be repaired are sorted according to the abnormal performance values ​​to generate a first repair table;

[0010] Obtaining deviation data of the pit to be repaired, wherein the deviation data includes a center deviation length of the pit to be repaired;

[0011] Based on the processing and analysis of the deviation data, the deviation length ratio is obtained, and the pits to be repaired are sorted according to the deviation length ratio to obtain a second repair table;

[0012] Compare and analyze the first repair table and the second repair table to obtain a mismatch quantity ratio and a mismatch degree value;

[0013] The mismatch degree value is compared with a mismatch degree threshold, and if the mismatch degree value is greater than the mismatch degree threshold, a mismatch signal is generated;

[0014] Based on the mismatch signal, a priority ranking value is determined, a target repair table is generated according to the priority ranking value, and the pit to be repaired is repaired according to the target repair table;

[0015] Based on the first repair table, the second repair table and the target repair table obtained by analysis, the specific construction aspects of the pits to be repaired are optimized;

[0016] As a further technical solution of the present invention, the specific process of obtaining the abnormal performance value is as follows:

[0017] A plurality of collection points are respectively set inside the pit to be repaired, the depth of the pit to be repaired is collected at each collection point, and the sum is averaged to obtain the depth of the pit to be repaired;

[0018] Based on any pothole to be repaired;

[0019] Obtaining the area of ​​the pothole to be repaired, and performing ratio processing on the area of ​​the pothole to be repaired and the total area of ​​the road surface to be repaired to obtain the area ratio of the pothole to be repaired;

[0020] Obtaining the depth of the pit to be repaired, and performing ratio processing with the depth threshold of the pit to be repaired to obtain the depth ratio of the pit to be repaired;

[0021] The area ratio and the depth ratio of the pit to be repaired are summed to obtain an abnormal performance value of the pit to be repaired, which is marked as YC;

[0022] As a further technical solution of the present invention, the specific process of obtaining the first repair table is as follows:

[0023] The potholes to be repaired are sorted in descending order according to the abnormal performance values ​​to obtain a first repair table, and the potholes to be repaired are numbered according to the ranking order of the first repair table, and the numbering is: 1.2.3...n, where n represents the total number of potholes to be repaired;

[0024] As a further technical solution of the present invention, the specific process of obtaining the second repair table is as follows:

[0025] Obtain the center point of the pothole to be repaired, measure the vertical distance from the center point of the pothole to the center line of the road to be repaired, and obtain the center deviation length of the pothole to be repaired;

[0026] Based on any pothole to be repaired;

[0027] Get the center deviation length of the pit to be repaired, and compare it with the total center deviation length to get the deviation length ratio, which is marked as PL

[0028] The total length of center deviation is the sum of the lengths of center deviations of all the potholes to be repaired;

[0029] Based on the obtained deviation length ratio, the pits to be repaired are sorted in ascending order of the deviation length ratio to obtain a second repair table;

[0030] As a further technical solution of the present invention, the specific process of obtaining the mismatch quantity ratio is as follows:

[0031] Comparing the first repair table with the second repair table specifically includes:

[0032] Integrate the numbers of the pits to be repaired in the same sorting position in the first repair table and the second repair table into a number group;

[0033] Based on any number group;

[0034] If the numbers in the number group are not the same, the number group is marked as an unmatched number group;

[0035] If the numbers in the number group are the same, the number group is marked as a matching number group;

[0036] Count the number of unmatched number groups and compare it with the total number of number groups to get the unmatched number ratio, which is marked as BP;

[0037] As a further technical solution of the present invention, the specific process of obtaining the mismatch degree value is as follows:

[0038] Perform difference processing on the numbers in the mismatched number group, and take the absolute value of the difference to obtain the number difference of the mismatched group, sum and average the number differences of all the mismatched number groups to obtain the number difference mean, perform ratio processing on the number difference mean and the number difference maximum value to obtain the mismatch degree value, and mark it as CD;

[0039] Among them, the maximum value of the number difference is n-1;

[0040] As a further technical solution of the present invention, the specific process of obtaining the mismatch value is as follows:

[0041] The mismatch quantity ratio BP and the mismatch degree value CD are processed to obtain the mismatch value through calculation and marked as PP;

[0042] As a further technical solution of the present invention, the specific comparison process between the mismatch value and the mismatch threshold is:

[0043] comparing the mismatch value to a mismatch threshold;

[0044] If the mismatch is greater than the mismatch threshold, a mismatch signal is generated;

[0045] If the mismatch value is less than or equal to the mismatch threshold, a match signal is generated;

[0046] Based on the matching signal, selecting the first repair table or the second repair table to repair the pit to be repaired;

[0047] As a further technical solution of the present invention, the specific acquisition process of the target repair table is as follows:

[0048] Obtain the abnormal performance value and deviation length ratio of the pothole to be repaired, perform data processing, obtain the priority ranking value through calculation, and mark it as YX;

[0049] The pits to be repaired are sorted from large to small according to the priority sorting values ​​to obtain a target repair table, and the pits to be repaired are repaired according to the target repair table;

[0050] As a further technical solution of the present invention, the specific optimization process of the construction sequence is as follows:

[0051] The pits to be constructed at the front of the construction sequence have a large amount of work and take a long time. When repairing the pits, cold-mixed asphalt and prefabricated asphalt bricks are used to mix and fill them.

[0052] The specific ingredients of cold mix asphalt are: 85% aggregates, including but not limited to coarse mineral aggregates, fine mineral aggregates and mineral powder, which serve as the basic skeleton structure of cold mix asphalt and enhance the strength and stability of cold mix asphalt; 15% emulsified asphalt, including but not limited to asphalt, emulsifiers, stabilizers, accelerators and water, which provide adhesion and plasticity for cold mix asphalt; 5% additives, including but not limited to modifiers, anti-aging agents and adhesives, which improve the performance of cold mix asphalt and enhance the stability and durability of cold mix asphalt;

[0053] Use fast-breaking emulsified asphalt to make cold-mix asphalt, add appropriate additives to promote the solidification of cold-mix asphalt, and use external heat source heating for auxiliary. Provide shelters to shield rain and snow on rainy and snowy days, keep the potholes to be repaired clean and dry, and use vibrating plate compactors to promote solidification;

[0054] As a further technical solution of the present invention, the specific optimization process of the construction sequence is as follows:

[0055] The pits to be constructed in the middle of the construction sequence have moderate construction volume and time consumption. When repairing the pits, cold-mixed asphalt and prefabricated asphalt bricks are used to mix and fill them.

[0056] The specific ingredients of cold mix asphalt are: 82% aggregates, including but not limited to coarse mineral aggregates, fine mineral aggregates and mineral powder, which serve as the basic skeleton structure of cold mix asphalt and enhance the strength and stability of cold mix asphalt; 14% emulsified asphalt, including but not limited to asphalt, emulsifiers, stabilizers, accelerators and water, which provide adhesion and plasticity for cold mix asphalt; 4% additives, including but not limited to modifiers, anti-aging agents and binders, which improve the performance of cold mix asphalt and enhance the stability and durability of cold mix asphalt;

[0057] Use fast-breaking emulsified asphalt to make cold-mix asphalt, add appropriate additives to promote the solidification of cold-mix asphalt, and use external heat source heating for auxiliary. Provide shelters to shield rain and snow on rainy and snowy days, keep the potholes to be repaired clean and dry, and use vibrating plate compactors to promote solidification;

[0058] The pits to be constructed later in the construction sequence have a smaller construction volume and a shorter construction time. When repairing the pits, cold-mix asphalt is used to directly fill them.

[0059] The specific ingredients of cold mix asphalt are: 85% aggregates, including but not limited to coarse mineral aggregates, fine mineral aggregates and mineral powder, which serve as the basic skeleton structure of cold mix asphalt and enhance the strength and stability of cold mix asphalt; 13% emulsified asphalt, including but not limited to asphalt, emulsifiers, stabilizers, accelerators and water, which provide adhesion and plasticity for cold mix asphalt; 2% additives, including but not limited to modifiers, anti-aging agents and adhesives, which improve the performance of cold mix asphalt and enhance the stability and durability of cold mix asphalt;

[0060] Medium-breakage emulsified asphalt is used to make cold-mix asphalt, and appropriate additives are added to promote the solidification of cold-mix asphalt. At the same time, external heat sources are used for auxiliary heating. On rainy and snowy days, shelters are provided to shield against rain and snow, and the potholes to be repaired are kept clean and dry. A vibrating plate compactor is used to promote solidification.

[0061] The beneficial effects of the present invention are as follows:

[0062] 1. The technical solution of an embodiment of the present invention is: obtaining performance data of the potholes to be repaired contained in the road surface to be repaired, processing and analyzing the performance data of the potholes to be repaired, obtaining abnormal performance values ​​of the potholes to be repaired, sorting the potholes to be repaired according to the abnormal performance values, and generating a first repair table. The present invention analyzes the area and depth of the potholes to be repaired, and sorts the potholes to be repaired according to the analysis results, which is conducive to sequentially repairing the potholes to be repaired according to the sorting table, thereby improving the repair efficiency of the asphalt pavement.

[0063] 2. Obtain the mismatch signal obtained by analysis, calculate the priority value through the abnormal performance value YC and the deviation length ratio PL of the pothole to be repaired, generate a target repair table according to the priority value, and repair the pothole to be repaired according to the target repair table; introduce mismatch signals and match signals to make the decision-making process clearer and more scientific. When the mismatch degree value exceeds the threshold, a mismatch signal is generated, indicating that the repair plan needs to be re-evaluated or adjusted. By calculating the priority value, the abnormal performance value and the deviation length ratio of the pothole are comprehensively considered, making the repair sequence more reasonable and avoiding resource waste and inefficiency caused by blind repair. The generation of the target repair table is based on the priority value, ensuring that the repair work can be carried out according to the urgency and importance, improving the overall repair efficiency. Reasonable repair sequence and efficient repair work help reduce traffic accidents and road congestion caused by potholes.

[0064] 3. The use of quick-break emulsified asphalt and external heating assisted curing method can be used for construction under different climatic conditions, especially in rainy or snowy areas. The setting of the shelter can protect the construction environment from the influence of weather changes, ensure the smooth progress of construction, and at the same time increase the construction speed, quickly restore the road's traffic capacity, and reduce the traffic risks caused by road damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The present invention will be further described below in conjunction with the accompanying drawings.

[0066] Figure 1 This is a flowchart of the steps of a method for rapid cold patching of an asphalt pavement according to Embodiment 1 of the present invention;

[0067] Figure 2 This is a construction flow chart of a method for rapid cold patching of an asphalt pavement according to Example 3 of the present invention. DETAILED DESCRIPTION

[0068] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0069] Example 1

[0070] like Figure 1 As shown, a method for rapid cold repair of an asphalt pavement according to an embodiment of the present invention comprises:

[0071] Step 1: obtaining performance data of the potholes to be repaired contained in the road surface to be repaired, wherein the performance data includes the area of ​​the potholes to be repaired and the depth of the potholes to be repaired, processing and analyzing the performance data of the potholes to be repaired, obtaining abnormal performance values ​​of the potholes to be repaired, sorting the potholes to be repaired according to the abnormal performance values, and generating a first repair table;

[0072] In some embodiments, a plurality of collection points are respectively set inside the pit to be repaired, and the depth of the pit to be repaired is collected at each collection point and the sum is averaged to obtain the depth of the pit to be repaired;

[0073] Based on any pothole to be repaired;

[0074] Obtaining the area of ​​the pothole to be repaired, and performing ratio processing on the area of ​​the pothole to be repaired and the total area of ​​the road surface to be repaired to obtain the area ratio of the pothole to be repaired;

[0075] Obtaining the depth of the pit to be repaired, and performing ratio processing with the depth threshold of the pit to be repaired to obtain the depth ratio of the pit to be repaired;

[0076] The depth threshold of the pit to be repaired is an empirical value set by a person skilled in the art and is used to determine the abnormality of the depth of the pit to be repaired.

[0077] The area ratio and the depth ratio of the pit to be repaired are summed to obtain an abnormal performance value of the pit to be repaired, which is marked as YC;

[0078] The potholes to be repaired are sorted in descending order according to the abnormal performance values ​​to obtain a first repair table, and the potholes to be repaired are numbered according to the ranking order of the first repair table, and the numbering is: 1.2.3...n, where n represents the total number of potholes to be repaired;

[0079] It should be noted that the abnormal performance value is obtained by calculating the area ratio of the pit to be repaired and the depth ratio of the pit to be repaired. The larger the area ratio and the depth ratio, the larger the abnormal performance value. The calculated abnormal performance value can intuitively reflect the degree of abnormality of the pit to be repaired in terms of area and depth.

[0080] The technical solution of an embodiment of the present invention is: obtaining performance data of the potholes to be repaired contained in the road surface to be repaired, obtaining abnormal performance values ​​of the potholes to be repaired based on processing and analysis of the performance data of the potholes to be repaired, sorting the potholes to be repaired according to the abnormal performance values, and generating a first repair table. The present invention analyzes the area and depth of the potholes to be repaired, and sorts the potholes to be repaired according to the analysis results, which is conducive to sequentially repairing the potholes to be repaired according to the sorting table, thereby improving the repair efficiency of the asphalt pavement.

[0081] Example 2

[0082] like Figure 1 As shown, based on Example 1, a method for rapid cold repair of an asphalt pavement according to an embodiment of the present invention comprises:

[0083] Step 2: obtaining deviation data of the pit to be repaired, wherein the deviation data includes the center deviation length of the pit to be repaired; obtaining a deviation length ratio based on processing and analysis of the deviation data, sorting the pits to be repaired according to the deviation length ratio to obtain a second repair table, comparing and analyzing the first repair table and the second repair table to obtain a mismatch degree value, comparing the mismatch degree value with a mismatch degree threshold, and generating a mismatch signal if the mismatch degree value is greater than the mismatch degree threshold;

[0084] In some embodiments, the center point of the pothole to be repaired is obtained, and the vertical distance from the center point of the pothole to be repaired to the center line of the road to be repaired is measured to obtain the center deviation length of the pothole to be repaired;

[0085] It should be noted that the center line of the road to be repaired is parallel to the road to be repaired. For example, in an asphalt road, the center line of the road is a yellow solid line or dotted line in the center of the asphalt road;

[0086] Based on any pothole to be repaired;

[0087] Obtain the center deviation length of the pit to be repaired, and perform ratio processing with the total center deviation length to obtain the deviation length ratio, which is marked as PL;

[0088] The total length of center deviation is the sum of the lengths of center deviations of all the potholes to be repaired;

[0089] Based on the obtained deviation length ratio, the pits to be repaired are sorted in ascending order of the deviation length ratio to obtain a second repair table;

[0090] Comparing the first repair table with the second repair table specifically includes:

[0091] Integrate the numbers of the pits to be repaired in the same sorting position in the first repair table and the second repair table into a number group;

[0092] Based on any number group;

[0093] If the numbers in the number group are not the same, the number group is marked as an unmatched number group;

[0094] If the numbers in the number group are the same, the number group is marked as a matching number group;

[0095] Count the number of unmatched number groups and compare it with the total number of number groups to get the unmatched number ratio, which is marked as BP;

[0096] Perform difference processing on the numbers in the mismatched number group, and take the absolute value of the difference to obtain the number difference of the mismatched group, sum and average the number differences of all the mismatched number groups to obtain the number difference mean, perform ratio processing on the number difference mean and the number difference maximum value to obtain the mismatch degree value, and mark it as CD;

[0097] Among them, the maximum value of the number difference is n-1;

[0098] It should be noted that the difference processing of the numbers in the mismatching number group and the subsequent steps are to quantitatively evaluate the degree of mismatch between the first repair table and the second repair table. The difference can reflect the difference between the corresponding pits in the two repair tables. The absolute value is taken to ensure that the result is a positive number, which is convenient for subsequent processing. The introduction of the mismatch degree value CD helps us quantitatively evaluate the difference between the two repair tables, so as to make a more scientific decision.

[0099] The mismatch quantity ratio BP and the mismatch degree value CD are processed, and the mismatch value is obtained by the formula: PP = a1*BP + a2*CD, which is marked as PP, where a1 and a2 are preset proportional coefficients;

[0100] comparing the mismatch value to a mismatch threshold;

[0101] If the mismatch is greater than the mismatch threshold, a mismatch signal is generated;

[0102] If the mismatch value is less than or equal to the mismatch threshold, a match signal is generated;

[0103] Based on the matching signal, selecting the first repair table or the second repair table to repair the pit to be repaired;

[0104] Step 3: Based on the mismatch signal, determine the priority ranking value, generate a target repair table according to the priority ranking value, and repair the pit to be repaired according to the target repair table;

[0105] Specifically, the abnormal performance value and deviation length ratio of the pothole to be repaired are obtained, and data processing is performed, and the formula is: Get the priority value and mark it as YX, where b1 and b2 are preset proportional coefficients;

[0106] It should be noted that the priority ranking value is calculated by the abnormal performance value YC and the deviation length ratio PL of the pothole to be repaired. The larger the abnormal performance value, the larger the priority ranking value. The abnormal performance value reflects the abnormal degree of the pothole to be repaired in terms of area and depth. The greater the abnormal degree, the more priority repair is needed. The smaller the deviation length ratio, the larger the priority ranking value. The deviation length ratio reflects the position of the pothole to be repaired on the road surface. The closer the position is to the center of the road, the more priority repair is needed. The priority ranking value calculated can more reasonably analyze the emergency situation of the pothole to be repaired, which is conducive to making reasonable arrangements and improving the repair efficiency.

[0107] The pits to be repaired are sorted from large to small according to the priority sorting values ​​to obtain a target repair table, and the pits to be repaired are repaired according to the target repair table;

[0108] The technical solution of the embodiment of the present invention is: obtaining the mismatch signal obtained by analysis, calculating the priority value through the abnormal performance value YC and the deviation length ratio PL of the pothole to be repaired, generating a target repair table according to the priority value, and repairing the pothole to be repaired according to the target repair table; introducing mismatch signals and match signals to make the decision-making process clearer and more scientific, when the mismatch degree value exceeds the threshold, generating a mismatch signal, prompting the need to re-evaluate or adjust the repair plan, by calculating the priority value, comprehensively considering the abnormal performance value and the deviation length ratio of the pothole, making the repair sequence more reasonable, avoiding the waste of resources and inefficiency caused by blind repair, the generation of the target repair table is based on the priority value, ensuring that the repair work can be carried out according to the urgency and importance, and improving the overall repair efficiency, and the reasonable repair sequence and efficient repair work help to reduce traffic accidents and road congestion caused by potholes.

[0109] Example 3

[0110] like Figure 2 As shown, based on Examples 1 and 2, a method for rapid cold repair of an asphalt pavement according to an embodiment of the present invention comprises:

[0111] Based on the first repair table, the second repair table and the target repair table obtained by analysis, the specific construction aspects of the pits to be repaired are optimized;

[0112] In some embodiments, the pits to be constructed at the front of the construction sequence have a large amount of work and take a long time, and the pits are repaired by mixing cold-mix asphalt and prefabricated asphalt bricks;

[0113] It should be noted that the first construction order refers to the pits to be constructed that are ranked in the top 30% in the first repair table, the second repair table, or the target repair table;

[0114] It should also be noted that when the scale of the pothole to be repaired is large, directly filling a large amount of cold-mixed asphalt cannot achieve rapid solidification and cannot quickly restore the road to smoothness. Therefore, the asphalt mixture can be prefabricated into solidified asphalt bricks for auxiliary filling to speed up the curing time;

[0115] Specifically, the specific ingredients of cold mix asphalt are: 80% aggregates, including but not limited to coarse mineral aggregates, fine mineral aggregates and mineral powder, which serve as the basic skeleton structure of cold mix asphalt and enhance the strength and stability of cold mix asphalt; 15% emulsified asphalt, including but not limited to asphalt, emulsifier, stabilizer, accelerator and water, which provide adhesion and plasticity for cold mix asphalt; 5% additives, including but not limited to modifiers, anti-aging agents and adhesives, which improve the performance of cold mix asphalt and enhance the stability and durability of cold mix asphalt;

[0116] Use fast-breaking emulsified asphalt to make cold-mix asphalt, add appropriate additives to promote the solidification of cold-mix asphalt, and use external heat source heating for auxiliary. Provide shelters to shield rain and snow on rainy and snowy days, keep the potholes to be repaired clean and dry, and use vibrating plate compactors to promote solidification;

[0117] The technical solution of the embodiment of the present invention is: using fast-breaking emulsified asphalt and external heating to assist in curing, construction can be carried out under different climatic conditions, especially in rainy or snowy areas. The setting of the shelter can protect the construction environment from the influence of weather changes, ensure the smooth progress of construction, and at the same time improve the construction speed, quickly restore the road's traffic capacity, and reduce traffic risks caused by road damage.

[0118] Example 4

[0119] like Figure 2 As shown, based on Examples 1 and 2, a method for rapid cold repair of an asphalt pavement according to an embodiment of the present invention comprises:

[0120] Based on the first repair table, the second repair table and the target repair table obtained by analysis, the specific construction aspects of the pits to be repaired are optimized;

[0121] In some embodiments, the pits to be constructed in the middle of the construction sequence have moderate engineering workload and moderate time consumption, and the pits are repaired by mixing cold-mixed asphalt and prefabricated asphalt bricks;

[0122] It should be noted that the middle construction sequence refers to the pits to be constructed that are ranked in the top 60% to 30% in the first repair table, the second repair table, or the target repair table;

[0123] It should also be noted that when the size of the pothole to be repaired is moderate, directly filling it with cold-mixed asphalt cannot achieve rapid solidification and cannot quickly restore the road to smoothness. Therefore, the asphalt mixture can be prefabricated into solidified asphalt bricks for auxiliary filling to speed up the curing time;

[0124] Specifically, the specific ingredients of cold mix asphalt are: 82% aggregates, including but not limited to coarse mineral aggregates, fine mineral aggregates and mineral powder, which serve as the basic skeleton structure of cold mix asphalt and enhance the strength and stability of cold mix asphalt; 14% emulsified asphalt, including but not limited to asphalt, emulsifiers, stabilizers, accelerators and water, which provide adhesion and plasticity for cold mix asphalt; 4% additives, including but not limited to modifiers, anti-aging agents and adhesives, which improve the performance of cold mix asphalt and enhance the stability and durability of cold mix asphalt;

[0125] Use fast-breaking emulsified asphalt to make cold-mix asphalt, add appropriate additives to promote the solidification of cold-mix asphalt, and use external heat source heating for auxiliary. Provide shelters to shield rain and snow on rainy and snowy days, keep the potholes to be repaired clean and dry, and use vibrating plate compactors to promote solidification;

[0126] Example 5

[0127] like Figure 2 As shown, based on Examples 1 and 2, a method for rapid cold repair of an asphalt pavement according to an embodiment of the present invention comprises:

[0128] Based on the first repair table, the second repair table and the target repair table obtained by analysis, the specific construction aspects of the pits to be repaired are optimized;

[0129] In some embodiments, the pits to be constructed later in the construction sequence have a smaller construction volume and a shorter construction time, and cold-mix asphalt is used to directly fill the pits when repairing them;

[0130] It should be noted that the latter construction sequence refers to the pits to be constructed that are ranked in the last 40% in the first repair table, the second repair table, or the target repair table;

[0131] It should also be noted that when the scale of the pothole to be repaired is small, it can be directly filled with cold mix asphalt. A small amount of cold mix asphalt can solidify in a short time to quickly restore the road to normal;

[0132] Specifically, the specific ingredients of cold mix asphalt are: 85% aggregates, including but not limited to coarse mineral aggregates, fine mineral aggregates and mineral powder, which serve as the basic skeleton structure of cold mix asphalt and enhance the strength and stability of cold mix asphalt; 13% emulsified asphalt, including but not limited to asphalt, emulsifiers, stabilizers, accelerators and water, which provide adhesion and plasticity for cold mix asphalt; 2% additives, including but not limited to modifiers, anti-aging agents and adhesives, which improve the performance of cold mix asphalt and enhance the stability and durability of cold mix asphalt;

[0133] Use medium-crushing emulsified asphalt to make cold-mix asphalt, add appropriate additives to promote the solidification of cold-mix asphalt, and use external heat source heating for auxiliary. Provide shelters to shield rain and snow on rainy and snowy days, keep the pits to be repaired clean and dry, and use vibrating plate compactors to promote solidification;

[0134] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for rapid cold patching of asphalt pavement, characterized by: include: Acquiring performance data of a pothole to be repaired contained in the road surface to be repaired, wherein the performance data includes an area of ​​the pothole to be repaired and a depth of the pothole to be repaired; Based on the performance data of the potholes to be repaired, the abnormal performance values ​​of the potholes to be repaired are obtained by processing and analyzing, and the potholes to be repaired are sorted according to the abnormal performance values ​​to generate a first repair table; Obtaining deviation data of the pit to be repaired, wherein the deviation data includes a center deviation length of the pit to be repaired; Based on the processing and analysis of the deviation data, the deviation length ratio is obtained, and the pits to be repaired are sorted according to the deviation length ratio to obtain a second repair table; Compare and analyze the first repair table and the second repair table to obtain a mismatch quantity ratio and a mismatch degree value; The mismatch degree value is compared with a mismatch degree threshold, and if the mismatch degree value is greater than the mismatch degree threshold, a mismatch signal is generated; Based on the mismatch signal, a priority ranking value is determined, a target repair table is generated according to the priority ranking value, and the pit to be repaired is repaired according to the target repair table; Based on the first repair table, the second repair table and the target repair table obtained through analysis, the specific construction aspects of the potholes to be repaired are optimized.

2. A method for rapid cold patching of asphalt pavement according to claim 1, characterized in that: The specific process of obtaining the abnormal performance value is as follows: A plurality of collection points are respectively set inside the pit to be repaired, the depth of the pit to be repaired is collected at each collection point, and the sum is averaged to obtain the depth of the pit to be repaired; Based on any pothole to be repaired; Obtaining the area of ​​the pothole to be repaired, and performing ratio processing on the area of ​​the pothole to be repaired and the total area of ​​the road surface to be repaired to obtain the area ratio of the pothole to be repaired; Obtaining the depth of the pit to be repaired, and performing ratio processing with the depth threshold of the pit to be repaired to obtain the depth ratio of the pit to be repaired; The area ratio and the depth ratio of the pit to be repaired are summed to obtain an abnormal performance value of the pit to be repaired, which is marked as YC.

3. The method for rapid cold patching of asphalt pavement according to claim 1 is characterized by: The specific process of obtaining the first repair table is as follows: The pits to be repaired are sorted in descending order according to the abnormal performance values ​​to obtain a first repair table, and the pits to be repaired are numbered according to the ranking order of the first repair table, and the numbering is: 1.2.3...n, where n represents the total number of pits to be repaired.

4. The method for rapid cold patching of asphalt pavement according to claim 1, characterized in that: The specific process of obtaining the second repair table is as follows: Obtain the center point of the pothole to be repaired, measure the vertical distance from the center point of the pothole to the center line of the road to be repaired, and obtain the center deviation length of the pothole to be repaired; Based on any pothole to be repaired; Get the center deviation length of the pit to be repaired, and compare it with the total center deviation length to get the deviation length ratio, which is marked as PL The total length of center deviation is the sum of the lengths of center deviations of all the potholes to be repaired; Based on the obtained deviation length ratio, the pits to be repaired are sorted in ascending order of the deviation length ratio to obtain a second repair table.

5. The method for rapid cold patching of asphalt pavement according to claim 1, characterized in that: The specific process of obtaining the mismatch quantity ratio is as follows: Comparing the first repair table with the second repair table specifically includes: Integrate the numbers of the pits to be repaired in the same sorting position in the first repair table and the second repair table into a number group; Based on any number group; If the numbers in the number group are not the same, the number group is marked as an unmatched number group; If the numbers in the number group are the same, the number group is marked as a matching number group; The number of unmatched number groups is counted and compared with the total number of number groups to obtain the unmatched number ratio, which is marked as BP.

6. The method for rapid cold patching of asphalt pavement according to claim 1, characterized in that: The specific process of obtaining the mismatch degree value is as follows: Perform difference processing on the numbers in the mismatched number group, and take the absolute value of the difference to obtain the number difference of the mismatched group, sum and average the number differences of all the mismatched number groups to obtain the number difference mean, perform ratio processing on the number difference mean and the number difference maximum value to obtain the mismatch degree value, and mark it as CD; The maximum number difference is n-1.

7. The method for rapid cold patching of asphalt pavement according to claim 1, characterized in that: The specific process of obtaining the mismatch value is as follows: The mismatch quantity ratio BP and the mismatch degree value CD are processed to calculate the mismatch value, which is marked as PP.

8. The method for rapid cold patching of asphalt pavement according to claim 1, characterized in that: The specific comparison process of the mismatch value and the mismatch threshold is: comparing the mismatch value to a mismatch threshold; If the mismatch is greater than the mismatch threshold, a mismatch signal is generated; If the mismatch value is less than or equal to the mismatch threshold, a match signal is generated; Based on the matching signal, the first repairing table or the second repairing table is selected to repair the pit to be repaired.

9. A method for rapid cold patching of asphalt pavement according to claim 8, characterized in that: The specific acquisition process of the target repair table is as follows: Obtain the abnormal performance value and deviation length ratio of the pothole to be repaired, perform data processing, obtain the priority ranking value through calculation, and mark it as YX; The pits to be repaired are sorted from large to small according to the priority sorting values ​​to obtain a target repair table, and the pits to be repaired are repaired according to the target repair table.

10. The method for rapid cold patching of asphalt pavement according to claim 1, characterized in that: The specific optimization process of the construction sequence is as follows: The pits to be constructed at the front of the construction sequence have a large amount of work and take a long time. When repairing the pits, cold-mixed asphalt and prefabricated asphalt bricks are used to mix and fill them. The specific ingredients of cold mix asphalt are: 80% aggregates, including but not limited to coarse mineral aggregates, fine mineral aggregates and mineral powder, which serve as the basic skeleton structure of cold mix asphalt and enhance the strength and stability of cold mix asphalt; 15% emulsified asphalt, including but not limited to asphalt, emulsifiers, stabilizers, accelerators and water, which provide adhesion and plasticity for cold mix asphalt; 5% additives, including but not limited to modifiers, anti-aging agents and adhesives, which improve the performance of cold mix asphalt and enhance the stability and durability of cold mix asphalt; Use quick-break emulsified asphalt to make cold-mix asphalt, add appropriate additives to promote the solidification of cold-mix asphalt, and use external heat source to assist heating. Provide shelter on rainy and snowy days to shield against rain and snow, keep the potholes to be repaired clean and dry, and use a vibrating plate compactor to promote solidification.

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