Method for precise arrangement and alignment of ram points of airport runway hydraulic rammer

Abstract

The application discloses an airport runway hydraulic rammer rammer point accurate layout and alignment method, relates to the technical field of foundation treatment, and after the first and second point ramming are completed, the full-ramming priority area set and the fully treated area set are determined by using the point ramming surveying coordinates, the point ramming ramming amount and the elevation after the point ramming, multiple full-ramming candidate point sets are generated under the premise of meeting the full-ramming lap joint requirements, the final full-ramming point set is determined according to the candidate full-ramming remaining insufficient area and the candidate full-ramming repeated coverage area, the full-ramming layout result is matched with the actual treatment condition after the first and second point ramming, the full-ramming alignment construction is realized through the vehicle-mounted positioning system, and the full-ramming layout pertinence and the airport runway foundation treatment uniformity are improved.

Description

Technical Field

[0001] This invention relates to the field of foundation treatment technology, specifically a method for precise layout and alignment of hydraulic tamping points for airport runways. Background Technology

[0002] Airport runway foundation treatment typically requires large-scale operations to be completed within a short construction window, and places high demands on the uniformity, bearing capacity, and settlement control of the treated foundation. Hydraulic rammers are often used for rapid foundation reinforcement in airport expansion and renovation projects due to their high mobility, fast construction speed, and applicability to locally restricted areas. However, the proper connection between the rammer point layout, the alternation of construction, and the alignment of the full rammer directly affects the uniformity of the entire treated area and the efficiency of subsequent construction.

[0003] In current construction practices, the first and second rounds of tack compaction are usually completed according to the design spacing, followed by full compaction according to the overlap requirements of the hammer bottom diameter. The measured coordinates, settlement, and post-compaction elevation collected after the first two rounds of tack compaction are mostly used for construction records, quality statistics, or anomaly verification. Full compaction points are usually generated according to fixed starting points and fixed overlap methods. There is a lack of a process to distinguish between insufficiently treated areas, unevenly treated areas, and fully treated areas based on the actual treatment results of the first two rounds of tack compaction before full compaction, and to select full compaction points accordingly. Summary of the Invention

[0004] This invention provides a method for precise layout and alignment of hydraulic tamping points on airport runways, solving the problems mentioned in the background art.

[0005] The method for precise layout and alignment of hydraulic tamping points on airport runways includes the following steps:

[0006] S1. After completing the first and second rounds of tack compaction on the airport runway, obtain the boundary data of the construction area and the set of tack compaction measured data. The set of tack compaction measured data includes the tack compaction measured coordinates, tack compaction settlement and post-tack compaction elevation corresponding to the first and second rounds of tack compaction, respectively.

[0007] S2. Generate a set of coverage calculation units based on the boundary data of the construction area, and calculate the point compaction processing results corresponding to the set of coverage calculation units based on the set of point compaction measured data. The point compaction processing results are used to represent the degree of processing and the degree of consistency between adjacent processing after the first and second rounds of point compaction.

[0008] S3. Determine the set of priority areas for full compaction and the set of areas that have been fully treated based on the results of the spot compaction. The set of priority areas for full compaction includes areas that were not adequately treated and areas that were unevenly treated after the first and second rounds of spot compaction.

[0009] S4. Using the set of areas with priority for full compaction as the priority processing object for full compaction, multiple sets of candidate points for full compaction are generated under the premise of meeting the requirements for full compaction overlap. The multiple sets of candidate points for full compaction include the set of regular full compaction points and the set of adjusted full compaction points obtained by translating the set of regular full compaction points.

[0010] S5. Calculate the remaining insufficient area of ​​each candidate full-compaction point set based on the set of priority full-compaction areas, and calculate the overlapping coverage area of ​​each candidate full-compaction point set based on the set of fully processed areas. Sort multiple candidate full-compaction point sets in ascending order of remaining insufficient area, and sort them in ascending order of overlapping coverage area when the remaining insufficient areas are the same. Determine the first-ranked candidate full-compaction point set as the final full-compaction point set. Generate full-compaction alignment guidance information based on the final full-compaction point set, so that the vehicle positioning system can guide the hydraulic tamper to perform full-compaction alignment construction based on the full-compaction alignment guidance information.

[0011] Preferably, in step S1, the set of point compaction measurement data includes multiple point compaction data records;

[0012] Each of the aforementioned point compaction data records includes the number of point compaction passes, point compaction number, measured coordinates of point compaction, elevation before point compaction, elevation after point compaction, and point compaction settlement.

[0013] The number of tamping passes is used to distinguish between the first and second tamping passes. The measured coordinates of the tamping passes are obtained by converting the hydraulic tamping positioning data collected by the vehicle positioning system. The tamping settlement is obtained by subtracting the tamping settlement from the tamping settlement elevation in the same tamping data record.

[0014] Preferably, in step S2, the set of coverage computing units is generated in the following manner:

[0015] The planar range defined by the boundary data of the construction area is divided into multiple coverage calculation units according to the preset unit side length;

[0016] Each of the coverage calculation units includes a unit boundary, a unit center point, and a unit area;

[0017] Coverage calculation units located within the plane range defined by the boundary data of the construction area are included in the coverage calculation unit set, and the area of ​​the coverage calculation units intersecting with the plane range is determined according to the overlapping area.

[0018] Preferably, in step S2, the point compaction processing result includes a point compaction processing degree value and a consistency value between adjacent processing steps;

[0019] The point compaction treatment degree value is calculated based on the positional relationship between the coverage calculation unit and the measured coordinates of the point compaction corresponding to the first and second rounds of point compaction, and in combination with the corresponding point compaction settlement and the post-point compaction elevation.

[0020] The adjacent processing consistency value is calculated based on the difference in the point compaction processing degree value between adjacent coverage calculation units.

[0021] Preferably, in step S3, the set of priority compaction areas and the set of fully processed areas are determined in the following way:

[0022] The coverage calculation unit whose point compaction degree value is lower than the preset point compaction degree requirement is identified as the insufficient processing calculation unit.

[0023] The coverage calculation unit whose adjacent processing consistency value is lower than the preset adjacent processing consistency requirement is identified as the processing unevenness calculation unit;

[0024] The insufficient processing calculation unit and the uneven processing calculation unit are merged into a full compaction priority calculation unit set, and adjacent calculation units in the full compaction priority calculation unit set are merged into a full compaction priority region set.

[0025] The coverage calculation units that are not included in the set of full-compaction priority calculation units are merged into the set of fully processed regions.

[0026] Preferably, in step S4, the set of conventional full-compaction points is generated in the following way:

[0027] The scope of the full compaction layout is determined based on the boundary data of the construction area.

[0028] The spacing between adjacent full compaction points is determined based on the hammer bottom diameter and the full compaction overlap requirements.

[0029] Starting from the preset full compaction starting point, full compaction points are arranged within the full compaction layout range according to the spacing between adjacent full compaction points, and the full compaction points form the conventional full compaction point set.

[0030] Preferably, in step S4, the set of adjusted full-compaction points is generated in the following way:

[0031] A preset translation distance set is generated based on the distance between adjacent full-compaction points and the preset translation step size;

[0032] The conventional full-compaction point set is translated as a whole according to the preset translation distance set to obtain multiple adjusted full-compaction point sets;

[0033] Each set of adjusted full compaction points maintains the spacing between adjacent full compaction points and meets the full compaction overlap requirements;

[0034] The set of conventional full compaction points and the multiple sets of adjusted full compaction points together constitute multiple sets of candidate full compaction points.

[0035] Preferably, in step S5, the remaining insufficient area of ​​the candidate full compaction is calculated in the following way:

[0036] For each set of candidate full-compaction points, the candidate full-compaction coverage area is determined based on the coordinates of each full-compaction point in the set and the diameter of the hammer bottom.

[0037] The number of full compaction coverage times is determined based on the overlap between each coverage calculation unit and the candidate full compaction coverage area;

[0038] Calculate the candidate post-compaction degree value based on the point compaction treatment degree value and the number of full compaction coverage times;

[0039] The remaining insufficient area of ​​the candidate full compaction is obtained by summing the area of ​​the covering calculation unit in the set of priority full compaction areas where the candidate full compaction post-processing degree value is lower than the preset full compaction post-processing degree requirement.

[0040] Preferably, in step S5, the candidate full-compaction repeated coverage area and the final set of full-compaction points are determined in the following way:

[0041] The area overlapping with the candidate full compaction coverage area in the set of fully processed areas is determined as the candidate full compaction repeated coverage area corresponding to the set of candidate full compaction points.

[0042] The multiple sets of candidate points for full compaction are sorted in ascending order of the remaining insufficient area of ​​the candidate full compaction points.

[0043] When two or more sets of candidate full-compaction points have the same remaining insufficient area, they are sorted a second time according to the candidate full-compaction overlapping coverage area from small to large.

[0044] The first-ranked candidate set of fully compacted points is determined as the final set of fully compacted points.

[0045] Preferably, in step S5, the full compaction alignment guidance information includes the final set of full compaction point coordinates, the full compaction construction sequence, and the full compaction alignment prompts.

[0046] The vehicle-mounted positioning system selects the coordinates of the final full compaction point to be constructed from the set of final full compaction point coordinates according to the full compaction construction sequence, and uses the coordinates of the final full compaction point to be constructed as the target full compaction point coordinates.

[0047] The vehicle-mounted positioning system generates the full compaction alignment prompt based on the target full compaction point coordinates and the current tamping hammer center projection coordinates, and guides the hydraulic tamper to move to the corresponding final full compaction point for full compaction construction based on the full compaction alignment prompt.

[0048] This invention provides a method for precise layout and alignment of hydraulic compaction points on airport runways, which has the following beneficial effects:

[0049] 1. After the first and second rounds of tack compaction are completed, the set of priority areas for full compaction and the set of areas that have been fully treated are determined by using the measured coordinates of the tack compaction, the settlement of the tack compaction, and the elevation after the tack compaction. Under the premise of meeting the requirements for full compaction overlap, multiple sets of candidate full compaction points are generated. Then, the final set of full compaction points is determined based on the remaining insufficient area of ​​the candidate full compaction points and the overlapping coverage area of ​​the candidate full compaction points. This ensures that the full compaction layout results match the actual treatment after the first two rounds of tack compaction. The full compaction alignment construction is achieved through a vehicle-mounted positioning system, which improves the targeting of the full compaction layout and the uniformity of the airport runway foundation treatment. Attached Figure Description

[0050] Figure 1 A schematic diagram illustrating the overall logic of the method for precise layout and alignment of hydraulic tamping points on airport runways.

[0051] Figure 2 A schematic diagram illustrating the logical relationship between the point compaction processing results and the region division;

[0052] Figure 3 A schematic diagram illustrating the logic of screening and aligning candidate points for full compaction. Detailed Implementation

[0053] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0054] Example 1

[0055] This embodiment is applied to the rapid treatment construction scenario of airport runway foundation. Specifically, it is applicable to construction areas in newly built or expanded airport runway areas, apron areas, taxiways and their adjacent work areas that require foundation treatment using hydraulic rammers. These construction areas typically have problems such as late site handover time, short construction period for overlapping projects, limited window for construction without interrupting flight operations, and existing facilities such as aviation fuel pipelines or oil depots restricting construction organization. Furthermore, subsequent pavement construction has requirements for foundation bearing capacity, compaction degree, treatment uniformity and settlement control. In this scenario, the hydraulic rammer is used to treat the foundation in the construction sequence of first-pass spot rammering, second-pass spot rammering and full-compaction. The measured data after spot rammering is collected by a vehicle-mounted positioning system for subsequent full-compaction point layout and full-compaction alignment construction.

[0056] This invention provides a method for precise layout and alignment of hydraulic compaction points on airport runways. Please refer to [link / reference]. Figure 1 This includes the following steps:

[0057] S1. After completing the first and second rounds of tack compaction on the airport runway, obtain the boundary data of the construction area and the set of tack compaction measured data. The set of tack compaction measured data includes the tack compaction measured coordinates, tack compaction settlement and post-tack compaction elevation corresponding to the first and second rounds of tack compaction, respectively.

[0058] S2. Generate a set of coverage calculation units based on the boundary data of the construction area, and calculate the point compaction processing results corresponding to the set of coverage calculation units based on the set of point compaction measured data. The point compaction processing results are used to represent the degree of processing and the degree of consistency between adjacent processing after the first and second rounds of point compaction.

[0059] S3. Determine the set of priority areas for full compaction and the set of areas that have been fully treated based on the results of the spot compaction. The set of priority areas for full compaction includes areas that were not adequately treated and areas that were unevenly treated after the first and second rounds of spot compaction.

[0060] S4. Using the set of areas with priority for full compaction as the priority processing object for full compaction, multiple sets of candidate points for full compaction are generated under the premise of meeting the requirements for full compaction overlap. The multiple sets of candidate points for full compaction include the set of regular full compaction points and the set of adjusted full compaction points obtained by translating the set of regular full compaction points.

[0061] S5. Calculate the remaining insufficient area of ​​each candidate full-compaction point set based on the set of priority full-compaction areas, and calculate the overlapping coverage area of ​​each candidate full-compaction point set based on the set of fully processed areas. Sort multiple candidate full-compaction point sets in ascending order of remaining insufficient area, and sort them in ascending order of overlapping coverage area when the remaining insufficient areas are the same. Determine the first-ranked candidate full-compaction point set as the final full-compaction point set. Generate full-compaction alignment guidance information based on the final full-compaction point set, so that the vehicle positioning system can guide the hydraulic tamper to perform full-compaction alignment construction based on the full-compaction alignment guidance information.

[0062] It should be noted that when performing step S2, the boundary data of the construction area is first divided into a set of coverage calculation units. Then, the measured coordinates, settlement, and post-compaction elevation of the first and second rounds of tamping are associated with the corresponding coverage calculation units. The tamping treatment degree value is calculated based on the coordinate coverage, settlement compliance, and post-compaction elevation compliance of the corresponding coverage calculation units. The consistency value of adjacent treatments is calculated based on the difference in the tamping treatment degree values ​​between adjacent coverage calculation units.

[0063] When executing step S3, the coverage calculation unit whose point compaction degree value is lower than the preset point compaction degree requirement is identified as the insufficient processing calculation unit, and the coverage calculation unit whose adjacent processing consistency value is lower than the preset adjacent processing consistency requirement is identified as the uneven processing calculation unit. The insufficient processing calculation unit and the uneven processing calculation unit are merged into a full compaction priority area set.

[0064] When executing step S5, firstly, the candidate full compaction coverage range is generated based on the coordinates of the full compaction points and the diameter of the hammer bottom in each full compaction candidate point set. Then, the number of full compaction coverages is determined based on the overlap between the candidate full compaction coverage range and the coverage calculation unit. Finally, the candidate full compaction post-treatment degree value is calculated based on the point compaction treatment degree value, the number of full compaction coverages, and the preset full compaction treatment increment table established in the test section.

[0065] For each set of candidate full-compaction points, sum the areas of the coverage calculation units in the set of priority full-compaction areas where the candidate full-compaction post-processing degree value is lower than the preset full-compaction post-processing degree requirement to obtain the remaining insufficient area of ​​the candidate full-compaction. Then, sum the areas in the set of fully-processed areas that overlap with the candidate full-compaction coverage area to obtain the candidate full-compaction overlapping coverage area.

[0066] Multiple candidate points for full compaction are first sorted in ascending order of the remaining insufficient area of ​​the candidate full compaction. If the remaining insufficient areas of the candidate full compaction are the same, they are then sorted in ascending order of the overlapping coverage area of ​​the candidate full compaction. The candidate point set with the highest ranking is determined as the final set of full compaction points, and the vehicle positioning system generates full compaction alignment guidance information based on the final set of full compaction points.

[0067] In this embodiment, after the first and second rounds of tack compaction, the full compaction is not directly laid out according to the fixed full compaction starting point. Instead, the tack compaction treatment results are calculated using the measured coordinates, settlement, and post-compaction elevation of the tack compaction. Then, based on the tack compaction treatment results, the set of priority full compaction areas and the set of fully treated areas are distinguished. Under the premise of meeting the full compaction overlap requirements, multiple sets of candidate full compaction points are generated, so that the layout of full compaction points corresponds to the actual treatment situation after the first two rounds of tack compaction. Thus, this embodiment can prioritize reducing the remaining insufficient area in the priority full compaction area set and reduce the overlapping coverage area in the fully treated area set when the remaining insufficient area is the same. Then, the final full compaction point set is implemented in the vehicle-mounted positioning and alignment construction through full compaction alignment guidance information, thereby improving the targeting of full compaction layout and the uniformity of airport runway foundation treatment.

[0068] Example 2

[0069] Please see Figure 2 Specifically: In step S1, the set of point compaction measurement data includes multiple point compaction data records.

[0070] Each of the aforementioned point compaction data records includes the number of point compaction passes, point compaction number, measured coordinates of point compaction, elevation before point compaction, elevation after point compaction, and settlement of point compaction.

[0071] The number of tamping passes is used to distinguish between the first and second tamping passes. The tamping pass numbers are written in the order of construction. The tamping settlement is obtained by subtracting the tamping settlement from the tamping settlement elevation in the same tamping data record.

[0072] The vehicle-mounted positioning system collects hydraulic rammer positioning data, which includes vehicle positioning coordinates and vehicle orientation. Before construction, the installation offset from the vehicle positioning reference point to the center projection position of the rammer is measured. During data processing, the center projection position coordinates of the rammer are calculated based on the vehicle positioning coordinates, vehicle orientation, and installation offset, and these center projection position coordinates of the rammer are used as the point compaction measurement coordinates.

[0073] The pre-compaction elevation of the point tamping is the ground elevation measured before the corresponding point tamping is constructed. The post-compaction elevation of the point tamping is the post-compaction elevation measured after the corresponding point tamping has completed the specified number of blows. When there are multiple elevation data collections for the same point tamping number, the last elevation data after the specified number of blows is used as the post-compaction elevation.

[0074] In step S2, the set of coverage computing units is generated in the following way:

[0075] The planar range defined by the boundary data of the construction area is divided into multiple coverage calculation units according to the preset unit side length.

[0076] Each of the coverage calculation units includes a unit boundary, a unit center point, and a unit area.

[0077] Coverage calculation units located within the plane range defined by the boundary data of the construction area are included in the coverage calculation unit set, and the area of ​​the coverage calculation units intersecting with the plane range is determined according to the overlapping area.

[0078] Specifically: First, the boundary data of the construction area, the coordinates of the compaction measurement points, and the elevation measurement points are unified under the same plane coordinate system. Then, a regular grid is generated according to the preset unit side length. The grid that falls completely within the plane range limited by the boundary data of the construction area is determined as the coverage calculation unit. The grid that intersects with the boundary data of the construction area is also determined as the coverage calculation unit, but the unit area is the area of ​​the overlapping part. The grid that does not overlap with the boundary data of the construction area does not participate in the subsequent calculation.

[0079] In this embodiment, the preset unit side length is set according to the hammer bottom diameter and the on-site data processing accuracy. When the hydraulic rammer bottom diameter is 1.5m, the preset unit side length can be 0.5m. In actual construction, the preset unit side length can be adjusted according to the hydraulic rammer bottom diameter, the construction area area and the computing power of the vehicle terminal, but the adjusted preset unit side length should be smaller than the hammer bottom diameter.

[0080] In step S2, the point compaction processing result includes the point compaction processing degree value and the consistency value between adjacent processing.

[0081] The point compaction treatment degree value is calculated based on the positional relationship between the coverage calculation unit and the measured coordinates of the point compaction corresponding to the first and second rounds of point compaction, and in combination with the corresponding point compaction settlement and the post-point compaction elevation.

[0082] The adjacent processing consistency value is calculated based on the difference in the point compaction processing degree value between adjacent coverage calculation units.

[0083] Specifically: For any coverage calculation unit, a circular search range is established with the unit center point as the center and the preset point compaction influence radius as the radius. The first and second round point compaction data records whose measured point compaction coordinates fall within the circular search range are used as candidate point compaction data records.

[0084] For the same coverage calculation unit, in the candidate point compaction data records corresponding to each pass of point compaction, the point compaction data record closest to the unit center point of the coverage calculation unit is selected as the data record participating in the calculation for that pass.

[0085] When both the first and second tack compaction have data records for calculation, the covering calculation unit corresponds to two data records for calculation. When only the first or second tack compaction has data records for calculation, the covering calculation unit corresponds to one data record for calculation. When neither the first nor the second tack compaction has data records for calculation, the corresponding data record for calculation of the covering calculation unit is empty.

[0086] The preset influence radius of the tamping is set according to the tamping spacing. When the tamping spacing is 3.2m, the preset influence radius of the tamping can be 1.6m.

[0087] In this embodiment, the point compaction treatment degree value is used to represent the construction treatment status of the coverage calculation unit after the first and second point compaction, and is used to subsequently divide the full compaction priority area set. The point compaction treatment degree value is not used as a direct substitute for the foundation bearing capacity, compaction degree or settlement test results.

[0088] The point tamping coordinate coverage value is used to represent the spatial coverage of the coverage calculation unit by the first and second point tamping. The point tamping coordinate coverage value is the ratio of the actual number of calculation passes to the preset number of calculation passes, and the ratio is taken as 1 when it exceeds 1.

[0089] The actual number of calculation passes is the number of point compaction passes with data records participating in the calculation, and the preset number of participation passes is 2.

[0090] The point compaction settlement conformity value is used to indicate whether the point compaction settlement in the data records involved in the calculation falls within the preset compaction settlement range. The point compaction settlement conformity value is the ratio of the number of data records involved in the calculation whose point compaction settlement falls within the preset compaction settlement range to the total number of data records involved in the calculation.

[0091] The preset settlement range is determined by the qualified settlement control range in the test section or the qualified settlement control range in the construction plan.

[0092] The point compaction elevation conformity value is used to indicate whether the post-compaction elevation in the data records involved in the calculation falls within the preset post-compaction elevation range of the corresponding coverage calculation unit. The point compaction elevation conformity value is the ratio of the number of data records involved in the calculation whose post-compaction elevation falls within the preset post-compaction elevation range of the corresponding coverage calculation unit to the total number of data records involved in the calculation.

[0093] The post-compaction elevation range of the preset points corresponding to the coverage calculation unit is determined by the design control elevation and allowable elevation deviation of the location of the coverage calculation unit.

[0094] When the data record for the calculation is empty, the point compaction degree value of the covered calculation unit is set to 0.

[0095] When the data record involved in the calculation is not empty, the point compaction coordinate coverage value, point compaction settlement conformity value and point compaction elevation conformity value are weighted according to the preset weight to obtain the point compaction processing degree value of the coverage calculation unit.

[0096] The preset weights include coordinate coverage weight, compaction conformance weight, and elevation conformance weight, and the sum of the coordinate coverage weight, compaction conformance weight, and elevation conformance weight is 1.

[0097] In the airport runway hydraulic compaction construction scenario set in Example 1, the coordinate coverage weight, compaction conformity weight, and elevation conformity weight are determined based on the correspondence between the compaction measurement data at the midpoint of the test section and the compaction degree test results, elevation re-measurement results, and settlement control results. If the test section does not show that the three indicators have priority, the coordinate coverage weight, compaction conformity weight, and elevation conformity weight can all be one-third.

[0098] The value of the point compaction processing degree ranges from 0 to 1, where 0 indicates that the coverage calculation unit did not obtain effective processing data from the first and second point compaction, and 1 indicates that the coordinate coverage, compaction settlement and post-compaction elevation of the coverage calculation unit meet the corresponding preset requirements.

[0099] Specifically: When calculating the degree of consistency of adjacent processing, first select the coverage calculation unit that has a common boundary with the current coverage calculation unit and is located within the boundary data limit of the construction area as the existing adjacent coverage calculation unit.

[0100] During data processing, the absolute value of the difference between the point compaction treatment degree value of the coverage calculation unit and the point compaction treatment degree value of each existing adjacent coverage calculation unit is calculated, and the absolute value of each difference is averaged to obtain the adjacent treatment difference value.

[0101] The result of subtracting the difference value between adjacent processes from 1 is determined as the consistency value between adjacent processes. When the calculation result is less than 0, it is taken as 0.

[0102] For coverage calculation units located at the boundary of the construction area, their adjacent processing consistency value is not directly determined as 1, but is calculated based on the number of their existing adjacent coverage calculation units.

[0103] When a certain coverage calculation unit does not have any existing adjacent coverage calculation units, the coverage calculation unit does not participate in the evaluation of the degree of consistency of adjacent processing, and is still judged whether it belongs to the insufficient processing calculation unit based on its point compaction processing degree value.

[0104] During data processing, after the above calculations are completed, a point compaction processing result record is generated for each coverage calculation unit in the coverage calculation unit set. The point compaction processing result record includes the unit number, unit center point, unit area, point compaction processing degree value, and adjacent processing consistency value. Coverage calculation units that did not participate in the evaluation of adjacent processing consistency value are marked as not participating in the evaluation in the point compaction processing result record.

[0105] In this embodiment, the measured coordinates, pre-compaction elevation, post-compaction elevation, and settlement of the first and second rounds of tack compaction are compiled into tack compaction data records. The boundary data of the construction area is divided into a set of coverage calculation units, so that the actual construction results after the first two rounds of tack compaction correspond to specific coverage calculation units. At the same time, by calculating the tack compaction treatment degree value and the adjacent treatment consistency value corresponding to each coverage calculation unit, a data basis is provided for the selection of the full compaction priority area set, the fully treated area set, and the subsequent full compaction candidate point set.

[0106] Example 3

[0107] Please see Figure 3 Specifically, in step S3, the set of priority compaction areas and the set of fully processed areas are determined in the following way:

[0108] The coverage calculation unit whose point compaction degree value is lower than the preset point compaction degree requirement is identified as the insufficient processing calculation unit.

[0109] The coverage calculation unit whose adjacent processing consistency value is lower than the preset adjacent processing consistency requirement is identified as the processing unevenness calculation unit.

[0110] The insufficient processing calculation unit and the uneven processing calculation unit are merged into a full compaction priority calculation unit set, and adjacent calculation units in the full compaction priority calculation unit set are merged into a full compaction priority region set.

[0111] The coverage calculation units that are not included in the set of full-compaction priority calculation units are merged into the set of fully processed regions.

[0112] In the airport runway hydraulic compaction construction scenario set in Example 1, the preset point compaction treatment degree requirement is determined based on the point compaction treatment degree value corresponding to the coverage calculation unit that meets the foundation treatment requirements in the test section. For example, when the point compaction treatment degree value of the qualified coverage calculation unit in the test section is concentrated between 0.75 and 1, 0.75 can be determined as the preset point compaction treatment degree requirement.

[0113] The preset requirement for the degree of consistency of adjacent processing is determined based on the degree of consistency of adjacent processing of adjacent qualified coverage calculation units in the test section. For example, if the degree of consistency of adjacent processing of adjacent qualified coverage calculation units in the test section is concentrated between 0.80 and 1, 0.80 can be determined as the preset requirement for the degree of consistency of adjacent processing.

[0114] During data processing, each coverage calculation unit in the coverage calculation unit set is read one by one. If the point compaction processing degree value of a certain coverage calculation unit is lower than the preset point compaction processing degree requirement, the coverage calculation unit is written into the list of insufficient processing calculation units.

[0115] If a certain coverage calculation unit generates a value indicating the degree of consistency between adjacent processes, and this value is lower than the preset requirement for the degree of consistency between adjacent processes, then the coverage calculation unit is added to the list of unevenly processed calculation units.

[0116] If a certain coverage calculation unit does not participate in the evaluation of the consistency of adjacent processing values, the judgment of uneven processing will not be performed, and it will still be judged whether it belongs to the calculation unit with insufficient processing based on its point compaction processing value.

[0117] If the same coverage calculation unit belongs to both the under-processing calculation unit and the uneven-processing calculation unit, it will be retained only once during merging to avoid the same coverage calculation unit being repeatedly counted in the full-compaction priority area set.

[0118] Specifically: the list of insufficient processing calculation units and the list of uneven processing calculation units are merged to obtain the set of full-compaction priority calculation units.

[0119] Adjacentity judgment is performed on the covered calculation units in the set of full compaction priority calculation units. When two covered calculation units have a common boundary, the two covered calculation units are merged into the same unit group, and the planar area corresponding to each unit group is determined as a full compaction priority area.

[0120] It should be noted that, in this embodiment, "adjacent" means that two coverage calculation units have a common boundary. Two coverage calculation units that only touch at a corner and do not have a common boundary are not merged into the same full compaction priority area.

[0121] In this embodiment, the set of fully processed areas consists of coverage calculation units that are not included in the set of full compaction priority calculation units. The set of fully processed areas is used for subsequent calculation of candidate full compaction repeated coverage area and does not replace the compaction degree, bearing capacity or settlement test results.

[0122] When the set of priority calculation units for full compaction is empty, the set of priority regions for full compaction is determined to be empty, and all coverage calculation units in the set of coverage calculation units are assigned to the set of regions that have been fully processed.

[0123] In step S4, the set of conventional full-compaction points is generated in the following way:

[0124] The scope of the full compaction layout is determined based on the boundary data of the construction area.

[0125] The spacing between adjacent tamping points is determined based on the hammer bottom diameter and the required overlap of the tamping points.

[0126] Starting from the preset full compaction starting point, full compaction points are arranged within the full compaction layout range according to the spacing between adjacent full compaction points, and the full compaction points form the conventional full compaction point set.

[0127] Specifically: The scope of full compaction is determined based on the boundary data of the construction area. If there is an area within the construction area that is clearly not involved in the hydraulic compaction, the scope of full compaction is determined after deducting that area from the boundary data of the construction area.

[0128] When the construction area is divided into multiple construction zones, the full compaction points of each construction zone are generated under the same plane coordinate system. The full compaction points located at the boundary of adjacent construction zones are not cut off according to the zone boundary. The overlapping area of ​​the hammer bottom coverage range and the coverage calculation unit is uniformly included in the calculation rules of the full compaction coverage times in step S5.

[0129] The coverage area of ​​the hammer bottom of the full compaction point is a circular plane area formed by taking the coordinates of the full compaction point as the center and the diameter of the hammer bottom as the diameter. If the coverage area of ​​the hammer bottom overlaps with the full compaction layout area, the full compaction point is retained; otherwise, the full compaction point is discarded.

[0130] The spacing between adjacent full-compaction points is calculated as “hammer bottom diameter × (1 - preset overlap ratio)”. For example, if the hammer bottom diameter is 1.5m and the full-compaction overlap is one-quarter of the hammer bottom diameter, the spacing between adjacent full-compaction points is 1.125m.

[0131] Specifically: When generating a set of regular full compaction points, first establish a plane layout coordinate system, take the direction of the airport runway construction survey control line as the full compaction direction, and take the direction perpendicular to the full compaction direction as the perpendicular full compaction direction.

[0132] Starting from the preset full compaction starting point, full compaction points are generated sequentially along the full compaction row direction according to the spacing between adjacent full compaction points. After completing one row, the position is moved one spacing between adjacent full compaction points along the direction perpendicular to the full compaction row, and then the next row of full compaction points is generated.

[0133] Each generated full compaction point is filtered according to whether its hammer bottom coverage area overlaps with the full compaction layout area, and the retained full compaction points form a regular full compaction point set.

[0134] In step S4, the set of adjusted full-compaction points is generated in the following way:

[0135] A preset translation distance set is generated based on the distance between adjacent full-compaction points and the preset translation step size.

[0136] The conventional full-compaction point set is translated as a whole according to the preset translation distance set to obtain multiple adjusted full-compaction point sets.

[0137] Each set of adjusted full compaction points maintains the spacing between adjacent full compaction points and meets the full compaction overlap requirements.

[0138] The set of conventional full compaction points and the multiple sets of adjusted full compaction points together constitute multiple sets of candidate full compaction points.

[0139] Specifically: The preset translation step size is less than the distance between adjacent full compaction points. The translation distance starts from 0 and is taken sequentially according to the preset translation step size until the next value is no longer less than the distance between adjacent full compaction points. The obtained translation distances form a preset translation distance set.

[0140] For example, when the distance between adjacent full-compaction points is 1.125m, the preset translation step size can be one-quarter of the distance between adjacent full-compaction points, i.e., 0.28125m. The preset translation distance set includes 0m, 0.28125m, 0.5625m and 0.84375m.

[0141] During data processing, row-direction translation distance and column-direction translation distance are selected from the preset translation distance set, and the coordinates of each full-compaction point in the conventional full-compaction point set are translated as a whole along the full-compaction row direction and perpendicular to the full-compaction row direction.

[0142] If both the row-direction translation distance and the column-direction translation distance are 0, the set of adjustment points will not be generated again. If at least one of the row-direction translation distance and the column-direction translation distance is not 0, a set of adjustment points will be generated based on the translated points.

[0143] After each overall translation, the boundaries of the tamping points after translation are screened, and the tamping points whose hammer bottom coverage area overlaps with the tamping layout area are retained. The retained translation points form an adjusted tamping point set.

[0144] Since the adjusted set of full compaction points is obtained by translating the regular set of full compaction points as a whole, the spacing between adjacent full compaction points within the set is still maintained. Therefore, each adjusted set of full compaction points meets the requirements for full compaction overlap.

[0145] The set of regular full tamping points and multiple sets of adjusted full tamping points together form multiple sets of candidate full tamping points. Subsequent steps evaluate the remaining insufficient area and the overlapping coverage area of ​​candidate full tamping points corresponding to each set of candidate full tamping points, and determine the final set of full tamping points from multiple sets of candidate full tamping points.

[0146] In this embodiment, the set of priority areas for full compaction and the set of areas that have been fully treated are determined based on the point compaction treatment degree value and the adjacent treatment consistency value. Under the premise of meeting the full compaction overlap requirements, a set of regular full compaction points and multiple sets of adjusted full compaction points are generated, so that multiple sets of full compaction candidate points that can be evaluated and screened are formed before full compaction construction.

[0147] Example 4

[0148] Please see Figure 3 Specifically, in step S5, the remaining insufficient area of ​​the candidate fully compacted area is calculated in the following way:

[0149] For each set of candidate full compaction points, the candidate full compaction coverage area is determined based on the coordinates of each full compaction point in the set and the diameter of the hammer bottom.

[0150] The number of full compaction coverage times is determined based on the overlap between each coverage calculation unit and the candidate full compaction coverage area.

[0151] The candidate post-compaction degree value is calculated based on the point compaction treatment degree value and the number of full compaction coverage times.

[0152] The remaining insufficient area of ​​the candidate full compaction is obtained by summing the area of ​​the covering calculation unit in the set of priority full compaction areas where the candidate full compaction post-processing degree value is lower than the preset full compaction post-processing degree requirement.

[0153] Specifically: For any set of candidate points for full compaction, first read the coordinates of each full compaction point in the set, then generate a circular plane range with the coordinates of each full compaction point as the center and the diameter of the hammer bottom as the diameter, and the union of all the circular plane ranges is taken as the candidate full compaction coverage range corresponding to the set of candidate points for full compaction.

[0154] For example, when the bottom diameter of the hydraulic tamping hammer is 1.5m, the radius of the circular plane range corresponding to each full tamping point is 0.75m. If a set of candidate full tamping points includes 500 full tamping points, then 500 circular plane ranges are generated respectively, and these circular plane ranges are superimposed on the set of coverage calculation units in the construction area for calculation.

[0155] During data processing, for each coverage calculation unit, the overlapping area between the coverage calculation unit and the full compaction coverage range of each single point is calculated, and each overlapping area is divided by the unit area of ​​the coverage calculation unit to obtain the single-point coverage area ratio of the corresponding full compaction coverage range.

[0156] When the coverage calculation unit is located at the boundary of adjacent construction zones, the single-point coverage area ratio is still calculated according to the overlapping area of ​​the coverage calculation unit and the single-point full compaction coverage range in each construction zone.

[0157] When the coverage area ratio of a single point is lower than the preset effective coverage ratio, the full compaction coverage range of that single point is not included in the full compaction coverage count of that coverage calculation unit.

[0158] When the coverage area ratio of a single point is not lower than the preset effective coverage ratio, the coverage area ratio of the single point is used as the single point coverage contribution value, and the coverage contribution values ​​of each single point corresponding to the same coverage calculation unit are summed to obtain the number of full compaction coverage times for the coverage calculation unit.

[0159] In this embodiment, the number of full compaction coverages is the number of coverages calculated based on the overlapping area ratio. When the coverage calculation unit and the single-point full compaction coverage range only have slight edge overlap, it is not counted as a complete full compaction coverage.

[0160] For example, the unit area of ​​a certain coverage calculation unit is 0.25m², and its overlap area with the first single-point full compaction coverage area is 0.20m², corresponding to a single-point coverage area ratio of 0.8. Its overlap area with the second single-point full compaction coverage area is 0.03m², corresponding to a single-point coverage area ratio of 0.12. When the preset effective coverage ratio is 0.5, the number of full compaction coverage times for this coverage calculation unit is 0.8.

[0161] Specifically: The candidate full compaction post-treatment degree value is calculated based on the point compaction treatment degree value and the number of full compaction coverage times. During the calculation, the candidate full compaction treatment supplementary value is determined according to the preset full compaction treatment increment table. Then, the point compaction treatment degree value is added to the candidate full compaction treatment supplementary value, and the calculation result greater than 1 is taken as 1.

[0162] In this embodiment, the preset full compaction treatment increment table is established from the test section data. When establishing the preset full compaction treatment increment table, the test section with the same soil layer type, moisture content control range, full compaction energy level, hammer bottom diameter and single-point full compaction blow count as the actual construction area is selected first. The test section is then divided into test section coverage calculation units in the same way as in Embodiment 2.

[0163] For each test section coverage calculation unit in the test section coverage calculation unit set, first calculate the pre-compaction degree value of the test section based on the first and second rounds of spot compaction data before full compaction, and then determine the number of full compaction coverage times of the test section based on the overlap area ratio between the test section coverage calculation unit and the hammer bottom coverage range of each full compaction point.

[0164] The pre-compaction degree value of the test section is obtained according to the calculation method of the spot compaction degree value in Example 2, and is used to represent the construction treatment status of the test section covering the calculation unit after two rounds of spot compaction before full compaction construction.

[0165] The post-compaction treatment value of the test section is calculated based on the number of times the test section is fully compacted, the post-compaction elevation, and the post-compaction test results. The post-compaction test results include at least one of the compaction test results, bearing capacity test results, and settlement retest results. The post-compaction elevation is the measured elevation of the test section coverage calculation unit after full compaction and leveling.

[0166] Specifically: whether the number of full compaction and coverage times of the test section falls within the corresponding coverage time range is taken as the full compaction and coverage compliance item; whether the post-full compaction elevation falls within the post-full compaction elevation control range of the corresponding test section coverage calculation unit is taken as the post-full compaction elevation compliance item; whether the post-full compaction test results meet the construction acceptance requirements is taken as the post-full compaction test compliance item; and calculate the post-full compaction treatment degree value of the test section based on the full compaction and coverage compliance item, the post-full compaction elevation compliance item, and the post-full compaction test compliance item.

[0167] In this embodiment, the full compaction coverage compliance item, the full compaction post-elevation compliance item, and the full compaction post-inspection compliance item are all set to 0 or 1. When the corresponding requirements are met, the value is set to 1, and when the corresponding requirements are not met, the value is set to 0. The post-compaction treatment degree value of the test section is obtained by the weighted result of the three items, and the weight of each item is determined according to the test section inspection data and construction quality control requirements.

[0168] During data processing, the value of the post-compaction treatment of the test section in the same test section coverage calculation unit is subtracted from the value of the pre-compaction treatment of the test section to obtain the full compaction treatment increment of the test section coverage calculation unit. Multiple full compaction treatment increments are grouped according to the coverage number interval in which the full compaction coverage of the test section is located, and the average value of the full compaction treatment increment of each group is calculated to form a preset full compaction treatment increment table.

[0169] For example, in a test section with a hammer base diameter of 1.5m, a full compaction energy level of not less than 55kJ, and a single-point full compaction blow count of 7 to 9, the following statistics show that when the full compaction coverage count is 0, the full compaction treatment increment is 0; when the full compaction coverage count is greater than 0 and less than 1, the full compaction treatment increment is 0.10; when the full compaction coverage count is not less than 1 and less than 2, the full compaction treatment increment is 0.16; when the full compaction coverage count is not less than 2 and less than 3, the full compaction treatment increment is 0.24; and when the full compaction coverage count is not less than 3, the full compaction treatment increment is 0.28. These corresponding relationships are then written into the preset full compaction treatment increment table.

[0170] During data processing, the system queries the preset full compaction processing increment table based on the number of full compaction coverages corresponding to the coverage calculation unit, and determines the full compaction processing increment obtained from the query as the candidate full compaction processing supplementary value corresponding to the coverage calculation unit.

[0171] For example, if the point compaction processing degree value of a certain coverage calculation unit is 0.68 and the number of full compaction coverage times is 0.8, and the candidate full compaction processing supplement value obtained by querying the preset full compaction processing increment table is 0.10, then the candidate full compaction post-processing degree value of this coverage calculation unit is 0.78.

[0172] For example, if the point compaction processing degree value of a certain coverage calculation unit is 0.68 and the number of full compaction coverage times is 1.6, and the candidate full compaction processing supplement value obtained by querying the preset full compaction processing increment table is 0.16, then the candidate full compaction post-processing degree value of this coverage calculation unit is 0.84.

[0173] It should be noted that the candidate full compaction post-treatment degree value is not directly determined to be 1 because the full compaction coverage number reaches 2 or more. Instead, it is calculated by querying the preset full compaction treatment increment table based on the converted full compaction coverage number corresponding to the coverage calculation unit, and combining it with the point compaction treatment degree value of the coverage calculation unit.

[0174] When the soil type, moisture content control range, full compaction energy level, hammer bottom diameter, or single-point full compaction blow count in the actual construction area are inconsistent with the test section conditions, the test section data with the same construction conditions should be reselected to establish a corresponding preset full compaction treatment increment table.

[0175] During data processing, the system reads the coverage calculation units in the set of priority areas for full compaction one by one. If the candidate full compaction post-processing degree value of a certain coverage calculation unit is lower than the preset full compaction post-processing degree requirement, the unit area of ​​the coverage calculation unit is included in the candidate full compaction remaining insufficient area corresponding to the set of candidate full compaction points.

[0176] For example, in a set of candidate full-compaction points, there are 40 coverage calculation units in the set of priority areas for full-compaction, each with an area of ​​0.25m². Among them, 12 coverage calculation units have a candidate full-compaction post-processing degree value of less than 0.90. Then, the remaining insufficient area for candidate full-compaction corresponding to the set of candidate full-compaction points is 3m².

[0177] It should be noted that the remaining insufficient area of ​​the candidate full tamping is not a simple geometric area outside the candidate full tamping coverage area, but rather the area in the full tamping priority area set that has not yet reached the preset full tamping post-processing requirements after the full tamping candidate point set has been fully tamped.

[0178] In step S5, the candidate full-compaction repeated coverage area and the final set of full-compaction points are determined in the following way:

[0179] The area overlapping with the candidate full compaction coverage area in the set of fully processed areas is determined as the candidate full compaction repeated coverage area corresponding to the set of candidate full compaction points.

[0180] The candidate points for full compaction are sorted in ascending order of the remaining insufficient area.

[0181] When two or more sets of candidate compaction points have the same remaining insufficient area, they are sorted a second time according to the overlapping coverage area of ​​the candidate compaction points from smallest to largest.

[0182] The first-ranked candidate set of fully compacted points is determined as the final set of fully compacted points.

[0183] Specifically: For each set of candidate full-compaction points, the system superimposes the set of fully processed areas with the candidate full-compaction coverage area corresponding to the set of candidate full-compaction points, calculates the overlapping area between the two, and uses the overlapping area as the candidate full-compaction repeated coverage area.

[0184] For example, if the candidate full compaction coverage area of ​​a certain set of candidate full compaction points overlaps with 80 coverage calculation units in a set of fully treated areas, and 60 coverage calculation units are completely covered with an area of ​​0.25 m², while the remaining 20 boundary coverage calculation units are covered with an area of ​​only 0.10 m², then the candidate full compaction overlap coverage area corresponding to this set of candidate full compaction points is 17 m².

[0185] During data processing, the remaining insufficient area of ​​the candidate full tamping is used as the first sorting criterion. The smaller the remaining insufficient area of ​​the candidate full tamping, the smaller the area of ​​the corresponding full tamping candidate point set that does not meet the standard in the full tamping priority area set after full tamping.

[0186] For example, if the remaining insufficient area of ​​candidate full tamping in candidate set A is 5m², and the remaining insufficient area of ​​candidate full tamping in candidate set B is 2m², even if the overlapping coverage area of ​​candidate full tamping in candidate set B is greater than that in candidate set A, candidate set B will be ranked before candidate set A.

[0187] Specifically: when the absolute value of the difference between the remaining insufficient area of ​​the candidate full tamping in two or more candidate full tamping point sets is not greater than the preset area tolerance, the remaining insufficient area of ​​the candidate full tamping in the two or more candidate full tamping point sets is regarded as the same, and then the overlapping coverage area of ​​the candidate full tamping is compared.

[0188] If the absolute value of the difference between the candidate full-compaction repeated coverage areas of two or more full-compaction candidate point sets is greater than the preset area tolerance, then the full-compaction candidate point set with the smaller candidate full-compaction repeated coverage area will be ranked first.

[0189] If the absolute value of the difference between the remaining insufficient areas of the candidate full compaction is not greater than the preset area tolerance, and the absolute value of the difference between the overlapping areas of the candidate full compaction is also not greater than the preset area tolerance, then the candidate full compaction construction path length of the corresponding full compaction candidate point set is calculated respectively, and the full compaction candidate point set with the smaller candidate full compaction construction path length is ranked first.

[0190] The length of the candidate full compaction construction path is calculated based on the coordinates of the full compaction points in the corresponding full compaction candidate point set and the preset full compaction construction sequence. Specifically, it is obtained by connecting the coordinates of adjacent full compaction points in sequence according to the preset full compaction construction sequence and summing the planar distances between adjacent full compaction points.

[0191] When two or more candidate full-compaction point sets have the same remaining insufficient area, overlapping coverage area, and construction path length, the candidate full-compaction point set with the smallest generation sequence number is ranked first. The generation sequence number is determined according to the generation order of conventional full-compaction point sets first, followed by adjusted full-compaction point sets.

[0192] It should be noted that the preset area tolerance is determined based on the unit area of ​​the coverage calculation unit. For example, the preset area tolerance can be taken as the unit area of ​​one coverage calculation unit. When the preset unit side length of the coverage calculation unit is 0.5m, the unit area of ​​one coverage calculation unit is 0.25m², so the preset area tolerance can be taken as 0.25m².

[0193] For example, if the preset area tolerance is 0.25m², the candidate area of ​​insufficient full tamping in candidate point set C is 2.00m², and the candidate area of ​​insufficient full tamping in candidate point set D is 2.10m², and the absolute value of the difference between the two is 0.10m² and is not greater than the preset area tolerance, then the candidate areas of insufficient full tamping in the two are considered to be the same.

[0194] If the candidate full-compaction repeated coverage area of ​​candidate full-compaction point set C is 16m², and the candidate full-compaction repeated coverage area of ​​candidate full-compaction point set D is 22m², and the absolute value of the difference between the two is 6m² and is greater than the preset area tolerance, then candidate full-compaction point set C is ranked before candidate full-compaction point set D.

[0195] If the candidate full-compaction repeated coverage area of ​​candidate full-compaction point set C is 16.00m², and the candidate full-compaction repeated coverage area of ​​candidate full-compaction point set D is 16.10m², and the absolute value of the difference between the two is 0.10m² and not greater than the preset area tolerance, then the candidate full-compaction construction path lengths will continue to be compared.

[0196] If the candidate path length for full compaction construction corresponding to candidate point set C is 680m, and the candidate path length for full compaction construction corresponding to candidate point set D is 720m, then candidate point set C is ranked before candidate point set D.

[0197] If the candidate full-compaction candidate point set C and the candidate full-compaction candidate point set D have the same remaining insufficient area for candidate full-compaction, the candidate full-compaction overlapping coverage area, and the candidate full-compaction construction path length, then the order is determined by the generation sequence number, with the candidate full-compaction candidate point set with the smaller generation sequence number ranked first.

[0198] In this embodiment, the final set of full compaction points is not directly adopted from the conventional set of full compaction points, but is determined by evaluating the remaining insufficient area of ​​candidate full compaction points, the overlapping coverage area of ​​candidate full compaction points, and the length of candidate full compaction construction paths from the conventional set of full compaction points and multiple adjusted sets of full compaction points.

[0199] In step S5, the full compaction alignment guidance information includes the final set of full compaction point coordinates, the full compaction construction sequence, and the full compaction alignment prompts.

[0200] The vehicle-mounted positioning system selects the coordinates of the final full compaction point to be constructed from the set of final full compaction point coordinates according to the full compaction construction sequence, and uses the coordinates of the final full compaction point to be constructed as the target full compaction point coordinates.

[0201] The vehicle-mounted positioning system generates the full compaction alignment prompt based on the target full compaction point coordinates and the current tamping hammer center projection coordinates, and guides the hydraulic tamper to move to the corresponding final full compaction point for full compaction construction based on the full compaction alignment prompt.

[0202] Specifically: After the final set of compaction points is determined, the system reads the coordinates of each final compaction point in the final set of compaction points, and generates the compaction construction sequence according to the compaction line direction, the perpendicular compaction line direction, and the on-site construction access conditions.

[0203] For example, in a rectangular airport runway construction area, the full compaction construction sequence is generated in a row-by-row manner, that is, first construct the final full compaction point of the same row in sequence along the direction of the full compaction row, and then proceed to the next row's final full compaction point along the direction perpendicular to the full compaction row.

[0204] During data processing, the vehicle-mounted positioning system selects the coordinates of the final full compaction point to be constructed from the set of final full compaction point coordinates according to the full compaction construction sequence, and uses these coordinates as the target full compaction point coordinates, while simultaneously collecting hydraulic compaction positioning data.

[0205] Specifically: The positioning data of the hydraulic rammer includes the vehicle body positioning coordinates and vehicle body orientation. Before construction, the installation offset from the vehicle body positioning reference point to the center projection position of the rammer is measured. The vehicle-mounted positioning system calculates the current center projection position coordinates of the rammer based on the vehicle body positioning coordinates, vehicle body orientation, and installation offset.

[0206] The vehicle-mounted positioning system calculates the planar distance and direction of movement between the target full-compaction point coordinates and the current hammer center projection position coordinates, and displays the target full-compaction point coordinates, the current hammer center projection position coordinates, the direction of movement, the remaining planar distance, and the hammer drop prompt on the display terminal in the cab.

[0207] For example, if the target full-compaction point coordinates are (100.000, 50.000) and the current hammer center projection coordinates are (99.960, 50.030), then the planar distance is 0.05m. If the preset allowable alignment deviation is 0.05m, the vehicle positioning system generates a permission to drop the hammer. If the planar distance is greater than 0.05m, the vehicle positioning system displays the direction of continued movement and the remaining planar distance.

[0208] It should be noted that the preset allowable alignment deviation can be set according to the control requirements of the construction points of the airport runway hydraulic tamping. For example, when the point deviation is required to be controlled within ±5cm, the preset allowable alignment deviation is 0.05m.

[0209] In this embodiment, the construction personnel move the hydraulic tamper according to the full compaction alignment prompts, and carry out full compaction construction after ensuring that the planar distance between the current tamper center projection coordinates and the target full compaction point coordinates is not greater than the preset alignment allowable deviation. In this way, the final set of full compaction points determined through screening is implemented on-site for alignment construction.

[0210] In this embodiment, the final set of full-compaction points is determined by calculating the remaining insufficient area of ​​candidate full-compaction points, the overlapping coverage area of ​​candidate full-compaction points, and the length of candidate full-compaction construction paths for each set of candidate full-compaction points. This final set of full-compaction points prioritizes reducing the area in the priority full-compaction area set that still does not meet the processing requirements after full-compaction. When the remaining insufficient areas of candidate full-compaction points are close or the same, the overlapping coverage area in the fully processed area set is reduced. At the same time, the final set of full-compaction points is converted into target full-compaction point coordinates, full-compaction construction sequence, and alignment prompts that can be executed by the vehicle positioning system through full-compaction alignment guidance information. This ensures that the selected full-compaction point layout results are implemented in the on-site full-compaction alignment construction.

[0211] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended technical solutions and their equivalents.

Claims

1. An airport runway hydraulic ramper point precision layout and alignment method, characterized in that, Includes the following steps: S1. After completing the first and second rounds of tack compaction on the airport runway, obtain the boundary data of the construction area and the set of tack compaction measured data. The set of tack compaction measured data includes the tack compaction measured coordinates, tack compaction settlement and post-tack compaction elevation corresponding to the first and second rounds of tack compaction, respectively. S2. Generate a set of coverage calculation units based on the boundary data of the construction area, and calculate the point compaction processing results corresponding to the set of coverage calculation units based on the set of point compaction measured data. The point compaction processing results are used to represent the degree of processing and the degree of consistency between adjacent processing after the first and second rounds of point compaction. S3. Determine the set of priority areas for full compaction and the set of areas that have been fully treated based on the results of the spot compaction. The set of priority areas for full compaction includes areas that were not adequately treated and areas that were unevenly treated after the first and second rounds of spot compaction. S4. Using the set of areas with priority for full compaction as the priority processing object for full compaction, multiple sets of candidate points for full compaction are generated under the premise of meeting the requirements for full compaction overlap. The multiple sets of candidate points for full compaction include the set of regular full compaction points and the set of adjusted full compaction points obtained by translating the set of regular full compaction points. S5. Calculate the remaining insufficient area of ​​each candidate full-compaction point set based on the set of priority full-compaction areas, and calculate the overlapping coverage area of ​​each candidate full-compaction point set based on the set of fully processed areas. Sort multiple candidate full-compaction point sets in ascending order of remaining insufficient area, and sort them in ascending order of overlapping coverage area when the remaining insufficient areas are the same. Determine the first-ranked candidate full-compaction point set as the final full-compaction point set. Generate full-compaction alignment guidance information based on the final full-compaction point set, so that the vehicle positioning system can guide the hydraulic tamper to perform full-compaction alignment construction based on the full-compaction alignment guidance information.

2. The method for precise layout and alignment of hydraulic tamping points on airport runways according to claim 1, characterized in that, In step S1, the set of point compaction measurement data includes multiple point compaction data records; Each of the aforementioned point compaction data records includes the number of point compaction passes, point compaction number, measured coordinates of point compaction, elevation before point compaction, elevation after point compaction, and point compaction settlement. The number of tamping passes is used to distinguish between the first and second tamping passes. The measured coordinates of the tamping passes are obtained by converting the hydraulic tamping positioning data collected by the vehicle positioning system. The tamping settlement is obtained by subtracting the tamping settlement from the tamping settlement elevation in the same tamping data record.

3. The method for precise arrangement and alignment of the ramming point of the airport runway hydraulic rammer according to claim 2, characterized in that, In step S2, the set of coverage computing units is generated in the following way: The planar range defined by the boundary data of the construction area is divided into multiple coverage calculation units according to the preset unit side length; Each of the coverage calculation units includes a unit boundary, a unit center point, and a unit area; Coverage calculation units located within the plane range defined by the boundary data of the construction area are included in the coverage calculation unit set, and the area of ​​the coverage calculation units intersecting with the plane range is determined according to the overlapping area.

4. The method for precise arrangement and alignment of the ramming point of the airport runway hydraulic rammer according to claim 3, characterized in that, In step S2, the point compaction processing result includes the point compaction processing degree value and the consistency value between adjacent processing. The point compaction treatment degree value is calculated based on the positional relationship between the coverage calculation unit and the measured coordinates of the point compaction corresponding to the first and second rounds of point compaction, and in combination with the corresponding point compaction settlement and the post-point compaction elevation. The adjacent processing consistency value is calculated based on the difference in the point compaction processing value between adjacent coverage calculation units.

5. The method for precise layout and alignment of hydraulic tamping points on airport runways according to claim 4, characterized in that, In step S3, the set of priority compaction areas and the set of fully processed areas are determined in the following way: The coverage calculation unit whose point compaction degree value is lower than the preset point compaction degree requirement is identified as the insufficient processing calculation unit. The coverage calculation unit whose adjacent processing consistency value is lower than the preset adjacent processing consistency requirement is identified as the processing unevenness calculation unit. The insufficient processing calculation unit and the uneven processing calculation unit are merged into a full compaction priority calculation unit set, and adjacent calculation units in the full compaction priority calculation unit set are merged into a full compaction priority region set. The coverage calculation units that are not included in the set of full-compaction priority calculation units are merged into the set of fully processed regions.

6. The method for precise layout and alignment of hydraulic tamping points on airport runways according to claim 5, characterized in that, In step S4, the set of conventional full-compaction points is generated in the following way: The scope of the full compaction layout is determined based on the boundary data of the construction area. The spacing between adjacent full compaction points is determined based on the hammer bottom diameter and the full compaction overlap requirements. Starting from the preset full compaction starting point, full compaction points are arranged within the full compaction layout range according to the spacing between adjacent full compaction points, and the full compaction points form the conventional full compaction point set.

7. The method for precise arrangement and alignment of the ramming point of the airport runway hydraulic rammer according to claim 6, characterized in that, In step S4, the set of adjusted full-compaction points is generated in the following way: A preset translation distance set is generated based on the distance between adjacent full-compaction points and the preset translation step size; The conventional full-compaction point set is translated as a whole according to the preset translation distance set to obtain multiple adjusted full-compaction point sets; Each set of adjusted full-compaction points maintains the spacing between adjacent full-compaction points and meets the full-compaction overlap requirements; The set of conventional full compaction points and the multiple sets of adjusted full compaction points together constitute multiple sets of candidate full compaction points.

8. The method for precise layout and alignment of hydraulic tamping points on airport runways according to claim 7, characterized in that, In step S5, the remaining insufficient area of ​​the candidate full compaction is calculated in the following way: For each set of candidate full-compaction points, the candidate full-compaction coverage area is determined based on the coordinates of each full-compaction point in the set and the diameter of the hammer bottom. The number of full compaction coverage times is determined based on the overlap between each coverage calculation unit and the candidate full compaction coverage area; Calculate the candidate post-compaction degree value based on the point compaction treatment degree value and the number of full compaction coverage times; The remaining insufficient area of ​​the candidate full compaction is obtained by summing the area of ​​the covering calculation unit in the set of priority full compaction areas where the candidate full compaction post-processing degree value is lower than the preset full compaction post-processing degree requirement.

9. The method for precise arrangement and alignment of the ramming point of the airport runway hydraulic rammer according to claim 8, characterized in that, In step S5, the candidate full-compaction repeated coverage area and the final set of full-compaction points are determined in the following way: The area overlapping with the candidate full compaction coverage area in the set of fully processed areas is determined as the candidate full compaction repeated coverage area corresponding to the set of candidate full compaction points. The multiple sets of candidate points for full compaction are sorted in ascending order of the remaining insufficient area of ​​the candidate full compaction points. When two or more sets of candidate full-compaction points have the same remaining insufficient area, they are sorted a second time according to the candidate full-compaction overlapping coverage area from small to large. The first-ranked candidate set of fully compacted points is determined as the final set of fully compacted points.

10. The method for precise arrangement and alignment of the ramming point of the airport runway hydraulic rammer according to claim 9, characterized in that, In step S5, the full compaction alignment guidance information includes the final set of full compaction point coordinates, the full compaction construction sequence, and the full compaction alignment prompts. The vehicle-mounted positioning system selects the coordinates of the final full compaction point to be constructed from the set of final full compaction point coordinates according to the full compaction construction sequence, and uses the coordinates of the final full compaction point to be constructed as the target full compaction point coordinates. The vehicle-mounted positioning system generates the full compaction alignment prompt based on the target full compaction point coordinates and the current tamping hammer center projection coordinates, and guides the hydraulic tamper to move to the corresponding final full compaction point for full compaction construction based on the full compaction alignment prompt.

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