Earth-rock engineering molding construction method based on three-dimensional laser scanning

Abstract

According to the earth-rock engineering model-based construction method based on three-dimensional laser scanning, airport earth-rock engineering is scanned based on the three-dimensional laser scanning technology, three-dimensional data of earth-rock is obtained, it is guaranteed that the obtained three-dimensional data can accurately reflect measurement data of the airport earth-rock engineering, and through the three-dimensional data based on the earth-rock engineering, the measurement data of the airport earth-rock engineering can be accurately reflected. The method comprises the following steps: establishing an earth-rock model by combining a BIM model, performing construction simulation in the earth-rock model based on construction requirements, determining target construction data according to a simulation result, ensuring the accuracy of the obtained target construction data, ensuring the construction progress and the construction quality, and finally constructing the airport earth-rock engineering according to the target construction data. And the target construction data is adjusted in real time based on the simulation construction result and the actual construction result of the earth-rock model, so that the real-time control and adjustment of the construction progress and quality are realized, and the construction progress and the construction quality are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of three-dimensional modeling, and in particular to a three-dimensional laser scanning-based earthwork engineering modeling construction method. Background Art

[0002] The construction of earthwork engineering massage at the airport mainly includes earth excavation, drainage, foundation engineering, backfilling, road construction, pipeline laying and environmental restoration. Earthwork engineering construction is a comprehensive engineering process involving many aspects. First of all, earth excavation is the first step of the project, which involves removing soil and mud for subsequent construction. The drainage system is very important during construction, and it is necessary to ensure that there is no water accumulation in the site, so a drainage system is required. Foundation engineering includes the foundation for building a house or building. Backfilling is the backfilling of soil to cover the foundation after the foundation engineering is completed, so that the site is restored to a state suitable for use. Road construction and pipeline laying are also important links in earthwork engineering, including the laying of various pipelines such as wires, water pipes, etc. Finally, environmental restoration is carried out after the project is completed to ensure that the site is restored to its pre-construction state.

[0003] Traditional construction methods often rely on the experience and skills of construction workers, which makes it difficult to ensure construction accuracy; traditional construction management methods often rely on manual measurement and calculation, which are easily affected by human and environmental factors, resulting in uncontrollable construction progress and quality. Summary of the invention

[0004] The invention provides a three-dimensional laser scanning-based earthwork engineering formwork construction method to solve the problems raised in the background technology.

[0005] A method for earthwork engineering formwork construction based on three-dimensional laser scanning, comprising: S1: Scan the airport earthwork project based on 3D laser scanning technology to obtain 3D data of the earthwork; S2: Based on the three-dimensional data of earthwork and combined with the BIM model, the earthwork model is established; S3: Based on the construction requirements, a construction simulation is performed in the earthwork model, and target construction data is determined according to the simulation results; S4: constructing the airport earthwork project according to the target construction data, and adjusting the target construction data in real time based on the simulated construction results and actual construction results of the earthwork model.

[0006] Preferably, in S1, the airport earthwork project is scanned based on three-dimensional laser scanning technology to obtain three-dimensional data of the earthwork, including: Based on the construction type of airport earthwork engineering, the airport earthwork engineering is divided into multiple earthwork engineering areas; Based on the construction process of the airport earthwork project, determine the scanning time nodes for multiple earthwork project areas; Based on the three-dimensional laser scanning technology, each earthwork engineering area is scanned according to the scanning time node to obtain the three-dimensional data of the area; Based on the edge connection features between multiple earthwork engineering areas, the three-dimensional data of the areas are fused to obtain the three-dimensional data of the earthwork.

[0007] Preferably, based on the edge connection features between multiple earthwork engineering areas, the three-dimensional data of the areas are fused to obtain the three-dimensional data of the earthwork, including: Based on the edge connection characteristics between multiple earthwork engineering areas, the matching information of regional three-dimensional data between multiple earthwork engineering areas is determined; Based on the matching information, the three-dimensional data of the matched area is registered to obtain the three-dimensional data of the earthwork.

[0008] Preferably, in S2, the earthwork model is established based on the three-dimensional data of earthwork in combination with the BIM model, including: Obtain the BIM model establishment process, including terrain model establishment, design surface model establishment, importing terrain and design surface into the same file, creating grading and creating cut-and-fill cubes; Obtain the local 3D data required for each process in the BIM model establishment process from the 3D data of earthwork; Based on each process in the BIM model establishment process and its corresponding local three-dimensional data, the model is built according to the tool functions of the BIM model to obtain the earthwork model.

[0009] Preferably, in S3, based on the construction requirements, a construction simulation is performed in the earthwork model, and target construction data is determined according to the simulation results, including: Obtain earthwork models at different historical time nodes, and determine historical construction characteristics and historical construction results based on model value differences between earthwork models corresponding to adjacent historical time nodes; Based on the historical construction results, evaluating the historical construction characteristics and determining the construction quality value of the historical construction characteristics; Based on the construction feature database, multiple construction feature sequences that meet the construction requirements are determined, and based on the construction quality values ​​of the historical construction features, each construction feature sequence is predicted and evaluated to obtain the construction effect of each construction feature sequence; Selecting an alternative construction feature sequence whose construction effect is greater than a preset construction effect from all construction feature sequences; Inputting the candidate construction feature sequence into the earthwork model to perform construction simulation, obtaining simulation results, comparing the simulation results with the construction effect, determining the result difference, and selecting the target construction feature sequence with the smallest result difference; The construction data corresponding to the target construction feature is obtained, and based on the result difference, the construction data is adjusted to obtain the target construction data.

[0010] Preferably, after adjusting the construction data based on the result difference to obtain the target construction data, the method further includes: Inputting the target construction data into the earthwork model to obtain a simulation verification result, and determining whether the simulation verification result meets a preset verification requirement; If so, determine the target construction data as the final construction data; Otherwise, the target construction data is adjusted again until the preset verification requirements are met.

[0011] Preferably, the construction quality value based on the historical construction characteristics is used to predict and evaluate each construction feature sequence to obtain the construction effect of each construction feature sequence, including: Based on the construction quality values ​​of historical construction characteristics, determining a construction quality value sequence corresponding to the construction characteristic sequence; The average quality value, the minimum quality value and the maximum quality value of the construction quality value sequence are obtained, and the effect is evaluated based on the average quality value, the minimum quality value and the maximum quality value to obtain the construction effect.

[0012] Preferably, in S4, constructing the airport earthwork project according to the target construction data includes: Determining the construction process of the airport earthwork project based on the target construction data; The airport earthwork project shall be constructed according to the described construction process.

[0013] Preferably, in S4, the target construction data is adjusted in real time based on the simulated construction results and the actual construction results of the earthwork model, including: Acquire the actual construction effect of the airport earthwork project according to the target construction data, divide and process the actual construction effect based on the time characteristics and the construction object, obtain the effect distribution structure diagram of the actual construction effect, and obtain the effect correlation relationship from the effect distribution structure diagram; Processing the simulated construction effect according to the effect distribution structure diagram of the actual construction effect to obtain a simulated effect structure diagram, and obtaining effect structures different from the effect distribution structure diagram and the simulated effect structure diagram; Based on the effect correlation relationship, the actual effect correlation value and the simulated effect correlation value corresponding to the effect structure are obtained, and based on the correlation value difference between the actual effect correlation value and the simulated effect correlation value, the adjustment range of the target construction data is determined, and the target construction data is adjusted in real time according to the adjustment range.

[0014] Preferably, determining the adjustment range of the target construction data based on the correlation value difference between the actual effect correlation value and the simulated effect correlation value includes: Based on the effect attribute, the association value difference is divided, and the association value difference sequence corresponding to the effect attribute is obtained in time sequence, and the difference value sequence between adjacent difference values ​​in the association value difference sequence is obtained; Determine the deviation target of the actual construction result based on the effect attribute distribution of the correlation value difference sequence, and determine the deviation trend of the actual construction result based on the difference sequence; The adjustment data type of the target construction data is determined based on the deviation target, and the adjustment range of the adjustment data type is determined based on the deviation trend.

[0015] Compared with the prior art, the present invention has achieved the following beneficial effects: Based on the 3D laser scanning technology, the airport earthwork project is scanned to obtain the 3D data of the earthwork, ensuring that the obtained 3D data can accurately reflect the measurement data of the airport earthwork project. Based on the 3D data of the earthwork, combined with the BIM model, an earthwork model is established. Based on the construction needs, construction simulation is carried out in the earthwork model, and the target construction data is determined according to the simulation results to ensure the accuracy of the target construction data, the construction progress and the quality. Finally, the airport earthwork project is constructed according to the target construction data, and the target construction data is adjusted in real time based on the simulated construction results and the actual construction results of the earthwork model to achieve real-time control and adjustment of the construction progress and quality, and ensure the construction progress and quality. This scheme is based on the model construction scheme of 3D laser scanning technology, which can accurately obtain the 3D data of the earthwork, and perform accurate construction simulation through the BIM model to ensure the accuracy and efficiency of the construction.

[0016] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures specifically pointed out in this application document.

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a flow chart of a method for mold construction of earthwork engineering based on three-dimensional laser scanning in an embodiment of the present invention; Figure 2 A flow chart of obtaining three-dimensional data of earthwork in an embodiment of the present invention; Figure 3 This is a flow chart of real-time adjustment of target construction data in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0020] Example 1 The embodiment of the present invention provides a method for earthwork engineering mold construction based on three-dimensional laser scanning, such as Figure 1 As shown, including: S1: Scan the airport earthwork project based on 3D laser scanning technology to obtain 3D data of the earthwork; S2: Based on the three-dimensional data of earthwork and combined with the BIM model, the earthwork model is established; S3: Based on the construction requirements, a construction simulation is performed in the earthwork model, and target construction data is determined according to the simulation results; S4: constructing the airport earthwork project according to the target construction data, and adjusting the target construction data in real time based on the simulated construction results and actual construction results of the earthwork model.

[0021] In this embodiment, the BIM model is a building information model, which is used to describe computer-aided designs that are mainly three-dimensional graphics, object-oriented, and related to architecture.

[0022] In this embodiment, the construction requirements are set according to actual conditions.

[0023] In this embodiment, the target construction data includes specific types and values ​​such as excavation volume, filling volume, road surface layer, and slope engineering.

[0024] The beneficial effects of the above design scheme are: by scanning the airport earthwork project based on 3D laser scanning technology, the 3D data of the earthwork is obtained, and it is ensured that the obtained 3D data can accurately reflect the measurement data of the airport earthwork project; by combining the 3D data of the earthwork with the BIM model, an earthwork model is established; based on the construction needs, construction simulation is carried out in the earthwork model; the target construction data is determined according to the simulation results, and the accuracy of the target construction data is ensured, and the construction progress and construction quality are ensured; finally, the airport earthwork project is constructed according to the target construction data, and the target construction data is adjusted in real time based on the simulated construction results and the actual construction results of the earthwork model, so as to realize real-time control and adjustment of the construction progress and quality, and ensure the construction progress and construction quality. This scheme is based on the model construction scheme of 3D laser scanning technology, which can accurately obtain the 3D data of the earthwork, and perform accurate construction simulation through the BIM model to ensure the accuracy and efficiency of the construction.

[0025] Example 2 Based on Example 1, the present invention provides a method for earthwork engineering mold construction based on three-dimensional laser scanning, such as Figure 2 As shown, in S1, the earthwork engineering of the airport is scanned based on the three-dimensional laser scanning technology to obtain three-dimensional data of the earthwork, including: Based on the construction type of airport earthwork engineering, the airport earthwork engineering is divided into multiple earthwork engineering areas; Based on the construction process of the airport earthwork project, determine the scanning time nodes for multiple earthwork project areas; Based on the three-dimensional laser scanning technology, each earthwork engineering area is scanned according to the scanning time node to obtain the three-dimensional data of the area; Based on the edge connection features between multiple earthwork engineering areas, the three-dimensional data of the areas are fused to obtain the three-dimensional data of the earthwork.

[0026] The beneficial effects of the above design scheme are: based on the construction type of the airport earthwork project, the airport earthwork project is divided to obtain multiple earthwork project areas; based on the construction process of the airport earthwork project, the scanning time nodes of the multiple earthwork project areas are determined; based on the three-dimensional laser scanning technology, each earthwork project area is scanned according to the scanning time nodes to obtain regional three-dimensional data; based on the edge connection characteristics between the multiple earthwork project areas, the regional three-dimensional data are fused to obtain three-dimensional data of earthwork, ensuring that the obtained three-dimensional data can accurately reflect the measurement data of the airport earthwork project.

[0027] Example 3 Based on Example 2, the embodiment of the present invention provides a method for earthwork engineering mold construction based on three-dimensional laser scanning, which fuses the three-dimensional data of the regions based on the edge connection features between multiple earthwork engineering regions to obtain three-dimensional data of earthwork, including: Based on the edge connection characteristics between multiple earthwork engineering areas, the matching information of regional three-dimensional data between multiple earthwork engineering areas is determined; Based on the matching information, the three-dimensional data of the matched area is registered to obtain the three-dimensional data of the earthwork.

[0028] The beneficial effect of the above design scheme is: by determining the matching information of the regional three-dimensional data between multiple earthwork engineering areas based on the edge connection characteristics between multiple earthwork engineering areas, and based on the matching information, aligning the matching regional three-dimensional data to obtain the three-dimensional data of the earthwork, thereby ensuring the integrity and accuracy of the obtained three-dimensional data.

[0029] Example 4 Based on Example 2, the embodiment of the present invention provides a method for earthwork engineering modeling construction based on three-dimensional laser scanning, characterized in that, in S2, based on the three-dimensional data of earthwork, combined with the BIM model, an earthwork model is established, including: Obtain the BIM model establishment process, including terrain model establishment, design surface model establishment, importing terrain and design surface into the same file, creating grading and creating cut-and-fill cubes; Obtain the local 3D data required for each process in the BIM model establishment process from the 3D data of earthwork; Based on each process in the BIM model establishment process and its corresponding local three-dimensional data, the model is built according to the tool functions of the BIM model to obtain the earthwork model.

[0030] The beneficial effects of the above design scheme are: by obtaining the BIM model establishment process, including terrain model establishment, design surface model establishment, importing terrain and design surface into the same file, creating grading and creating cut and fill volumes, the local three-dimensional data required for each process in the BIM model establishment process is obtained from the three-dimensional data of earth and stone. Based on each process in the BIM model establishment process and its corresponding local three-dimensional data, the model is built according to the tool function of the BIM model to obtain the earth and stone model, providing a model basis for the simulation of earth and stone engineering.

[0031] Example 5 Based on Example 1, the embodiment of the present invention provides a method for earthwork engineering model construction based on three-dimensional laser scanning. In S3, based on the construction requirements, a construction simulation is performed in the earthwork model, and target construction data is determined according to the simulation results, including: Obtain earthwork models at different historical time nodes, and determine historical construction characteristics and historical construction results based on model value differences between earthwork models corresponding to adjacent historical time nodes; Based on the historical construction results, evaluating the historical construction characteristics and determining the construction quality value of the historical construction characteristics; Based on the construction feature database, multiple construction feature sequences that meet the construction requirements are determined, and based on the construction quality values ​​of the historical construction features, each construction feature sequence is predicted and evaluated to obtain the construction effect of each construction feature sequence; Selecting an alternative construction feature sequence whose construction effect is greater than a preset construction effect from all construction feature sequences; Inputting the candidate construction feature sequence into the earthwork model to perform construction simulation, obtaining simulation results, comparing the simulation results with the construction effect, determining the result difference, and selecting the target construction feature sequence with the smallest result difference; The construction data corresponding to the target construction feature is obtained, and based on the result difference, the construction data is adjusted to obtain the target construction data.

[0032] The beneficial effects of the above design scheme are: by obtaining earthwork models at different historical time nodes, based on the model value differences between earthwork models corresponding to adjacent historical time nodes, the historical construction characteristics and historical construction results are determined; based on the historical construction results, the historical construction characteristics are evaluated to determine the construction quality values ​​of the historical construction characteristics; based on the construction characteristic database, multiple construction feature sequences that meet the construction requirements are determined; based on the construction quality values ​​of the historical construction characteristics, each construction feature sequence is predicted and evaluated to obtain the construction effect of each construction feature sequence; from all construction feature sequences, an alternative construction feature sequence whose construction effect is greater than a preset construction effect is selected; the alternative construction feature sequence is input into the earthwork model for construction simulation to obtain a simulation result; the simulation result is compared with the construction effect to determine the result difference; the target construction feature sequence with the smallest result difference is selected; the construction data corresponding to the target construction feature is obtained; and based on the result difference, the construction data is adjusted to obtain the target construction data, thereby ensuring the accuracy of the target construction data and ensuring the construction progress and quality.

[0033] Example 6 Based on Example 5, the embodiment of the present invention provides a method for earthwork engineering construction based on three-dimensional laser scanning. Based on the result difference, the construction data is adjusted to obtain the target construction data, and the method further includes: Inputting the target construction data into the earthwork model to obtain a simulation verification result, and determining whether the simulation verification result meets a preset verification requirement; If so, determine the target construction data as the final construction data; Otherwise, the target construction data is adjusted again until the preset verification requirements are met.

[0034] In this embodiment, the verification requirements are set according to actual conditions, for example, the construction effect meets the preset requirements.

[0035] The beneficial effect of the above design scheme is: by inputting the target construction data into the earthwork model to obtain the simulation verification result, and judging whether the simulation verification result meets the preset verification requirements, if so, the target construction data is determined as the final construction data, otherwise, the target construction data is adjusted for a second time until it meets the preset verification requirements, thereby ensuring the accuracy of the obtained target construction data and providing a data basis for ensuring construction quality.

[0036] Example 7 Based on Example 5, the embodiment of the present invention provides a method for earthwork engineering construction based on three-dimensional laser scanning, wherein the construction quality value based on historical construction characteristics predicts and evaluates each construction feature sequence to obtain the construction effect of each construction feature sequence, including: Based on the construction quality values ​​of historical construction characteristics, determining a construction quality value sequence corresponding to the construction characteristic sequence; The average quality value, the minimum quality value and the maximum quality value of the construction quality value sequence are obtained, and the effect is evaluated based on the average quality value, the minimum quality value and the maximum quality value to obtain the construction effect.

[0037] The beneficial effects of the above design scheme are: by determining the construction quality value sequence corresponding to the construction feature sequence based on the construction quality value of historical construction characteristics, the average quality value, the minimum quality value and the maximum quality value of the construction quality value sequence are obtained, and the effect is evaluated based on the average quality value, the minimum quality value and the maximum quality value to obtain the construction effect, thereby achieving the accuracy of the construction effect evaluation and ensuring the accuracy of the construction effect.

[0038] Example 8 Based on Example 1, the embodiment of the present invention provides a method for constructing earthwork engineering according to a mold based on three-dimensional laser scanning. In S4, the earthwork engineering of the airport is constructed according to the target construction data, including: Determining the construction process of the airport earthwork project based on the target construction data; The airport earthwork project shall be constructed according to the described construction process.

[0039] The beneficial effect of the above design scheme is: by determining the construction process of the airport earthwork project based on the target construction data, the airport earthwork project is constructed according to the construction process, thereby ensuring the accuracy of the construction process.

[0040] Example 9 Based on Example 1, the present invention provides a method for earthwork engineering mold construction based on three-dimensional laser scanning, such as Figure 3 As shown, in S4, the target construction data is adjusted in real time based on the simulated construction results and actual construction results of the earthwork model, including: Acquire the actual construction effect of the airport earthwork project according to the target construction data, divide and process the actual construction effect based on the time characteristics and the construction object, obtain the effect distribution structure diagram of the actual construction effect, and obtain the effect correlation relationship from the effect distribution structure diagram; Processing the simulated construction effect according to the effect distribution structure diagram of the actual construction effect to obtain a simulated effect structure diagram, and obtaining effect structures different from the effect distribution structure diagram and the simulated effect structure diagram; Based on the effect correlation relationship, the actual effect correlation value and the simulated effect correlation value corresponding to the effect structure are obtained, and based on the correlation value difference between the actual effect correlation value and the simulated effect correlation value, the adjustment range of the target construction data is determined, and the target construction data is adjusted in real time according to the adjustment range.

[0041] The beneficial effects of the above design scheme are: by obtaining the actual construction effect of the airport earthwork project constructed according to the target construction data, and dividing and processing the actual construction effect based on the time characteristics and the construction object, an effect distribution structure diagram of the actual construction effect is obtained, and the effect correlation relationship is obtained from the effect distribution structure diagram, and the simulated construction effect is processed according to the effect distribution structure diagram of the actual construction effect to obtain a simulated effect structure diagram, and different effect structures in the effect distribution structure diagram and the simulated effect structure diagram are obtained; based on the effect correlation relationship, the actual effect correlation value and the simulated effect correlation value corresponding to the effect structure are obtained, and based on the difference in the correlation values ​​of the actual effect correlation value and the simulated effect correlation value, the adjustment range of the target construction data is determined, and the target construction data is adjusted in real time according to the adjustment range, so as to realize real-time control and adjustment of construction progress and quality, and ensure the construction progress and construction quality.

[0042] Embodiment 10: Based on Example 9, the embodiment of the present invention provides a method for earthwork engineering construction based on three-dimensional laser scanning, which determines the adjustment range of target construction data based on the difference in association values ​​between the actual effect association value and the simulation effect association value, including: Based on the effect attribute, the association value difference is divided, and the association value difference sequence corresponding to the effect attribute is obtained in time sequence, and the difference value sequence between adjacent difference values ​​in the association value difference sequence is obtained; Determine the deviation target of the actual construction result based on the effect attribute distribution of the correlation value difference sequence, and determine the deviation trend of the actual construction result based on the difference sequence; The adjustment data type of the target construction data is determined based on the deviation target, and the adjustment range of the adjustment data type is determined based on the deviation trend.

[0043] The beneficial effects of the above design scheme are: determining the deviation target of the actual construction result based on the effect attribute distribution of the associated value difference sequence, and determining the deviation trend of the actual construction result based on the difference sequence; determining the adjustment data type of the target construction data based on the deviation target, and determining the adjustment range of the adjustment data type based on the deviation trend, thereby ensuring the real-time adjustment accuracy of the construction data of Mubuao, thereby ensuring the construction progress and construction quality.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention belong to the scope of this application document and its equivalent technology, the present invention is also intended to include these changes and variations.

Claims

1. A method for earthwork construction based on three-dimensional laser scanning, characterized in that: include: S1: Scan the airport earthwork project based on 3D laser scanning technology to obtain 3D data of the earthwork; S2: Based on the three-dimensional data of earthwork and combined with the BIM model, the earthwork model is established; S3: Based on the construction requirements, a construction simulation is performed in the earthwork model, and target construction data is determined according to the simulation results; S4: constructing the airport earthwork project according to the target construction data, and adjusting the target construction data in real time based on the simulated construction results and actual construction results of the earthwork model.

2. The earthwork construction method based on three-dimensional laser scanning according to claim 1 is characterized in that: In S1, the airport earthwork project is scanned based on the three-dimensional laser scanning technology to obtain three-dimensional data of the earthwork, including: Based on the construction type of airport earthwork engineering, the airport earthwork engineering is divided into multiple earthwork engineering areas; Based on the construction process of the airport earthwork project, determine the scanning time nodes for multiple earthwork project areas; Based on the three-dimensional laser scanning technology, each earthwork engineering area is scanned according to the scanning time node to obtain the three-dimensional data of the area; Based on the edge connection features between multiple earthwork engineering areas, the three-dimensional data of the areas are fused to obtain the three-dimensional data of the earthwork.

3. The earthwork engineering formwork construction method based on three-dimensional laser scanning according to claim 2 is characterized in that: Based on the edge connection features between multiple earthwork engineering areas, the three-dimensional data of the areas are fused to obtain the three-dimensional data of earthwork, including: Based on the edge connection characteristics between multiple earthwork engineering areas, the matching information of regional three-dimensional data between multiple earthwork engineering areas is determined; Based on the matching information, the three-dimensional data of the matched area is registered to obtain the three-dimensional data of the earthwork.

4. The earthwork construction method based on three-dimensional laser scanning according to claim 2 is characterized in that: In S2, based on the three-dimensional data of earthwork and combined with the BIM model, an earthwork model is established, including: Obtain the BIM model establishment process, including terrain model establishment, design surface model establishment, importing terrain and design surface into the same file, creating grading and creating cut-and-fill cubes; Obtain the local 3D data required for each process in the BIM model establishment process from the 3D data of earthwork; Based on each process in the BIM model establishment process and its corresponding local three-dimensional data, the model is built according to the tool functions of the BIM model to obtain the earthwork model.

5. The earthwork construction method based on three-dimensional laser scanning according to claim 1 is characterized in that: In S3, based on the construction requirements, a construction simulation is performed in the earthwork model, and target construction data is determined according to the simulation results, including: Obtain earthwork models at different historical time nodes, and determine historical construction characteristics and historical construction results based on model value differences between earthwork models corresponding to adjacent historical time nodes; Based on the historical construction results, evaluating the historical construction characteristics and determining the construction quality value of the historical construction characteristics; Based on the construction feature database, multiple construction feature sequences that meet the construction requirements are determined, and based on the construction quality values ​​of the historical construction features, each construction feature sequence is predicted and evaluated to obtain the construction effect of each construction feature sequence; Selecting an alternative construction feature sequence whose construction effect is greater than a preset construction effect from all construction feature sequences; Inputting the candidate construction feature sequence into the earthwork model to perform construction simulation, obtaining simulation results, comparing the simulation results with the construction effect, determining the result difference, and selecting the target construction feature sequence with the smallest result difference; The construction data corresponding to the target construction feature is obtained, and based on the result difference, the construction data is adjusted to obtain the target construction data.

6. The earthwork construction method based on three-dimensional laser scanning according to claim 5 is characterized in that: Based on the result difference, the construction data is adjusted to obtain the target construction data, and the following is also included: Inputting the target construction data into the earthwork model to obtain a simulation verification result, and determining whether the simulation verification result meets a preset verification requirement; If so, determine the target construction data as the final construction data; Otherwise, the target construction data is adjusted again until the preset verification requirements are met.

7. The earthwork construction method based on three-dimensional laser scanning according to claim 5 is characterized in that: The construction quality value based on the historical construction characteristics is used to predict and evaluate each construction feature sequence to obtain the construction effect of each construction feature sequence, including: Based on the construction quality values ​​of historical construction characteristics, determining a construction quality value sequence corresponding to the construction characteristic sequence; The average quality value, the minimum quality value and the maximum quality value of the construction quality value sequence are obtained, and the effect is evaluated based on the average quality value, the minimum quality value and the maximum quality value to obtain the construction effect.

8. The earthwork construction method based on three-dimensional laser scanning according to claim 1 is characterized in that: In S4, the earthwork project of the airport is constructed according to the target construction data, including: Determining the construction process of the airport earthwork project based on the target construction data; The airport earthwork project shall be constructed according to the described construction process.

9. The earthwork construction method based on three-dimensional laser scanning according to claim 1 is characterized in that: In S4, the target construction data is adjusted in real time based on the simulated construction results and the actual construction results of the earthwork model, including: Acquire the actual construction effect of the airport earthwork project according to the target construction data, divide and process the actual construction effect based on the time characteristics and the construction object, obtain the effect distribution structure diagram of the actual construction effect, and obtain the effect correlation relationship from the effect distribution structure diagram; Processing the simulated construction effect according to the effect distribution structure diagram of the actual construction effect to obtain a simulated effect structure diagram, and obtaining effect structures different from the effect distribution structure diagram and the simulated effect structure diagram; Based on the effect correlation relationship, the actual effect correlation value and the simulated effect correlation value corresponding to the effect structure are obtained, and based on the correlation value difference between the actual effect correlation value and the simulated effect correlation value, the adjustment range of the target construction data is determined, and the target construction data is adjusted in real time according to the adjustment range.

10. The earthwork construction method based on three-dimensional laser scanning according to claim 9 is characterized in that: Based on the difference between the actual effect correlation value and the simulated effect correlation value, determine the adjustment range of the target construction data, including: Based on the effect attribute, the association value difference is divided, and the association value difference sequence corresponding to the effect attribute is obtained in time sequence, and the difference value sequence between adjacent difference values ​​in the association value difference sequence is obtained; Determine the deviation target of the actual construction result based on the effect attribute distribution of the correlation value difference sequence, and determine the deviation trend of the actual construction result based on the difference sequence; The adjustment data type of the target construction data is determined based on the deviation target, and the adjustment range of the adjustment data type is determined based on the deviation trend.

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