A method and system for earthwork analysis based on integrated geophysical exploration

Abstract

The application relates to the technical field of geotechnical engineering geological exploration, in particular to a soil and stone quantity analysis method and system based on comprehensive geophysical exploration, which obtains basic terrain data, adopts a geophysical exploration method to obtain stratum elevation data of an airport to be analyzed, designs the terrain of the airport to be analyzed, and obtains excavation and filling elevation data of the airport to be analyzed; the basic terrain data, the stratum elevation data obtained by the geophysical exploration and the excavation and filling elevation data after the terrain design are imported into an ArcGIS platform, and each generates an irregular triangle network (TIN) model; a digital elevation model (DEM) is constructed according to the irregular triangle network (TIN); the soil and stone quantity is calculated in combination with a shrinkage expansion coefficient; and the digital elevation model (DEM) and the soil and stone quantity calculation result are dynamically adjusted according to the actual situation in the construction process. The stratum information and the excavation and filling coefficient are comprehensively considered, the soil and stone calculation result is more scientific and reasonable, the situation before and after the soil and stone engineering construction can be three-dimensionally displayed and dynamically adjusted, the visual effect is stronger, and the calculation is flexible.

Description

Technical Field

[0001] This application relates to the field of geotechnical engineering geological exploration technology, and in particular to a method and system for earthwork analysis based on integrated geophysical exploration. Background Technology

[0002] Mountainous airports often have complex terrain, requiring the clearing of obstacles, particularly along takeoff and landing routes, to ensure adequate airspace for aircraft. Earthwork is crucial for mountainous airports, potentially accounting for over 60% of the total construction cost. Furthermore, the different cut-fill ratios and costs of earthwork and rock excavation significantly impact earthwork calculations and cost control. Therefore, accurate calculation of earthwork volumes for various soil and rock types (overburden, strongly weathered soil, moderately weathered soil) is essential for the construction of mountainous airports.

[0003] However, traditional methods such as the grid method and cross-section method have low calculation accuracy under complex terrain conditions (such as high-fill airports in mountainous areas). The cut-fill ratios for earthwork and rockwork differ, resulting in significant differences in construction costs. Traditional methods fail to fully consider these differences, leading to inaccurate project cost estimates and significantly impacting cost control. Furthermore, the undulating terrain of mountainous airports makes drilling extremely difficult. Without drilling to understand the lithology of the project area, the presence of weathered layers and overburden layers significantly affects the calculation of earthwork quantities. Earthwork volumes change during construction due to compaction and expansion. Traditional calculation methods do not consider shrinkage coefficients, failing to accurately reflect actual project volumes and directly impacting decisions regarding airport site selection and construction in mountainous areas. Summary of the Invention

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] According to a first aspect of the present invention, the present invention claims protection for a method for earthwork analysis based on integrated geophysical exploration, comprising:

[0006] Acquire basic topographic data and use geophysical methods to obtain the stratigraphic elevation data of the airport to be analyzed;

[0007] The terrain design of the airport to be analyzed is carried out to obtain the cut and fill elevation data of the airport to be analyzed;

[0008] Import basic terrain data, geophysical elevation data, and cut-and-fill elevation data after terrain design into the ArcGIS platform, and generate irregular triangular network (TIN) models for each.

[0009] A digital elevation model (DEM) is constructed based on the aforementioned triangular network (TIN).

[0010] Combining the expansion coefficient, the earthwork volume is calculated based on the area of ​​each pixel in the digital elevation model (DEM) and the corresponding elevation change.

[0011] Construction is carried out based on the earthwork volume, and the digital elevation model (DEM) and earthwork volume calculation results are dynamically adjusted according to the actual situation during the construction process.

[0012] Furthermore, the acquisition of basic topographic data, including obtaining the stratigraphic elevation data of the airport to be analyzed using geophysical methods, further includes:

[0013] In a local area of ​​the airport to be analyzed, a detection line was laid out, and seismic exploration and ground-penetrating radar methods were used to obtain layered data of the weathered layer and the overburden layer;

[0014] The resistivity distribution of the weathered layer and the overburden layer is obtained, and combined with the on-site geological conditions of the airport to be analyzed, the soil composition, resistivity and thickness of the overburden layer and the weathered layer of the airport to be analyzed are obtained.

[0015] The first local terrain elevation point is generated by combining the elevation of the measuring points of the geophysical survey line and the terrain data measured on site.

[0016] Furthermore, the step of performing terrain design on the airport to be analyzed and obtaining the cut and fill elevation data of the airport to be analyzed also includes:

[0017] Based on the geophysical exploration results, the overburden depth and strong weathering boundary are determined by spatial interpolation. The thickness of the overburden and the strong weathering boundary in the area of ​​the airport to be analyzed are determined by spatial interpolation. The second elevation point of the overburden and the third elevation point of the strong weathering boundary are then constructed.

[0018] The elevation points for excavation are determined through terrain design.

[0019] Furthermore, the step of importing basic topographic data, geophysical elevation data, and cut-and-fill elevation data after terrain design into the ArcGIS platform, and generating irregular triangular network (TIN) models for each, also includes:

[0020] The original terrain TIN model is constructed using the first local terrain elevation point, the overburden boundary TIN model is constructed using the second elevation point, the weathering boundary TIN model is constructed using the third elevation point, and the design elevation TIN model is determined using the terrain design excavation elevation.

[0021] Furthermore, the construction of the digital elevation model (DEM) based on the irregular triangular network (TIN) also includes:

[0022] The original terrain TIN model is converted into the original terrain DEM model, the overburden boundary TIN model is converted into the overburden boundary DEM model, the weathering boundary TIN model is converted into the weathering boundary DEM model, and the design elevation TIN model is converted into the design elevation DEM model.

[0023] Furthermore, the calculation of earthwork volume based on the area of ​​each pixel and the corresponding elevation change in the digital elevation model (DEM), incorporating the expansion coefficient, also includes:

[0024] The earthwork volume is calculated based on the following formula:

[0025] V = [cell(area)] × ΔZ;

[0026] In the formula: V is the calculated earthwork volume in meters. 3 ; cell(area) is the size m of a specific cell in the DEM data to be calculated. 2 ΔZ represents the elevation change (in meters) of the calculated pixels before and after the proposed design.

[0027] Furthermore, the step of conducting construction based on the earthwork volume and dynamically adjusting the digital elevation model (DEM) and earthwork volume calculation results according to the actual situation during construction also includes:

[0028] Based on the original terrain DEM model and the aforementioned overburden boundary DEM model, the overburden cut volume is calculated using ArcGIS cut-fill analysis.

[0029] Based on the overburden boundary DEM model and the weathering boundary DEM model, the excavation volume of the strongly weathered rock layer is calculated using ArcGIS cut-fill analysis.

[0030] Based on the weathering boundary DEM model and the design elevation DEM model, the excavation volume of the moderately weathered rock layer is calculated using ArcGIS cut-fill analysis.

[0031] Based on the excavation volume of the overburden layer, the excavation volume of the strongly weathered rock layer, and the excavation volume of the moderately weathered rock layer, combined with the expansion coefficient of different rock layers, the waste and filling volumes of the airport to be analyzed are obtained.

[0032] According to a second aspect of the present invention, the present invention claims protection for an earthwork analysis system based on integrated geophysical exploration, comprising:

[0033] One or more processors;

[0034] A memory that stores one or more programs, which, when executed by one or more processors, enable the one or more processors to implement the earthwork analysis method based on integrated geophysical exploration.

[0035] This application relates to the field of geotechnical engineering geological exploration technology, and in particular to a method and system for earthwork analysis based on integrated geophysical exploration. The method involves acquiring basic topographic data, using geophysical methods to obtain the stratigraphic elevation data of the airport to be analyzed, performing terrain design on the airport to obtain cut and fill elevation data, importing the basic topographic data, the stratigraphic elevation data obtained through geophysical exploration, and the cut and fill elevation data after terrain design into an ArcGIS platform, and generating irregular triangular mesh (TIN) models for each; constructing a digital elevation model (DEM) based on the TIN; calculating the earthwork volume using the expansion and contraction coefficient; and dynamically adjusting the DEM and earthwork volume calculation results according to the actual situation during construction. This invention comprehensively considers stratigraphic information and cut and fill coefficients, making the earthwork calculation results more scientific and reasonable, and allowing for three-dimensional display and dynamic adjustment of the earthwork project before and after construction, resulting in stronger visualization effects and more flexible calculations. Attached Figure Description

[0036] Figure 1 A flowchart illustrating the workflow of an earthwork analysis method based on integrated geophysical exploration, as claimed in an embodiment of this application.

[0037] Figure 2 Geophysical exploration results map of an earthwork analysis method based on integrated geophysical exploration claimed in the embodiments of this application;

[0038] Figure 3 A schematic diagram of geophysical survey lines and original topographic elevation points for an earthwork analysis method based on integrated geophysical exploration claimed in this application embodiment;

[0039] Figure 4 A schematic diagram of the original terrain TIN model for an earthwork analysis method based on integrated geophysical exploration claimed in this application embodiment;

[0040] Figure 5 A schematic diagram of the overburden boundary TIN model for an earthwork analysis method based on integrated geophysical exploration claimed in this application embodiment;

[0041] Figure 6 A schematic diagram of a weathering limit TIN model for an earthwork analysis method based on integrated geophysical exploration, as claimed in an embodiment of this application;

[0042] Figure 7 A schematic diagram of the design elevation TIN model for an earthwork analysis method based on integrated geophysical exploration, as claimed in an embodiment of this application;

[0043] Figure 8 A schematic diagram of the original terrain DEM model for an earthwork analysis method based on integrated geophysical exploration claimed in this application embodiment;

[0044] Figure 9 A schematic diagram of the overburden boundary DEM model of an earthwork analysis method based on integrated geophysical exploration claimed in this application embodiment;

[0045] Figure 10 A schematic diagram of a weathering boundary DEM model of an earthwork analysis method based on integrated geophysical exploration, as claimed in an embodiment of this application.

[0046] Figure 11 This is a schematic diagram of a design elevation DEM model of an earthwork analysis method based on integrated geophysical exploration, which is claimed in an embodiment of this application. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0048] The terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0049] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0050] According to a first embodiment of the present invention, the present invention claims protection for a method for earthwork analysis based on integrated geophysical exploration, referring to... Figure 1 ,include:

[0051] Acquire basic topographic data and use geophysical methods to obtain the stratigraphic elevation data of the airport to be analyzed;

[0052] The terrain design of the airport to be analyzed is carried out to obtain the cut and fill elevation data of the airport to be analyzed;

[0053] Import basic terrain data, geophysical elevation data, and cut-and-fill elevation data after terrain design into the ArcGIS platform, and generate irregular triangular network (TIN) models for each.

[0054] A digital elevation model (DEM) is constructed based on the aforementioned triangular network (TIN).

[0055] Combining the expansion coefficient, the earthwork volume is calculated based on the area of ​​each pixel in the digital elevation model (DEM) and the corresponding elevation change.

[0056] Construction is carried out based on the earthwork volume, and the digital elevation model (DEM) and earthwork volume calculation results are dynamically adjusted according to the actual situation during the construction process.

[0057] Furthermore, the acquisition of basic topographic data, including obtaining the stratigraphic elevation data of the airport to be analyzed using geophysical methods, further includes:

[0058] In a local area of ​​the airport to be analyzed, a detection line was laid out, and seismic exploration and ground-penetrating radar methods were used to obtain layered data of the weathered layer and the overburden layer;

[0059] The resistivity distribution of the weathered layer and the overburden layer is obtained, and combined with the on-site geological conditions of the airport to be analyzed, the soil composition, resistivity and thickness of the overburden layer and the weathered layer of the airport to be analyzed are obtained.

[0060] The first local terrain elevation point is generated by combining the elevation of the measuring points of the geophysical survey line and the terrain data measured on site.

[0061] In this embodiment, a survey line was laid out in a local area of ​​an airport in a mountainous region, and the geophysical exploration results (anti-magnetic flux transient electromagnetic method) are as follows: Figure 2As shown in the results, the resistivity of the profile varies considerably, ranging from 10 Ω·m to 500 Ω·m, and is unevenly distributed along the survey line. Vertically, the resistivity gradually increases from shallow to deep. Based on the resistivity distribution and the on-site geological conditions, the overburden layer of this profile mainly consists of shallow clay, silt, and gravel, with a resistivity generally less than 150 Ω·m and a thickness less than 5 m. Bedrock is exposed locally, and the overall thickness of the overburden layer does not vary significantly and is relatively uniformly distributed. Based on the resistivity distribution, previous data, and on-site geological conditions, below the bottom boundary of the overburden layer, the resistivity is between 150 Ω·m and 300 Ω·m, presumably a strongly weathered layer of argillaceous dolomite and argillaceous limestone, with a thickness generally between 20 m and 30 m, showing little variation and a relatively uniform distribution. (Reference) Figure 3 Local topographic elevation point 1 is generated by combining the elevation of the geophysical survey line points and the topographic data measured on site.

[0062] Furthermore, the step of performing terrain design on the airport to be analyzed and obtaining the cut and fill elevation data of the airport to be analyzed also includes:

[0063] Based on the geophysical exploration results, the overburden depth and strong weathering boundary are determined by spatial interpolation. The thickness of the overburden and the strong weathering boundary in the area of ​​the airport to be analyzed are determined by spatial interpolation. The second elevation point of the overburden and the third elevation point of the strong weathering boundary are then constructed.

[0064] The elevation points for excavation are determined through terrain design.

[0065] In this embodiment, based on the overburden depth and strong weathering boundary determined by geophysical exploration results, the overburden thickness and strong weathering boundary thickness in the area are determined by spatial interpolation, and elevation points 2 for the overburden and 3 for the strong weathering boundary layer are created. Furthermore, excavation elevation point 4 is determined through terrain design.

[0066] Furthermore, the step of importing basic topographic data, geophysical elevation data, and cut-and-fill elevation data after terrain design into the ArcGIS platform, and generating irregular triangular network (TIN) models for each, also includes:

[0067] The original terrain TIN model is constructed using the first local terrain elevation point, the overburden boundary TIN model is constructed using the second elevation point, the weathering boundary TIN model is constructed using the third elevation point, and the design elevation TIN model is determined using the terrain design excavation elevation.

[0068] In this embodiment, the TIN model is constructed based on point and line data with elevation attributes. The TIN model is then generated using the ArcToolbox tool: [3D Analyst] → [Data Management] → [TIN] → [Create TIN]. In the pop-up dialog box, the path and name of the output TIN file are set, the input feature class is selected, and the elevation field is specified as the height source. For example, if the input data is contour lines, the elevation field of the contour lines is selected; if it is elevation points, the elevation attribute field of the points is selected.

[0069] Reference Figure 4-7 The original terrain TIN model 1 is constructed using the original terrain elevation point data 1, the overburden boundary TIN model 2 is constructed using the elevation point data 2, the weathering boundary TIN model 3 is constructed using the elevation point data 3, and the design elevation TIN model 4 is determined using the terrain design excavation elevation.

[0070] Furthermore, the construction of the digital elevation model (DEM) based on the irregular triangular network (TIN) also includes:

[0071] The original terrain TIN model is converted into the original terrain DEM model, the overburden boundary TIN model is converted into the overburden boundary DEM model, the weathering boundary TIN model is converted into the weathering boundary DEM model, and the design elevation TIN model is converted into the design elevation DEM model.

[0072] In this embodiment, when converting the TIN model to a DEM model, the ArcToolbox tool is used: [3DAnalyst Tools] → [Convert] → [Export from TIN] → [TIN to Raster] to convert the TIN model into raster format DEM data. In the dialog box, the input TIN file is selected, the output raster cell size (i.e., resolution) is set, and the path and name of the output file are specified. The cell size should be determined based on actual needs and data accuracy; a smaller cell size can provide higher resolution but will increase the data volume and computation time.

[0073] Reference Figure 8-11 The original terrain TIN model 1 is converted to the original terrain DEM model 1, the overburden boundary TIN model 2 is converted to the overburden boundary DEM model 2, the weathering boundary TIN model 3 is converted to the weathering boundary DEM model 3, and the design elevation TIN model 4 is converted to the design elevation DEM model 4.

[0074] Furthermore, the calculation of earthwork volume based on the area of ​​each pixel and the corresponding elevation change in the digital elevation model (DEM), incorporating the expansion coefficient, also includes:

[0075] The earthwork volume is calculated based on the following formula:

[0076] V = [cell(area)] × ΔZ;

[0077] In the formula: V is the calculated earthwork volume in m. 3 ; cell(area) is the size m of a specific cell in the DEM data to be calculated. 2 ΔZ represents the elevation change (in meters) of the calculated pixels before and after the proposed design.

[0078] Furthermore, the step of conducting construction based on the earthwork volume and dynamically adjusting the digital elevation model (DEM) and earthwork volume calculation results according to the actual situation during construction also includes:

[0079] Based on the original terrain DEM model and the aforementioned overburden boundary DEM model, the overburden cut volume is calculated using ArcGIS cut-fill analysis.

[0080] Based on the overburden boundary DEM model and the weathering boundary DEM model, the excavation volume of the strongly weathered rock layer is calculated using ArcGIS cut-fill analysis.

[0081] Based on the weathering boundary DEM model and the design elevation DEM model, the excavation volume of the moderately weathered rock layer is calculated using ArcGIS cut-fill analysis.

[0082] Based on the excavation volume of the overburden layer, the excavation volume of the strongly weathered rock layer, and the excavation volume of the moderately weathered rock layer, combined with the expansion coefficient of different rock layers, the waste and filling volumes of the airport to be analyzed are obtained.

[0083] In this embodiment, the overburden layer generally needs to be cleared during the excavation process. In this calculation, the amount of overburden layer clearing work is V1 = 488643.31m. 3 .

[0084] According to ArcGIS calculations, the excavation volume of strongly weathered dolomite and limestone, V2, is 3,049,475.48 m³. 3 According to the basic principle of earthwork balance, the excavation and filling of rock usually involves expansion. In this example, considering the expansion coefficient of the strongly weathered layer is 1.1, if the excavated volume of this strongly weathered dolomite and limestone is used for filling, the filling volume can reach 3,049,475.48 × 1.1 = 3,354,423.03 m³. 3 .

[0085] According to ArcGIS calculations, the excavation volume of moderately weathered dolomite and limestone is V3 = 8,523,312.10 m³. 3According to the basic principle of earthwork balance, the excavation and filling of rock usually involves expansion. In this example, considering the expansion coefficient of the moderately weathered layer is 1.2, if the excavated volume of this strongly weathered dolomite and limestone is used for filling, the filling volume can reach 8523312.10 × 1.2 = 10227974.52 m³. 3 .

[0086] Based on the above settlement results, it can be seen that the amount of excavated material involved in a local area of ​​the excavation zone near an airport in the southwestern mountainous region is V1 = 488643.31 m³. 3 The excavation volume is V2 + V3 = 3049475.48 + 8523312.10 = 11572787.58 m³. 3 Considering the expansion coefficients of different rock strata, the available volume for filling is (V2×1.1+V3×1.2)=3354423.03+10227974.52=13582397.55m³ 3 .

[0087] According to a second embodiment of the present invention, the present invention claims protection for an earthwork analysis system based on integrated geophysical exploration, comprising:

[0088] One or more processors;

[0089] A memory that stores one or more programs, which, when executed by one or more processors, enable the one or more processors to implement the aforementioned method for earthwork analysis based on integrated geophysical exploration.

[0090] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0091] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units. The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the description and drawings of this application, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

[0092] The specific embodiments of the invention have been described in detail above, but they are only examples, and this application is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the invention are also within the scope of this application. Therefore, all equivalent changes, modifications, and improvements made without departing from the spirit and principles of this application should be covered within the scope of this application.

Claims

1. A method for earthwork and rock excavation analysis based on integrated geophysical exploration, characterized in that, include: Acquiring basic topographic data, using geophysical methods to obtain the stratigraphic elevation data of the airport to be analyzed, also includes: In a local area of ​​the airport to be analyzed, a detection line was laid out, and seismic exploration and ground-penetrating radar methods were used to obtain layered data of the weathered layer and the overburden layer; The resistivity distribution of the weathered layer and the overburden layer is obtained, and combined with the on-site geological conditions of the airport to be analyzed, the soil composition, resistivity and thickness of the overburden layer and the weathered layer of the airport to be analyzed are obtained. The first local terrain elevation point is generated by combining the elevation of the measuring points of the geophysical survey line and the terrain data measured on site. The terrain design for the airport to be analyzed, and the acquisition of cut and fill elevation data for the airport to be analyzed, also include: Based on the geophysical exploration results, the overburden depth and strong weathering boundary are determined by spatial interpolation. The thickness of the overburden and the strong weathering boundary in the area of ​​the airport to be analyzed are determined by spatial interpolation. The second elevation point of the overburden and the third elevation point of the strong weathering boundary are then constructed. Determine the excavation elevation points through terrain design; Import basic terrain data, geophysical elevation data, and cut-and-fill elevation data after terrain design into the ArcGIS platform, and generate irregular triangular network (TIN) models for each. A digital elevation model (DEM) is constructed based on the aforementioned triangular network (TIN). Combining the expansion coefficient, the earthwork volume is calculated based on the area of ​​each pixel in the digital elevation model (DEM) and the corresponding elevation change. Construction is carried out based on the earthwork volume, and the digital elevation model (DEM) and earthwork volume calculation results are dynamically adjusted according to the actual situation during the construction process. The process of importing basic terrain data, geophysical elevation data, and cut-and-fill elevation data after terrain design into the ArcGIS platform, and generating irregular triangular network (TIN) models for each, also includes: The original terrain TIN model is constructed using the first local terrain elevation point, the overburden boundary TIN model is constructed using the second elevation point, the weathering boundary TIN model is constructed using the third elevation point, and the design elevation TIN model is determined using the terrain design excavation elevation. The construction of the digital elevation model (DEM) based on the irregular triangular network (TIN) further includes: The original terrain TIN model is converted into the original terrain DEM model, the overburden boundary TIN model is converted into the overburden boundary DEM model, the weathering boundary TIN model is converted into the weathering boundary DEM model, and the design elevation TIN model is converted into the design elevation DEM model. When constructing a TIN model, point and line data with elevation attributes are used. The path and name of the output TIN file are set, the input feature class is selected, and the elevation field is specified as the height source. If the input data is contour lines, the elevation field of the contour lines is selected; if it is elevation points, the elevation attribute field of the points is selected. When converting a TIN model to a DEM model, the TIN model is converted into DEM data in raster format. In the dialog box, select the input TIN file, set the cell size (resolution) of the output raster, and the path and name of the output file.

2. The method for earthwork analysis based on integrated geophysical exploration according to claim 1, characterized in that, The calculation of earthwork volume based on the area of ​​each pixel and the corresponding elevation change in the digital elevation model (DEM), incorporating the expansion coefficient, further includes: The earthwork volume is calculated based on the following formula: ； In the formula: V is the calculated earthwork volume in meters. 3 ; cell(area) is the size m of a specific cell in the DEM data to be calculated. 2 ΔZ represents the elevation change (in meters) of the calculated pixels before and after the proposed design.

3. The method for earthwork analysis based on integrated geophysical exploration according to claim 2, characterized in that, The method of constructing based on the earthwork volume and dynamically adjusting the digital elevation model (DEM) and earthwork volume calculation results according to the actual situation during construction also includes: Based on the original terrain DEM model and the aforementioned overburden boundary DEM model, the overburden cut volume is calculated using ArcGIS cut-fill analysis. Based on the overburden boundary DEM model and the weathering boundary DEM model, the excavation volume of the strongly weathered rock layer is calculated using ArcGIS cut-fill analysis. Based on the weathering boundary DEM model and the design elevation DEM model, the excavation volume of the moderately weathered rock layer is calculated using ArcGIS cut-fill analysis. Based on the excavation volume of the overburden layer, the excavation volume of the strongly weathered rock layer, and the excavation volume of the moderately weathered rock layer, combined with the expansion coefficient of different rock layers, the waste and filling volumes of the airport to be analyzed are obtained.

4. An earthwork analysis system based on integrated geophysical exploration, characterized in that, include: One or more processors; A memory having stored one or more programs that, when executed by one or more processors, cause the one or more processors to implement an earthwork analysis method based on integrated geophysical exploration as described in any one of claims 1 to 3.

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