CN114201794A - BIM-based method and device for measuring and calculating engineering quantity of special-shaped earthwork and stony - Google Patents
BIM-based method and device for measuring and calculating engineering quantity of special-shaped earthwork and stony Download PDFInfo
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Abstract
The invention discloses a BIM-based method and a device for measuring and calculating engineering quantity of special-shaped earthwork and stone, wherein the method comprises the following steps: s01, establishing an original terrain curved surface model and designing a finished curved surface model; s02, establishing a volume curved surface model according to the original terrain curved surface model and the designed finished curved surface model, and calculating the total volume of earthwork of each excavating and filling partition; s03, determining a partition range according to the original terrain surface model and the designed finished surface model, and establishing a plurality of horizontal layered surface models; s04, establishing boundary surface models among different compaction degree areas, layering according to the currently obtained surface models to generate each layered volume surface, and calculating the engineering quantity of the filled earthwork of each layer with different compaction degrees according to a volume surface iterative subtraction method. The method can realize the engineering quantity measurement and calculation of the ultra-large special-shaped earthwork, and has the advantages of simple realization method, strong flexibility, high measurement and calculation efficiency, high measurement and calculation precision and the like.
Description
Technical Field
The invention relates to the technical field of earthwork engineering measurement, in particular to a BIM-based calculation method and device for special-shaped earthwork engineering quantity.
Background
The earthwork project amount is an important guidance basis for the construction side bidding budget measurement, the professional sub-package settlement measurement, the construction management, the earthwork allocation, the technical scheme and the like, and the partition, layering and partial compaction project amount is one of the main contents. The engineering quantity of the special-shaped earthwork is complex to measure and calculate, and particularly, the special-shaped earthwork is ultra-large (millions of earthwork). Aiming at the earth and stone volume calculation of the special-shaped curved surface, at present, a manual measurement mode of manual calculation is mainly carried out by adopting a two-dimensional drawing section method based on topographic survey point data, namely an approximate method for estimating the volume by using a two-dimensional drawing, but the mode has the following problems:
1. the design of the simulated side slope lacks authenticity, larger error exists between the design and the real side slope, and the engineering quantity obtained by surface-to-surface stretching between the sections is also inaccurate, particularly for millions of overlarge earthwork, the error of the calculated quantity is extremely large, and only rough measurement can be realized;
2. the measurement efficiency is low, the measurement cannot be realized in time, especially for the earthwork filling project with complicated compaction degree partitions and extremely large filling layering number, a large amount of time needs to be consumed to realize the measurement, and the efficiency of the manual calculation-based calculation method cannot meet the requirement on construction timeliness;
3. linkage modification of parameters and measurement results cannot be realized, once design parameters are modified, all measurement needs to be executed again, a large number of repeated calculations need to be executed, and real-time reference data cannot be provided for construction in time.
Some practitioners propose to use a volume surface function in three-dimensional software such as BIM software (Civil3D) to realize intelligent measurement and calculation of earth and stone engineering quantity, and for example, patent application CN112765708A discloses a BIM-based earth and stone quantity calculation method, system, equipment and storage medium. However, the intelligent earth and stone engineering quantity measuring and calculating method based on the BIM software is only suitable for small-scale earth and stone engineering and is not suitable for measuring and calculating large-scale, especially ultra-large earth and stone engineering quantities.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the technical problems in the prior art, the invention provides the BIM-based method and the BIM-based device for calculating the irregular earthwork engineering quantity, which have the advantages of simple implementation method, strong flexibility, high calculation efficiency and high calculation precision.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a BIM-based method for calculating the engineering quantity of the special-shaped earthwork and the stone comprises the following steps:
s01, establishing an original terrain curved surface model according to original terrain measurement data of the special-shaped earthwork to be detected, and establishing a designed finished curved surface model according to terrain design data of the special-shaped earthwork to be detected;
s02, establishing a volume curved surface model based on the original terrain curved surface model and the designed finished curved surface model, and calculating the total volume of earthwork of each excavating and filling partition according to the volume curved surface model;
s03, determining a partition range according to the original terrain surface model and the designed finished surface model, and establishing a plurality of horizontal layered surface models for calculating layered volumes in the partition range;
and S04, establishing boundary surface models among different compaction degree areas in the filling area surface range, layering according to the surface models obtained in S01-S04 to generate each layered volume surface, and sequentially calculating filling earthwork engineering quantities of each layer with different compaction degrees according to the volume curves of each layer by a volume surface iterative subtraction method.
Further, the step of building a volumetric surface model in step S02 includes:
s201, generating an excavating and filling zero line according to the original terrain curved surface model and the designed finished curved surface model;
s202, establishing various side slope surface models from the designed finished surface model through slope relief according to the original terrain surface model based on the digging and filling zero line to form a designed finished surface model containing a side slope;
s203, establishing the volume curve model according to the original terrain surface model and the design finished surface model containing the side slope.
Further, the step S202 includes: obtaining each digging and filling side slope top line according to the digging and filling zero line, obtaining input side slope parameters, and establishing to obtain the side slope curved surface model, wherein the elevation of the top line is determined according to the boundary of the designed finished curved surface model; and taking the slope surface model as a boundary surface of the filling area.
Further, in step S201, specifically, the original topographic curved surface model is used as a reference surface, the designed finished curved surface model is used as a reference surface, and the cut and fill zero line is generated; and/or in step S203, specifically, the volume surface model is established by using the original terrain surface model as a reference surface and the designed finished surface model as a reference surface.
Further, the step S02 of calculating the total volume of earthwork of each excavation and filling area according to the volumetric surface model includes: and performing excavation and filling partition according to the excavation and filling zero line to obtain a range line of a single excavation or filling area, guiding the range line to a corresponding position in the established volume surface model, and picking up the range line through an internal volume calculation module of BIM software to obtain the engineering quantity of each excavation or filling partition.
Further, in step S03, the building the horizontal layered surface model according to a predetermined layered filling thickness in a height range from a lowest point of the original topographic surface model to a highest point of the designed finished surface model specifically includes: and establishing a horizontal curved surface model by taking a single filling area range line as a boundary line and taking the horizontal curved surface model as a cutting surface, wherein the initial elevation of the cutting surface is the lowest point of the original terrain curved surface model in the single filling area range, and generating a plurality of horizontal layered curved surface models layer by layer according to the preset layered filling thickness through the lowest point.
Further, the step S04 includes:
s401, establishing slope surface models for different compaction degree areas according to slope parameters of the different compaction degree areas and using the slope surface models as boundary surface models, determining slope crest line elevations according to the design surface models, and using the original terrain surface models as reference surface;
s402, using the boundary surface model as a compaction degree partition interface, using the horizontal layered surface model as a vertical layered interface, performing elevation according to the lowest point of the original terrain surface model of a single excavation or filling and the layered thickness, building a plurality of volume surface models with different compaction degrees in the same layer of filling area through combining the surface models obtained in the steps S01-S03, and calculating the engineering quantities with different compaction degrees in the same layer of filling area by using the volume surface models with different compaction degrees in the same layer of filling area.
Further, in step S402, when the elevation of the horizontal layered surface model is higher than the highest point of the original topographic surface model in the single fill area, the reference surface is taken as the horizontal layered surface model of the previous layer, and the elevation of the reference surface is taken as the thickness of the added layered layer of the horizontal layered surface model of the previous layer.
A project amount measuring and calculating device of BIM-based irregular earthwork comprises a microprocessor and a memory which are connected with each other, and is characterized in that the microprocessor is programmed or configured to execute the steps of the BIM-based irregular earthwork project amount calculating method; the memory is programmed or configured to execute the BIM-based method for calculating the engineering quantity of the irregular earthwork.
A computer readable storage medium having stored thereon a computer program programmed or configured to perform the BIM-based deformed earthwork quantity estimation method described above.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, by utilizing the curved surface modeling, slope releasing and volume curved surface functions of BIM software, multi-curved surface combination is carried out by establishing boundary curved surfaces, boundary curved surfaces and horizontal layered curved surface models, and then based on a filling area volume curved surface iterative subtraction method, the quick batch calculation of the earth and stone volume of the ultra-large special-shaped earth and stone engineering quantity partitioning, layering and partial pressure compactness can be realized, the working efficiency can be greatly improved, the measuring and calculating accuracy is high, and the problems of large result error, large partition layering workload, difficulty in dynamic adjustment and the like of the traditional two-dimensional approximate volume calculation method are solved.
2. The method can also realize dynamic update of the three-dimensional surface model and the engineering quantity, can realize engineering quantity measurement and calculation of any single excavation or filling area, and realize batch measurement and calculation of the engineering quantity of the single filling area with layering and partial pressure real degree, has high measurement and calculation accuracy, can avoid human calculation errors, has high measurement and calculation speed, and can provide high-efficiency measurement and calculation results in real time.
Drawings
Fig. 1 is a schematic flow chart illustrating an implementation of the BIM-based method for calculating the engineering quantity of the irregular earthwork.
FIG. 2 is a schematic diagram of an operation interface for reading coordinates of an elevation point of a TXT file according to an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating an effect of an original terrain surface model generated in an embodiment of the present invention.
FIG. 4 is a schematic diagram illustrating the effect of the designed-in surface model generated in the embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating the effect of the slope surface model established in the embodiment of the present invention.
FIG. 6 is a schematic diagram illustrating the effect of the volume surface model established in the embodiment of the present invention.
Fig. 7 is a schematic diagram illustrating the calculation of the volume in each of the excavation and filling sub-areas based on the original terrain surface model and the designed finished surface model (including the slope) in the embodiment of the present invention.
Fig. 8 is a schematic diagram illustrating an effect of a horizontal layered surface model established based on the lowest point of the original topographic surface model from bottom to top in an embodiment of the present invention.
FIG. 9 is a schematic diagram illustrating the effect of a boundary surface model with different compaction ranges in the same filling area according to an embodiment of the present invention.
Fig. 10 is a schematic diagram of the effect of the partitioned hierarchical computation program system for performing the iterative decreasing computation of the earthwork hierarchical volume based on the BIM software in the specific application embodiment of the present invention.
FIG. 11 is a schematic diagram of a computing program algorithm in an embodiment of the present invention.
FIG. 12 is a diagram illustrating a partial hierarchical partition engineering table derived from the calculation result according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and specific preferred embodiments of the description, without thereby limiting the scope of protection of the invention.
As shown in fig. 1, the step of the method for measuring and calculating the engineering quantity of the special-shaped earthwork based on the BIM in the embodiment includes:
s01, establishing an original terrain curved surface model according to original terrain measurement data of the special-shaped earthwork to be detected, and establishing a designed finished curved surface model according to terrain design data of the special-shaped earthwork to be detected;
s02, establishing a volume surface model based on the original terrain surface model and the designed finished surface model, and calculating the total volume of earthwork of each excavating and filling partition according to the volume surface model;
s03, determining a partition range according to the original terrain surface model and the designed finished surface model, and establishing a plurality of horizontal layered surface models for calculating layered volumes in the partition range;
and S04, establishing boundary surface models among different compaction degree areas in the filling area surface range, layering according to the surface models obtained in S01-S04 to generate each layered volume surface, and calculating filling earthwork engineering quantities of different compaction degrees of each layer according to the layered volume curves by a volume surface iterative subtraction method.
According to the method, BIM software is utilized, an original terrain curved surface model is combined, a finished curved surface model is designed to establish a volume curved surface model, the total volume of earthwork of each excavating and filling area is calculated, then each horizontal layered curved surface model is established in a range of the area, boundary curved surface models between areas with different compaction degrees are established in a range of the curved surface of the filling area, layering is performed by combining the established curved surface models, and the volume curve of each layering is used for finally calculating the engineering quantity of filling earthwork with different compaction degrees of each layering. Through the steps, various parameters such as slope design parameters, terrain design parameters, layering thickness, dry density, compactness and the like can be adjusted in real time in the construction process, dynamic updating of a three-dimensional surface model and engineering quantity can be realized, engineering quantity measurement and calculation of any independent excavation or filling area can be realized, batch measurement and calculation of layering and partial pressure compactness engineering quantity of the independent filling area can be realized, measurement and calculation accuracy is high, manual calculation errors can be avoided, measurement and calculation speed is high, efficient measurement and calculation results can be provided in real time, the method is particularly suitable for measurement and calculation of ultra-large earthwork engineering quantity, and accordingly fine management, settlement measurement, technical scheme establishment and implementation and the like of a construction site can be conveniently achieved subsequently.
In this embodiment, BIM software (Civil3D) is specifically adopted to achieve measurement and calculation of the engineering quantity of the irregular earthwork according to the steps, and Civil3D is developed for the second time, so that the function of establishing a layered curved surface of each layer and calculating the volume of each layer is achieved, batch calculation of the layered and partial compaction engineering quantity of the separately filled area can be achieved, measurement and calculation of the engineering quantity of the ultra-large irregular earthwork can be achieved quickly and efficiently, and the problems that a large amount of repetitive calculation is needed and the real-time performance is poor in a traditional manual measurement mode are solved effectively. It can be understood that, besides using the BIM software, it is of course possible to use other three-dimensional software to implement the steps S01 to S04 according to actual requirements, and even possible to combine different three-dimensional software to implement the steps, for example, part of the steps are implemented by using the BIM software, and the other steps are implemented by using other types of three-dimensional software, so as to fully exert the advantages of the measurement and calculation of different three-dimensional software.
The original topographic curved surface model is a three-dimensional topographic curved surface model established based on measurement data such as point positions, elevations and the like of field measurement, and the designed finished curved surface model is a finished target curved surface model established according to provided design data such as typical sections, central lines and the like. In step S01, an original topographic surface model is created according to the original topographic elevation point data, and a designed finished surface model is created according to the contour line data of the finished surface.
As an optional implementation manner, in this embodiment, before the step S01, a step of sorting and importing the measurement data is further included, where the sorted topographic data specifically includes:
a floor plan of topographic data, including elevation and coordinate information of original topographic measurement points;
the topographic map of topographic data comprises topographic contour line elevation, coordinate information and the like of a finished surface;
the slope parameter map of the terrain data comprises parameter information such as slope ratio of each slope, berm and slope elevation of the field.
In a specific application embodiment, an interface for sorting and importing measurement data in the BIM is shown in fig. 2, and the specific measurement data type and the selection of each parameter can be selected and configured according to actual requirements.
After the topographic data is obtained as described above, an original topographic curved surface model and a designed finished curved surface model are established as step S01. In this embodiment, the step of establishing the original topographic curved surface model according to the measurement data in step S01 specifically includes: firstly, measuring data such as elevation and coordinates of discrete points of an original terrain, forming a TXT document, then importing the TXT document into BIM software to form three-dimensional discrete points, establishing a triangulation network curved surface model through the BIM software, and realizing dynamic updating of the model by associating parameter information of the TXT document high-distance points. In a specific application embodiment, the effect of the original terrain surface model generated based on the TXT file by using the above method is shown in fig. 3. The above model building process can be adaptively adjusted or configured according to the characteristics of the three-dimensional software used and the actual requirements.
In this embodiment, the step of establishing the designed finished surface model in step S01 specifically includes: firstly, contour lines of a finished surface are converted into three-dimensional multi-segment lines, a triangular network curved surface model is established by connecting the contour lines through BIM software, elevation points missing from each corner of the boundary of the finished surface are added, redundant triangular networks are deleted, and a smooth curved surface model with transverse slopes and longitudinal slopes is formed. In a specific application embodiment, the effect of the designed finished curved surface model generated based on the design contour line by adopting the method is shown in fig. 4. The above model building process can be adaptively adjusted or configured according to the characteristics of the three-dimensional software used and the actual requirements.
The step of establishing the volumetric surface model in step S02 in this embodiment includes:
s201, generating an excavating and filling zero line according to the original terrain surface model and the designed finished surface model;
s202, establishing various side slope surface models from the designed finished surface model through slope relief according to the original terrain surface model based on the digging and filling zero line to form a designed finished surface model containing a side slope;
s203, establishing a volume curve model according to the original terrain surface model and the design completion surface model containing the side slope.
In step S201, the original topographic curved surface model is specifically used as a reference surface, and the designed finished curved surface model is used as a reference surface to generate the cut and fill zero line.
The step S202 specifically includes: the method comprises the steps of obtaining each digging and filling side slope top line according to digging and filling zero lines, obtaining input side slope parameters, establishing to obtain a side slope curved surface model, using the side slope curved surface model as a boundary surface of a filling area, namely serving as a boundary of a finished curved surface filling area, determining elevation of the top line according to the boundary of a designed finished curved surface model, and specifically enabling elevation of the top line to be the elevation of the boundary of the designed finished curved surface model. Through the steps, the parameters of filling and digging zero lines and side slopes can be combined, and various side slope surface models are established from the designed finished surface model through slope relief based on the original terrain surface model. In a specific application embodiment, the slope surface model generated and established based on the original terrain surface model and the finished surface model by adopting the method is shown in fig. 5.
In step S203, the designed curved surface model and each slope curved surface model are specifically pasted into a curved surface model, and the designed finished curved surface model is used as a reference curved surface and a comparison curved surface to establish a volume curved surface model. In a specific application embodiment, the volume curve established by the method based on the original terrain curve model and the designed finished curve (including the slope) model is shown in fig. 6.
In this embodiment, the step S02 of calculating the total volume of earthwork of each excavation and filling area according to the volume surface model specifically includes: and performing excavation and filling partition according to the excavation and filling zero line to obtain a range line of a single excavation or filling area, introducing the range line into a corresponding position in the established volume surface model, and picking up the range line through an internal volume calculation module of BIM software to obtain the engineering quantity of each excavation or filling partition. Specifically, after the cut and fill zero line is generated in step S201, cut and fill partitions are made according to the cut and fill zero line to obtain individual cut or fill area range lines, the range lines are guided to the correct position of the established volume curved surface, and the range lines are picked up by the volume calculation function in the BIM software interface, so as to obtain the engineering quantity (volume in the partition interface) of each individual cut or fill partition. In a specific application embodiment, the volume calculation in each excavation and filling partition based on the original terrain surface model and the designed finished surface model (including the slope) by using the method is shown in fig. 7.
If the step S02 is implemented by using other three-dimensional software except BIM software, the method may also be adapted or configured according to the characteristics or actual requirements of different three-dimensional software, and the method may also be adapted or configured according to the characteristics or actual requirements of different three-dimensional software.
In step S03, a horizontal layered surface model is built according to a predetermined layered filling thickness in a height range from a lowest point of the original topographic surface model to a highest point of the designed finished surface model, so as to build a plurality of horizontal layered curve models with a certain elevation according to the partition range for cutting and layering. The specific steps for establishing the horizontal layered surface model comprise: and establishing a horizontal curved surface model by taking a single filling area range line as a boundary line and taking the horizontal curved surface model as a cutting surface, wherein the initial elevation of the cutting surface is the lowest point of the original terrain curved surface model in the single filling area range, and generating a plurality of horizontal layered curved surface models layer by layer upwards through the lowest point according to the preset layered filling thickness, so that cutting layering can be realized according to each horizontal layered curved surface model, and the layered volume of each layer is calculated respectively. In a specific application embodiment, the horizontal layered curved surface model which is established based on the lowest point of the original terrain from bottom to top at a certain thickness interval by adopting the method is shown in fig. 8, and the volume of each layer is calculated according to the filling thickness by using the horizontal layered curved surface model.
In step S04, a boundary surface model between different compaction areas is built by slope releasing in the curved surface range of the filling area, and then the curved surface models built in steps S01 to S03 are layered from low to high to generate a volume curved surface of each layer, and the volume curved surface iterative subtraction method is used to sequentially calculate the engineering quantity of the filling earthwork of different compaction of each layer. When the volume curved surface iterative subtraction method is used for calculation, the method specifically comprises the following steps: sequentially calculating the layered earthwork volume Vi from the 1 st layer to the nth layer by layer, namely, firstly judging whether the elevation of the horizontal layered curved surface i is lower than the highest point of the designed finished curved surface, and if the elevation of the horizontal layered curved surface i is lower than the highest point of the designed finished curved surface, calculating the earthwork volume Vi between the layered curved surface i and the lower curved surface i-1 to be Vfi-Vfi-1; if not, the n-th layer (i.e., the uppermost layer, i ═ n) has an earth volume Vn ═ Vfn — Vfn-1 calculated.
In a specific application embodiment, the boundary surface model of the same filling area and different compaction areas obtained by the method is shown in fig. 9, and the boundary surface model is used as an interface for partition calculation of different compaction areas; in a specific application embodiment, after various curved surfaces are built based on the BIM software, a partition layering calculation program system for performing an iterative decreasing calculation of an earth layering volume is shown in fig. 10.
As shown in fig. 11, in the range from the lowest point of the original terrain to the highest point of the designed finished curve model, the designed finished curve model is cut and layered into a plurality of horizontal layered curve models according to a given layered filling thickness h, boundary curve models between different compaction degree regions (compaction degree > 90%, compaction degree > 93%) are established in the filling region curve range, the boundary curve models are used as compaction degree partition interfaces, the horizontal layered curve models are used as vertical layered interfaces, and marking is performed according to the lowest point of the original terrain curve model of a single excavation or filling and the layered thickness h; and then, combining the slope surface model, the boundary surface model and the horizontal layered surface model to carry out volume surface iterative subtraction to obtain engineering quantities of filled earthwork and stone with different compaction degrees of each layer, and obtaining 1 layer of engineering quantities with 90% compaction degrees in the figure.
In this embodiment, the specific step of step S04 includes:
s401, establishing slope surface models for different compaction degree areas according to slope parameters of different compaction degree areas and using the slope surface models as boundary surface models, namely establishing slope surface models according to different compaction degree ranges of the same filling area and using the slope surface models as boundary surface models, wherein the elevation of a slope top line is determined according to a design surface model, and an original terrain surface model is used as a reference surface;
s402, using the boundary surface model as a compaction degree partition interface, using the horizontal layered surface model as a vertical layered interface, performing elevation according to the lowest point of the original terrain surface model of a single excavation or filling and the layered thickness, building a plurality of volume surface models with different compaction degrees of the same layer of filling area through combining the surface models obtained in the steps S01-S03, and calculating the engineering quantities with different compaction degrees of the same layer of filling area by using the volume surface models with different compaction degrees of the same layer of filling area.
In a specific application embodiment, in step S401, the plane range lines of different compaction areas in the single filling area are drawn first, then slope surface models are established for the different compaction areas according to slope parameters of the designed different compaction areas, the elevation of the top slope line is specifically the surface elevation of the designed finished surface model, the original terrain surface model is a reference surface, and then the slope surface model is used as a boundary surface model.
In a specific application embodiment, in step S402, the slope surface model is used as a filling and excavating partition boundary surface, the boundary surface model is used as a compaction partition interface, the horizontal layered surface model is used as a vertical layered interface, and the elevation is the thickness of the lowest point plus partition layer of the original terrain surface model for individual excavation or filling, and then a plurality of volume surface models with different compaction degrees in the same filling area are established by combining the above surface models, so as to obtain different compaction engineering quantities in the same filling area. Further, when the elevation of the horizontal layered curved surface model (filling elevation) is higher than the highest point of the original terrain curved surface model in a single filling area, the reference curved surface is the previous filled horizontal layered curved surface model, and the comparison curved surface elevation is the added thickness of the previous filled horizontal layered curved surface model (namely the current horizontal layered curved surface model).
And then, repeatedly performing the layering and partial pressure real degree engineering quantity measurement and calculation, namely measuring and calculating the engineering quantity of each layering and partial pressure real degree in batches, and deriving the partitioning, layering and partial pressure real degree engineering quantity table obtained by batch calculation through software. In a specific embodiment, a partial hierarchical partition engineering table derived from the calculation result is shown in fig. 12.
As an optional implementation manner, for the application of calculating the partition, layering, and partial compaction engineering quantities of a certain oversized special-shaped earth and stone engineering, after the step S04 in this embodiment, the method may further include the steps of determining each layered filling construction plan, and obtaining boundary lines, areas, spatial coordinates, elevations, and the like of each layered different compaction area range by extracting the intersecting lines of the horizontal layered curved surface model, the original terrain curved surface model, the slope curved surface model, and the boundary curved surface model.
As an optional implementation manner, when generating the slope surface model and the boundary surface model in this embodiment, the method may further include a step of deriving three-dimensional coordinates, contour lines, toe lines, and the like of the slope surface points.
In addition, the embodiment further includes writing the calculation results of the layering and partial compaction engineering quantities of the batch calculation into the model in sequence in a one-to-one correspondence manner, and the engineering quantity effect is as shown in fig. 10. The calculation result of step 7) can also be directly exported to Excel through a calculation program system.
The method can quickly and accurately establish the three-dimensional curved surface model based on the measured data, has high precision and high speed, and only needs about 10-30 minutes in the whole process of importing the data to generate the model and only needs about 10 minutes for batch exporting the engineering quantity when the method is adopted for testing; and the parameters such as the design parameters of the side slope, the terrain design parameters of the finished surface, the layering thickness, the dry density, the compaction degree and the like can be adjusted in real time in the construction process, the dynamic update of a three-dimensional curved surface model and the engineering quantity is realized, meanwhile, the known elevation point, contour line and side slope design parameters are utilized to calculate the engineering quantity of the subarea, the layering and the partial compaction degree, the calculation is fast, the accuracy is high, the graph is visual, the numerical value is accurate, and the artificial calculation errors of the engineering quantity of the subarea, the layering and the partial compaction degree of the special-shaped curved surface can be avoided, so that the subsequent fine management, the first-square budget settlement measurement, the sub-package settlement measurement, the technical scheme compilation and the like of the large-scale earthwork construction site can be realized conveniently.
In addition, the present embodiment further provides a work volume measuring and calculating device for the irregular earthwork based on the BIM, which includes a microprocessor and a memory connected to each other, wherein the microprocessor is programmed or configured to execute the steps of the method for measuring the engineering volume of the irregular earthwork; the memory is programmed or configured to perform the above-described method of calculating the engineering quantity of the irregular earthwork.
In addition, the present embodiment also provides a computer-readable storage medium, in which a computer program programmed or configured to execute the above-mentioned method for measuring and calculating the engineering quantity of the irregular earthwork is stored.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The present application is directed to methods, apparatus (systems), and computer program products according to embodiments of the application wherein instructions, which execute via a flowchart and/or a processor of the computer program product, create means for implementing functions specified in the flowchart and/or block diagram block or blocks. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. A BIM-based method for calculating the engineering quantity of the special-shaped earth and stone is characterized by comprising the following steps:
s01, establishing an original terrain curved surface model according to original terrain measurement data of the special-shaped earthwork to be detected, and establishing a designed finished curved surface model according to terrain design data of the special-shaped earthwork to be detected;
s02, establishing a volume curved surface model based on the original terrain curved surface model and the designed finished curved surface model, and calculating the total volume of earthwork of each excavating and filling partition according to the volume curved surface model;
s03, determining a partition range according to the original terrain surface model and the designed finished surface model, and establishing a plurality of horizontal layered surface models for calculating layered volumes in the partition range;
and S04, establishing boundary surface models among different compaction degree areas in the filling area surface range, layering according to the surface models obtained in S01-S04 to generate each layered volume surface, and sequentially calculating filling earthwork engineering quantities of each layer with different compaction degrees according to the volume curves of each layer by a volume surface iterative subtraction method.
2. The BIM-based irregular earthwork calculation method of claim 1, wherein the step of building a volume surface model in step S02 comprises:
s201, generating an excavating and filling zero line according to the original terrain curved surface model and the designed finished curved surface model;
s202, establishing various side slope surface models from the designed finished surface model through slope relief according to the original terrain surface model based on the digging and filling zero line to form a designed finished surface model containing a side slope;
s203, establishing the volume curve model according to the original terrain surface model and the design finished surface model containing the side slope.
3. The BIM-based irregular earthwork calculation method according to claim 2, wherein the step S202 comprises: obtaining each digging and filling side slope top line according to the digging and filling zero line, obtaining input side slope parameters, and establishing to obtain the side slope curved surface model, wherein the elevation of the top line is determined according to the boundary of the designed finished curved surface model; and taking the slope surface model as a boundary surface of the filling area.
4. The BIM-based method for calculating the engineering quantity of the special-shaped earthwork and stone based on the claim 2, wherein in the step S201, the excavation and filling zero line is generated by taking the original terrain curved surface model as a reference surface and the designed finished curved surface model as a reference surface; and/or in step S203, specifically, the volume surface model is established by using the original terrain surface model as a reference surface and the designed finished surface model as a reference surface.
5. The BIM-based method for calculating earthwork of a special-shaped earth and rock engineering volume according to claim 1, wherein the step S02 of calculating the total volume of earthwork of each excavation and filling area according to the volumetric surface model comprises: and performing excavation and filling partition according to the excavation and filling zero line to obtain a range line of a single excavation or filling area, guiding the range line to a corresponding position in the established volume surface model, and picking up the range line through an internal volume calculation module of BIM software to obtain the engineering quantity of each excavation or filling partition.
6. The BIM-based method for calculating engineering quantities of irregular earthwork and rock according to claim 1, wherein the step S03 is performed to establish the horizontal layered curved surface model according to a predetermined layered filling thickness within a height range from a lowest point of the original topographic curved surface model to a highest point of the designed finished curved surface model, and specifically comprises: and establishing a horizontal curved surface model by taking a single filling area range line as a boundary line and taking the horizontal curved surface model as a cutting surface, wherein the initial elevation of the cutting surface is the lowest point of the original terrain curved surface model in the single filling area range, and generating a plurality of horizontal layered curved surface models layer by layer according to the preset layered filling thickness through the lowest point.
7. The BIM-based method for calculating the irregular earthwork engineering quantity according to any one of claims 1 to 6, wherein the step S04 comprises:
s401, establishing slope surface models for different compaction degree areas according to slope parameters of the different compaction degree areas and using the slope surface models as boundary surface models, determining slope crest line elevations according to the design surface models, and using the original terrain surface models as reference surface;
s402, using the boundary surface model as a compaction degree partition interface, using the horizontal layered surface model as a vertical layered interface, performing elevation according to the lowest point of the original terrain surface model of a single excavation or filling and the layered thickness, building a plurality of volume surface models with different compaction degrees in the same layer of filling area through combining the surface models obtained in the steps S01-S03, and calculating the engineering quantities with different compaction degrees in the same layer of filling area by using the volume surface models with different compaction degrees in the same layer of filling area.
8. The BIM-based method for calculating engineering quantities of special-shaped earthwork and earth, according to claim 7, wherein in step S402, when the elevation of the horizontal layered surface model is higher than the highest point of the original topographic surface model in a single fill area, the reference surface is taken as the horizontal layered surface model of the previous layer, and the elevation of the reference surface is taken as the thickness of the horizontal layered surface model of the previous layer added with the layered thickness.
9. A BIM-based engineering quantity measuring and calculating device for special-shaped earthwork, which comprises a microprocessor and a memory which are connected with each other, and is characterized in that the microprocessor is programmed or configured to execute the steps of the BIM-based engineering quantity measuring and calculating method for special-shaped earthwork according to any one of claims 1 to 8; the memory is programmed or configured to perform the BIM-based method for engineering measurements of earthworks of irregular shapes according to any one of claims 1 to 8.
10. A computer readable storage medium having stored thereon a computer program programmed or configured to perform the BIM based deformed earthwork quantity calculation method according to any one of claims 1 to 8.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114969910A (en) * | 2022-05-17 | 2022-08-30 | 国家能源集团国源电力有限公司 | Waste rock filling reclamation method |
| CN117910285A (en) * | 2024-03-20 | 2024-04-19 | 中国电建集团昆明勘测设计研究院有限公司 | Creation method, device, equipment and storage medium of library basin design curved surface model |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114969910A (en) * | 2022-05-17 | 2022-08-30 | 国家能源集团国源电力有限公司 | Waste rock filling reclamation method |
| CN117910285A (en) * | 2024-03-20 | 2024-04-19 | 中国电建集团昆明勘测设计研究院有限公司 | Creation method, device, equipment and storage medium of library basin design curved surface model |
| CN117910285B (en) * | 2024-03-20 | 2024-06-04 | 中国电建集团昆明勘测设计研究院有限公司 | Creation method, device, equipment and storage medium of library basin design curved surface model |
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