CN114595500A - Method for carrying out earth balance calculation by utilizing BIM technology - Google Patents
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Abstract
The invention discloses a method for carrying out earth balance calculation by utilizing a BIM (building information modeling) technology, belonging to the technical field of building information models. A method for carrying out earth balance calculation by utilizing BIM technology comprises the following steps: s1, collecting original coordinate data, importing Cass software, and generating a plane contour topographic map; s2, importing the plane contour topographic map into Auto CAD software, generating a three-dimensional contour topographic map with a Z value, and storing the three-dimensional contour topographic map as a 'dwg format file'; s3, importing the three-dimensional contour topographic map of the 'dwg format file' into Revit software to form an original topographic three-dimensional model; and S4, importing the plane design drawing of the 'dwg format file' into Revit software, and enabling the plane design drawing to correspond to the original terrain three-dimensional model coordinates one by one. The method is high in calculation precision, fast and simple, and repeated simulation calculation is not required to be carried out by excavating at different bottom elevations; the method has high working efficiency and is suitable for earthwork balance calculation of all civil engineering projects.
Description
Technical Field
The invention relates to the technical field of building information models, in particular to a method for carrying out earth balance calculation by utilizing a BIM (building information modeling) technology.
Background
The earth balance calculation in the current building engineering is mainly to adopt computer software to carry out earth excavation and filling balance calculation by triangular grids. The method has the disadvantages that the vertical excavation and filling calculation can be carried out only by calculating the earthwork with the same design bottom elevation in the area; for excavation areas with different bottom elevations in a foundation pit and a field area excavated by slope excavation, the earth volume of the excavation areas of the slope excavation cannot be accurately calculated; moreover, the volume of earth excavated and filled at a plurality of different bottom elevations cannot be calculated simultaneously. Meanwhile, the workload is large, calculation errors are prone to occurring, and the total earthwork balance calculation is relatively complex.
Disclosure of Invention
The invention aims to provide a method for carrying out earthwork balance calculation by utilizing a BIM (building information modeling) technology, wherein the BIM technology is utilized for carrying out earthwork balance simulation operation in a calculation region, and Revit, AutoCAD and Cass software share modeling work in different stages; leveling the earthwork of the original terrain by establishing a model and dividing regions, and performing excavation and filling calculation by software to obtain the earthwork excavation and filling data of the whole field.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for carrying out earth balance calculation by utilizing BIM technology comprises the following steps:
s1, collecting original coordinate data, importing Cass software, and generating a plane contour topographic map;
s2, importing the plane contour topographic map into Auto CAD software, generating a three-dimensional contour topographic map with a Z value, and storing the three-dimensional contour topographic map as a 'dwg format file';
s3, importing the three-dimensional contour topographic map of the 'dwg format file' into Revit software to form an original topographic three-dimensional model;
s4, importing the plane design drawing of the 'dwg format file' into Revit software, and enabling the plane design drawing to correspond to X value and Y value data of the original terrain three-dimensional model coordinate one by one;
s5, respectively carrying out foundation pit modeling on each building according to the contour line of each building in the plane design drawing;
and S6, creating a terrain detail table, and completing the calculation of the excavation and filling balance square amount of each building and the calculation of the earth balance in the whole area.
Preferably, in step S1, the method specifically includes the following steps:
s101, data acquisition:
acquiring original coordinate data of a building area by means of a GPS instrument to generate a text data file of 'txt';
wherein, collecting according to a cross section of 5-10 m; the specific cross section space is adjusted according to the topographic relief condition of the acquisition area;
s102, coordinate conversion:
carrying out coordinate conversion on the acquired data;
the method is characterized in that the method is as close to the origin of coordinates as possible so as to avoid that the construction area is too far away from the origin of coordinates, so that the software calculation time is too long and the data processing distortion is caused;
s103, data import:
importing the converted data into southern Cass mapping software to generate a planar contour topographic map with contour lines;
wherein the equal height distance is set as 0.5 m.
Preferably, in step S2, the method specifically includes the following steps:
s201, importing Auto CAD:
importing the planar contour topographic map with a coordinate system into Auto CAD software;
wherein, two software measurement units are kept as m and the precision is kept as 0.00;
deleting redundant layers, and only reserving contour line layers to reduce the occupation of data processing resources;
s202, generating a three-dimensional contour topographic map:
under the condition that the X value and the Y value of the plane coordinate are unchanged, adjusting the Z value of the contour line; and regenerating a three-dimensional contour topographic map with different Z value coordinates, and storing the three-dimensional contour topographic map as a 'dwg format file'.
Preferably, in step S3, the method specifically includes the following steps:
s301, forming an original terrain three-dimensional model:
importing the three-dimensional contour topographic map of the 'dwg format file' into Revit software;
the method comprises the following steps that an importing unit is set to be m, the importing unit is positioned to be automatic-from an original point to an original point, the importing unit is placed at a specified elevation, and an original terrain three-dimensional model with data information is generated;
wherein the designated elevation is +/-0.00 elevation after the coordinate is converted.
Preferably, in step S4, the method specifically includes the following steps:
s401, importing a construction area plane design drawing into Auto CAD:
importing a construction area plane design drawing into Auto CAD software, deleting redundant layers, and only keeping a building contour line and a building layer;
s402, generating a plane design drawing:
under the condition that the data of the X value and the Y value of the plane coordinate are not changed, the Z values of the contour lines are adjusted to be the same; regenerating a plane design drawing and storing the drawing as a 'dwg format file';
s403, importing a planar design drawing into Revit;
importing the plane design drawing of the 'dwg format file' into Revit software;
and the plane design drawing corresponds to the coordinate X value and Y value data of the three-dimensional model of the original terrain one by one.
Preferably, in step S5, the method specifically includes the following steps:
s501, staged setting:
selecting an original terrain three-dimensional model to carry out staged setting, and setting the original terrain three-dimensional model as an existing stage, which is equivalent to the original existence of the terrain model;
s502, phase setting:
no model is selected under the three-dimensional view window, phase setting is carried out, and the phase attribute is modified into a new structure;
s503, leveling the field:
copying the original terrain three-dimensional model to regenerate a newly-built terrain three-dimensional model, and leveling the field on the newly-built terrain three-dimensional model; the coordinate data of the newly-built terrain three-dimensional model is the same as that of the original terrain three-dimensional model, and the construction periods are different; the newly-built three-dimensional model of the newly-built terrain is created in the new construction period;
through Boolean operation of terrain model information at different periods, earthwork excavation and filling data of each building when the ground is leveled can be obtained;
s504, modeling a foundation pit;
building foundation pit modeling is carried out on a building in a mode of building a 'building terrace';
the method comprises the following steps of drawing the boundary of the building floor in a 'picking line' mode, and sequentially clicking the building outline lines of a imported plane design drawing to generate the building floor;
after the +/-0.00 elevation of each building is converted, adjusting the +/-0.00 elevation difference value relative to the original terrain to generate a terrace model;
s505, generating a foundation pit model general diagram;
the building terrace cuts the newly-built terrain three-dimensional model, so that the newly-built terrain three-dimensional model can dig or fill a flat field according to the contour of the building terrace; thereby, forming a foundation pit model of each building;
closing the building terrace display, and generating a general map of a building foundation pit model in the field;
s506, accounting the earthwork equilibrium volume;
and respectively naming the foundation pit models according to the buildings, and checking the earthwork equilibrium volume of the field in parts.
Preferably, in step S6, the method specifically includes the following steps:
s601, creating a terrain detail table;
pertinently extracting model data information, and combining to generate an earthwork balance list;
the earthwork detail sheet displays the excavation amount, the filling amount and the net filling amount of each building in the field, the total excavation amount, the filling amount and the total net filling amount of the whole field in parts;
wherein positive values represent net fill and negative values represent net excavation;
therefore, reliable reference data are provided for planning an earthwork balance scheme of the whole field and designing a transportation route.
Compared with the prior art, the invention provides a method for carrying out earth balance calculation by using a BIM (building information modeling) technology, which has the following beneficial effects:
1. according to the invention, through model calculation, the earthwork distribution condition of the whole construction area is rapidly mastered; and the earthwork excavation and filling quantity of each building foundation pit is calculated according to the building, thereby being beneficial to the overall planning and allocation of the earthwork in the area in the engineering construction process.
2. The method is high in calculation precision, fast and simple, and repeated simulation calculation is not required to be carried out by excavating at different bottom elevations; the method has high working efficiency and is suitable for earthwork balance calculation of all civil engineering projects.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows; and will be apparent to those skilled in the art, to a certain extent, upon a study of the following; or may be learned by the practice of the invention.
Drawings
FIG. 1 is a flow chart of the present invention.
FIG. 2 is an exemplary three-dimensional model of the original terrain.
FIG. 3 is an exemplary three-dimensional model of an original terrain importing plan drawing.
FIG. 4 is an example generated building pit model.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below.
Referring to fig. 1, a method for performing earth balance calculation using BIM technology includes the steps of:
and S1, collecting original coordinate data, importing Cass software, and generating a plane contour topographic map.
And S2, importing the plane contour topographic map into Auto CAD software, generating a three-dimensional contour topographic map with a Z value, and storing the three-dimensional contour topographic map as a 'dwg format file'.
And S3, importing the three-dimensional contour topographic map of the 'dwg format file' into Revit software to form an original topographic three-dimensional model.
And S4, importing the plane design drawing of the 'dwg format file' into Revit software, and enabling the plane design drawing to correspond to the X value and the Y value data of the original terrain three-dimensional model coordinate one by one.
And S5, respectively carrying out foundation pit modeling on each building according to the contour line of each building in the plane design drawing.
And S6, creating a terrain detail table, and completing the calculation of the excavation and filling balance square amount of each building and the calculation of the earth balance in the whole area.
In the invention, BIM technology is utilized to carry out earthwork balance simulation operation in a calculation area; revit, AutoCAD and Cass software share modeling work in different stages; leveling original terrain earthwork by regions by establishing a model; and performing excavation and filling calculation by software to obtain earth excavation and filling data of the whole field.
The method is simple, clear, visual and intuitive, and is favorable for planning and layout of the overall project scheme.
The specific embodiment of the present invention is as follows.
In the "generating a planar contour topographic map" of step S1, the method includes the steps of: data acquisition, coordinate conversion and data import.
And S101, data acquisition.
Acquiring original coordinate data of a building area by means of a GPS instrument to generate a text data file of 'txt'; wherein, the collection is carried out according to a cross section of 5-10 m.
It will be appreciated that the specific cross-sectional spacing is adjusted according to the topography of the acquisition area.
And S102, coordinate conversion.
And carrying out coordinate conversion on the acquired data.
The method is close to the coordinate origin as much as possible, so that the problem that the construction area is too far away from the coordinate origin, which causes overlong software calculation time and data processing distortion is avoided.
And S103, importing data.
Importing the converted data into southern Cass mapping software to generate a planar contour topographic map with contour lines; wherein the equal height distance is set as 0.5 m.
It will be appreciated that mapping software published by other companies may also be employed.
After the planar contour topographic map is generated, the flow proceeds to step S2.
In the step S2 "generating a three-dimensional contour topographic map", the method includes the steps of: auto CAD was introduced. And generating a three-dimensional contour topographic map.
S201, importing Auto CAD.
And importing the plane contour topographic map with a coordinate system into Auto CAD software. Wherein two software measurement units are maintained as "m" and the accuracy is "0.00". Then, deleting redundant layers and only reserving contour line layers; so as to reduce the occupation of data processing resources and avoid the overlarge occupation of the data processing resources.
And S202, generating a three-dimensional contour topographic map.
Under the condition that the X value and the Y value of the plane coordinate are unchanged, adjusting the Z value of the contour line; and regenerating a three-dimensional contour topographic map with different Z value coordinates, and storing the three-dimensional contour topographic map as a 'dwg format file'.
Through step S2, a three-dimensional contour topographic map having Z-value coordinates is obtained; then, the process proceeds to step S3, where a three-dimensional model of the original terrain is formed, including the following steps.
And S301, forming an original terrain three-dimensional model.
And importing the three-dimensional contour topographic map of the 'dwg format file' into Revit software.
The importing unit is set as m, the automatic-origin-to-origin positioning is carried out, the three-dimensional model is placed at a specified elevation, and an original terrain three-dimensional model with data information is generated.
Wherein the designated elevation is +/-0.00 elevation after the coordinate is converted.
Thereafter, in step S4, "flat design drawing" is imported; comprises the following steps.
S401, importing a construction area plane design drawing into Auto CAD.
And (4) importing the construction area plane design drawing into Auto CAD software, deleting redundant layers, and only keeping the building contour line and the building layer.
And S402, generating a plane design drawing.
Under the condition that the data of the X value and the Y value of the plane coordinate are not changed, the Z values of the contour lines are adjusted to be the same; and regenerating the plane design drawing and storing the plane design drawing as a 'dwg format file'.
And S403, importing the planar design drawing into Revit.
And importing the plane design drawing of the 'dwg format file' into Revit software.
And the plane design drawing corresponds to the coordinate X value and Y value data of the three-dimensional model of the original terrain one by one.
After a 'plane design drawing' is led in, an original terrain three-dimensional model with the plane design drawing is formed; then, the step S5 is carried out to carry out foundation pit modeling; the method comprises the following steps: the method comprises the steps of staged setting, phase setting, field leveling, foundation pit modeling, foundation pit model general diagram generation and earthwork equilibrium square amount accounting.
And S501, setting in a staged mode.
And selecting the original terrain three-dimensional model to carry out staged setting, and setting the original terrain three-dimensional model as an existing stage, which is equivalent to the original existence of the terrain model.
And S502, setting a phase.
And (4) carrying out phase setting without selecting any model under the three-dimensional view window, and modifying the phase attribute into a new structure. It is understood that any operations done at a later time are completed during the "new build" period.
S503, leveling the field.
Copying the original terrain three-dimensional model to regenerate a newly-built terrain three-dimensional model, and leveling the field on the newly-built terrain three-dimensional model; the coordinate data of the newly-built three-dimensional model of the terrain is the same as that of the original three-dimensional model of the terrain, and the construction period is different; the regenerated new terrain three-dimensional model is created during the "new construction" period.
And through Boolean operation of topographic model information in different periods, earthwork excavating and filling data of each building when the land is leveled can be obtained.
And S504, modeling a foundation pit.
And carrying out foundation pit modeling on the building in a mode of building a building terrace.
The building floor boundary is drawn in a 'picking line' mode, and the building outline of the imported plane design drawing is sequentially clicked to generate the building floor.
And after the +/-0.00 elevation of each building is converted, adjusting the +/-0.00 elevation difference value relative to the original terrain to generate a terrace model.
And S505, generating a foundation pit model general diagram.
The building terrace cuts the newly-built terrain three-dimensional model, so that the newly-built terrain three-dimensional model can dig or fill a flat field according to the contour of the building terrace; thereby, each building pit model is formed.
And closing the building terrace display, and generating a general map of the building foundation pit model in the field.
And S506, accounting the earthwork equilibrium volume.
And respectively naming the foundation pit models according to the buildings, and checking the earthwork equilibrium volume of the field in parts.
Thereafter, the process proceeds to "create a terrain profile" in step S6, which includes the following steps.
And S601, creating a terrain detail table.
And (4) pertinently extracting model data information, and combining to generate an earthwork balance list.
The earthwork detail list part displays the excavation amount, the filling amount and the net filling amount of each building in the field, and the total excavation amount, the filling amount and the total net filling amount of the whole field.
Wherein positive values represent net fill and negative values represent net cut.
Therefore, reliable reference data are provided for planning an earthwork balance scheme of the whole field and designing a transportation route.
Referring to fig. 2, 3 and 4, a specific example is shown; according to the scheme, the earthwork excavation and filling data of different elevations of the whole construction area, the flat earthwork requirement and the flat earthwork abandon amount of the foundation pit of a single building and the total requirement and the total abandon amount of the whole construction area are obtained.
According to the invention, BIM technology is utilized to carry out earthwork balance simulation operation in a calculation region, software such as Revit, AutoCAD and Cass shares modeling work in different stages, original terrain earthwork is leveled in different regions by establishing a model, and excavation and filling calculation is carried out by the software, so that earthwork excavation and filling data of the whole field area are obtained. The method is simple and clear, visual and visual, and is beneficial to the planning and layout of the overall project scheme.
According to the method, through model calculation, the earthwork distribution condition of the whole construction area is rapidly mastered; the earthwork excavation and filling quantity of each building foundation pit is calculated according to the building, so that the total planning and allocation of the earthwork in the area in the engineering construction process are facilitated; the method is high in calculation precision, fast and simple, and repeated simulation calculation is not required to be carried out by excavation of different bottom elevations; the method has high working efficiency and is suitable for earthwork balance calculation of all civil engineering projects.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A method for carrying out earth balance calculation by utilizing BIM technology is characterized by comprising the following steps:
s1, collecting original coordinate data, importing Cass software, and generating a plane contour topographic map;
s2, importing the plane contour topographic map into Auto CAD software, generating a three-dimensional contour topographic map with a Z value, and storing the three-dimensional contour topographic map as a 'dwg format file';
s3, importing the three-dimensional contour topographic map of the 'dwg format file' into Revit software to form an original topographic three-dimensional model;
s4, importing the plane design drawing of the 'dwg format file' into Revit software, and enabling the plane design drawing to correspond to X value and Y value data of the original terrain three-dimensional model coordinate one by one;
s5, respectively carrying out foundation pit modeling on each building according to the contour line of each building in the plane design drawing;
and S6, creating a terrain detail table, and completing the calculation of the excavation and filling balance square amount of each building and the calculation of the earth balance in the whole area.
2. The method of claim 1, wherein the step S1 specifically comprises the following steps:
s101, data acquisition:
acquiring original coordinate data of a building area by means of a GPS instrument to generate a text data file of 'txt';
wherein, collecting according to a cross section of 5-10 m; the specific cross section space is adjusted according to the topographic relief condition of the acquisition area;
s102, coordinate conversion:
carrying out coordinate conversion on the acquired data;
the method is characterized in that the method is as close to the origin of coordinates as possible so as to avoid that the construction area is too far away from the origin of coordinates, so that the software calculation time is too long and the data processing distortion is caused;
s103, data import:
importing the converted data into southern Cass mapping software to generate a planar contour topographic map with contour lines;
wherein the equal height distance is set as 0.5 m.
3. The method of claim 2, wherein the step S2 specifically comprises the following steps:
s201, importing Auto CAD:
importing the planar contour topographic map with a coordinate system into Auto CAD software;
wherein, two software measurement units are kept as m and the precision is kept as 0.00;
deleting redundant layers, and only reserving contour line layers to reduce the occupation of data processing resources;
s202, generating a three-dimensional contour topographic map:
under the condition that the X value and the Y value of the plane coordinate are unchanged, adjusting the Z value of the contour line; and regenerating a three-dimensional contour topographic map with different Z value coordinates, and storing the three-dimensional contour topographic map as a 'dwg format file'.
4. The method of claim 3, wherein the step S3 specifically comprises the following steps:
s301, forming an original terrain three-dimensional model:
importing the three-dimensional contour topographic map of the 'dwg format file' into Revit software;
the method comprises the following steps that an importing unit is set to be m, the importing unit is positioned to be automatic-from an original point to an original point, the importing unit is placed at a specified elevation, and an original terrain three-dimensional model with data information is generated;
wherein the designated elevation is +/-0.00 elevation after the coordinate is converted.
5. The method of claim 4, wherein the step S4 specifically comprises the following steps:
s401, importing a construction area plane design drawing into Auto CAD:
importing a construction area plane design drawing into Auto CAD software, deleting redundant layers, and only keeping a building contour line and a building layer;
s402, generating a plane design drawing:
under the condition that the data of the X value and the Y value of the plane coordinate are not changed, the Z values of the contour lines are adjusted to be the same; regenerating a plane design drawing and storing the drawing as a 'dwg format file';
s403, importing a planar design drawing into Revit;
importing the plane design drawing of the 'dwg format file' into Revit software;
and the plane design drawing corresponds to the coordinate X value and Y value data of the three-dimensional model of the original terrain one by one.
6. The method of claim 5, wherein the step S5 specifically comprises the following steps:
s501, staged setting:
selecting an original terrain three-dimensional model to carry out staged setting, and setting the original terrain three-dimensional model as an existing stage, which is equivalent to the original existence of the terrain model;
s502, phase setting:
no model is selected under the three-dimensional view window, phase setting is carried out, and the phase attribute is modified into a new structure;
s503, leveling the field:
copying the original terrain three-dimensional model to regenerate a newly-built terrain three-dimensional model, and leveling the field on the newly-built terrain three-dimensional model; the coordinate data of the newly-built three-dimensional model of the terrain is the same as that of the original three-dimensional model of the terrain, and the construction period is different; the newly-built three-dimensional model of the newly-built terrain is created in the new construction period;
through Boolean operation of topographic model information in different periods, earthwork excavation and filling data of each building when the land is leveled can be obtained;
s504, modeling a foundation pit;
building foundation pit modeling is carried out on a building in a mode of building a building terrace;
the method comprises the following steps of drawing the boundary of the building floor in a 'picking line' mode, and sequentially clicking the building outline lines of a imported plane design drawing to generate the building floor;
after the +/-0.00 elevation of each building is converted, adjusting the +/-0.00 elevation difference value relative to the original terrain to generate a terrace model;
s505, generating a foundation pit model general diagram;
the building terrace cuts the newly-built terrain three-dimensional model, so that the newly-built terrain three-dimensional model can dig or fill a flat field according to the contour of the building terrace; thereby, forming a foundation pit model of each building;
closing the building terrace display, and generating a general map of a building foundation pit model in the field;
s506, accounting the earthwork equilibrium volume;
and respectively naming the foundation pit models according to the buildings, and checking the earthwork equilibrium volume of the field in parts.
7. The method of claim 6, wherein in step S6, the method specifically comprises the following steps:
s601, creating a terrain detail table;
pertinently extracting model data information, and combining to generate an earthwork balance list;
the earthwork detail sheet displays the excavation amount, the filling amount and the net filling amount of each building in the field, the total excavation amount, the filling amount and the total net filling amount of the whole field in parts;
wherein positive values represent net fill and negative values represent net excavation;
therefore, reliable reference data are provided for planning an earthwork balance scheme of the whole field and designing a transportation route.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106446349A (en) * | 2016-08-31 | 2017-02-22 | 中国冶集团有限公司 | Method for calculating in-place amortization of earthwork based on revit software |
| KR101767027B1 (en) * | 2016-05-30 | 2017-08-23 | 한양대학교 산학협력단 | Method and system for providing augmented reality of earthwork design |
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