CN111651823A - BIM technology-based foundation pit earth excavation amount calculation method - Google Patents
BIM technology-based foundation pit earth excavation amount calculation method Download PDFInfo
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- CN111651823A CN111651823A CN202010505881.8A CN202010505881A CN111651823A CN 111651823 A CN111651823 A CN 111651823A CN 202010505881 A CN202010505881 A CN 202010505881A CN 111651823 A CN111651823 A CN 111651823A
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 38
- 238000004364 calculation method Methods 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/10—Numerical modelling
Abstract
The invention relates to a foundation pit earthwork excavation amount calculation method based on a BIM technology, which comprises the following steps: providing a topographic drawing of an area to be constructed, and importing the topographic drawing into BIM software to form a topographic model; providing a structural drawing to be constructed, and drawing and forming a structural model on the basis of a terrain model according to the structural drawing; and comparing and analyzing the structural model and the topographic model by using BIM software to calculate the earth excavation amount. The method effectively solves the problem of difficulty in calculation of the earth volume of the foundation pit, is suitable for the construction working condition of the foundation pit with a complex structure, can accurately reflect the situation after the foundation pit is excavated, and has high calculation efficiency and low cost.
Description
Technical Field
The invention relates to the field of building construction, in particular to a foundation pit earthwork excavation amount calculation method based on a BIM technology.
Background
In the foundation pit construction, the work of trenching, filling soil and the like is often required, so that the calculation of the earth volume of the area to be constructed is particularly important. The existing earth excavation is generally obtained by formula calculation according to CAD drawings and excavation experiences of constructors, but the method is not suitable for foundation pit construction with a complex structure, the calculation progress is low, the situation after the foundation pit excavation cannot be accurately reflected, the calculation steps are complex, the cost is high, and the efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a foundation pit earthwork excavation amount calculation method based on a BIM technology, solves the problem of difficulty in foundation pit earthwork calculation, is suitable for foundation pit construction working conditions with complex structures, can accurately reflect the situation after foundation pit excavation, and is high in calculation efficiency and low in cost.
The technical scheme for realizing the purpose is as follows:
the invention provides a BIM technology-based foundation pit earthwork excavation amount calculation method, which comprises the following steps:
s11, providing a topographic drawing of an area to be constructed, and guiding the topographic drawing into BIM software to form a topographic model;
s12, providing a structural drawing to be constructed, and drawing and forming a structural model on the basis of the terrain model according to the structural drawing;
and S13, comparing and analyzing the structural model and the topographic model by utilizing BIM software to calculate the earth excavation quantity.
The invention adopts a BIM technology-based foundation pit earthwork excavation amount calculation method, a topographic drawing is guided into BIM software to form a topographic model, and then a structural model is drawn on the basis of the topographic model, so that the BIM software is used for comparing and analyzing the structural model and the topographic model, and the corresponding earthwork excavation amount is calculated, the problem of difficulty in calculation of the foundation pit earthwork is solved, the method is suitable for foundation pit construction working conditions with complex structures, can accurately reflect the situation after foundation pit excavation, and is high in calculation efficiency and low in cost.
The invention further improves the calculation method of the excavation amount of the foundation pit earth based on the BIM technology, wherein when the topographic drawing is guided into the BIM software, the method further comprises the following steps:
and retaining elevation point information on the topographic drawing, cleaning other information, drawing the topographic drawing to form a CAD file with the elevation point information, and importing the CAD file into BIM software to form a topographic model.
The invention further improves the calculation method of the foundation pit earth excavation quantity based on the BIM technology, when a structural model is drawn and formed on the basis of a terrain model, the method also comprises the following steps:
and selecting a plurality of reference points on the structure drawing paper, and correspondingly drawing the structure model on the terrain model according to the reference points.
The invention further improves the foundation pit earth excavation amount calculation method based on the BIM technology, and the method also comprises the following steps:
when layered excavation is needed, a plurality of layers of structure models are formed by drawing layer by layer from the bottommost layer, and the terrain model and the structure model are compared by utilizing BIM software so as to calculate and obtain the earth excavation amount of each layer of structure model.
The method for calculating the excavation amount of the foundation pit earthwork based on the BIM technology is further improved in that the BIM software is Autodesk Revit software.
Drawings
FIG. 1 is a flow chart of a method for calculating the excavation amount of the foundation pit earth based on the BIM technology.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the invention provides a foundation pit earthwork excavated volume calculation method based on a BIM technology, a terrain drawing is guided into BIM software to form a terrain model, and then a structure model is drawn on the basis of the terrain model, so that the structure model and the terrain model are contrastively analyzed by using the BIM software, and the corresponding earthwork excavated volume is calculated, thereby solving the problem of difficulty in calculating the foundation pit earthwork volume, being suitable for the foundation pit construction working condition with a complex structure, being capable of accurately reflecting the situation after the foundation pit excavation, and having high calculation efficiency and low cost. The method for calculating the excavation amount of the foundation pit based on the BIM technology is described below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for calculating an excavated volume of a foundation pit based on a BIM technique according to the present invention. The method for calculating the excavation amount of the foundation pit based on the BIM technique according to the present invention will be described with reference to fig. 1.
As shown in fig. 1, the method for calculating the excavation amount of the foundation pit based on the BIM technology of the present invention includes the following steps:
step S11, providing a topographic drawing of the area to be constructed, and guiding the topographic drawing into BIM software to form a topographic model; then, step S12 is executed
Step S12, providing a structural drawing to be constructed, and drawing and forming a structural model on the basis of the terrain model according to the structural drawing; then, step S13 is executed
And S13, comparing and analyzing the structural model and the terrain model by utilizing BIM software to calculate the earth excavation amount.
Preferably, the BIM software is Autodesk Revit software.
As a preferred embodiment of the present invention, when importing the topographic drawing into the BIM software, the method further includes:
and retaining elevation point information on the topographic drawing, cleaning other information, drawing the topographic drawing to form a CAD file with the elevation point information, and importing the CAD file into BIM software to form a topographic model.
Further, when the structure model is drawn and formed on the basis of the terrain model, the method further comprises the following steps:
and selecting a plurality of reference points on the structure drawing paper, and correspondingly drawing the structure model on the terrain model according to the reference points.
Specifically, still include:
when layered excavation is needed, a plurality of layers of structure models are formed by drawing layer by layer from the bottommost layer, and the terrain model and the structure model are compared by utilizing BIM software so as to calculate and obtain the earth excavation amount of each layer of structure model.
The specific embodiment of the invention is as follows:
processing a terrain drawing of a to-be-constructed area collected in advance, reserving elevation information on the terrain drawing, and removing and drawing the rest information to form a CAD file;
importing the CAD file into BIM software to generate a terrain model;
drawing a structural model on the basis of a topographic model by utilizing the earthwork leveling and floor functions of BIM software according to a structural drawing, selecting a plurality of reference points on structural drawing paper during drawing, drawing the structural model on the topographic model according to the reference points, and drawing a plurality of layers of structural models layer by layer from the bottommost layer when layered excavation is required;
taking the Autodesk Revit software as an example, selecting a command of ' leveling area ' in a volume and field option card, clicking ' creating a new terrain surface completely identical to the surface of the existing terrain ' by a pop-up dialog box, clicking ' checking the original terrain to check, considering the gradient given by a structural drawing and the height of a reference point at the position of a bottom plate when drawing the terraces, drawing a plurality of terraces, wherein the new terrain is ' new structure ', clicking ' new structure ' terrain, automatically selecting the volume of earthwork between ' new structure ' and ' existing ', displaying the values of ' cut/fill ', ' section ' on a left attribute column, namely the volume of ' fill clearance ', ' fill ', and ' excavate ', and directly displaying the excavation value of the earthwork;
BIM software automatically analyzes the earthwork amount between the terrain model and the structure model and displays the excavated volume of the earthwork.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (5)
1. A foundation pit earth excavation amount calculation method based on a BIM technology is characterized by comprising the following steps:
s11, providing a topographic drawing of an area to be constructed, and guiding the topographic drawing into BIM software to form a topographic model;
s12, providing a structural drawing to be constructed, and drawing and forming a structural model on the basis of the terrain model according to the structural drawing;
and S13, comparing and analyzing the structural model and the topographic model by utilizing the BIM software to calculate the earth excavation amount.
2. The method for calculating the earthwork of the foundation pit based on the BIM technique as claimed in claim 1, wherein when the topographic drawing is introduced into the BIM software, the method further comprises:
and retaining elevation point information on the topographic drawing and cleaning other information, drawing the topographic drawing to form a CAD file with the elevation point information, and importing the CAD file into the BIM software to form the topographic model.
3. The method for calculating the earth excavation volume of a foundation pit based on the BIM technique as claimed in claim 1, wherein when the structural model is formed by drawing on the basis of the terrain model, the method further comprises:
and selecting a plurality of reference points on the structural drawing, and correspondingly drawing the topographic model according to the reference points to form the structural model.
4. The BIM technology-based foundation pit earth excavation calculation method of claim 3, further comprising:
when layered excavation is needed, a plurality of layers of structural models are formed by drawing layer by layer from the bottommost layer, and the BIM software is utilized to compare the terrain model with the structural model so as to calculate and obtain the earth excavation amount of each layer of the structural model.
5. The method for calculating the earthwork excavation amount of the foundation pit based on the BIM technology as claimed in claim 1, wherein the BIM software is Autodesk Revit software.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112329100A (en) * | 2020-10-30 | 2021-02-05 | 中铁第四勘察设计院集团有限公司 | Three-dimensional modeling method for urban rail transit line environment |
| CN113673013A (en) * | 2021-08-10 | 2021-11-19 | 中国建筑第八工程局有限公司 | Pile cap elevation calculation method and system based on BIM technology |
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| KR101695914B1 (en) * | 2016-06-23 | 2017-01-16 | 부산대학교산학협력단 | Excavator 3-dimensional earthwork bim system for providing realtime shape information of excavator in executing earthwork construction |
| CN106934111A (en) * | 2017-02-20 | 2017-07-07 | 四川隧唐科技股份有限公司 | A kind of engineering tri-dimensional entity modelling method and its model building device based on terrain data |
| CN110968904A (en) * | 2019-11-12 | 2020-04-07 | 广州市第一市政工程有限公司 | BIM technology-based method for calculating shape and earth volume of earth excavation side slope |
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- 2020-06-05 CN CN202010505881.8A patent/CN111651823A/en active Pending
Patent Citations (3)
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| KR101695914B1 (en) * | 2016-06-23 | 2017-01-16 | 부산대학교산학협력단 | Excavator 3-dimensional earthwork bim system for providing realtime shape information of excavator in executing earthwork construction |
| CN106934111A (en) * | 2017-02-20 | 2017-07-07 | 四川隧唐科技股份有限公司 | A kind of engineering tri-dimensional entity modelling method and its model building device based on terrain data |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112329100A (en) * | 2020-10-30 | 2021-02-05 | 中铁第四勘察设计院集团有限公司 | Three-dimensional modeling method for urban rail transit line environment |
| CN113673013A (en) * | 2021-08-10 | 2021-11-19 | 中国建筑第八工程局有限公司 | Pile cap elevation calculation method and system based on BIM technology |
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Application publication date: 20200911 |