CN117131582A - Rapid construction method and system for complex foundation pit engineering model - Google Patents
Rapid construction method and system for complex foundation pit engineering model Download PDFInfo
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 230000004927 fusion Effects 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000002689 soil Substances 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 20
- 238000009412 basement excavation Methods 0.000 claims description 10
- 239000002344 surface layer Substances 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 6
- 238000009933 burial Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 description 3
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- 238000010008 shearing Methods 0.000 description 1
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Abstract
The invention discloses a rapid construction method of a complex foundation pit engineering model, which comprises the following steps: s1, acquiring a CAD drawing, and acquiring component information data based on the CAD drawing; s2, creating a foundation pit group by taking a metric conventional model as a group template; s3, loading the created foundation pit group into the project model, and adjusting the position and elevation according to the datum point; s4, optimizing a foundation pit scheme, and generating a final foundation pit model; in step S2, creating a foundation pit group by using a metric conventional model as a group template, including: s21, creating a soil covering entity layer in an entity stretching mode; s22, sequentially creating a hollow model in a hollow fusion mode on the soil covering entity layer; s23, processing complex node relations by using Boolean operation to form a combined foundation pit in a complex joint form; s24, completing the creation of the whole foundation pit group model. The foundation slab component creation method simplifies and merges the foundation slab component creation modes, so that the creation standards are unified, the creation speed of the foundation pit model is greatly increased, and meanwhile, the accuracy is improved.
Description
Technical Field
The invention relates to the technical field of building modeling, in particular to a rapid construction method and system of a complex foundation pit engineering model.
Background
In order to promote construction quality of building engineering and promote orderly construction activities in complex environments, more and more projects, particularly large public buildings, BIM technology is introduced in a foundation pit excavation stage, a visual foundation pit model is established in advance aiming at complex foundation pit forms, and effective means are provided for project implementation and management and control. However, the traditional complex foundation pit engineering modeling mode cannot directly generate an engineering integral foundation pit model, foundation models such as a water collection pit and an elevator foundation pit are required to be created, and then a plate model is created and overlapped with the foundation models to form the integral foundation pit model through shearing. The modeling method has the defects that the modeling method cannot be fast and accurate, and a great deal of effort is required to build, study and compare complex foundation parts such as the joint-row water pits and the like, so that errors can be caused to a great extent due to deviation compared with the modeling method which relies on the technical experience and the picture recognition level of modeling staff. In the process, a large number of operations which are required to be highly concentrated and tedious are generated, so that time and energy are consumed, and the on-site construction cannot be guided by a model with high efficiency and precision. Therefore, a method for realizing rapid modeling of complex foundation pit engineering is needed to solve the above-mentioned shortcomings in the prior art.
Disclosure of Invention
The invention aims to provide a rapid construction method and a rapid construction system for a complex foundation pit engineering model, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the invention provides a rapid construction method of a complex foundation pit engineering model, comprising the following steps:
s1, acquiring a CAD drawing, and acquiring component information data based on the CAD drawing;
s2, creating a foundation pit group by taking a metric conventional model as a group template;
s3, loading the created foundation pit group into the project model, and adjusting the position and elevation according to the datum point;
s4, optimizing a foundation pit scheme, and generating a final foundation pit model;
in step S2, creating a foundation pit group by using a metric conventional model as a group template, including:
s21, creating a soil covering entity layer in an entity stretching mode;
s22, sequentially creating a hollow model in a hollow fusion mode on the soil covering entity layer;
s23, processing complex node relations by using Boolean operation to form a combined foundation pit in a complex joint form;
s24, completing the creation of the whole foundation pit group model.
In a preferred embodiment, in step S21, the range of the solid layer of the covering soil is the excavation range of the whole foundation pit of the project, and the thickness of the solid layer of the covering soil is greater than the depth of the foundation burial, wherein the constraint elevation of the stretching start point is set to be the elevation of the whole foundation surface layer of the project in the drawing, and the constraint elevation of the stretching end point is set to be a non-fixed value but lower than the lowest foundation elevation in the drawing, so as to form the solid layer of the covering soil.
In a preferred embodiment, in step S22, a hollow model is created in a hollow fusion manner in sequence on the earth-covered solid layer, including:
s221, creating a pit mouth by using a mode of creating hollow fusion of a hollow shape to form a foundation pit;
s222, drawing a bottom contour, and taking the lower pit mouth range of any independent foundation, water collection pit or elevator shaft in the drawing as the bottom contour;
s223, drawing a top contour, and taking the upper pit mouth range of any independent foundation, water collection pit or elevator shaft in the drawing as the top contour;
s223, setting the first end point constraint elevation of the hollow model as the elevation height of the lower pit mouth of the independent foundation, and setting the second end point constraint elevation of the hollow model as the elevation height of the foundation surface layer, so as to finish drawing of the independent foundation pit;
s224, drawing other foundation bedplate component models sequentially, wherein the drawing comprises the following steps:
elevator shaft: the elevator shaft drawing is completed one by using a mode of creating hollow fusion of hollow shapes;
and (3) collecting pit: and (3) completing sump pit drawing one by using a mode of creating hollow fusion of the hollow shape.
In a preferred embodiment, in step S23, complex node relationships are processed by boolean operations to form a complex joint form of the joint foundation pit, including: and carrying out Boolean operation on the collision problems of intersection, overlapping and concave-convex of the patterns to form a combined foundation pit in a complex intersection form, wherein the combined foundation pit form comprises a plurality of independent foundations, water collecting pits and elevator pit groove forms with different depths in an intersection relation, and pit groove forms at the variable elevation position of the raft plate, and pit groove forms with overlapping positions of the temperature telescopic post-pouring belt and the sedimentation post-pouring belt.
In a preferred embodiment, in step S1, acquiring a CAD drawing and acquiring the component information data based on the CAD drawing includes: and identifying the outline range of each component of the foundation slab, accurately reading the elevation information of the upper and lower pits and the change positions of all the elevations, and identifying the outline range lines of the upper pit and the lower pit.
In a preferred embodiment, in step S3, loading the foundation pit family into the project model, and adjusting the position and elevation according to the reference point, including: after the foundation pit group is created, the foundation pit group is loaded into a project model, the foundation pit group is placed according to the elevation and the axis position of the foundation pit in the drawing, elevation information of each position is directly read from the model, and the overall foundation pit shape of the engineering is visualized.
In a preferred embodiment, in step S4, the foundation pit scheme is optimized, and a final foundation pit model is generated, including: and checking the accuracy of the foundation pit according to the design drawing, optimizing the intersection relation and data of the existing foundation pit, adding dimension marking and elevation information according to engineering requirements after optimizing the foundation pit scheme, and generating a final foundation pit model to guide construction.
The invention also provides a rapid construction system of the complex foundation pit engineering model, which comprises the following steps:
the data acquisition unit is used for acquiring CAD drawings and acquiring component information data based on the CAD drawings;
the foundation pit group creation unit is used for creating a foundation pit group by taking a metric conventional model as a group template;
the foundation pit model creation unit is used for loading the created foundation pit group into the project model and adjusting the position and elevation according to the datum point;
the foundation pit scheme optimizing unit is used for optimizing a foundation pit scheme and generating a final foundation pit model;
the method for creating the foundation pit group by using the metric conventional model as the group template comprises the following steps:
creating a soil-covered solid layer in a solid stretching mode;
sequentially creating a hollow model in a hollow fusion mode on the earthing solid layer;
processing complex node relations by using Boolean operation to form a combined foundation pit in a complex joint form;
and (5) completing the creation of the integral foundation pit group model.
In a preferred embodiment, the hollow model is created in a hollow fusion mode sequentially on the soil covering entity layer, and the method comprises the following steps:
creating a pit mouth by using a mode of creating hollow fusion of a hollow shape to form a foundation pit;
drawing a bottom contour, and taking the pit opening range of any independent foundation, water collection pit or elevator shaft in the drawing as the bottom contour;
drawing a top outline, and taking the upper pit mouth range of any independent foundation, water collection pit or elevator shaft in the drawing as the top outline;
setting the first end constraint elevation of the hollow model as the elevation height of the lower pit mouth of the independent foundation, and setting the second end constraint elevation of the hollow model as the elevation height of the foundation surface layer, so as to finish the drawing of the independent foundation pit;
drawing of other foundation mat component models is completed in sequence, including:
elevator shaft: the elevator shaft drawing is completed one by using a mode of creating hollow fusion of hollow shapes;
and (3) collecting pit: and (3) completing sump pit drawing one by using a mode of creating hollow fusion of the hollow shape.
In a preferred embodiment, the complex node relationship is processed by using boolean operations to form a complex joint form of the joint foundation pit, which includes: and carrying out Boolean operation on the collision problems of intersection, overlapping and concave-convex of the patterns to form a combined foundation pit in a complex intersection form, wherein the combined foundation pit form comprises a plurality of independent foundations, water collecting pits and elevator pit groove forms with different depths in an intersection relation, and pit groove forms at the variable elevation position of the raft plate, and pit groove forms with overlapping positions of the temperature telescopic post-pouring belt and the sedimentation post-pouring belt.
Compared with the prior art, the invention has the beneficial effects that:
1. in the traditional modeling mode, an independent foundation is created by adopting a system family, and the type parameters of each part are required to be set according to the detailed profile of the independent foundation; the water pit is created by adopting a self-building group, the self-building group based on the floor slab is created according to a drawing, and then the self-building group is loaded into projects one by one and placed at corresponding positions; the elevator shaft is created by adopting a floor slab and wall mode. Therefore, the creation modes are different, the creation standard is not uniform, the creation is complicated, certain data processing is required to be manually performed, errors are easy to occur in the processing process, the difficulty of processing complex combined foundation pit data is doubled, and errors in the whole form of the combined foundation pit are often caused by one data processing error. According to the method, a traditional modeling thought is overturned, the earth covering entity layer is firstly created, then the hollow model is directly created to form the foundation pit, meanwhile, complex node relations including the problems of graph intersection, overlapping, concave-convex and the like can be automatically processed through Boolean operation, the modeling mode simplifies and combines the creation modes of the foundation slab components, so that the creation standard is unified, the creation speed of the foundation pit model is greatly increased, the link of manually processing combined foundation pit data is omitted, the error rate is reduced, the accuracy is improved, and the method has good popularization.
2. The establishment process of the invention does not need to consider the slope form, accurately draws the outline of the bottom of the pit and the top of the pit according to the plane drawing, and can automatically form the correct slope form by inputting the correct relative height difference. Compared with the traditional modeling mode, each foundation slab component needs to be processed independently according to a detailed profile diagram to carry out 45-degree, 60-degree and 90-degree slope release, the creation difficulty is remarkably reduced, a more effective technical means is provided for implementation management and control of projects at the stage, and the aims of zero reworking, high efficiency and low cost of a foundation pit engineering construction site are achieved.
Drawings
FIG. 1 is a flow chart of a method for quickly constructing a complex foundation pit engineering model according to a preferred embodiment of the present invention.
Fig. 2 is a flow chart of foundation pit creation according to a preferred embodiment of the present invention.
Fig. 3 is a schematic diagram showing a partial foundation pit cluster model generation and decomposition according to a preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. Embodiments of the present invention are intended to be within the scope of the present invention as defined by the appended claims.
Example 1
As shown in fig. 1-2, the method for quickly constructing the complex foundation pit engineering model according to the preferred embodiment of the invention comprises the following steps:
and S1, acquiring a CAD drawing, and acquiring component information data based on the CAD drawing.
Specifically, in step S1, a CAD drawing is obtained, and component information data is obtained based on the CAD drawing, including: and identifying the outline range of each component of the foundation slab, accurately reading the elevation information of the upper and lower pits and the change positions of all the elevations, and identifying the outline range lines of the upper pit and the lower pit.
And S2, creating a foundation pit group by using a metric conventional model as a group template.
In step S2, a foundation pit group is created by using a metric conventional model as a group template, and the method comprises the following steps:
and S21, creating a soil covering solid layer in a solid stretching mode. Specifically, the range of the earthing entity layer is the whole foundation pit excavation range of engineering, and the thickness of the earthing entity layer is greater than the foundation burial depth. Setting the constraint elevation of the stretching starting point as the elevation of the whole engineering foundation surface layer in the drawing, and setting the constraint elevation of the stretching end point as a non-fixed value, but lower than the lowest foundation elevation in the drawing, so as to form the earthing entity layer.
And S22, sequentially creating a hollow model on the earth covering entity layer in a hollow fusion mode to form a foundation pit. Specifically, step S22 includes:
step S221, creating a pit mouth by using a mode of creating hollow fusion of a hollow shape to form a foundation pit;
step S222, drawing a bottom contour, and taking the pit mouth range of any independent foundation, water collection pit or elevator shaft in the drawing as the bottom contour;
step S223, drawing a top outline, and taking the upper pit mouth range of any independent foundation, water collection pit or elevator shaft in the drawing as the top outline;
step S223, setting the first end point constraint elevation of the hollow model as the elevation height of the lower pit mouth of the independent foundation, and setting the second end point constraint elevation of the hollow model as the elevation height of the foundation surface layer, so as to finish drawing of the independent foundation pit;
step S224, sequentially completing drawing of other foundation mat component models, including:
elevator shaft: the elevator shaft drawing is completed one by using a mode of creating hollow fusion of hollow shapes;
and (3) collecting pit: and (3) completing sump pit drawing one by using a mode of creating hollow fusion of the hollow shape.
And S23, processing the complex node relation by using Boolean operation to form a combined foundation pit in a complex joint form. Specifically, step S23 includes: and carrying out Boolean operation on the collision problems of intersection, overlapping and concave-convex of the patterns to form a combined foundation pit in a complex intersection form, wherein the combined foundation pit form comprises a plurality of independent foundations, water collection pits and elevator pit groove forms with intersection relations at different depths, the pit groove form at the elevation of the raft plate, the pit groove form with overlapping parts of the temperature telescopic post-pouring belt and the sedimentation post-pouring belt, and the like.
And step S24, completing the creation of the whole foundation pit group model.
In order to facilitate understanding of the model generation principle, the generation and decomposition of the local foundation pit group model in this embodiment is shown in fig. 3, and specifically includes the following contents:
(1) local earthing physical layer: and creating according to the elevation of the drawing.
(2) Independent foundation pit: and the pit mouth, elevation and pit mouth depth created by the hollow model are directly read from the drawing.
(3) Hollow model: and sequentially creating hollow models to form three interactive pits.
(4) And (3) combining the foundation pit: and forming a combined foundation pit in a complex joint form after Boolean operation.
And S3, loading the created foundation pit group into the project model, and adjusting the position and elevation according to the datum point. Specifically, step S3 includes: after the foundation pit group is created, loading the foundation pit group into a project model, and placing the foundation pit group according to the elevation and the axis position of the foundation pit in the drawing, so that the foundation pit model is basically created. The elevation information of each position is directly read from the model, the form of the whole foundation pit of the engineering is known in advance by utilizing the visual characteristics of the model, and an effective means is provided for implementing and controlling the engineering at the stage.
And S4, optimizing the foundation pit scheme, and generating a final foundation pit model. Specifically, step S4 includes: and checking the accuracy of the foundation pit according to the design drawing, optimizing the intersection relation and data of the existing foundation pit, and adding dimension marking and elevation information according to engineering requirements after optimizing the foundation pit scheme to generate a final foundation pit model. Because the two-dimensional drawing cannot intuitively reflect the joint foundation pit joint form, the foundation pit scheme needs to be optimized before the construction stage is implemented, the problem can be solved by accurately creating the foundation pit model, the difficulty is reduced again by directly optimizing the scheme in the model, and the shape of the optimized joint foundation pit is clear at a glance. In addition, the accurate foundation pit excavation drawing can be provided according to project actual demands, and the foundation pit excavation drawing is used for guiding construction to achieve the purpose of accurate excavation.
Example 2
The invention also provides a rapid construction system of the complex foundation pit engineering model, which comprises the following steps: the system comprises a data acquisition unit, a foundation pit family creation unit, a foundation pit model creation unit and a foundation pit scheme optimization unit. Specific:
the data acquisition unit is used for acquiring a CAD drawing and acquiring component information data based on the CAD drawing;
the foundation pit group creation unit is used for creating a foundation pit group by taking a metric conventional model as a group template;
the foundation pit model creation unit is used for loading the created foundation pit group into the project model and adjusting the position and elevation according to the datum point;
the foundation pit scheme optimizing unit is used for optimizing the foundation pit scheme and generating a final foundation pit model.
The method for acquiring the CAD drawing and the component information data based on the CAD drawing comprises the following steps: and identifying the outline range of each component of the foundation slab, accurately reading the elevation information of the upper and lower pits and the change positions of all the elevations, and identifying the outline range lines of the upper pit and the lower pit.
Further, creating a foundation pit cluster for a cluster template with a metric conventional model, including: creating a soil-covered solid layer in a solid stretching mode; sequentially creating a hollow model in a hollow fusion mode on the earthing solid layer; processing complex node relations by using Boolean operation to form a combined foundation pit in a complex joint form; and (5) completing the creation of the integral foundation pit group model.
Further, the hollow model is created in the earthing solid layer in sequence in a hollow fusion mode, and the method comprises the following steps: creating a pit mouth by using a mode of creating hollow fusion of a hollow shape to form a foundation pit; drawing a bottom contour, and taking the pit opening range of any independent foundation, water collection pit or elevator shaft in the drawing as the bottom contour; drawing a top outline, and taking the upper pit mouth range of any independent foundation, water collection pit or elevator shaft in the drawing as the top outline; setting the first end constraint elevation of the hollow model as the elevation height of the lower pit mouth of the independent foundation, and setting the second end constraint elevation of the hollow model as the elevation height of the foundation surface layer, so as to finish the drawing of the independent foundation pit; drawing of other foundation mat component models is completed in sequence, including:
elevator shaft: the elevator shaft drawing is completed one by using a mode of creating hollow fusion of hollow shapes;
and (3) collecting pit: and (3) completing sump pit drawing one by using a mode of creating hollow fusion of the hollow shape.
Further, the complex node relation is processed by using boolean operation to form a complex joint foundation pit in a complex joint form, which comprises: and carrying out Boolean operation on the collision problems of intersection, overlapping and concave-convex of the patterns to form a combined foundation pit in a complex intersection form, wherein the combined foundation pit form comprises a plurality of independent foundations, water collecting pits and elevator pit groove forms with different depths in an intersection relation, and pit groove forms at the variable elevation position of the raft plate, and pit groove forms with overlapping positions of the temperature telescopic post-pouring belt and the sedimentation post-pouring belt.
Further, loading the created foundation pit group into the project model, and adjusting the position and elevation according to the datum point, including: after the foundation pit group is created, loading the foundation pit group into a project model, and placing the foundation pit group according to the elevation and the axis position of the foundation pit in the drawing, so that the foundation pit model is basically created. The elevation information of each position is directly read from the model, the form of the whole foundation pit of the engineering is known in advance by utilizing the visual characteristics of the model, and an effective means is provided for implementing and controlling the engineering at the stage.
Further, the optimization of the foundation pit scheme, generating a final foundation pit model, includes: and checking the accuracy of the foundation pit according to the design drawing, optimizing the intersection relation and data of the existing foundation pit, and adding dimension marking and elevation information according to engineering requirements after optimizing the foundation pit scheme to generate a final foundation pit model. Because the two-dimensional drawing cannot intuitively reflect the joint foundation pit joint form, the foundation pit scheme needs to be optimized before the construction stage is implemented, the problem can be solved by accurately creating the foundation pit model, the difficulty is reduced again by directly optimizing the scheme in the model, and the shape of the optimized joint foundation pit is clear at a glance. In addition, the accurate foundation pit excavation drawing can be provided according to project actual demands, and the foundation pit excavation drawing is used for guiding construction to achieve the purpose of accurate excavation.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A rapid construction method of a complex foundation pit engineering model is characterized by comprising the following steps: the method comprises the following steps:
s1, acquiring a CAD drawing, and acquiring component information data based on the CAD drawing;
s2, creating a foundation pit group by taking a metric conventional model as a group template;
s3, loading the created foundation pit group into the project model, and adjusting the position and elevation according to the datum point;
s4, optimizing a foundation pit scheme, and generating a final foundation pit model;
in step S2, creating a foundation pit group by using a metric conventional model as a group template, including:
s21, creating a soil covering entity layer in an entity stretching mode;
s22, sequentially creating a hollow model in a hollow fusion mode on the soil covering entity layer;
s23, processing complex node relations by using Boolean operation to form a combined foundation pit in a complex joint form;
s24, completing the creation of the whole foundation pit group model.
2. The rapid construction method of a complex foundation pit engineering model according to claim 1, wherein: in step S21, the range of the solid layer of the covering soil is the excavation range of the whole foundation pit of the engineering, and the thickness of the solid layer of the covering soil is greater than the burial depth of the foundation, wherein the constraint elevation of the stretching start point is set to be the elevation of the whole foundation surface layer of the engineering in the drawing, and the constraint elevation of the stretching end point is set to be a non-fixed value but lower than the lowest foundation elevation in the drawing, so that the solid layer of the covering soil is formed.
3. The rapid construction method of a complex foundation pit engineering model according to claim 2, wherein: in step S22, a hollow model is created in a hollow fusion manner in sequence on the earth covering physical layer, including:
s221, creating a pit mouth by using a mode of creating hollow fusion of a hollow shape to form a foundation pit;
s222, drawing a bottom contour, and taking the lower pit mouth range of any independent foundation, water collection pit or elevator shaft in the drawing as the bottom contour;
s223, drawing a top contour, and taking the upper pit mouth range of any independent foundation, water collection pit or elevator shaft in the drawing as the top contour;
s223, setting the first end point constraint elevation of the hollow model as the elevation height of the lower pit mouth of the independent foundation, and setting the second end point constraint elevation of the hollow model as the elevation height of the foundation surface layer, so as to finish drawing of the independent foundation pit;
s224, drawing other foundation bedplate component models sequentially, wherein the drawing comprises the following steps:
elevator shaft: the elevator shaft drawing is completed one by using a mode of creating hollow fusion of hollow shapes;
and (3) collecting pit: and (3) completing sump pit drawing one by using a mode of creating hollow fusion of the hollow shape.
4. A method for quickly constructing a complex foundation pit engineering model according to claim 3, wherein: in step S23, complex node relationships are processed by boolean operations to form a complex joint foundation pit in a complex joint form, which includes: the method comprises the steps of carrying out Boolean operation on the collision problems of intersection, overlapping and concave-convex of graphs to form a combined foundation pit in a complex intersection form, wherein the combined foundation pit form comprises a plurality of independent foundations, water collection pits and elevator pit groove forms with different depths in an intersection relation, pit groove forms at the elevation positions of raft board variable positions, and pit groove forms with overlapping positions of temperature telescopic post-pouring strips and sedimentation post-pouring strips.
5. The rapid construction method of a complex foundation pit engineering model according to claim 1, wherein: in step S1, acquiring a CAD drawing, and acquiring component information data based on the CAD drawing, including: and identifying the outline range of each component of the foundation slab, accurately reading the elevation information of the upper and lower pits and the change positions of all the elevations, and identifying the outline range lines of the upper pit and the lower pit.
6. The rapid construction method of a complex foundation pit engineering model according to claim 1, wherein: in step S3, loading the foundation pit group into the project model, and adjusting the position and elevation according to the datum point, including: after the foundation pit group is created, the foundation pit group is loaded into a project model, the foundation pit group is placed according to the elevation and the axis position of the foundation pit in the drawing, elevation information of each position is directly read from the model, and the overall foundation pit shape of the engineering is visualized.
7. The rapid construction method of the complex foundation pit engineering model according to claim 6, wherein the rapid construction method comprises the following steps: in step S4, the foundation pit scheme is optimized, and a final foundation pit model is generated, including: and checking the accuracy of the foundation pit according to the design drawing, optimizing the intersection relation and data of the existing foundation pit, adding dimension marking and elevation information according to engineering requirements after optimizing the foundation pit scheme, and generating a final foundation pit model to guide construction.
8. A quick construction system of complicated foundation ditch engineering model, its characterized in that: comprising the following steps:
the data acquisition unit is used for acquiring a CAD drawing and acquiring component information data based on the CAD drawing;
the foundation pit group creation unit is used for creating a foundation pit group by taking a metric conventional model as a group template;
the foundation pit model creation unit is used for loading the created foundation pit group into the project model and adjusting the position and elevation according to the datum point;
the foundation pit scheme optimizing unit is used for optimizing a foundation pit scheme and generating a final foundation pit model;
the method for creating the foundation pit group by using the metric conventional model as the group template comprises the following steps:
creating a soil-covered solid layer in a solid stretching mode;
sequentially creating a hollow model in a hollow fusion mode on the earthing solid layer;
processing complex node relations by using Boolean operation to form a combined foundation pit in a complex joint form;
and (5) completing the creation of the integral foundation pit group model.
9. The rapid construction system of a complex foundation pit engineering model according to claim 8, wherein: the method for creating the hollow model on the earthing solid layer sequentially in a hollow fusion mode comprises the following steps:
creating a pit mouth by using a mode of creating hollow fusion of a hollow shape to form a foundation pit;
drawing a bottom contour, and taking the pit opening range of any independent foundation, water collection pit or elevator shaft in the drawing as the bottom contour;
drawing a top outline, and taking the upper pit mouth range of any independent foundation, water collection pit or elevator shaft in the drawing as the top outline;
setting the first end point constraint elevation of the hollow model as the elevation height of the lower pit mouth of the independent foundation, and setting the second end point constraint elevation of the hollow model as the elevation height of the foundation surface layer, so as to finish the drawing of the independent foundation pit;
drawing of other foundation mat component models is completed in sequence, including:
elevator shaft: the elevator shaft drawing is completed one by using a mode of creating hollow fusion of hollow shapes;
and (3) collecting pit: and (3) completing sump pit drawing one by using a mode of creating hollow fusion of the hollow shape.
10. The rapid construction system of a complex foundation pit engineering model according to claim 9, wherein: the method for forming the combined foundation pit in the complex joint form by utilizing Boolean operation to process complex node relation comprises the following steps: the method comprises the steps of carrying out Boolean operation on the collision problems of intersection, overlapping and concave-convex of graphs to form a combined foundation pit in a complex intersection form, wherein the combined foundation pit form comprises a plurality of independent foundations, water collection pits and elevator pit groove forms with different depths in an intersection relation, pit groove forms at the elevation positions of raft board variable positions, and pit groove forms with overlapping positions of temperature telescopic post-pouring strips and sedimentation post-pouring strips.
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