Method and equipment for deepening earth cutting surface of bottom plate based on BIM (Building Information Modeling) model

Abstract

The invention provides a method and equipment for deepening a floor excavation surface based on a BIM (Building Information Modeling). The method comprises the following steps: obtaining an original large floor BIM; a bearing platform model with the excavation depth larger than a preset depth threshold value is screened out from the original large bottom plate BIM model, and the screened bearing platform model is obtained; based on the screened bearing platform model, obtaining a new large bottom plate BIM model; shearing the rectangular earthwork model and the new large floor BIM model to obtain an unoptimized earth cutting surface model; adjusting the unoptimized excavation surface model to obtain a large floor BIM deepening model; based on the large floor BIM deepening model, obtaining a second overall model; shearing the rectangular earthwork model and the second overall model to obtain an earth cutting surface deepening model; and entering an overlook plane of the excavation surface deepening model, and exporting an excavation sideline plane drawing, so that the bottom plate excavation shape is more intuitive, the adjustment content is more scientific, a practical and feasible bottom plate excavation scheme is obtained in advance to guide construction, and the large bottom plate construction quality is improved.

Description

TECHNICAL FIELD

[0001] The application relates to a method and equipment for deepening a bottom plate excavation surface based on a BIM model. BACKGROUND

[0002] A traditional excavation surface optimization method relies on two-dimensional drawing slope lines, and each person imagines a three-dimensional shape and then adjusts the lines; for complex pit conditions, only local adjustments can be made during construction, and unreasonable multi-pit arrangements cannot be adjusted in advance, resulting in more construction waste. SUMMARY

[0003] The application aims to provide a method and equipment for deepening a bottom plate excavation surface based on a BIM model.

[0004] To solve the above problems, the application provides a method for deepening a bottom plate excavation surface based on a BIM model, which comprises the following steps:

[0005] An original large bottom plate BIM model is obtained, and the components of the original large bottom plate BIM model include a bottom plate model, a post-cast strip model, a pile cap model and a water collecting well model;

[0006] The pile cap model with a depth greater than a preset depth threshold is selected from the original large bottom plate BIM model to obtain a selected pile cap model;

[0007] Based on the selected pile cap model, a new large bottom plate BIM model is obtained;

[0008] A vertical rectangular earthwork model is established;

[0009] The rectangular earthwork model is sheared with the new large bottom plate BIM model to eliminate the overlapping part of the rectangular earthwork model and the large bottom plate model, and an unoptimized excavation surface model is obtained;

[0010] The unoptimized excavation surface model is adjusted based on a preset construction requirement to obtain a large bottom plate BIM deepening model;

[0011] Based on the large bottom plate BIM deepening model, a second overall model is obtained;

[0012] The rectangular earthwork model is sheared with the second overall model to eliminate the overlapping part of the rectangular earthwork model and the large bottom plate BIM deepening model, and an excavation surface deepening model is obtained;

[0013] A top-down plane of the excavation surface deepening model is entered, and an excavation line plan is derived.

[0014] Further, in the above method, the pile cap model with a depth greater than a preset depth threshold is selected from the original large bottom plate BIM model to obtain a selected pile cap model, which comprises the following steps:

[0015] extracting a bearing platform circumscribed rectangle model in the original large floor BIM model;

[0016] extracting a floor model, a floor model, a post-cast strip model, a bearing platform model and a water collecting well model in the original large floor BIM model, merging the floor model, the floor model, the post-cast strip model, the bearing platform model and the water collecting well model extracted into a first overall model;

[0017] cutting the bearing platform circumscribed rectangle model and the first overall model to eliminate the overlapping part of the bearing platform circumscribed rectangle model and the first overall model, to obtain a bearing platform circumscribed rectangle model after deducting the plate thickness;

[0018] reading the height data of the bearing platform circumscribed rectangle model after deducting the plate thickness as the deepening data of the bearing platform model, and exporting the deepening data of all bearing platform models to a table;

[0019] referring to the bearing platform models with different deepening data in the table and the actual construction requirements, determining the bearing platform removal slope condition: the deepening data of the bearing platform model needs to be greater than a height threshold value;

[0020] creating a deepening parameter of a new bearing platform model in the original large floor BIM model, and assigning the deepening data of the bearing platform of the bearing platform circumscribed rectangle model after deducting the plate thickness to the deepening parameter of the corresponding bearing platform model;

[0021] creating a condition item filter in the original large floor BIM model to filter out the bearing platform models with deepening parameters greater than the height threshold value to obtain the filtered bearing platform models.

[0022] Further, in the above method, the deepening data of all bearing platform models is exported to a table, including:

[0023] merging and counting the deepening data of the repeated bearing platform models in the table to obtain the number of different deepening bearing platform models.

[0024] Further, in the above method, based on the filtered bearing platform models, a new large floor BIM model is obtained, including:

[0025] applying a visibility item filter to modify the filtered bearing platform models to a sloping bearing platform according to the required slope angle, obtaining a new bearing platform model based on the sloping bearing platform, and replacing the original bearing platform model in the original large floor BIM model with the new bearing platform model to obtain a new large floor BIM model.

[0026] Further, in the above method, the unoptimized earth excavation surface model is adjusted to obtain a large floor BIM deepening model in combination with the preset construction requirements, including:

[0027] In the complex pit and pit area, the planar size of the pile cap model or the water collecting well model in the expanded non-optimized excavation surface model is expanded, so that the slope surface gap of the non-optimized excavation surface model is eliminated, to obtain a first large bottom plate BIM deepening model;

[0028] For the pile cap model in the first large bottom plate BIM deepening model, the height of the pile cap model or the water collecting well model in the first large bottom plate BIM deepening model is deepened, so that the bottom of the first large bottom plate BIM deepening model is flush, to obtain a second large bottom plate BIM deepening model;

[0029] The pile cap model in the second large bottom plate BIM deepening model is expanded to envelope the post-cast strip model, to obtain a third large bottom plate BIM deepening model as a large bottom plate BIM deepening model.

[0030] Further, in the above method, the height difference threshold is 5cm.

[0031] Further, in the above method, based on the bottom plate BIM deepening model, a bottom plate concrete amount is obtained, comprising:

[0032] The bottom plate model, the post-cast strip model, the pile cap model and the water collecting well model in the third large bottom plate BIM deepening model are merged into a second overall model, and the volume of the second overall model is read as the bottom plate concrete amount.

[0033] Further, in the above method, in the establishment of the rectangular earthwork model, the upper surface of the rectangular earthwork model is aligned with the upper surface of the new large bottom plate BIM model, wherein the new large bottom plate BIM model is a subset of the rectangular earthwork model.

[0034] According to another aspect of the present application, there is also provided a computer readable storage medium having computer executable instructions stored thereon, wherein the computer executable instructions, when executed by a processor, cause the processor to perform any of the above methods.

[0035] According to another aspect of the present application, there is also provided a computer device, comprising:

[0036] a processor; and

[0037] a memory arranged to store computer executable instructions which, when executed, cause the processor to perform any of the above methods.

[0038] Compared with the prior art, the present application relates to a rapid generation of a bottom plate excavation surface model, a bottom plate concrete output, and a rapid modification of the excavation surface model based on optimization rules and an export of effective excavation surface edges. The present application makes the bottom plate excavation shape more intuitive, the adjustment content more scientific, and the actual feasible bottom plate excavation scheme obtained in advance to guide construction, thereby improving the construction quality of the large bottom plate. The present application utilizes the intuitiveness of the three-dimensional BIM model, ensures the scientific rigor of the bottom plate excavation deepening process, improves the optimization work efficiency and deepening precision of the complex area, and makes the deepening result truly meet the construction application; meanwhile, the computer program operation is assisted to greatly reduce the burden of the bottom plate information statistics work. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a flowchart of a deepening bottom plate excavation surface method based on a BIM model according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] The present application will be further described below in conjunction with the drawings.

[0041] In a typical configuration of the present application, the terminal, the device of the service network and the trusted party each include one or more processors (CPUs), input / output interfaces, network interfaces and memories.

[0042] The memory can include a non-permanent memory in a computer readable medium, a random access memory (RAM) and / or a non-volatile memory such as a read-only memory (ROM) or a flash memory (flash RAM). The memory is an example of the computer readable medium.

[0043] The computer readable medium includes permanent and non-permanent, removable and non-removable media, and can be implemented by any method or technology to store information. The information can be computer readable instructions, data structures, program modules or other data. Examples of the computer storage medium include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape disk storage or other magnetic storage device, or any other non-transmission medium that can be used to store information accessible by a computing device. According to the definition herein, the computer readable medium does not include non-transitory computer readable media such as modulated data signals and carriers.

[0044] As Figure 1As shown, the present application provides a method for deepening the excavation surface of the base plate based on the BIM model, which comprises:

[0045] Step 1, obtain the original large base plate BIM model, the components of the original large base plate BIM model include: base plate model, post-cast strip model, pile cap model and water collecting well model (elevator shaft) ;

[0046] Step 2, screen out the pile cap model with a deepening greater than a preset depth threshold from the original large base plate BIM model to obtain the screened pile cap model;

[0047] Here, the preset depth threshold may be, for example, 1.5 meters;

[0048] Step 2.1, extract the pile cap circumscribed rectangle model in the original large base plate BIM model;

[0049] Step 2.2, extract the base plate model, base plate model, post-cast strip model, pile cap model and water collecting well model in the original large base plate BIM model, and combine the extracted base plate model, base plate model, post-cast strip model, pile cap model and water collecting well model into a first integral model;

[0050] Step 2.3, cut the pile cap circumscribed rectangle model and the first integral model to eliminate the overlapping part of the pile cap circumscribed rectangle model and the first integral model to obtain the pile cap circumscribed rectangle model after deducting the plate thickness;

[0051] Step 2.4, read the height data of the pile cap circumscribed rectangle model after deducting the plate thickness as the deepening data of the pile cap model, and export the deepening data of all pile cap models to a table;

[0052] Step 2.5, combine and count the deepening data of the repeated pile cap models in the table to obtain the number of different deepening pile cap models;

[0053] Here, the number of pile cap models can be used as an intermediate output result

[0054] Step 2.6, refer to the pile cap models with different deepening data in the table and the actual construction requirements to determine the pile cap slope changing condition: the deepening data of the pile cap model needs to be greater than the height threshold h;

[0055] Step 2.7, create a new pile cap model deepening parameter H in the original large base plate BIM model, and assign the deepening data of the pile cap of the pile cap circumscribed rectangle model after deducting the plate thickness (obtained in step 2.4) to the corresponding pile cap model deepening parameter H;

[0056] Step 2.8, create a condition item filter in the original large base plate BIM model to filter out the pile cap model with the excavation parameter H greater than the height threshold h, i.e. H≥h, to obtain the filtered pile cap model;

[0057] Step 3, apply a visibility item filter to modify the filtered pile cap model to a sloping pile cap according to the required slope angle; based on the sloping pile cap, obtain a new pile cap model; replace the original pile cap model in the original large base plate BIM model with the new pile cap model to obtain a new large base plate BIM model;

[0058] Step 4, establish a rectangular earthwork model, wherein the upper surface of the rectangular earthwork model is aligned with the upper surface of the new large base plate BIM model, and wherein the new large base plate BIM model is a subset of the rectangular earthwork model;

[0059] Here, the volume of the rectangular earthwork model subset contains the volume of the new large base plate BIM model;

[0060] Step 5, cut the rectangular earthwork model and the new large base plate BIM model to eliminate the overlapping part of the rectangular earthwork model and the large base plate model to obtain an unoptimized excavation surface model;

[0061] Step 6, adjust the unoptimized excavation surface model to obtain a large base plate BIM deepening model according to the preset construction requirements.

[0062] Step 6.1, in the complex pit connection pit area, enlarge the plan size of the pile cap model or the water collecting well model in the unoptimized excavation surface model (obtained in step 5) to eliminate the slope surface gap of the unoptimized excavation surface model to obtain a first large base plate BIM deepening model; for the pile cap model with a bottom interval height difference ≤5cm in the first large base plate BIM deepening model, deepen the height of the pile cap model or the water collecting well model in the first large base plate BIM deepening model to make the bottom of the first large base plate BIM deepening model flush, to obtain a second large base plate BIM deepening model;

[0063] Step 6.2, enlarge the pile cap model in the second large base plate BIM deepening model to envelope the post-cast strip model to obtain a third large base plate BIM deepening model as the large base plate BIM deepening model;

[0064] Step 7, based on the base plate BIM deepening model, obtain a second overall model: combine the base plate model, the post-cast strip model, the pile cap model and the water collecting well model in the third large base plate BIM deepening model into a second overall model, read the volume of the second overall model as the base plate concrete amount;

[0065] Step 8, the rectangular earthwork model (obtained in step 4) is sheared with the second integral model (obtained in step 7) to eliminate the overlapping part of the rectangular earthwork model and the third large base plate model, and an earth excavation surface deepening model is obtained.

[0066] Step 9, a top view plane of the earth excavation surface deepening model is entered to derive an earth excavation line plan.

[0067] According to another aspect of the present application, there is also provided a computer readable storage medium having computer executable instructions stored thereon, wherein the computer executable instructions, when executed by a processor, cause the processor to perform the method of any one of the above.

[0068] According to another aspect of the present application, there is also provided a computer device, comprising:

[0069] a processor; and

[0070] a memory arranged to store computer executable instructions which, when executed, cause the processor to perform the method of any one of the above.

[0071] The present application relates to a kind of bottom plate earth excavation surface model fast generation, bottom plate concrete output, and based on the quick modification of optimization rule and the derivation of effective earth excavation surface boundary of earth excavation surface model.

[0072] The present application makes the bottom plate earth excavation shape more intuitive, and the adjustment content is more scientific, and the practical feasible bottom plate earth excavation scheme is obtained in advance to guide construction, and the quality of large base plate construction is improved.

[0073] The present application utilizes the intuitiveness of three-dimensional BIM model, ensures the scientific rigor of bottom plate earth excavation deepening process, improves the optimization work efficiency and deepening precision of complex area, and the deepening achievement truly meets construction application;Meanwhile, through the auxiliary participation of computer program operation, the burden of bottom plate information statistics work is greatly reduced.

[0074] The detailed contents of each device embodiment of the present application can be referred to the corresponding part of each method embodiment, and here, will not be repeated.

[0075] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

[0076] It is noted that the application can be implemented in software and / or in a combination of software and hardware, e.g., using application specific integrated circuits (ASIC), a general purpose computer or any other similar hardware devices. In one embodiment, software programs to carry out the above-described steps or functions can be written in a high-level procedural or object-oriented programming language, and stored in a computer readable storage medium such as RAM memory, magnetic or optical drive or diskette, and the like. Furthermore, the software programs, including associated data structures, can be stored in the memory of a computer, e.g., RAM memory, and executed by a processor of the computer. As such, the software in which execution of the application can be implemented can be stored on a computer readable storage medium, which is any volatile or non-volatile storage mechanism. The storage mechanism can store the software and related data and / or program instructions to implement the above-described steps or functions.

[0077] In addition, some of the steps or functions can be performed by hardware, e.g., through a circuit that cooperates with the processor to perform the steps or functions. Furthermore, one or more of the steps or functions can be performed in an arbitrary sequence or in parallel, unless otherwise indicated.

[0078] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The presently disclosed embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalents are intended to be embraced therein. No reference signs in the claims shall be construed as limiting the scope of the claims to the features illustrated. Furthermore, it is to be noted that the use of the terms "comprising", "including", "containing", "having" and variants thereof does not exclude the presence of other elements or steps than those listed. It is further noted that the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. Multiple units or devices of a device claim can also be implemented by one unit or device through software or hardware. The terms first, second and the like do not denote any order other than the order in which the features are described.

Claims

1. A method for refining the excavation surface of the foundation slab based on a BIM model, characterized in that, include: Obtain the original large foundation slab BIM model, the components of which include: foundation slab model, post-cast strip model, pile cap model and sump model; From the original BIM model of the foundation slab, select the pile cap models with an excavation depth greater than the preset depth threshold to obtain the selected pile cap models. Based on the selected foundation model, a new BIM model of the main foundation slab is obtained; Establish a rectangular earthwork model; The rectangular earthwork model is cut from the new large foundation slab BIM model to eliminate the overlapping parts of the rectangular earthwork model and the large foundation slab model, resulting in an unoptimized excavation surface model. Based on the preset construction requirements, the unoptimized excavation surface model was adjusted to obtain the large foundation slab BIM detailed model; Based on the BIM refinement model of the large foundation slab, a second overall model is obtained; The rectangular earthwork model and the second overall model are cut to eliminate the overlap between the rectangular earthwork model and the large foundation slab BIM detail model, resulting in the excavation surface detail model. Enter the top view of the excavation surface detail model and export the excavation edge line plan drawing.

2. The method for refining the excavation surface of the foundation slab based on a BIM model as described in claim 1, characterized in that, From the original BIM model of the foundation slab, pile cap models with an excavation depth greater than a preset depth threshold are selected, resulting in the following pile cap models: Extract the outer rectangle model of the foundation slab from the original BIM model of the foundation slab; Extract the base slab model, base slab model, post-cast strip model, pile cap model and sump model from the original large base slab BIM model, and merge the extracted base slab model, base slab model, post-cast strip model, pile cap model and sump model into a first overall model; The outer rectangular model of the pier cap and the first overall model are cut to eliminate the overlapping part of the outer rectangular model of the pier cap and the first overall model, so as to obtain the outer rectangular model of the pier cap after deducting the plate thickness. Read the height data of the outer rectangular model of the pier cap after deducting the plate thickness, use it as the excavation depth data of the pier cap model, and export the excavation depth data of all pier cap models to a table; Referring to the pier cap models with different excavation depths in the table and the actual construction requirements, the conditions for changing the slope of the pier cap are determined: the excavation depth data of the pier cap model must be greater than the height threshold. In the original large foundation slab BIM model, create the excavation depth parameters for the new foundation cap model, and assign the excavation depth data of the foundation cap of the outer rectangular model after deducting the slab thickness to the corresponding excavation depth parameters of the foundation cap model. Create a conditional project filter in the original large foundation slab BIM model to filter out the foundation models with excavation depth parameters greater than the height threshold, so as to obtain the filtered foundation models.

3. The method for refining the excavation surface of the foundation slab based on a BIM model as described in claim 1, characterized in that, Export the excavation depth data of all foundation models to a table, including: The excavation depth data of duplicate foundation models in the table are merged and counted to obtain the number of foundation models with different excavation depths.

4. The method for refining the excavation surface of the foundation slab based on a BIM model as described in claim 1, characterized in that, Based on the selected foundation platform model, a new BIM model of the main foundation slab is obtained, including: Apply the visibility project filter to modify the selected pier cap model into a sloping pier cap according to the required slope angle; obtain a new pier cap model based on the sloping pier cap; replace the original pier cap model in the original large foundation slab BIM model with the new pier cap model to obtain a new large foundation slab BIM model.

5. The method for refining the excavation surface of the foundation slab based on a BIM model as described in claim 1, characterized in that, Based on the preset construction requirements, the unoptimized excavation surface model was adjusted to obtain the large foundation slab BIM detailed model, including: In complex pit-to-pit areas, the planar dimensions of the pier model or sump model in the unoptimized excavation surface model are enlarged to eliminate the voids in the slope surface of the unoptimized excavation surface model, so as to obtain the first large base plate BIM detailed model. For the foundation model in the first large foundation slab BIM detailed model where the bottom interval height difference is less than or equal to the preset height difference threshold, the height of the foundation model or water collection well model in the first large foundation slab BIM detailed model is increased to make the bottom of the first large foundation slab BIM detailed model flush with the bottom, so as to obtain the second large foundation slab BIM detailed model. The foundation model that is close to the post-cast strip model in the second large foundation slab BIM refinement model is expanded to enclose the post-cast strip model to obtain the third large foundation slab BIM refinement model, which serves as the large foundation slab BIM refinement model.

6. The method for refining the excavation surface of the foundation slab based on a BIM model as described in claim 5, characterized in that, The height difference threshold is 5cm.

7. The method for refining the excavation surface of the foundation slab based on a BIM model as described in claim 1, characterized in that, Based on the BIM detailed model of the foundation slab, the concrete volume of the foundation slab is obtained, including: The base slab model, post-cast strip model, pile cap model, and sump model in the third large base slab BIM detailed model are merged into a second overall model. The volume of this second overall model is read as the base slab concrete volume.

8. The method for refining the excavation surface of the foundation slab based on a BIM model as described in claim 1, characterized in that, In establishing the rectangular earthwork model, the upper surface of the rectangular earthwork model is aligned with the upper surface of the new large foundation slab BIM model, wherein the new large foundation slab BIM model is a subset of the rectangular earthwork model.

9. A computer-readable storage medium having stored thereon computer-executable instructions, wherein, When the computer-executable instructions are executed by the processor, the processor causes the processor to perform the method as described in any one of claims 1 to 8.

10. A calculator device, wherein, include: processor; as well as A memory configured to store computer-executable instructions, which, when executed, cause the processor to perform the method as described in any one of claims 1 to 8.

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