CN114564782A - BIM-based foundation pit site drainage system construction method - Google Patents
BIM-based foundation pit site drainage system construction method Download PDFInfo
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- CN114564782A CN114564782A CN202210253964.1A CN202210253964A CN114564782A CN 114564782 A CN114564782 A CN 114564782A CN 202210253964 A CN202210253964 A CN 202210253964A CN 114564782 A CN114564782 A CN 114564782A
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- G06—COMPUTING; CALCULATING OR COUNTING
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- 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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- G06F30/20—Design optimisation, verification or simulation
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- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes
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- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to the technical field of drainage systems, and discloses a construction method of a foundation pit site drainage system based on BIM, which comprises the following construction steps: 1) establishing a high-precision field terrain BIM model; 2) performing flow analysis according to the field terrain BIM model, and judging the terrain concave land in the field terrain BIM model; 3) carrying out point location data extraction and derivation on the processed field terrain BIM for project field lofting construction; 4) respectively integrating the foundation pit supporting system model and the municipal pipeline model into a field topography BIM model; 5) performing multiple arrangement rehearsal on various drainage facilities, and establishing a BIM (building information modeling) model of a drainage system after obtaining the optimal parameter ratio; 6) leading out a data list and a drawing, and constructing and arranging a drainage system; 7) and collecting the construction process data of the drainage system in real time, and feeding back the data to the BIM model of the drainage system for information input and verification.
Description
Technical Field
The invention relates to the technical field of drainage systems, in particular to a construction method of a foundation pit site drainage system based on BIM.
Background
At present, the drainage system in the foundation pit field of foundation basis specialty is mostly the interim dynamic setting of construction period, and the overall planning degree in construction early stage is lower. Although the drainage system consists of a certain number of fixed drainage facilities and temporary auxiliary facilities, when the conditions of the foundation pit field are complex, the comprehensive arrangement difficulty of the drainage facilities is high, the combination of the drainage system and the actual conditions of the foundation pit field is poor, so that the drainage facilities are frequently changed and arranged, and the utilization rate of the original facilities is low; meanwhile, the construction period and the cost are limited, the setting optimization degree of the drainage system in the foundation pit field is low, the drainage effect of the drainage system is poor, the foundation pit field is muddy, and the heavy rainfall weather cannot be dealt with.
In the prior art, the existing problems can bring adverse effects to field operators, construction machinery and material storage, are not beneficial to achieving the purpose of fine construction management, and are difficult to meet the times of increasingly improved safety and civilized construction of engineering construction projects.
Disclosure of Invention
The invention aims to provide a construction method of a foundation pit site drainage system based on BIM, and aims to solve the problem that in the prior art, fine construction management is difficult to achieve in foundation pit site drainage system construction.
The invention is realized in this way, the construction method of the foundation pit site drainage system based on the BIM comprises the following construction steps:
1) acquiring three-dimensional point location information of a foundation pit field, and establishing a high-precision field terrain BIM (building information modeling) model;
2) performing flowing water analysis according to the field topography BIM model, simulating gravity and water flow trend caused by altitude difference change, judging topography concave land in the field topography BIM model, and providing a planning direction for the first processing work of the foundation pit field;
3) interfering aiming at adverse effects caused by height difference, generating a design field curved surface according to a design field elevation planned by construction deployment, carrying out earthwork coupling simulation on the design field curved surface and a field terrain BIM (building information modeling) model, carrying out height difference balance on the field terrain BIM model according to the principle of high excavation and low filling, and carrying out point location data extraction and derivation on the processed field terrain BIM model for project field lofting construction;
4) respectively integrating the foundation pit supporting system model and the municipal pipeline model into a field topography BIM model;
5) building detailed site models of supporting pile construction, engineering pile construction and foundation pit earthwork excavation projects in equal proportion on site terrain BIM models; based on the accumulated water pumping and draining principle of comprehensively and dynamically deploying drainage facilities in a foundation pit field at different construction stages, performing repeated arrangement rehearsal on various drainage facilities, and establishing a BIM (building information modeling) model of a drainage system after obtaining the optimal parameter ratio;
6) deriving a data list and a drawing based on a BIM model of the drainage system, purchasing materials according to the data of the list, and constructing and arranging the drainage system according to the drawing;
7) and in actual construction, collecting the construction process data of the drainage system in real time, and feeding back the data to the BIM of the drainage system for information input and verification.
Further, in the construction step 1), collecting or actually measuring topographic data of the foundation pit field by using an RTK and a total station to obtain three-dimensional point location information of the foundation pit field.
Further, in the construction step 1), the three-dimensional point location information is imported into Civil3D in a point file form, the point file is converted into a terrain three-dimensional curved surface model in proportion to the site, and abnormal point locations existing in the terrain three-dimensional curved surface model are corrected to form the site terrain BIM model.
Further, in the construction step 4), according to the total construction design drawing, disassembling drawing data of the foundation pit supporting system, importing Revit, and establishing a foundation pit supporting system model according to the drawing data.
Furthermore, according to municipal survey data, municipal pipeline drawing data are disassembled and Revit is imported, and a municipal pipeline model is established according to the drawing data.
And further, introducing a field terrain BIM model equal-proportion model with a completed detail field model into the Fuzor, converting a project construction total progress plan MPP format file into an XML format data file, introducing the XML format data file into the Fuzor, sequentially linking each component of the detail field model of each stage according to the project construction total progress plan, and performing construction simulation through the equal-proportion model.
Further, in the construction step 6), the data list includes concrete volume, brick laying quantity, submersible pump model, pipe, connecting piece or steel consumption.
Further, in the construction step 6), the construction layout drainage system comprises positioning and paying off, trench excavation, substrate treatment, masonry, pipeline paving, assembly connection, water prevention, irrigation or water passing construction.
Compared with the prior art, the construction method of the foundation pit site drainage system based on the BIM, provided by the invention, has the advantages that the BIM model of the site terrain is built in equal proportion, the height difference and the gravity flow trend of the site are analyzed, and a visual basis is provided for construction decision; building a BIM (building information modeling) model of the drainage system, and updating the BIM model synchronously with the overall construction plan, so that the preview work of the early-stage virtual sand table is increased, the reliability of practical application is improved, and repeated construction is avoided; on the basis of a BIM (building information modeling) model of the drainage system, required main materials are calculated, prefabricated part drawings are issued for preprocessing, project management is refined, material waste is reduced, and construction cost is reduced; and meanwhile, construction information is synchronously led into the BIM model of the drainage system, so that the information tracking and maintenance construction of later-stage components are facilitated.
Drawings
FIG. 1 is a schematic flow chart of a construction method of a foundation pit site drainage system based on BIM provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1, a preferred embodiment of the present invention is shown.
The construction method of the foundation pit site drainage system based on the BIM is characterized by comprising the following construction steps:
1) acquiring three-dimensional point location information of a foundation pit field, and establishing a high-precision field topography BIM model according to the three-dimensional point location information;
2) performing flowing water analysis according to the field topography BIM model, simulating gravity and water flow trend caused by altitude difference change, judging topography concave land in the field topography BIM model, and providing a planning direction for the first processing work of the foundation pit field;
3) interfering aiming at adverse effects caused by height difference, generating a design field curved surface according to a design field elevation drawn by construction deployment, carrying out earthwork coupling simulation on the design field curved surface and a field terrain BIM model, carrying out height difference balance on the field terrain BIM model according to the principle of high excavation and low filling, and carrying out point location data extraction and derivation on the processed field terrain BIM model for project field lofting construction;
4) respectively integrating the foundation pit supporting system model and the municipal pipeline model into a field topography BIM model;
5) building detailed site models of supporting pile construction, engineering pile construction and foundation pit earthwork excavation projects in equal proportion on site terrain BIM models; based on the accumulated water pumping and draining principle of comprehensively and dynamically deploying drainage facilities in a foundation pit field at different construction stages, performing repeated arrangement rehearsal on various drainage facilities, and establishing a BIM (building information modeling) model of a drainage system after obtaining the optimal parameter ratio;
6) deriving a data list and a drawing based on a BIM model of the drainage system, purchasing materials according to the data of the list, and constructing and arranging the drainage system according to the drawing;
7) and in actual construction, collecting the construction process data of the drainage system in real time, and feeding back the data to the BIM model of the drainage system for information input and verification.
According to the construction method of the foundation pit site drainage system based on the BIM, the BIM model of the site terrain is built in equal proportion, the height difference and the gravity flowing trend of the site are analyzed, and a visual basis is provided for construction decision; building a BIM (building information modeling) model of the drainage system, synchronously updating with the overall construction plan, increasing the preview work of the early-stage virtual sand table, improving the reliability of practical application and avoiding repeated construction; on the basis of a BIM (building information modeling) model of the drainage system, required main materials are calculated, prefabricated part drawings are issued for preprocessing, project management is refined, material waste is reduced, and construction cost is reduced; and meanwhile, construction information is synchronously led into the BIM model of the drainage system, so that the information tracking and maintenance construction of later-stage components are facilitated.
In the construction step 1), collecting or actually measuring topographic data of the foundation pit field by using an RTK and a total station to obtain three-dimensional point location information of the foundation pit field.
Adopt RTK under the open condition in place, under high building, trees etc. sheltered from the environment, adopt the total powerstation to carry out the collection or the actual measurement of topography data to the foundation ditch place to this obtains the three-dimensional point location information in project foundation ditch place, should all carry out the inspection and check after the point location information acquisition and before the use, avoids machine or artificial factor to lead to the information error or lose.
In the construction step 1), three-dimensional point location information is imported into Civil3D in a point file mode, the point file is converted into a terrain three-dimensional curved surface model which is in equal proportion to the site, and abnormal point locations of the terrain three-dimensional curved surface model are corrected to form a site terrain BIM model.
In the construction step 2), the site terrain BIM is subjected to flowing water analysis through Civil3D, the gravity and water flow trend caused by height difference change is simulated, the terrain concave land in the site terrain BIM is judged, and a planning direction is provided for site first-handling work.
In the construction step 3), intervention is carried out on adverse effects caused by the height difference, a design site curved surface is generated in Civil3D according to a design site elevation planned by construction deployment, earthwork coupling simulation is carried out on the design site curved surface and a site terrain BIM model, height difference balance is carried out on the site terrain BIM model according to the principle of high excavation and low filling, the processed site terrain BIM model is subjected to point location data extraction and derivation for project site lofting construction, and the project site and the site model are ensured to be synchronous.
In the construction step 4), disassembling drawing data in a DWG format of the foundation pit supporting system according to a total construction design drawing, importing Revit, and establishing a foundation pit supporting system model according to the drawing data; according to municipal survey data, disassembling municipal pipeline DWG format drawing data, importing Revit, and establishing a municipal pipeline model according to the drawing data; and integrating the processed field terrain BIM model, the foundation pit supporting system model and the municipal pipeline model in Revit through a project base point function, so as to establish an equal-proportion model of the project overall engineering and provide an early-stage preview condition for engineering construction.
In the construction step 5), the drainage system needs to be set and optimized according to the change of the rainfall, the construction water consumption and the underground water quantity of the foundation pit, the operation flow of the drainage system is as follows, water treated by the drainage system mainly comes from rainwater, construction water and foundation pit underground water, the construction water is mainly supplied to foundation pit pile foundation construction, vehicle cleaning and the like by taking a water supply pipe connection point introduced by a municipal pipe network as a water source, and when the water supply pressure of the municipal pipe network is insufficient, a water storage pool is constructed for pressurized water supply.
The engineering construction process strictly follows the general idea of pit top water interception, pit internal drainage and centralized collection treatment and discharge, and the natural drainage and forced drainage are combined, and the drainage system drains construction wastewater or rainwater around the foundation pit field into a water collecting well through a pit top drainage open trench, the construction wastewater or rainwater is collected into a sedimentation tank for treatment, and the construction wastewater or rainwater is recycled or discharged into a municipal rainwater and sewage pipeline after the water quality reaches the standard.
Collecting construction wastewater, rainwater and underground water in the foundation pit into a temporary water collecting pit, lifting the construction wastewater, the rainwater and the underground water to a water collecting well by a submersible pump, then conveying the construction wastewater to a pit top drainage open ditch, then collecting the construction wastewater, treating the construction wastewater in a centralized manner by a sedimentation tank, and recycling or discharging the construction wastewater into a municipal rainwater and sewage pipeline after the water quality reaches the standard; when the underground water level in the foundation pit is high, a dewatering well is adopted for pumping and descending, the underground water is lifted to a pit top drainage open ditch by a submersible pump and then collected into a sedimentation tank for treatment, and the underground water is recycled or discharged into a municipal rainwater and sewage pipeline after the water quality reaches the standard.
When the field is changed in the construction process, the total amount of engineering water and the drainage trend of the field under different construction stages and construction conditions are judged, the land with larger water consumption (from rainwater, construction water and underground water of a foundation pit) change is previewed, the optimal design of a drainage system is carried out on the land (the flow index of the field drainage system can deal with the weather of extremely heavy rainstorm (the rainfall is 250 mm/day), the height and the width of a drainage ditch can be increased, the volume of a water collecting well is increased or a prefabricated movable water collecting tank is adopted, the inner diameter of a pumping pipeline is increased, the number of submersible pumps in the water collecting well is increased or a frequency conversion submersible pump and other methods are used for coordinating the supply and demand relationship of the field water and drainage according to local conditions), the construction wastewater, the rainwater and the underground water in the foundation pit are collected into a temporary water collecting pit, are lifted to the water collecting well by the submersible pumps, then are conveyed to a top drainage open ditch, and are collected and treated by a sedimentation tank in a centralized mode, after the water quality reaches the standard, the water is recycled or discharged into a municipal rainwater and sewage pipeline, various drainage facilities are distributed and previewed for many times under an economic and reasonable standard based on the accumulated water pumping and draining principle of comprehensively and dynamically deploying the drainage facilities in the site at different construction stages, so that the high utilization rate of the drainage system under different accumulated and drained conditions at each construction stage is ensured, the drainage pipelines are fewer, the facility arrangement is reasonable, and after the optimal parameters (the quantity of the drainage facilities, the material energy consumption and the like) are obtained and matched, a BIM model of the drainage system of the final edition is established, so that a construction sample plate is provided for the site; and during the actual construction of the drainage system, the facility purchasing and arrangement work of the drainage system is carried out according to the data information such as the quantity, materials and the like of the drainage facilities provided by the BIM model construction sample plate of the drainage system.
In the construction step 6), based on the BIM model of the drainage system, a model data list is carried out, such as concrete volume, brick laying quantity, submersible pump model, pipe material, connecting piece or steel material consumption and the like, and the sizes of drainage ditches, water collecting wells and the like and the required material drawings are exported for site purchase and technical bottom-crossing work.
According to the drainage system component and the bill of materials derived by the drainage system BIM, a merchant is contacted to purchase, the components are prefabricated in a factory based on BIM model data, and then the components are transported to a construction site to be assembled, so that the construction difficulty of complex plots under site conditions (height difference and corners) is reduced, and the construction efficiency is improved.
After the assembly and the material are on site, according to construction data and drawings provided by a BIM model of the drainage system, a series of constructions such as positioning and paying-off, groove excavation, substrate treatment, building, pipeline paving, assembly connection, water prevention, irrigation or water passing tests and the like are carried out, and the drainage system is checked and accepted after the construction is finished, so that the functionality of the drainage system is ensured.
In the construction step 7), construction process data of each component of the drainage system, such as manufacturer source, construction date, specification, connection mode, warranty period, workers and the like of the drainage system component, are collected in real time during construction, and are fed back to the drainage system BIM model for information input and check, so that the accuracy of the correlation between the drainage system BIM model and the actual engineering is guaranteed, meanwhile, the components are convenient to track and maintain in the later period, after the drainage system finishes primary operation, continuous functional observation is conducted on the drainage system BIM model, and the reliability of the early-stage optimization design is verified.
In the construction step 4), according to the general construction design drawing, disassembling the drawing data of the foundation pit supporting system, importing Revit, and establishing a foundation pit supporting system model according to the drawing data.
According to municipal survey data, disassembling municipal pipeline drawing data and importing Revit, and establishing a municipal pipeline model according to the drawing data.
And importing the field terrain BIM model with the completed detailed field model into the Fuzor in an equal proportion mode, converting the project construction total progress planning MPP format file into an XML format data file, importing the XML format data file into the Fuzor, sequentially linking each component of the detailed field model of each stage according to the project construction total progress planning, and performing construction simulation through the equal proportion model.
And in the construction step 6), the data list includes concrete volume, brick laying quantity, submersible pump model, pipe, connecting piece or steel consumption.
In the construction step 6), the construction layout drainage system comprises positioning and paying off, groove excavation, substrate treatment, masonry, pipeline paving, assembly connection, water prevention, irrigation or water passing construction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The construction method of the foundation pit site drainage system based on the BIM is characterized by comprising the following construction steps:
1) acquiring three-dimensional point location information of a foundation pit field, and establishing a high-precision field terrain BIM (building information modeling) model;
2) performing flowing water analysis according to the field topography BIM model, simulating gravity and water flow trend caused by altitude difference change, judging topography concave land in the field topography BIM model, and providing a planning direction for the first processing work of the foundation pit field;
3) interfering aiming at adverse effects caused by height difference, generating a design field curved surface according to a design field elevation drawn by construction deployment, carrying out earthwork coupling simulation on the design field curved surface and a field terrain BIM model, carrying out height difference balance on the field terrain BIM model according to the principle of high excavation and low filling, and carrying out point location data extraction and derivation on the processed field terrain BIM model for project field lofting construction;
4) respectively integrating the foundation pit supporting system model and the municipal pipeline model into a field topography BIM model;
5) building detailed site models of supporting pile construction, engineering pile construction and foundation pit earthwork excavation projects in equal proportion on site terrain BIM models; based on the accumulated water pumping and draining principle of comprehensively and dynamically deploying drainage facilities in a foundation pit field at different construction stages, performing repeated arrangement rehearsal on various drainage facilities, and establishing a BIM (building information modeling) model of a drainage system after obtaining the optimal parameter ratio;
6) deriving a data list and a drawing based on a BIM model of the drainage system, purchasing materials according to the data of the list, and constructing and arranging the drainage system according to the drawing;
7) and in actual construction, collecting the construction process data of the drainage system in real time, and feeding back the data to the BIM of the drainage system for information input and verification.
2. The BIM-based construction method of a foundation pit site drainage system according to claim 1, wherein in the construction step 1), RTK and a total station are used to collect or actually measure topographic data of the foundation pit site so as to obtain three-dimensional point location information of the foundation pit site.
3. The construction method of a BIM-based foundation pit site drainage system according to claim 2, wherein in the construction step 1), the three-dimensional point location information is imported into Civil3D in the form of a point file, the point file is converted into a terrain three-dimensional curved surface model in proportion to the site, and abnormal points existing in the terrain three-dimensional curved surface model are corrected to form the site terrain BIM model.
4. The BIM-based foundation pit site drainage system construction method according to any one of claims 1 to 3, wherein in the construction step 4), according to a total construction design drawing, drawing data of a foundation pit support system is disassembled, Revit is introduced, and a foundation pit support system model is built according to the drawing data.
5. The BIM-based construction method for the foundation pit site drainage system according to any one of claims 1 to 3, wherein municipal pipeline drawing data is disassembled and Revit is imported according to municipal survey data, and a municipal pipeline model is built according to the drawing data.
6. The BIM-based foundation pit site drainage system construction method of any one of claims 1 to 3, wherein a site topography BIM model equal proportion model with a completed detail site model is introduced into the Fuzor, meanwhile, a project construction total progress plan MPP format file is converted into an XML format data file and introduced into the Fuzor, each component of the detail site model of each stage is sequentially linked according to the project construction total progress plan, and construction simulation is performed through the equal proportion model.
7. A BIM based foundation pit site drainage system construction method according to any one of claims 1 to 3, wherein in the construction step 6), the data list is concrete volume, number of brickwork, submersible pump model, pipe, connector or steel amount.
8. A method as claimed in any one of claims 1 to 3, wherein the construction step 6) includes positioning and paying-off, trench digging, substrate processing, building, pipeline paving, assembly connection, waterproofing, irrigation or water construction in the construction arrangement drainage system.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115168976A (en) * | 2022-08-17 | 2022-10-11 | 中交一公局第七工程有限公司 | BIM technology-based foundation pit water level visualization system and method |
| CN116956641A (en) * | 2023-09-19 | 2023-10-27 | 北京市第三建筑工程有限公司 | BIM technology-based foundation pit limb ancient tree root system protection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115168976A (en) * | 2022-08-17 | 2022-10-11 | 中交一公局第七工程有限公司 | BIM technology-based foundation pit water level visualization system and method |
| CN115168976B (en) * | 2022-08-17 | 2023-11-28 | 中交一公局第七工程有限公司 | BIM technology-based foundation pit water level visualization system and method |
| CN116956641A (en) * | 2023-09-19 | 2023-10-27 | 北京市第三建筑工程有限公司 | BIM technology-based foundation pit limb ancient tree root system protection method |
| CN116956641B (en) * | 2023-09-19 | 2023-12-29 | 北京市第三建筑工程有限公司 | BIM technology-based foundation pit limb ancient tree root system protection method |
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