WO2021128675A1

WO2021128675A1 - Bim technology-based method for constructing underground continuous wall

Info

Publication number: WO2021128675A1
Application number: PCT/CN2020/087080
Authority: WO
Inventors: 施曙东; 罗攀; 岳国柱; 庞晓明; 李军代; 李江峰; 仕佳; 张玮; 姚凯; 刘亚晴; 袁帅; 邱轶; 邓国民
Original assignee: 上海浦东路桥(集团)有限公司
Priority date: 2019-12-24
Filing date: 2020-04-26
Publication date: 2021-07-01
Also published as: CN111062081A

Abstract

Disclosed is a BIM technology-based method for constructing an underground continuous wall. The method comprises the steps of: performing 3D modeling for an underground continuous wall design construction drawing according to a project BIM application standard so as to acquire a project BIM model; on the basis of the project BIM model, performing collision and error checking between a underground continuous wall steel bar, a locking pipe and a grouting pipe and adjusting and optimizing the project BIM model according to the result of the check; using the project BIM model to perform 3D simulation to simulate the construction process; during onsite construction, performing 3D visual disclosure for onsite construction workers according to the project BIM model; instructing the onsite construction according to the project BIM model and the construction process simulation; and once construction is complete, accepting the construction according to the project BIM model. By means of the present invention, the construction quality and accuracy of an underground continuous wall is improved, and construction progress is accelerated.

Description

A construction method of underground continuous wall based on BIM technology

Technical field

The invention relates to a construction method, in particular to a construction method of an underground continuous wall based on BIM technology.

Background technique

With the ever-increasing update and development of building construction technology, traditional extensive construction modes, various construction methods, and construction techniques have become more and more inferior in terms of green construction such as project resource consumption, quality and safety, and environmental protection. Among them, the construction of the underground continuous wall has the characteristics of strong construction technology periodicity, multiple soil layers, and large excavation depth of foundation pits.

Diaphragm wall is a kind of supporting structure of foundation pit. Diaphragm wall is a foundation project that uses trenching machinery on the ground. Along the peripheral axis of the deep excavation project, a long and narrow deep trench is excavated under the condition of mud protection. After the trench is cleared, the steel cage is hoisted in the trench. , And then use the conduit method to fill the underwater concrete to build a unit trough section, so as to build a continuous reinforced concrete wall underground, as a water interception, anti-seepage, load-bearing, and water-retaining structure.

In the traditional construction method, the construction of the underground diaphragm wall project usually still only relies on the traditional two-dimensional drawings. It is difficult to detect or discover the conflicts in the design and construction in advance. It is difficult to optimize the process, and the traditional underground The continuous wall construction technology has problems such as low construction efficiency, high construction cost, low construction accuracy, and high construction risk.

Summary of the invention

In order to improve the construction quality of the underground continuous wall and speed up the construction progress, the present invention provides an underground continuous wall construction method based on BIM technology, which realizes the integrated management of underground continuous wall construction information, three-dimensional visualization, model review, comparison and acceptance, and greatly improves the construction Quality and precision. Specifically, the technical scheme of the present invention is as follows:

The BIM technology-based underground continuous wall construction method disclosed in the present invention includes the steps: S1, according to the project BIM application standard, 3D modeling the underground continuous wall design and construction drawing to obtain the project BIM model; S2, based on the project BIM model , Carry out collision and error inspections among the underground diaphragm wall steel bars, lock pipes, and grouting pipes, and adjust and optimize the BIM model of the project according to the inspection results; S3, use the BIM model of the project to perform three-dimensional simulation to simulate construction Process; S4, in the on-site construction process, according to the project BIM model, three-dimensional visualization of the on-site construction personnel; S5, according to the project BIM model and construction process simulation, guide the on-site construction; S6, after the completion of the construction, Perform construction acceptance according to the BIM model of the project.

Preferably, the step S2 specifically includes: S21, using Revit software to perform collision and error checking on the underground diaphragm wall reinforcement, the key pipe, and the grouting pipe in the project BIM model; or S22, the project BIM model Imported into Navisworks, through the Navisworks software, the underground diaphragm wall steel bar, the lock pipe, and the grouting pipe in the BIM model are checked for collision and error.

Preferably, the project BIM model is the whole construction process model of the underground continuous wall construction project; the elevation and coordinate system adopted by the project BIM model are consistent with reality; and the information database of the project BIM model contains basic parameter information and Construction information.

Preferably, the basic parameter information includes: spatial location parameter information and physical size information; the construction information includes: construction time information, model change information, construction material information, and acceptance information.

Preferably, the construction method of the underground continuous wall based on the BIM technology further includes: S25, deriving the model data of the BIM model of the project to guide construction preparation; specifically including: deriving the engineering quantities of steel and concrete based on the BIM model of the project , Instruct the procurement of construction materials; and/or, import the steel cage model data of the BIM model of the project into automated equipment, and instruct the automated equipment to produce and process the steel cage; and/or, change the elevation of the project’s BIM model, The coordinate system data is exported to the total station to guide the measurement and stakeout on site; and/or, based on the project BIM model, export a two-dimensional CAD drawing.

Preferably, the step S3 specifically includes: S31, using Autodesk Revit to export the NWC and DAE files of the project BIM model, and import them into NavisWorks and Lumion software for construction simulation to form 3D, 4D, and 5D construction simulation videos.

Preferably, the three-dimensional visualization presentation in step S4 specifically includes any one or more of BIM three-dimensional model presentation presentation, construction 4D, 5D simulation animation presentation, VR immersive experience presentation, and 3D printing physical presentation.

Preferably, the step S6 specifically includes: S61, comparing the BIM model of the project with the actual appearance of the site; checking whether the appearance of the underground diaphragm wall is qualified; S62, comparing the BIM model data of the project with the actual measured data on the site , Check whether the quality of the underground diaphragm wall is qualified.

Preferably, the on-site construction in step S5 includes: line measurement, guide wall construction, slurry preparation, trough excavation, foundation clearance, lock pipe hoisting, concrete pouring, lock extraction, and wall toe grouting .

Preferably, the construction method of the underground continuous wall based on the BIM technology further includes the step: S7, after the acceptance is passed, the BIM model of the project is optimized and modified according to the acceptance information to form the construction completion model of the underground continuous wall.

The present invention includes at least one of the following technical effects:

(1) The present invention introduces BIM technology into the construction process of the underground continuous wall, and uses BIM technology to guide the construction of the underground continuous wall, which can predict the problems in the construction, find the problems in advance, and solve the problems. The construction management has been strengthened, and the construction quality has been greatly improved while reducing waste and shortening the construction period.

(2) The present invention uses BIM technology to construct the project BIM model of the underground diaphragm wall project. Based on this model, it realizes the integrated management of underground diaphragm wall construction information, three-dimensional visualization, detailed processing and production of steel components, and model review and comparison acceptance, which greatly improves Improve the construction quality and precision.

(3) The present invention uses BIM technology to construct a three-dimensional model, which is easier to accept than 2D plane construction drawings, improves the accuracy of each construction personnel's drawing recognition, and avoids construction errors caused by inaccurate drawing recognition, thereby ensuring construction Quality and cost saving.

(4) The present invention uses BIM technology to perform construction simulation before construction, avoiding construction risks and hidden dangers. In addition, construction simulation and construction simulation can also accurately reflect the existence of problems, so that corresponding rush or correction plans can be formulated according to the exposed problems, and the problems can be discovered and solved in time to avoid greater losses.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

Fig. 1 is a flowchart of an embodiment of a construction method of an underground continuous wall based on BIM technology of the present invention;

2 is a flowchart of another embodiment of the construction method of underground continuous wall based on BIM technology of the present invention;

Fig. 3 is a flowchart of another embodiment of a construction method of an underground continuous wall based on BIM technology of the present invention.

Detailed ways

In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are proposed for a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obstructing the description of this application.

It should be understood that when used in this specification and appended claims, the term "comprising" indicates the existence of the described features, wholes, steps, operations, elements and/or components, but does not exclude one or more other The existence or addition of features, wholes, steps, operations, elements, components, and/or collections.

In order to make the drawings concise, the drawings only schematically show the parts related to the present invention, and they do not represent the actual structure of the product. In addition, in order to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is schematically drawn, or only one of them is marked. In this article, "a" not only means "only this one", but can also mean "more than one".

It should be further understood that the term "and/or" used in the specification and appended claims of this application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations .

In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings and obtained Other embodiments.

The invention discloses a construction method of an underground continuous wall based on BIM technology. The embodiment is shown in Fig. 1 and includes the following steps:

S1, according to the project BIM application standard, carry out 3D modeling on the design and construction drawing of the underground diaphragm wall, and obtain the project BIM model;

Specifically, according to the project BIM application standard, the design and construction drawings are 3D modeling using Autodesk Revit software to obtain the project BIM model. The project BIM model refers to the project BIM model of the underground continuous wall construction project, which contains the underground continuous wall construction station. The models of the various components that need to be used, for example, the BIM model of the project includes: underground continuous walls, guide walls, reinforcement cages of underground continuous walls, trough forming machines, lock pipes, crawler cranes, construction sites, and so on. Project BIM standards refer to the guidelines for the application of BIM technology in projects, and are the project BIM application guidelines. All participating parties should uniformly apply BIM technology in accordance with this standard. Project BIM standards include: BIM application planning, BIM modeling standards, BIM delivery standards, sub-item split standards, BIM component naming rules, etc.

S2, based on the project BIM model, check collisions and errors among the underground diaphragm wall steel bars, lock pipes, and grouting pipes, and adjust and optimize the project BIM model according to the inspection results;

Specifically, after the BIM model is built, it is necessary to perform collision check based on the constructed project BIM model, especially the collision and error check between the underground diaphragm wall reinforcement, the lock pipe, and the grouting pipe in the project BIM model. If errors are found, the model can be adjusted and optimized in time to prevent them.

S3, using the BIM model of the project to perform three-dimensional simulation to simulate the construction process;

Specifically, the BIM three-dimensional live simulation technology is used to simulate the construction conditions of the underground diaphragm wall, which can discover possible problems in the construction in advance, and the construction personnel can formulate corresponding rush or correction plans according to the exposed problems, and find and solve them in time Problems, to avoid greater losses. In addition, the use of BIM technology to simulate construction before construction also avoids construction risks and hidden dangers.

S4, during the on-site construction process, according to the BIM model of the project, perform a three-dimensional visualization of the on-site construction personnel;

Specifically, the BIM model of the project constructed using BIM technology is a visual three-dimensional model. Therefore, the on-site construction personnel can understand the specific plan more intuitively based on the model. In addition, the BIM model of the project can also be used to make an animated video, so as to provide technical confession to the construction workers, which can be used as a supplement to the paper plan.

Using the form of three-dimensional visual confession, construction personnel will be easier to understand, the content of the confession will be carried out more thoroughly, and it will be more convenient for front-line construction managers to control the quality control points.

S5, according to the project BIM model and its construction process simulation, guide the on-site construction;

Specifically, after the optimization of the construction simulation, according to the optimized BIM model of the project and the construction simulation, the construction personnel will be guided on-site construction.

S6: After the construction is completed, carry out construction acceptance according to the BIM model of the project.

In this embodiment, BIM technology is introduced in the construction process of the underground continuous wall, and the BIM technology is used to guide the construction of the underground continuous wall, which can predict the problems in the construction, find the problems in advance, and solve the problems. The construction management has been strengthened, and the construction quality has been greatly improved while reducing waste and shortening the construction period.

Another embodiment of the present invention, as shown in FIG. 2, includes:

Specifically, the project BIM model is the entire construction process model of the underground diaphragm wall construction project; the elevation and coordinate system adopted by the project BIM model are consistent with the actual situation; and the information database of the project BIM model contains basic parameter information and Construction information. Wherein, the basic parameter information includes: spatial location parameter information and physical size information; the construction information includes: construction time information, model change information, construction material information, and acceptance information.

In this embodiment, the informationized BIM technology is introduced, and the three-dimensional model and digital technology are used to form an information database consistent with the actual completed situation. Through this information database, problems in construction can be predicted, problems can be discovered in advance, and problems can be solved in advance. The construction management has been strengthened, and the construction quality has been greatly improved while reducing waste and shortening the construction period.

S21, using Revit software or Navisworks software to perform collision and error checking on the underground diaphragm wall steel bars, lock pipes, and grouting pipes in the BIM model, and optimize the project BIM model.

Specifically, based on the constructed BIM model of the project, the collision and error check between the underground diaphragm wall reinforcement, the lock pipe, and the grouting pipe are carried out in Autodesk Revit software, and adjustment and optimization are carried out. Of course, we can also use Navisworks software for collision checking and other optimization work, but in the modeling phase, it is more convenient to directly use Revit's collision checking. The biggest advantage of using Revit to check model collisions is that there is no need to guide NWC to check again, which is convenient and fast. It can be carried out during modeling, and problems can be found and adjusted immediately.

However, compared to Revit, Navisworks is more professional and has more functions. It can export a more formal collision report, which contains information such as component ID number, location, and pictures, which is more intuitive and convenient. After modification, it can also be convenient for secondary inspection. Import the project BIM model into Navisworks, perform auxiliary inspection through the software, and check the model according to the report. Collect, categorize, and report all the problems in a unified manner, and finally modify and adjust the project BIM model according to the feedback information to obtain the final project BIM model.

S31, using Autodesk Revit to export the NWC and DAE files of the BIM model of the project, and import them into NavisWorks and Lumion software for construction simulation to form 3D, 4D, and 5D construction simulation videos.

Specifically, the three-dimensional visualized presentation specifically includes: BIM three-dimensional model presentation presentation, construction 4D, 5D simulation animation presentation, VR immersive experience presentation, 3D printing physical presentation of any one or more.

The use of three-dimensional visualization is easier to accept than 2D plane construction drawings, which improves the accuracy of each construction personnel's recognition of the drawings, avoids construction errors caused by inaccurate recognition of the drawings, thereby ensuring the quality of construction and saving costs.

S5, according to the BIM model of the project and its construction process simulation, guide the on-site construction; specifically, the on-site construction includes: measurement and setting out, guide wall construction, mud preparation, trench excavation, foundation clearing, locking pipe hoisting, Concrete pouring, lock out, wall toe grouting.

On the whole, the overall workflow is BIM modeling → data export → technical disclosure → on-site construction. The on-site construction process is measuring line setting → guide wall construction → mud preparation → trough excavation → foundation clearance → lock pipe hoisting → steel cage hoisting → concrete pouring → lock pulling out → wall toe grouting → acceptance.

S61: Compare the BIM model of the project with the physical appearance of the site; check whether the appearance of the underground diaphragm wall is qualified;

S62: Compare the BIM model data of the project with the actual measured data on site, and check whether the quality of the underground diaphragm wall is qualified.

This embodiment uses BIM technology to construct a project BIM model of an underground continuous wall project. Based on this model, it realizes integrated management of underground continuous wall construction information, three-dimensional visualization, model review and comparison and acceptance, which greatly improves construction quality and accuracy.

Another embodiment of the present invention, on the basis of any of the foregoing embodiments, further includes after step S2 and before step S5:

S25, export the model data of the BIM model of the project to guide construction preparation; specifically including:

(1) Based on the BIM model of the project, the engineering quantities of steel and concrete are derived to guide the procurement of construction materials; in this way, it is convenient to purchase for procurement and subsequent cost analysis.

(2) Import the steel cage model data of the BIM model of the project into the automation equipment, and guide the production and processing of the steel cage by the automation equipment;

Specifically, the constructed project BIM model is used to exchange information and data with the automated processing equipment, and the relevant data can be directly imported into the automated equipment to directly produce the column steel template. Realize the refined processing and production of reinforced components.

(3) Export the elevation and coordinate system data of the BIM model of the project to the total station to guide the site to carry out measurement and stakeout;

The total station, that is, the Electronic Total Station (Electronic Total Station), is a high-tech measuring instrument that integrates light, machine, and electricity. The total station is the abbreviation of the total station electronic tachometer. An optoelectronic instrument that combines an electronic theodolite, a photoelectric rangefinder and a microprocessor. Exporting the elevation data and coordinate system data in the project BIM model to the total station can guide the measurement and stakeout on site, which is efficient and fast, and is not easy to make mistakes.

(4) Based on the project BIM model, export two-dimensional CAD drawings to facilitate subsequent construction guidance.

Another embodiment of the present invention, as shown in FIG. 3, on the basis of any of the above embodiments, after the acceptance is passed, the BIM model of the project is optimized and modified according to the acceptance information to form an underground continuous wall construction completion model, that is As-built model.

In addition, on the basis of any of the above-mentioned embodiments, the project BIM model is used to perform three-dimensional simulation to simulate the construction process. In addition to simulating construction conditions, it can also perform construction schedule simulation and construction organization simulation.

Construction schedule simulation: Simulation technology can make reasonable construction plans during the project construction process, accurately grasp the construction schedule in 4D, and optimize the use of construction resources. Construction is a highly dynamic process. As the scale of construction projects continues to expand, the complexity continues to increase, making Construction project management has become extremely complicated. By linking BIM with the construction schedule, and integrating spatial information and time information into a visual 4D (3D+Time) model, the construction process of the entire building can be reflected intuitively and accurately. The construction source and the scientific site layout, unified management and control of the construction schedule, resources and quality of the entire project, in order to shorten the construction period, reduce costs, and improve quality.

Construction organization simulation: Through BIM, the key or difficult part of the project can be simulated for buildability, and the construction and installation plan can be analyzed and optimized on a monthly, daily, and hourly basis. For some important construction links or key parts and constructions that adopt new construction techniques Simulate and analyze construction guidance measures such as site layout to improve the feasibility of the plan. The construction party can further optimize and improve the original installation plan to improve the construction efficiency and the safety of the construction plan.

Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

A construction method of underground continuous wall based on BIM technology is characterized in that it comprises the following steps:

S1, according to the project BIM application standard, carry out 3D modeling on the design and construction drawing of the underground diaphragm wall, and obtain the project BIM model;

S2, based on the project BIM model, check collisions and errors among the underground diaphragm wall steel bars, lock pipes, and grouting pipes, and adjust and optimize the project BIM model according to the inspection results;

S3, using the BIM model of the project to perform three-dimensional simulation to simulate the construction process;

S4, during the on-site construction process, according to the BIM model of the project, perform a three-dimensional visualization of the on-site construction personnel;

S5, according to the project BIM model and its construction process simulation, guide the on-site construction;

S6: After the construction is completed, carry out construction acceptance according to the BIM model of the project.
The construction method of an underground continuous wall based on BIM technology according to claim 1, wherein the step S2 specifically includes:

S21, using Revit software to check the collision and error of the underground diaphragm wall steel bar, the lock pipe, and the grouting pipe in the BIM model of the project; or

S22: Import the project BIM model into Navisworks, and perform collision and error checking on the underground diaphragm wall steel bars, lock pipes, and grouting pipes in the BIM model through the Navisworks software.
The construction method of an underground continuous wall based on BIM technology according to claim 1, characterized in that the project BIM model is the whole construction process model of the underground continuous wall construction project; the elevation and coordinates used in the project BIM model The system is consistent with reality; and the information database of the project BIM model contains basic parameter information and construction information.
The construction method of an underground continuous wall based on BIM technology according to claim 3, characterized in that, the basic parameter information includes: spatial position parameter information, physical size information; the construction information includes: construction time information, construction Progress information, model change information, construction material information, and acceptance information.
The construction method of an underground continuous wall based on BIM technology according to claim 1, characterized in that it further comprises:

S25, export the model data of the BIM model of the project to guide construction preparation; specifically including any one or more of the following:

Based on the BIM model of the project, derive the engineering quantities of steel and concrete, and guide the procurement of construction materials;

Import the steel cage model data of the BIM model of the project into the automation equipment, and guide the production and processing of the steel cage by the automation equipment;

Export the elevation and coordinate system data of the BIM model of the project to the total station to guide the site to carry out measurement and stakeout;

Based on the BIM model of the project, a two-dimensional CAD drawing is derived.
The construction method of an underground continuous wall based on BIM technology according to claim 1, wherein the step S3 specifically includes:

S31, using Autodesk Revit to export the NWC and DAE files of the BIM model of the project, and import them into NavisWorks and Lumion software for construction simulation to form 3D, 4D, and 5D construction simulation videos.
The construction method of an underground continuous wall based on BIM technology according to claim 1, wherein the three-dimensional visualization presentation in step S4 specifically includes: BIM three-dimensional model presentation presentation, construction 4D, 5D simulation animation presentation, VR Any one or more of immersive experience confession and 3D printing physical confession.
The construction method of an underground continuous wall based on BIM technology according to claim 1, wherein the step S6 specifically includes:

S61: Compare the BIM model of the project with the physical appearance of the site; check whether the appearance of the underground diaphragm wall is qualified;

S62: Compare the BIM model data of the project with the actual measured data on site, and check whether the quality of the underground diaphragm wall is qualified.
The construction method of an underground continuous wall based on BIM technology according to claim 1, characterized in that, the on-site construction in step S5 includes: measuring and setting out, guide wall construction, mud preparation, trench excavation, cleaning The foundation and the lock pipe are hoisted, concrete is poured, the lock is pulled out, and the wall toe is grouted.
The construction method of an underground continuous wall based on BIM technology according to any one of claims 1-9, characterized in that it further comprises the steps of:

S7: After the acceptance is passed, the BIM model of the project is optimized and modified according to the acceptance information to form a completion model of the underground continuous wall construction.