CN117932945A - Visual subway engineering simulation system based on slurry shield BIM technology - Google Patents
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Abstract
The invention provides a visual subway engineering simulation system based on a slurry shield BIM technology, which belongs to the technical field of shield construction and comprises the following components: and an extraction module: each construction project in the subway shield construction process is obtained, and the construction characteristics of each construction project are extracted; the construction module comprises: constructing a project model of a construction project based on construction characteristics and combining with BIM technology; and a display module: performing flow arrangement according to the subway shield construction assembly line model, performing independent flow simulation on each project model, and displaying flow simulation results; and an adjustment module: and acquiring different abnormal construction operations in the simulation process according to the display result, determining a simulation correction strategy of each abnormal construction operation, and carrying out feedback adjustment on the simulation process related to each abnormal construction operation to realize engineering splicing of the whole project. The problems that independent feedback and integral feedback of the construction process cannot be timely carried out, and the construction progress is delayed are solved.
Description
Technical Field
The invention relates to the technical field of shield construction, in particular to a visual subway engineering simulation system based on a slurry shield BIM technology.
Background
Along with the continuous acceleration of the urban process, subways are taken as important components of urban traffic, and the construction and development of the subways are also increasingly emphasized.
However, the traditional subway construction mode is often directly constructed, and simulation and visual display of a construction flow are lacking, so that when problems occur, the problems that independent feedback and integral feedback of a construction process cannot be timely carried out exist, and the construction progress is delayed.
Therefore, the invention provides a visual subway engineering simulation system based on a slurry shield BIM technology.
Disclosure of Invention
The invention provides a visual subway engineering simulation system based on a slurry shield BIM technology, which is used for solving the defects that simulation and visual display of a construction flow are lacking in the prior art, and when problems occur, independent feedback and integral feedback of a construction process cannot be performed in time, so that the construction progress is delayed.
In one aspect, the invention provides a visual subway engineering simulation system based on slurry shield BIM technology, comprising:
And an extraction module: each construction project in the subway shield construction process is obtained, and the construction characteristics of each construction project are extracted respectively;
the construction module comprises: constructing a project model corresponding to a construction project based on the construction characteristics and combining with a BIM technology;
And a display module: performing flow arrangement on all project models according to a subway shield construction assembly line, performing independent flow simulation on each project model, and performing visual display on flow simulation results;
And an adjustment module: and acquiring different abnormal construction operations in the simulation process of different project models according to the visual display result, determining a simulation correction strategy of each abnormal construction operation, and carrying out independent feedback adjustment and integral feedback adjustment on the simulation process related to each abnormal construction operation to realize engineering splicing of the whole project.
According to the visual subway engineering simulation system based on the slurry shield BIM technology, the extraction module comprises:
a first acquisition unit: acquiring all original data related to subway shield construction;
classification unit: classifying the original data, and acquiring various construction projects in the subway shield construction process according to classification results;
a second acquisition unit: acquiring detailed information and specific data of each construction project;
extraction unit: and analyzing the detailed information and the specific data based on a data mining technology, and extracting the construction characteristics of each construction project.
According to the visual subway engineering simulation system based on the slurry shield BIM technology, which is provided by the invention, a building module comprises:
A first determination unit: determining the scale and complexity of each construction item according to the construction characteristics;
A second determination unit: determining corresponding construction components and equipment according to the scale and the complexity of each construction project;
the construction unit: and constructing a project model corresponding to the construction project based on the construction members and equipment and combining BIM technology.
According to the visual subway engineering simulation system based on the slurry shield BIM technology, which is provided by the invention, a display module comprises:
Grouping unit: grouping all project models according to different stages of a construction assembly line;
A sequencing unit: sequencing the models in each group according to the construction steps;
A third acquisition unit: based on the sequencing result, each item model is subjected to independent flow simulation, and basic parameters of each stage and logic relations among stages are obtained;
A third determination unit: and displaying the basic parameters of each stage and the logic relations among the stages in the form of a tree diagram by utilizing a visualization tool, and determining the structure of the whole construction flow and the relations among the links.
According to the visual subway engineering simulation system based on the slurry shield BIM technology, provided by the invention, an adjusting module comprises:
fourth acquisition unit: obtaining abnormal behaviors and modes in the simulation process of different project models according to the visual display results;
A fourth determination unit: determining different abnormal construction operations according to the abnormal behaviors and modes;
fifth acquisition unit: specific data information of different abnormal construction operations is obtained;
Fifth determining unit: determining the properties and the influence ranges of different abnormal construction operations according to specific data information;
a sixth determination unit: determining a degree of influence of each abnormal construction job based on the property and the influence range;
seventh determining unit: and determining a corresponding simulation correction strategy according to the influence degree.
According to the visual subway engineering simulation system based on the slurry shield BIM technology, which is provided by the invention, the adjustment module further comprises:
sixth acquisition unit: acquiring simulation process related to each abnormal construction operation, and determining
Monitoring data in real time;
Seventh acquisition unit: acquiring the specific condition of each abnormal construction operation according to the real-time monitoring data;
analysis unit: inputting the specific conditions into an abnormal construction operation database, and entering
Performing real-time analysis;
feedback adjustment unit: the analysis result is subjected to independent feedback adjustment and overall feedback adjustment,
And obtaining a corresponding independent adjustment strategy and an integral adjustment strategy, so as to realize engineering splicing of the integral project.
The visual subway engineering simulation system based on the slurry shield BIM technology provided by the invention further comprises the following components:
A first acquisition module: acquiring original engineering data of each construction project;
The calculation module: extracting meta-attributes corresponding to the original engineering data of each construction project and determining characteristic indexes of each meta-attribute;
the generation module is used for: determining the engineering characteristics of each construction project, and generating simulation data of each construction project according to the engineering characteristics of each construction project and the characteristic indexes of the meta attribute;
a first determination module: acquiring construction conditions, engineering equipment and construction geological requirement condition parameters of each construction project, and further determining a finite difference data deviation value of each construction project;
a first correction module: correcting the simulation data of each construction project based on the finite difference data deviation value of the construction project, and obtaining corrected simulation data;
And a second acquisition module: taking the corrected simulation data of each construction project as a training sample, and training to obtain a settlement prediction model of each construction project;
A second determination module: determining construction parameter information of each construction project in the simulated construction based on a settlement prediction model of the construction project, and determining a preliminary development parameter value according to the construction parameter information;
And a second correction module: performing numerical simulation on the shield sewer according to the initially-drawn tunneling parameter values, and correcting the initially-drawn construction parameters according to the settlement of stratum and the floating condition of the duct piece;
And a debugging module: aiming at the deformation characteristics of the numerical simulation result, debugging tunneling parameters under the corresponding classification conditions based on the classification conditions of deformation parameter information affecting stratum and floating parameter information affecting pipe pieces until the simulation result reaches the preset deformation requirement, and obtaining the final parameters of each construction project;
and (3) an analog module: and simulating the final parameters of each construction project as simulation parameters of a project model of the construction project, and visually displaying simulation results.
According to the visual subway engineering simulation system based on the slurry shield BIM technology, before each construction project in the subway shield construction process is obtained and the construction characteristics of each construction project are respectively extracted, the system is further used for:
And a third acquisition module: before each construction project in the subway shield construction process is obtained and the construction characteristics of each construction project are respectively extracted, the original mapping data, the space data and the geometric data of a shield construction site and the key information of the original mapping data, the space data and the geometric data are obtained;
and a third determination module: determining construction safety elements of each construction project according to the space data, the geometric data and the key information;
And an extraction module: determining project construction safety perfection parameters according to construction safety factors of each construction project, and extracting construction characteristics of each construction project by taking the project construction safety perfection parameters as reference samples;
Wherein, tenth acquisition module includes:
An eighth determination unit: determining the spatial attribute and the geometric attribute of a shield construction site;
a ninth determination unit: respectively determining the formal description of the space mapping data and the formal description of the geometric mapping data in the shield construction site according to the space attribute and the geometric attribute of the shield construction site;
tenth determination unit: determining respective corresponding description factors of the space mapping data formal description and the geometric mapping data formal description;
matching unit: matching the original mapping data of the shield construction site based on the respective corresponding description factors, and determining the space description mapping data and the geometric description mapping data of the shield construction site according to the matching result;
Summarizing unit: the data features of the spatially descriptive survey data and the geometrically descriptive survey data are used as key information for both.
Compared with the prior art, the application has the following beneficial effects:
by extracting construction characteristics of each construction project in the construction project process and constructing project models by combining with BIM technology, design efficiency can be improved, further, problems in the construction process can be found out in time by performing flow arrangement and independent flow simulation on all project models, independent feedback adjustment and integral feedback adjustment are performed on the problems, correction strategies of abnormal construction operation in the independent construction projects and the integral construction projects can be determined, construction progress is guaranteed, and engineering splicing of the integral projects is realized.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a visual subway engineering simulation system based on a slurry shield BIM technology, which is provided by the embodiment of the invention;
fig. 2 is a schematic structural diagram of an extraction module according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
The embodiment of the invention provides a visual subway engineering simulation system based on a slurry shield BIM technology, which mainly comprises the following components as shown in figure 1:
And an extraction module: each construction project in the subway shield construction process is obtained, and the construction characteristics of each construction project are extracted respectively;
the construction module comprises: constructing a project model corresponding to a construction project based on the construction characteristics and combining with a BIM technology;
And a display module: performing flow arrangement on all project models according to a subway shield construction assembly line, performing independent flow simulation on each project model, and performing visual display on flow simulation results;
And an adjustment module: and acquiring different abnormal construction operations in the simulation process of different project models according to the visual display result, determining a simulation correction strategy of each abnormal construction operation, and carrying out independent feedback adjustment and integral feedback adjustment on the simulation process related to each abnormal construction operation to realize engineering splicing of the whole project.
In this embodiment, each construction item includes: the method comprises the steps of excavating and propelling a shield machine, transporting and processing earthwork, and installing and detaching the shield machine.
In this embodiment, the construction features include:
geological conditions: such as formation type, lithology, water content, etc.;
Type and parameters of shield machine: such as cutter diameter, rotational speed, torque, etc.;
Construction environment: such as ground water level, temperature, humidity, etc.;
progress requirements: such as construction limit, node planning, etc.;
safety standard: such as risk level, emergency plan, etc. in the construction process;
Quality standard: such as tunnel linear control accuracy, ground settlement limit, etc.
In this embodiment, the BIM technique is a digital construction design and management method that integrates various aspects involved in a construction project by creating a three-dimensional building model.
In this embodiment, the project model is a visualization tool, and is a fictitious simulation environment, including all key elements of the construction project, such as tasks, personnel, resources, progress, risks, and the like.
In the embodiment, the subway shield construction assembly line refers to a system for ensuring the progress, quality and safety of engineering through a series of orderly and cooperative construction links and process flows in the construction of a subway tunnel, and comprises various stages of early preparation, civil engineering, equipment installation, debugging and test, operation management and the like.
In this embodiment, the abnormal construction work is, for example, a construction temperature that is too high or too low, and a machine parameter setting error.
In this embodiment, the simulation correction strategy is a method of simulating and solving problems that may occur in advance before the abnormal construction work actually occurs.
In this embodiment, the individual feedback adjustment is a method for individually analyzing and processing the links with problems according to the specific situation aiming at the abnormal situations or problems in the construction process,
In this embodiment, the overall feedback adjustment refers to comprehensive adjustment and improvement performed on problems in terms of overall engineering quality or progress and the like during construction, and involves evaluation and improvement of the overall project.
The beneficial effects of the technical scheme are as follows: by extracting construction characteristics of each construction project in the construction project process and constructing project models by combining with BIM technology, design efficiency can be improved, further, problems in the construction process can be found out in time by performing flow arrangement and independent flow simulation on all project models, independent feedback adjustment and integral feedback adjustment are performed on the problems, correction strategies of abnormal construction operation in the independent construction projects and the integral construction projects can be determined, construction progress is guaranteed, and engineering splicing of the integral projects is realized.
Example 2:
Based on embodiment 1, the extraction module according to the embodiment of the present invention, as shown in fig. 2, includes:
a first acquisition unit: acquiring all original data related to subway shield construction;
classification unit: classifying the original data, and acquiring various construction projects in the subway shield construction process according to classification results;
a second acquisition unit: acquiring detailed information and specific data of each construction project;
extraction unit: and analyzing the detailed information and the specific data based on a data mining technology, and extracting the construction characteristics of each construction project.
In this embodiment, the raw data includes:
Geological survey data: before shield construction, the stratum needs to be surveyed in detail, and geological survey data comprise stratum names, thicknesses, lithology and water content.
Designing a drawing: the method comprises a tunnel line design drawing, a shield tunneling machine design drawing and a tunneling plan.
Operating parameters of the shield machine: the shield machine can generate a large amount of operation parameter data such as speed, pressure, torque and cutter abrasion in the operation process.
Monitoring data: various monitoring devices such as a ground surface subsidence monitor, a ground water level monitor, a soil pressure monitor and the like can be arranged in the shield construction process.
Construction log: including excavation progress, personnel configuration, equipment use, etc.
In this embodiment, the detailed information includes construction data and construction conditions of each construction project.
In this embodiment, the construction features include:
geological conditions: such as formation type, lithology, water content, etc.;
Type and parameters of shield machine: such as cutter diameter, rotational speed, torque, etc.;
Construction environment: such as ground water level, temperature, humidity, etc.;
progress requirements: such as construction limit, node planning, etc.;
safety standard: such as risk level, emergency plan, etc. in the construction process;
Quality standard: such as tunnel linear control accuracy, ground settlement limit, etc.
The beneficial effects of the technical scheme are as follows: by classifying the related original data of the subway shield construction, each construction project in the construction process is determined according to the classification result, construction workers can know the construction projects conveniently, construction planning is done, construction efficiency is improved, further, construction characteristics of each construction project are extracted according to detailed information and specific data of the construction projects, finer management and optimization can be carried out on each project, and therefore the whole project is guaranteed to be more efficient, quality and safe.
Example 3:
Based on embodiment 2, the embodiment of the invention constructs a module, which includes:
A first determination unit: determining the scale and complexity of each construction item according to the construction characteristics;
A second determination unit: determining corresponding construction components and equipment according to the scale and the complexity of each construction project;
the construction unit: and constructing a project model corresponding to the construction project based on the construction members and equipment and combining BIM technology.
In this embodiment, construction elements refer to specific materials and components used in building, construction or other engineering applications to construct a building, structure or infrastructure, which are typically made from various types of raw materials, such as brick, cement, steel, wood, and the like.
In this embodiment, construction equipment refers to machines and tools used in construction, installation, and other engineering fields, including shovels, concrete mixers, cranes, cutters, hammers, and electric saws.
The beneficial effects of the technical scheme are as follows: the corresponding construction components and equipment are determined through the scale and complexity of the construction project, so that the construction efficiency and quality can be improved, further, a project model of the construction project is constructed by combining a BIM technology, the construction process can be managed and coordinated better, the structure and the composition of the project can be known more intuitively through the model, and potential problems can be found timely.
Example 4:
based on embodiment 3, the display module according to the embodiment of the present invention includes:
Grouping unit: grouping all project models according to different stages of a construction assembly line;
A sequencing unit: sequencing the models in each group according to the construction steps;
A third acquisition unit: based on the sequencing result, each item model is subjected to independent flow simulation, and basic parameters of each stage and logic relations among stages are obtained;
A third determination unit: and displaying the basic parameters of each stage and the logic relations among the stages in the form of a tree diagram by utilizing a visualization tool, and determining the structure of the whole construction flow and the relations among the links.
In this embodiment, the construction line is formed by splitting a large-scale engineering into a plurality of small parts, and arranging work on each part independently, and on the construction line, each part has a specific purpose and task, and common stages of the construction line include: design stage, construction preparation stage, installation stage, construction stage and debugging stage.
In this embodiment, separate flow simulation refers to performing independent simulation for each construction step.
In this embodiment, the basic parameters of each stage include: the amount of resources required, the amount of manpower, the time required, etc.
The beneficial effects of the technical scheme are as follows: by grouping all the project models according to different stages of construction flowing water and sequencing the models in each group, higher efficiency and better quality are achieved, further, each project model is subjected to independent flow simulation according to sequencing results, logic relations among stages are determined, the relations among projects can be understood more intuitively, when problems occur in a certain stage, other stages which are affected can be determined rapidly, and construction efficiency is improved.
Example 5:
based on embodiment 4, the adjusting module of the embodiment of the present invention includes:
fourth acquisition unit: obtaining abnormal behaviors and modes in the simulation process of different project models according to the visual display results;
A fourth determination unit: determining different abnormal construction operations according to the abnormal behaviors and modes;
fifth acquisition unit: specific data information of different abnormal construction operations is obtained;
Fifth determining unit: determining the properties and the influence ranges of different abnormal construction operations according to specific data information;
a sixth determination unit: determining a degree of influence of each abnormal construction job based on the property and the influence range;
seventh determining unit: and determining a corresponding simulation correction strategy according to the influence degree.
In this embodiment, the abnormal behavior in the simulation process is, for example: abnormal data, non-convergence of the model and poor stability of the simulation result.
In this embodiment, specific data information is, for example, a steel bar position error, a type error, such as a material error, a size error.
In this embodiment, the scope of influence refers to whether the influence of the abnormal construction work affects only an independent process or affects other items.
In this embodiment, the influence degree refers to the influence of the abnormal construction operation on the construction project, for example, the error of the placement position of the steel bars is corrected, if the material of the steel bars is wrong, the shutdown is needed, the steel bars with correct materials are obtained again, and the influence degree is large.
In this embodiment, the simulation correction strategy is a method of simulating and solving problems that may occur in advance before the abnormal construction work actually occurs.
The beneficial effects of the technical scheme are as follows: the shutdown visual display result obtains abnormal behaviors and modes in the simulation process, so that different abnormal construction operations can be determined, problems in the construction process can be found in time, further, the influence degree is determined according to the property and influence range of the abnormal construction operations, the corresponding simulation correction strategy is determined, the construction plan and flow can be optimized through simulation and analysis, and the correction strategy is more targeted, so that the construction efficiency and quality are improved.
Example 6:
Based on embodiment 5, the adjusting module of the embodiment of the present invention further includes:
sixth acquisition unit: acquiring simulation process related to each abnormal construction operation, and determining
Monitoring data in real time;
Seventh acquisition unit: acquiring the specific condition of each abnormal construction operation according to the real-time monitoring data;
analysis unit: inputting the specific conditions into an abnormal construction operation database, and entering
Performing real-time analysis;
feedback adjustment unit: the analysis result is subjected to independent feedback adjustment and overall feedback adjustment,
And obtaining a corresponding independent adjustment strategy and an integral adjustment strategy, so as to realize engineering splicing of the integral project.
In this embodiment, the analysis unit is configured to:
acquiring each constraint index of each abnormal construction operation based on specific conditions, and acquiring the conditional triggering probability of each constraint index by combining an abnormal construction operation database;
according to the conditional triggering probability and risk index of each constraint index of each abnormal construction operation, calculating the correction difficulty coefficient of the abnormal construction operation:
wherein, Correction difficulty coefficient expressed as i-th abnormal construction operation,/>Expressed as a predictive correction factor of the ith abnormal construction work under the current construction work,/>Risk index expressed as i-th abnormal construction job,/>Expressed as the number of constraint indexes in the ith abnormal construction work,/>Conditional trigger probability expressed as kth constraint index,/>Interference factor expressed as kth constraint index,/>Item overall correction ratio expressed as i-th abnormal construction job,/>Worker individual correction ratio shown as i-th abnormal construction job,/>/>, For the i-th abnormal construction jobAnd/>Larger of (5)/>The accumulated sum of the larger ones of all abnormal construction operations;
according to the correction difficulty coefficient of each abnormal construction operation, selecting the abnormal construction operation meeting the preset requirement for correction, and taking the correction result as an analysis result;
Otherwise, performing shutdown check.
In this embodiment, the constraint index may be the degree of delay in the progress of the project, affecting the quality
Degree of the degree.
In this embodiment, the conditional triggering probability refers to, for example, that there is a constraint index that is "the delay degree of the project progress", and then in the case of delay of the project progress, other methods need to be considered to accelerate the progress, for example, to increase the worker or increase the working time, and the conditional triggering probability of this constraint index is that, after the constraint index that is the delay of the project progress is reached, the worker or increase the working time is adopted to accelerate the progress.
In this embodiment, the real-time monitoring data of the abnormal construction work refers to data collected when the construction work is monitored in real time at the construction site, such as:
environmental parameters such as temperature, humidity, etc.: the temperature, humidity and air quality of the construction site are monitored.
Construction progress and quality: and recording the change and completion conditions of the engineering progress and the construction quality detection result.
State of the mechanical device: the state and the service condition of mechanical equipment at the construction site, such as fault codes, fault time and the like, are monitored.
Use case of safety facility: the usage of the safety facilities, such as the usage amount and usage time of the safety helmets, safety belts and the like, is recorded.
In this embodiment, the specific case of the abnormal construction work is that the machine is in a fatigue state, for example, the temperature is too low or too high.
In this embodiment, the abnormal construction job database is a system for storing and managing data related to an abnormal construction job, and contains various information related to the abnormal construction job, such as environmental parameters, construction progress and quality, machine status, safety equipment use, the number of workers, and identification.
The beneficial effects of the technical scheme are as follows: the real-time monitoring data of each abnormal construction operation is obtained, various conditions in the construction process can be known, the abnormal problems can be found and solved in time, so that the smooth progress and personal safety of engineering are ensured, further, the specific conditions of each abnormal construction operation are obtained and analyzed in real time, the corresponding independent adjustment strategy and the integral adjustment strategy are obtained, the construction can be efficiently performed, and the risk is reduced.
Example 7:
based on embodiment 6, the embodiment of the present invention further includes:
A first acquisition module: acquiring original engineering data of each construction project;
The calculation module: extracting meta-attributes corresponding to the original engineering data of each construction project and determining characteristic indexes of each meta-attribute;
the generation module is used for: determining the engineering characteristics of each construction project, and generating simulation data of each construction project according to the engineering characteristics of each construction project and the characteristic indexes of the meta attribute;
a first determination module: acquiring construction conditions, engineering equipment and construction geological requirement condition parameters of each construction project, and further determining a finite difference data deviation value of each construction project;
a first correction module: correcting the simulation data of each construction project based on the finite difference data deviation value of the construction project, and obtaining corrected simulation data;
And a second acquisition module: taking the corrected simulation data of each construction project as a training sample, and training to obtain a settlement prediction model of each construction project;
A second determination module: determining construction parameter information of each construction project in the simulated construction based on a settlement prediction model of the construction project, and determining a preliminary development parameter value according to the construction parameter information;
And a second correction module: performing numerical simulation on the shield sewer according to the initially-drawn tunneling parameter values, and correcting the initially-drawn construction parameters according to the settlement of stratum and the floating condition of the duct piece;
And a debugging module: aiming at the deformation characteristics of the numerical simulation result, debugging tunneling parameters under the corresponding classification conditions based on the classification conditions of deformation parameter information affecting stratum and floating parameter information affecting pipe pieces until the simulation result reaches the preset deformation requirement, and obtaining the final parameters of each construction project;
and (3) an analog module: and simulating the final parameters of each construction project as simulation parameters of a project model of the construction project, and visually displaying simulation results.
In this embodiment, the original engineering data of each construction project is, for example: engineering scale, budget, predicted completion time.
In this embodiment, the meta-attribute is key information describing the entity object, which may be found by analyzing the data structure or using a specific algorithm, for example, in the design drawing, the meta-attribute may include a tile type, a position, a size, etc.; in the bill of materials, meta-attributes may include name, specification, model number, quantity, and the like.
In this embodiment, the feature index of the meta attribute includes count, proportion, mean, standard deviation, etc., for example, for a design drawing, we can calculate the number of each tile type to know the usage of different types of tiles; for a bill of materials, the sales ratio for each material may be calculated.
In this embodiment, the engineering features of the construction project refer to some common or unique attributes that may be possessed during implementation of the project, such as a building or infrastructure, such as: complexity, time pressure, resource requirements, high risk.
In this embodiment, the simulation data of the construction project is one method of simulating the actual construction project in the virtual environment.
In this embodiment, the construction conditions of the construction project refer to basic elements required for performing engineering construction, such as: topography conditions, engineering geological conditions, and hydrometeorological conditions.
In this embodiment, the finite difference data deviation value of the construction project refers to an error existing between data and a true value due to various reasons during data processing.
In this embodiment, the settlement prediction model is a computer model that predicts settlement situations that may occur during use of a building or other civil engineering structure by analyzing historical data and environmental factors.
In this embodiment, the construction parameter information refers to various parameter data involved in the construction process, such as: water content, soil layer thickness, steel bar diameter, concrete strength, etc.
In this embodiment, the tunneling parameter values refer to various parameters and values thereof that need to be considered in the tunneling process, such as: tunneling speed, drill bit parameters, supporting parameters and blasting parameters.
In this embodiment, the parameter information affecting the deformation of the formation mainly includes: geological conditions, construction modes, load sizes and construction cycles.
In this embodiment, the parameter information affecting the floating of the segment mainly includes: geological conditions, design and construction parameters, construction environment and tunnel parameters.
In this embodiment, the preset deformation requirement generally refers to a limitation that is preset in order to ensure the safety, stability and normal use of the structure during the construction process, and that the function and the use value of the structure can be maintained when the structure or the member is deformed to some extent.
The beneficial effects of the technical scheme are as follows: the original engineering data and the meta attribute characteristic indexes of the construction project are acquired, calculated, generated and determined to generate the simulation data, so that the engineering project can be better understood and managed, errors can be reduced, time and cost can be saved, further, the construction conditions and equipment requirements are determined, the simulation data are corrected to train a prediction model, the accuracy, the repeatability and the portability of the prediction model are improved, the actual construction parameters are determined based on the prediction model, the numerical simulation is performed, the parameters are adjusted according to the results, and finally the parameters are used as the model for simulation, so that the accuracy and the effectiveness of the prediction result can be ensured.
Example 8:
Based on the basis of embodiment 7, before each construction project in the subway shield construction process is obtained and the construction characteristics of each construction project are respectively extracted, the system is further used for:
And a third acquisition module: before each construction project in the subway shield construction process is obtained and the construction characteristics of each construction project are respectively extracted, the original mapping data, the space data and the geometric data of a shield construction site and the key information of the original mapping data, the space data and the geometric data are obtained;
and a third determination module: determining construction safety elements of each construction project according to the space data, the geometric data and the key information;
And an extraction module: determining project construction safety perfection parameters according to construction safety factors of each construction project, and extracting construction characteristics of each construction project by taking the project construction safety perfection parameters as reference samples;
Wherein, tenth acquisition module includes:
An eighth determination unit: determining the spatial attribute and the geometric attribute of a shield construction site;
a ninth determination unit: respectively determining the formal description of the space mapping data and the formal description of the geometric mapping data in the shield construction site according to the space attribute and the geometric attribute of the shield construction site;
tenth determination unit: determining respective corresponding description factors of the space mapping data formal description and the geometric mapping data formal description;
matching unit: matching the original mapping data of the shield construction site based on the respective corresponding description factors, and determining the space description mapping data and the geometric description mapping data of the shield construction site according to the matching result;
Summarizing unit: the data features of the spatially descriptive survey data and the geometrically descriptive survey data are used as key information for both.
In this embodiment, the raw mapping data of the shield construction site refers to measurements made on the construction site prior to the start of the shield construction, and these data include: geological structure, ground water level, ground elevation, surrounding buildings and obstacles, etc.
In this embodiment, the spatial data includes: position, size, path information of the shield tunnel, position, posture, speed and other information of the shield machine.
In this embodiment, the geometric data includes: the central line of the shield tunnel, the contour line of the shield tunnel and the cross section of the shield tunnel.
In this embodiment, the construction safety element of each construction project includes: personnel safety, material safety, equipment safety and environmental safety.
In this embodiment, the construction safety improvement parameters are, for example, what range the environmental temperature needs to be controlled to, and the choice of materials.
In this embodiment, the dataform description may be a two-dimensional topography, three-dimensional modeling, laser scanning.
In this embodiment, the spatial mapping data formally describes the description factors:
Coordinate system: and determining a space reference system of the position information, such as a geographic coordinate system, a plane rectangular coordinate system, a spherical coordinate system and the like.
Elevation reference: representing the assumed value of the elevation reference plane, such as absolute elevation, relative elevation, normal elevation, etc.
Position accuracy: uncertainty of the location point, such as flatness, height, direction angle, distance, etc., is described.
Geographic elements: information reflecting aspects of surface morphology, functions, attributes and the like, such as roads, water bodies, vegetation, buildings and the like.
Thematic layer: and describing ground object information in a certain area, such as remote sensing images, digital mapping, three-dimensional models and the like.
In this embodiment, the geometric mapping data formally describes the descriptive factors:
position accuracy: the accuracy degree of the geometric figure position information, such as coordinate accuracy, angle accuracy, elevation accuracy and the like, is described.
Topological relation: spatial relationships between geometric figures, such as intersecting, containing, adjacent, etc., are described.
Shape descriptor: shape characteristics describing geometry, such as perimeter, area, convex hull.
The beneficial effects of the technical scheme are as follows: the construction safety factors and project construction safety improvement parameters of each construction project are determined by acquiring the original mapping data of the shield construction site, the corresponding space data and the geometric data and the key information of the two, the construction characteristics of each construction project are extracted, the characteristics of the construction project can be rapidly determined, and the subsequent construction of a project model is facilitated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. Visual subway engineering simulation system based on slurry shield BIM technique, characterized by comprising:
And an extraction module: each construction project in the subway shield construction process is obtained, and the construction characteristics of each construction project are extracted respectively;
the construction module comprises: constructing a project model corresponding to a construction project based on the construction characteristics and combining with a BIM technology;
And a display module: performing flow arrangement on all project models according to a subway shield construction assembly line, performing independent flow simulation on each project model, and performing visual display on flow simulation results;
And an adjustment module: and acquiring different abnormal construction operations in the simulation process of different project models according to the visual display result, determining a simulation correction strategy of each abnormal construction operation, and carrying out independent feedback adjustment and integral feedback adjustment on the simulation process related to each abnormal construction operation to realize engineering splicing of the whole project.
2. The visual subway engineering simulation system based on slurry shield BIM technology according to claim 1, wherein the extracting module includes:
a first acquisition unit: acquiring all original data related to subway shield construction;
classification unit: classifying the original data, and acquiring various construction projects in the subway shield construction process according to classification results;
a second acquisition unit: acquiring detailed information and specific data of each construction project;
extraction unit: and analyzing the detailed information and the specific data based on a data mining technology, and extracting the construction characteristics of each construction project.
3. The visual subway engineering simulation system based on slurry shield BIM technology according to claim 1, wherein the constructing module includes:
A first determination unit: determining the scale and complexity of each construction item according to the construction characteristics;
A second determination unit: determining corresponding construction components and equipment according to the scale and the complexity of each construction project;
the construction unit: and constructing a project model corresponding to the construction project based on the construction members and equipment and combining BIM technology.
4. The visual subway engineering simulation system based on slurry shield BIM technology according to claim 1, wherein the display module includes:
Grouping unit: grouping all project models according to different stages of a construction assembly line;
A sequencing unit: sequencing the models in each group according to the construction steps;
A third acquisition unit: based on the sequencing result, each item model is subjected to independent flow simulation, and basic parameters of each stage and logic relations among stages are obtained;
A third determination unit: and displaying the basic parameters of each stage and the logic relations among the stages in the form of a tree diagram by utilizing a visualization tool, and determining the structure of the whole construction flow and the relations among the links.
5. The visual subway engineering simulation system based on slurry shield BIM technology according to claim 1, wherein the adjustment module includes:
fourth acquisition unit: obtaining abnormal behaviors and modes in the simulation process of different project models according to the visual display results;
A fourth determination unit: determining different abnormal construction operations according to the abnormal behaviors and modes;
fifth acquisition unit: specific data information of different abnormal construction operations is obtained;
Fifth determining unit: determining the properties and the influence ranges of different abnormal construction operations according to specific data information;
a sixth determination unit: determining a degree of influence of each abnormal construction job based on the property and the influence range;
seventh determining unit: and determining a corresponding simulation correction strategy according to the influence degree.
6. The visual subway engineering simulation system based on slurry shield BIM technology according to claim 1, wherein the adjustment module further includes:
sixth acquisition unit: acquiring simulation process related to each abnormal construction operation, and determining
Monitoring data in real time;
Seventh acquisition unit: acquiring the specific condition of each abnormal construction operation according to the real-time monitoring data;
analysis unit: inputting the specific conditions into an abnormal construction operation database, and entering
Performing real-time analysis;
feedback adjustment unit: the analysis result is subjected to independent feedback adjustment and overall feedback adjustment,
And obtaining a corresponding independent adjustment strategy and an integral adjustment strategy, so as to realize engineering splicing of the integral project.
7. The visual subway engineering simulation system based on the slurry shield BIM technology according to claim 1, further comprising:
A first acquisition module: acquiring original engineering data of each construction project;
The calculation module: extracting meta-attributes corresponding to the original engineering data of each construction project and determining characteristic indexes of each meta-attribute;
the generation module is used for: determining the engineering characteristics of each construction project, and generating simulation data of each construction project according to the engineering characteristics of each construction project and the characteristic indexes of the meta attribute;
a first determination module: acquiring construction conditions, engineering equipment and construction geological requirement condition parameters of each construction project, and further determining a finite difference data deviation value of each construction project;
a first correction module: correcting the simulation data of each construction project based on the finite difference data deviation value of the construction project, and obtaining corrected simulation data;
And a second acquisition module: taking the corrected simulation data of each construction project as a training sample, and training to obtain a settlement prediction model of each construction project;
A second determination module: determining construction parameter information of each construction project in the simulated construction based on a settlement prediction model of the construction project, and determining a preliminary development parameter value according to the construction parameter information;
And a second correction module: performing numerical simulation on the shield sewer according to the initially-drawn tunneling parameter values, and correcting the initially-drawn construction parameters according to the settlement of stratum and the floating condition of the duct piece;
And a debugging module: aiming at the deformation characteristics of the numerical simulation result, debugging tunneling parameters under the corresponding classification conditions based on the classification conditions of deformation parameter information affecting stratum and floating parameter information affecting pipe pieces until the simulation result reaches the preset deformation requirement, and obtaining the final parameters of each construction project;
and (3) an analog module: and simulating the final parameters of each construction project as simulation parameters of a project model of the construction project, and visually displaying simulation results.
8. The visual subway engineering simulation system based on the slurry shield BIM technology according to claim 1, further comprising:
And a third acquisition module: before each construction project in the subway shield construction process is obtained and the construction characteristics of each construction project are respectively extracted, the original mapping data, the space data and the geometric data of a shield construction site and the key information of the original mapping data, the space data and the geometric data are obtained;
and a third determination module: determining construction safety elements of each construction project according to the space data, the geometric data and the key information;
And an extraction module: determining project construction safety perfection parameters according to construction safety factors of each construction project, and extracting construction characteristics of each construction project by taking the project construction safety perfection parameters as reference samples;
Wherein, tenth acquisition module includes:
An eighth determination unit: determining the spatial attribute and the geometric attribute of a shield construction site;
a ninth determination unit: respectively determining the formal description of the space mapping data and the formal description of the geometric mapping data in the shield construction site according to the space attribute and the geometric attribute of the shield construction site;
tenth determination unit: determining respective corresponding description factors of the space mapping data formal description and the geometric mapping data formal description;
matching unit: matching the original mapping data of the shield construction site based on the respective corresponding description factors, and determining the space description mapping data and the geometric description mapping data of the shield construction site according to the matching result;
Summarizing unit: the data features of the spatially descriptive survey data and the geometrically descriptive survey data are used as key information for both.
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