CN114997584A - BIM visualization-based high arch dam construction full life cycle dynamic simulation analysis method - Google Patents
BIM visualization-based high arch dam construction full life cycle dynamic simulation analysis method Download PDFInfo
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Abstract
The invention discloses a BIM visualization technology-based dynamic simulation analysis method for the whole life cycle of high arch dam construction, which mainly comprises the following steps: 1) building a BIM system with unified construction information and simulation information of the high arch dam; 2) according to the completed construction information, updating parameters in the simulation system, updating the construction simulation progress, generating a progress scheme, optimizing the construction scheme, and generating a visual model of the re-predicted construction scheme in the BIM system; 3) and (3) construction progress control: during the staged engineering construction, monitoring construction parameters in real time by using a BIM system, and comparing the construction parameters with a preset construction period; 4) and after the periodic engineering is finished, quickly generating the three-dimensional image of the result by using a BIM system, and updating the predicted value. The invention can effectively control the construction progress, supervise the construction quality and ensure the construction efficiency.
Description
Technical Field
The invention relates to the field of high arch dam body pouring construction, in particular to a high arch dam construction full life cycle dynamic simulation analysis method based on a BIM (building information model) visualization technology.
Background
The construction of the high arch dam occupies an important position in the construction of water conservancy and hydropower engineering, and the construction quality and the construction speed of the high arch dam directly influence the safety and the construction period of the engineering. Because the construction process of the high arch dam is influenced by various factors such as natural environment, structural form, process technology, organization mode, pouring machinery, building materials and the like, the planning arrangement, the progress control and the resource optimization configuration are very complex; meanwhile, the high arch dam is large in construction time span and high in pouring strength in peak period, and stage target requirements such as diversion, flood control, dam body water retaining and water storage power generation need to be considered in the pouring construction process, so that great difficulty and potential risk are brought to construction organization, planning and progress control. In actual water conservancy and hydropower engineering, in order to pursue advanced power generation benefits, the dam construction process is often required to be accelerated, and the construction period is shortened. Therefore, the real-time simulation analysis of the high arch dam construction process has important significance for ensuring the construction period and the construction quality.
At present, the simulation analysis technology for the construction of the high arch dam has many defects: firstly, the simulation process and the result expression of the system are not intuitive enough, the interactivity of the simulation process is not strong, and the simulation process is not easy to be accepted by engineering technicians, and the engineering technicians are usually not aware of how to go when facing a complex system operation interface and complex simulation result data, so that the system cannot be well utilized; secondly, the BIM is only used as a three-dimensional model in many cases, the application of BIM information expression is not sufficient, and the standardization degree of the BIM coding mode of the hydraulic and hydroelectric engineering is not high, so that the information communication and sharing among all systems of hydraulic engineering construction simulation control are difficult; thirdly, the expression form of the high arch dam construction simulation analysis process is single, the expression is mainly carried out in a form chart mode, and the advantages and disadvantages of the construction scheme and the real-time construction deviation condition cannot be visually expressed; fourthly, the construction simulation analysis is mostly one-way research, the comparison and feedback on the actual construction condition are less, and the expression form is not intuitive enough.
Disclosure of Invention
Aiming at the prior art, the invention provides a BIM visualization technology-based dynamic simulation analysis method for the whole life cycle of high arch dam construction, so as to realize the analysis and control of the whole process of dam pouring construction by using a BIM system and a construction simulation technology, and ensure the pouring quality of a dam and complete the dam according to time.
In order to solve the technical problem, the invention provides a BIM visualization-based dynamic simulation analysis method for the full life cycle of high arch dam construction, which mainly comprises the following steps: building a high arch dam for pouring BIM, performing construction simulation analysis based on BIM data, and realizing construction progress control; the contents are respectively as follows
Step one, building a high arch dam and pouring BIM, comprising the following steps:
1-1) establishing a three-dimensional model of the dam according to design data, and dividing the three-dimensional model into different dam sections; dividing dam sections into different dam blocks based on actual construction requirements and simulation planning; dividing the joint grouting area according to the design data;
1-2) numbering the divided dam blocks and grouting areas according to the following numbering rules:
the dam blocks are numbered: DB-BDXX-BKXX-XXXXEL-XX, dam-dam section number-dam block number-initial elevation-dam block height;
grouting area numbering: JF-GQXX-GFXX-XXXXEL-XX, wherein each character in sequence represents: seam-irrigation area number-irrigation seam number-initial elevation-irrigation area height;
1-3) acquiring dam construction information in real time through a real-time monitoring system of the construction process of the high arch dam, wherein the dam construction information comprises construction progress information, construction resource allocation and pouring information, the construction progress information comprises dam block pouring data and grouting progress data, the construction resource allocation comprises cable crane operation process data, and codes are established according to the information, and the coding rule is as follows: Target-Object-Attribute-Time-Value-Unit, wherein each field of characters sequentially represent: construction object-observation attribute-observation time-observation value and unit;
1-4) determining a data interface of the three-dimensional model of the dam established in the step 1-1) and dam construction information, fusing the dam construction data obtained in the step 1-3) with the three-dimensional model by taking a construction object as connection, and constructing the high arch dam pouring BIM with unified data structures of the three-dimensional model, the simulation information obtained by using a high arch dam construction dynamic simulation system and the dam construction information obtained by using a high arch dam construction process real-time monitoring system;
step two, construction simulation analysis based on BIM data comprises the following steps:
2-1) determining a data interface of the high arch dam construction dynamic simulation system and the high arch dam construction process real-time monitoring system based on the high arch dam pouring BIM established in the step one, wherein the high arch dam pouring BIM acquires dam construction information;
2-2) the dynamic simulation system for high arch dam construction carries out statistical analysis on dam construction information to obtain construction parameter data; respectively calculating the prior probability and the likelihood function of the construction parameter data by adopting a Bayesian updating method, and then calculating the posterior probability to obtain updated simulation construction parameter data, thereby realizing the real-time updating of the construction parameters of the dynamic simulation system for high arch dam construction;
2-3) based on the simulation construction parameter data updated in real time in the step 2-2), performing simulation analysis calculation by using the dynamic simulation system for the high arch dam construction, thereby establishing a high arch dam construction progress scheme, and simultaneously performing optimization analysis on the joint grouting time period, the height of the grouting area, the maximum cantilever height, the orifice part layering scheme, the pouring layer thickness and the number of cable cranes of the scheme to obtain a simulation analysis result, namely the simulation information;
2-4) storing the simulation analysis result obtained in the step 2-3) into a simulation information database, and updating data of the high arch dam pouring BIM according to simulation information in the simulation database;
step three, construction progress control, including:
3-1) comparing construction progress information in the dam construction information acquired in real time in the step 1-3) with construction progress information of an original construction plan, and evaluating the influence of progress deviation on a construction period according to a simulation analysis result in the step 2-3);
and 3-2) carrying out dynamic adjustment and optimization simulation according to the evaluation result of the construction progress deviation in the step 3-1), and generating an adjustment scheme and a progress plan of the construction at the next stage.
Furthermore, in the first step of the invention, the established high arch dam three-dimensional model, the construction information and the simulation information adopt a unified coding mode, and the coding rule comprises the following steps:
the dam blocks are numbered: DB-BDXX-BKXX-XXXXEL-XXX, expressed as: dam-dam section number-dam block number-initial elevation-dam block height;
grouting area numbering: JF-GQXX-GFXX-XXXXEL-XX, expressed as: seam-irrigation area number-irrigation seam number-initial elevation-irrigation area height;
and (3) construction information coding: Target-Object-Attribute-Time-Value-Unit, expressed as: construction object-observation attribute-observation time-observation value-unit;
and (3) encoding construction simulation information: Target-Object-Attribute-Time-Value-Unit, expressed as: construction object-observation attribute-observation time-observation value-unit.
The dam construction information in the step 1-3) is divided into a progress class and a parameter class, and the coding is performed by using the coding rule mentioned in the step 1-3), and the coding method comprises the following steps:
the schedule class: dam segment number-start time-end time-square quantity-cable machine number;
number of grouting area-start time-end time-area;
parameter classes: machine number-parameter type-distribution type-parameter mean-parameter variance-unit.
The specific content of the step 3-1) comprises the following steps: the dam construction information and the simulation information are arranged on a panel for comparative analysis, the dam pouring progress is tracked by adopting a front line method, the remaining time method is adopted for determining the front point, and the process is as follows: reversely determining a front point according to the time length of the expected remaining construction period by using the terminal point in the cross-road diagram of the original planned construction period and the expected remaining construction period obtained by the simulation calculation; if the point falls on the left side of the checking line, the progress accumulated to the current moment is behind the planned progress; otherwise, the progress is advanced, and if the point falls on the check line, the actual progress is consistent with the plan; if the cutoff time of the expected construction period needs to be further judged, moving the front point to an inspection line, drawing a crosswalk diagram in the forward direction according to the expected remaining construction period time length obtained by simulation, and setting the time corresponding to the end point as the expected completion time of dam construction; and visually displaying the comparative analysis result in the BIM, and marking a progress delay part and a part needing to be adjusted and optimized by adopting different colors.
The content of the step 3-2) is as follows: and preliminarily drawing up a plurality of optimization schemes according to design requirements, simulating the pouring process and progress of different construction schemes by the construction simulation system, analyzing the influence degree of construction parameters in different construction schemes and simulation information on the construction progress, selecting an optimal scheme, and fusing the optimal scheme with the three-dimensional model again.
Further, in order to realize more vivid BIM models and real-time animations, dam construction data are converted according to a unified IFC standard format, non-structural data are converted into structural data, the structural data are connected to a BIM database in an butt joint mode to realize the fusion of dam construction information and dam three-dimensional models, animation description is carried out on construction real-time dynamic states by using an IFC attribute extension mechanism, and then Open GL technology is used for rendering, so that more vivid BIM models and real-time animations are realized.
By adopting an open database interconnection (ODBC) technology, a data interface with C # language development data standard, model making, coding specification and interaction standard unification is adopted to interconnect the dam construction information database, the simulation information database and the BIM database, so as to realize centralized management of operation data and data sharing.
In the step 3-1), the high arch dam pouring BIM visualizes the updated and optimized simulation data result, and simultaneously compares the simulation data result with the construction condition corresponding to the dam construction information, so as to provide a basis for construction deviation analysis and optimization and realize bidirectional coupling data analysis of construction simulation and BIM.
Compared with the prior art, the invention has the beneficial effects that:
(1) the problems of single simulation analysis means, low informatization degree and low efficiency of the traditional high arch dam construction are solved;
(2) the BIM unified coding mode of the high arch dam construction simulation analysis is provided, and the intercommunication interconnection and data sharing of a construction simulation system, a construction real-time monitoring system and a BIM model are realized;
(2) by utilizing a three-dimensional visualization technology, a database technology, a BIM technology and a construction simulation technology, the integrated management of massive and multi-source data is realized, the automatic statistics and analysis of the data are realized, and the efficiency of construction simulation analysis is improved;
(3) the method realizes the analysis of the whole process from before pouring, in pouring to after pouring, breaks through the original limitation that the pouring result is analyzed only after the pouring is finished, and better controls the pouring construction quality.
Drawings
FIG. 1 is an overall flow chart of the present invention;
FIG. 2 is a flow chart of a construction dynamic simulation;
FIG. 3 is a flow chart of a progress deviation impact analysis.
Detailed Description
The invention provides a BIM visualization technology-based dynamic simulation analysis method for the whole life cycle of high arch dam construction, which is designed according to the following design concept: firstly, building a BIM system with unified construction information and simulation information of the high arch dam; then, according to the completed construction information, updating parameters in the simulation system, updating the construction simulation progress, generating a progress scheme, optimizing the construction scheme, and generating a visual model of the re-predicted construction scheme in the BIM system; during the staged engineering construction, a BIM system is used for monitoring construction parameters in real time and comparing the construction parameters with a preset construction period, so that the construction progress control is realized; and after the periodic engineering is finished, quickly generating the three-dimensional image of the result by using a BIM system, and updating the predicted value. The invention can effectively control the construction progress, supervise the construction quality and ensure the construction efficiency.
The invention will be further described with reference to the following drawings and specific examples, which are not intended to limit the invention in any way.
As shown in fig. 1, the method for analyzing the full-life-cycle dynamic simulation of the high arch dam construction based on the BIM visualization provided by the invention mainly comprises the steps of carrying out parametric modeling according to initial construction design information of the high arch dam, acquiring dam construction information by using a real-time monitoring system in the high arch dam construction process, carrying out simulation by using a high arch dam construction dynamic simulation system, uploading data of the two systems to a corresponding database, and visualizing the whole construction scene by using a Unity 3D visualization technology, wherein the method comprises the following specific steps:
1) building a high arch dam pouring BIM model:
1-1) establishing a three-dimensional model of the dam according to design data, and dividing the three-dimensional model into different dam sections; dividing the dam section into different dam blocks based on actual construction requirements and a simulation plan; and dividing the joint grouting area according to the design data.
According to the initial design requirement, when the dam blocks are divided, the height of each dam block is generally 3m, the height of each dam block close to the bottom and the position where the gold junctions are installed is generally 1m, and each dam block is divided into 0.1m dam block layers according to the simulation requirement.
1-2) numbering the dam blocks and grouting areas according to the numbering rule:
the dam blocks are numbered: DB-BDXX-BKXX-XXXXEL-XXX, expressed as: dam-dam section number-dam block number-initial elevation-dam block height;
grouting area numbering: JF-GQXX-GFXX-XXXXEL-XX, expressed as: seam-irrigation area number-irrigation seam number-initial elevation-irrigation area height.
1-3) sensing dam construction data in real time through a real-time monitoring system of the high arch dam construction process, wherein the data comprises construction progress information (including dam block pouring data and grouting progress data), construction resource allocation (including cable crane operation process data) and pouring information, and relevant coding rules are established according to the information:
Target-Object-Attribute-Time-Value-Unit, expressed as: construction object-observation attribute-observation time-observation value-unit.
The monitoring equipment of the real-time monitoring system comprises an unmanned aerial vehicle, a displacement sensor, a three-dimensional laser scanner, equipment with photographing and shooting functions and the like, and meanwhile, collected data are transmitted back in real time through an automatic recording method, and information is counted in a corresponding table.
1-4) developing a three-dimensional model and dam construction data interface, taking a construction object as connection, fusing construction process data and the dam three-dimensional model, and constructing a BIM system with the three-dimensional model, simulation information and construction information unified.
2) The construction dynamic simulation flow is shown in fig. 2 based on the construction simulation analysis of the BIM data: initializing simulation parameters and states, judging whether the pouring of the dam pouring block is finished or not, if not, selecting pouring machinery, selecting the pouring dam block, determining the casting starting time and the pouring duration, and refreshing system parameters and states to perform the next cycle; and if the pouring is finished, performing statistical analysis and result output, finishing the simulation, transmitting simulation analysis result data into the database for the BIM model to call, and entering the next cycle. The concrete process of the construction simulation analysis based on the BIM data is as follows:
and 2-1) developing a data interface of the dynamic simulation system for the high arch dam construction and the real-time construction monitoring system based on the BIM system, and acquiring construction process data.
2-2) the simulation system carries out statistical analysis on actual construction data to obtain construction parameter data, a Bayesian updating method is adopted to respectively calculate the prior probability and the likelihood function of the construction parameters, the posterior probability is calculated to obtain updated construction parameters, and real-time updating of the simulation construction parameters of the high arch dam is realized.
2-3) carrying out simulation analysis calculation based on the simulation construction parameters updated in real time in the step 2-2), establishing a high arch dam construction progress scheme, and simultaneously carrying out optimization analysis on the joint grouting time period, the height of the grouting area, the maximum cantilever height, the orifice part layering scheme, the pouring layer thickness and the number of cable cranes of the scheme.
2-4) returning the simulation analysis result in the step 2-3) to the simulation database, and correspondingly updating the BIM according to the simulation information in the simulation database.
3) And (3) construction progress control:
3-1) comparing the real-time construction information acquired in the step 1-3) with the construction progress of the original plan according to the real-time construction information, and evaluating the influence of the progress deviation on the construction period according to the simulation result of the step 2-3).
c. The size and the position of the progress deviation are different, the influence on the later-stage progress is different, the influence analysis of the progress deviation is shown in fig. 3, after the progress deviation occurs in a certain work, whether the work is in a key line is judged, if the work is in the key line, the total construction period is influenced, the progress needs to be predicted and analyzed in real time, a progress adjusting measure is taken, and the adjusting measure is returned to the control system; if the current is not in the key line, the next step is carried out; judging whether the total time difference is larger than the total time difference, if so, influencing the total construction period, needing real-time prediction and analysis of progress, taking progress adjustment measures and returning the adjustment measures to a control system; if the time difference is not greater than the total time difference, the next step is carried out; judging whether the time difference is greater than the free time difference, if so, influencing subsequent work, needing real-time prediction and analysis of progress, taking progress adjustment measures and returning the adjustment measures to a control system; if the time difference is not greater than the free time difference, the follow-up work is not influenced, and the system directly returns to the progress control system.
3-2) carrying out dynamic adjustment and optimization simulation according to the evaluation of the construction progress deviation in the step 3-1) to generate an optimal adjustment scheme and a progress plan of the construction at the next stage.
In step 1), the established high arch dam three-dimensional model, the construction information and the simulation information adopt a unified coding mode, and the coding rule is as follows:
the dam blocks are numbered: DB-BDXX-BKXX-XXXXEL-XXX, expressed as: dam-dam section number-dam block number-initial elevation-dam block height;
grouting area numbering: JF-GQXX-GFXX-XXXXEL-XX, expressed as: seam-irrigation area number-irrigation seam number-initial elevation-irrigation area height;
and (3) construction information coding: Target-Object-Attribute-Time-Value-Unit, expressed as: construction object-observation attribute-observation time-observation value-unit;
and (3) encoding construction simulation information: Target-Object-Attribute-Time-Value-Unit, expressed as: construction object-observation attribute-observation time-observation value-unit.
The construction information of the step 1-3) can be divided into a progress class and a parameter class, and the coding mode mentioned in the step 1-3) can be used for coding:
the schedule class:
dam segment number-start time-end time-square quantity-cable machine number
Number of grouting area-start time-end time-area
Parameter classes:
machine number-parameter type-distribution type-parameter mean-parameter variance-unit.
The construction simulation information is similar to the construction information.
In the steps 1-4), dam construction data is converted according to a unified IFC standard format, non-structural data is converted into structural data, the structural data is connected to a BIM support database in an opposite mode to achieve fusion of construction process data and a dam three-dimensional model, animation description is conducted on construction real-time dynamic through an IFC attribute extension mechanism, construction animation is rendered through an Open GL technology, and a more vivid BIM model and real-time animation are achieved.
In steps 1-4) and 2-1), the construction database, the simulation database and the BIM support database are interconnected by adopting an open database interconnection (ODBC) technology and adopting a data interface with unified C # language development data standard, model making, coding specification and interaction standard, so that centralized management of operation data and data sharing are realized.
In the step 2-4), the BIM visualizes the updated and optimized simulation scheme, and simultaneously compares the simulation scheme with the actual construction situation, so as to provide a basis for the analysis and optimization of construction deviation and realize the analysis of bidirectional coupling data of the construction simulation and the BIM.
In step 3-1), the actual progress information and the simulation plan information are arranged on a panel for comparative analysis, a front line method is adopted to track the dam pouring progress, a remaining time method is adopted for determining a front point, and the specific process is as follows: and (4) reversely determining a front point according to the time length of the expected remaining construction period by using the expected remaining construction period calculated by simulation and the end point in the cross-road graph of the original planned construction period. If the point falls on the left side of the checking line, the progress accumulated to the current moment is behind the planned progress; otherwise, the progress is advanced, and if the point falls on the check line, the actual progress is consistent with the plan; if the cutoff time of the expected construction period needs to be further judged, the front point can be moved to a check line, a crosswalk graph is drawn in the forward direction according to the expected remaining construction period time length obtained by simulation, and the time corresponding to the end point is the expected completion time of dam construction. And visually displaying the comparative analysis result in the BIM model, and marking a progress delay part and a part needing to be adjusted and optimized by adopting different colors.
In the step 3-2), the scheme optimization method comprises the steps of preliminarily drawing up a plurality of optimization schemes according to design requirements, simulating the pouring process and progress of different construction schemes by the construction simulation system, analyzing the influence degree of the different construction schemes and key parameters on the construction progress, selecting the optimal scheme, and correlating the adjusted optimal scheme with the model again.
While the present invention has been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are illustrative only and not restrictive, and various modifications which do not depart from the spirit of the present invention and which are intended to be covered by the claims of the present invention may be made by those skilled in the art.
Claims (8)
1. A BIM visualization-based full-life-cycle dynamic simulation analysis method for high arch dam construction is characterized by comprising the following steps:
step one, building a high arch dam and pouring BIM, comprising the following steps:
1-1) establishing a three-dimensional model of the dam according to design data, and dividing the three-dimensional model into different dam sections; dividing dam sections into different dam blocks based on actual construction requirements and simulation planning; dividing the joint grouting area according to the design data;
1-2) numbering the divided dam blocks and grouting areas according to the following numbering rules:
the dam blocks are numbered: DB-BDXX-BKXX-XXXXEL-XX, dam-dam section number-dam block number-initial elevation-dam block height;
grouting area numbering: JF-GQXX-GFXX-XXXXEL-XX, wherein each character in sequence represents: seam-irrigation area number-irrigation seam number-initial elevation-irrigation area height;
1-3) acquiring dam construction information in real time through a real-time monitoring system of the construction process of the high arch dam, wherein the dam construction information comprises construction progress information, construction resource configuration and pouring information, the construction progress information comprises dam block pouring data and grouting progress data, the construction resource configuration comprises cable crane operation process data, codes are established for the information, and the coding rules are as follows: Target-Object-Attribute-Time-Value-Unit, wherein each field of characters sequentially represent: construction object-observation attribute-observation time-observation value and unit;
1-4) determining a data interface of the three-dimensional model of the dam established in the step 1-1) and dam construction information, fusing the dam construction data obtained in the step 1-3) with the three-dimensional model by taking a construction object as connection, and constructing the high arch dam pouring BIM with unified data structures of the three-dimensional model, the simulation information obtained by using a high arch dam construction dynamic simulation system and the dam construction information obtained by using a high arch dam construction process real-time monitoring system;
step two, construction simulation analysis based on BIM data comprises the following steps:
2-1) determining a data interface of the high arch dam construction dynamic simulation system and the high arch dam construction process real-time monitoring system based on the high arch dam pouring BIM established in the step one, wherein the high arch dam pouring BIM acquires dam construction information;
2-2) the dynamic simulation system for high arch dam construction carries out statistical analysis on dam construction information to obtain construction parameter data; respectively calculating the prior probability and the likelihood function of the construction parameter data by adopting a Bayesian updating method, and then calculating the posterior probability to obtain updated simulation construction parameter data, thereby realizing the real-time updating of the construction parameters of the dynamic simulation system for high arch dam construction;
2-3) based on the simulation construction parameter data updated in real time in the step 2-2), performing simulation analysis calculation by using the dynamic simulation system for the high arch dam construction, thereby establishing a high arch dam construction progress scheme, and simultaneously performing optimization analysis on a joint grouting period, a grouting area height, a maximum cantilever height, an orifice part layering scheme, a pouring layer thickness and the number of cable cranes of the scheme to obtain a simulation analysis result, namely the simulation information;
2-4) storing the simulation analysis result obtained in the step 2-3) into a simulation information database, and updating data of the high arch dam pouring BIM according to simulation information in the simulation database;
step three, construction progress control, including:
3-1) comparing construction progress information in the dam construction information acquired in real time in the step 1-3) with construction progress information of an original construction plan, and evaluating the influence of progress deviation on a construction period according to a simulation analysis result in the step 2-3);
and 3-2) carrying out dynamic adjustment and optimization simulation according to the evaluation result of the construction progress deviation in the step 3-1), and generating an adjustment scheme and a progress plan of the construction at the next stage.
2. The BIM visualization technology-based full-life-cycle dynamic simulation analysis method for high arch dam construction according to claim 1, which is characterized in that: in the step 1-3), the established three-dimensional model of the high arch dam, the construction information and the simulation information adopt a unified coding mode, and the coding rule is as follows:
the dam blocks are numbered: DB-BDXX-BKXX-XXXXEL-XXX, expressed as: dam-dam section number-dam block number-initial elevation-dam block height;
grouting area numbering: JF-GQXX-GFXX-XXXXEL-XX, expressed as: seam-irrigation area number-irrigation seam number-initial elevation-irrigation area height;
and (3) construction information coding: Target-Object-Attribute-Time-Value-Unit, expressed as: construction object-observation attribute-observation time-observation value-unit;
and (3) encoding construction simulation information: Target-Object-Attribute-Time-Value-Unit, expressed as: construction object-observation attribute-observation time-observation value-unit.
3. The BIM visualization technology-based full-life-cycle dynamic simulation analysis method for high arch dam construction according to claim 2, characterized in that: the dam construction information in the step 1-3) is divided into a progress class and a parameter class, and coding is carried out by applying the coding rule mentioned in the step 1-3):
the schedule class: dam section number-start time-end time-square quantity-cable machine number;
number of grouting area-start time-end time-area;
parameter classes: machine number-parameter type-distribution type-parameter mean-parameter variance-unit.
4. The BIM visualization technology-based full-life-cycle dynamic simulation analysis method for high arch dam construction according to claim 1, wherein the BIM visualization technology-based full-life-cycle dynamic simulation analysis method comprises the following steps: the specific content of the step 3-1) comprises the following steps:
the dam construction information and the simulation information are arranged on a panel for comparative analysis, the dam pouring progress is tracked by adopting a front line method, the remaining time method is adopted for determining the front point, and the process is as follows
Reversely determining a front point according to the time length of the expected remaining construction period by using the terminal point in the cross-road diagram of the original planned construction period and the expected remaining construction period obtained by the simulation calculation; if the point falls on the left side of the checking line, the progress accumulated to the current moment is behind the planned progress; otherwise, the progress is advanced, and if the point falls on the check line, the actual progress is consistent with the plan;
if the cutoff time of the expected construction period needs to be further judged, moving the front point to an inspection line, drawing a crosswalk diagram in the forward direction according to the expected remaining construction period time length obtained by simulation, wherein the time corresponding to the end point is the expected completion time of dam construction; and visually displaying the comparative analysis result in the BIM, and marking a progress delay part and a part needing to be adjusted and optimized by adopting different colors.
5. The BIM visualization technology-based full-life-cycle dynamic simulation analysis method for high arch dam construction according to claim 1, wherein the BIM visualization technology-based full-life-cycle dynamic simulation analysis method comprises the following steps: the content of the step 3-2) is as follows:
and preliminarily drawing up a plurality of optimization schemes according to design requirements, simulating the pouring process and progress of different construction schemes by the construction simulation system, analyzing the influence degree of construction parameters in different construction schemes and simulation information on the construction progress, selecting an optimal scheme, and fusing the optimal scheme with the three-dimensional model again.
6. The BIM visualization technology-based full-life-cycle dynamic simulation analysis method for high arch dam construction according to claim 1, wherein the BIM visualization technology-based full-life-cycle dynamic simulation analysis method comprises the following steps: the dam construction data are converted according to a unified IFC standard format, non-structural data are converted into structural data, the structural data are connected to a BIM database in an opposite mode to achieve fusion of dam construction information and a dam three-dimensional model, animation description is conducted on construction real-time dynamic states through an IFC attribute extension mechanism, then rendering is conducted through an Open GL technology, and the BIM model and real-time animation which are more vivid are achieved.
7. The BIM visualization technology-based full-life-cycle dynamic simulation analysis method for high arch dam construction according to claim 6, wherein: by means of an open database interconnection (ODBC) technology, a dam construction information database, a simulation information database and a BIM database are interconnected by adopting a data interface with C # language development data standard, model making, coding specification and interaction standard unification, and centralized management of operation data and data sharing are achieved.
8. The BIM visualization technology-based full-life-cycle dynamic simulation analysis method for high arch dam construction according to claim 7, wherein: in the step 3-1), the high arch dam pouring BIM visualizes the updated and optimized simulation data result, and simultaneously compares the simulation data result with the construction condition corresponding to the dam construction information, so as to provide a basis for construction deviation analysis and optimization and realize bidirectional coupling data analysis of construction simulation and BIM.
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