CN111079339A - Time-product element-based warehouse construction space-time conflict quantitative calculation method - Google Patents
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Abstract
The invention discloses a time-product element-based warehouse surface construction space-time conflict quantitative calculation method, which comprises the steps of collecting warehouse surface information in a sorting mode and determining warehouse surface construction conditions; establishing an equal proportion warehouse surface construction machinery infinitesimal model; combining the mechanical infinitesimal model with the mechanical motion trail and the spatial state information to establish a time integral model of the construction machinery; determining time sharing, running track and boundary information of the mechanical time integral motion process; determining the adjacent step difference and the micro-step track of the machine; simulating to obtain a mechanical infinitesimal time-sharing running track by using a linear interpolation algorithm and a computer program language; and obtaining the micro-component time coherence, coherence number and coherence degree, thereby quantifying the time-space conflict. The invention solves the problem that the space-time conflict during the construction of the warehouse surface can not be quantified, quantifies the fuzzy concept of the conflict, thereby providing a specific reference value which can be compared with the safety and the efficiency of the construction of the warehouse surface, and has important guiding significance for improving the mechanical configuration efficiency and the construction efficiency of the warehouse surface and reducing the safety risk and the efficiency loss.
Description
Technical Field
The invention belongs to the field of hydropower engineering construction, and particularly relates to a time-product element-based space-time conflict quantitative calculation method for warehouse surface construction.
Background
The arch dam is located in a narrow section with steep terrain and deep river valley, construction space resources are limited, construction activities are many and are crossed, a construction method is complex, construction process requirements are strict, and machinery and auxiliary equipment are complex. The construction working face of the arch dam concrete arch dam is narrow, the mechanical arrangement is difficult, the safety risk or the efficiency loss is easy to occur, and the rapid construction of the dam is influenced to a certain extent. Because the continuous high-strength rapid construction of the dam must be established on the basis of ensuring the construction quality and the construction safety, the assessment of the space-time conflict of the warehouse construction has very important significance for solving the problems of safety risk and efficiency loss.
Many methods for evaluating the time-space conflict of the construction machinery mainly focus on the aspects of safety risk evaluation and prediction caused by external environmental factors, identification of factors influencing efficiency loss, quantitative calculation of efficiency loss and the like. However, at present, concrete classification of construction space and quantitative research on space-time collision risk in the arch dam construction process are still lacked, and meanwhile, research such as correlation quantitative analysis of construction space classification and construction safety risk and efficiency loss and calculation and efficiency optimization of efficiency loss caused by space-time collision between construction entities are rarely carried out.
Due to the influences of factors such as complexity of the construction process flow of the warehouse surface of the arch dam, limitation of construction space resources, operation crossability of construction equipment and the like, the problems of safety risk and efficiency loss caused by space-time conflict during warehouse surface construction are more complicated. However, the quantification of the space-time conflict in the warehouse surface construction can quantify the fuzzy concept of the conflict, and can provide a specific reference value which can be compared for the safety and the efficiency of the warehouse surface construction; meanwhile, the conflict situation of each element in different space-time states in the construction process can be intuitively and conveniently analyzed, important guiding significance is provided for improving the mechanical configuration efficiency and the construction efficiency of the warehouse surface and reducing the safety risk and the efficiency loss caused by the mechanical conflict and mutual interference of the construction site, and the quantification of the space-time conflict of the warehouse surface construction is the key for solving the problems of the safety risk and the efficiency loss.
Disclosure of Invention
The invention mainly focuses on safety risk assessment and prediction caused by external environmental factors, identification of factors influencing efficiency loss and quantitative calculation of efficiency loss, and lacks quantification of space-time conflict risk in warehouse construction.
The invention aims to solve the problems and provides a space-time conflict quantification calculation method for warehouse surface construction, which quantifies space-time conflicts in warehouse surface construction, so that the mechanical configuration efficiency and the construction efficiency of the warehouse surface are improved, and the safety risk and the efficiency loss caused by mechanical conflicts and mutual interference in a construction site are reduced.
The technical scheme of the invention is a time-integral element-based method for quantitatively calculating the space-time conflict in the construction of the warehouse surface, which comprises the following steps,
step 1: collecting the information of the warehouse surface and determining the construction conditions of the warehouse surface;
step 2: establishing a micro-element model of the equal-proportion warehouse surface construction machinery according to the warehouse surface construction machinery information;
and step 3: combining the mechanical infinitesimal model with the mechanical motion trail and the spatial state information to establish a time integral model of the construction machinery;
and 4, step 4: determining time and time sharing, running tracks and boundary information of a mechanical time integral motion process by combining the construction conditions of the warehouse surface and the information of the integral model;
and 5: determining the time division point, the time division track and the time division boundary of the mechanical construction process, and determining the adjacent step difference and the micro step track of the machine, wherein the adjacent step difference is the transition time difference of two adjacent states, and the micro step track is the running track of a infinitesimal in each single state;
step 6: simulating to obtain a mechanical infinitesimal time-sharing running track by using a linear interpolation algorithm and a computer program language;
and 7: according to the space-time state running track of the construction machinery, the coherence number and the coherence degree in the micro-component are obtained, so that the space-time conflict is quantized.
Further, in step 1, the determining of the construction conditions of the warehouse surface includes: collecting information, and sorting out warehouse surface information and mechanical arrangement information which need to be calculated in the same construction time period, wherein the warehouse surface information comprises the outline, the design and the subarea of a construction warehouse surface, and the mechanical arrangement information comprises a mechanical running track; and simplifying the construction boundary of the warehouse surface into a regular body according to the collected information.
Further, in step 2, the establishing of the micro-element model of the equal-proportion warehouse surface construction machine includes: the model, the running speed, the appearance pattern and the volume size information of the construction machinery for the warehouse surface construction are collected, the complex mechanical appearance is simplified in a regularization mode, and the simplified appearance is divided into cubes in unit volume by using inventory solid modeling, ANSYS grid division and AutoCAD software.
Further, in step 3, the establishing of the time integral model of the construction machine specifically includes:
1) determining a time starting point and a time end point, a space starting point and a space end point of the movement of the construction machine according to the running track of the construction machine, thereby determining a time step length and a space step length;
2) and combining the time step length and the space step length of the construction machine infinitesimal three-dimensional model to establish a five-dimensional model, wherein the five-dimensional model is the construction machine time integral model.
Further, in step 4, the determining time, trajectory and boundary information of the mechanical time integral motion process specifically includes: based on the construction conditions of the warehouse and the time product model information of each machine, time is divided into different stages according to the construction process flow and the time product model state information of the construction machine, the time of the motion process of the machine is obtained, and the running track and the boundary information of the construction machine are obtained by simulation through AutoCAD software.
Further, in step 5, the determining the time division point, the time division trajectory and the time division boundary of the mechanical construction process and the determining the mechanical adjacent step difference and the micro step trajectory specifically include: based on time-sharing, running track and boundary information of the time integral model of the construction machine in the whole construction process, computer program language simulation calculation is adopted to clarify time-sharing points, time-sharing tracks and time-sharing boundaries, and further determine adjacent step differences and infinitesimal tracks of the machine.
Further, in step 6, the mechanical infinitesimal time-sharing operation trajectory is calculated by using a linear interpolation method and an SQL programming language based on the mechanical adjacent step difference and the infinitesimal trajectory information, and the calculation result is drawn by using AutoCAD software to simulate the obtained time-space state infinitesimal trajectory of the construction machine.
Further, in step 7, the infinitesimal time coherence, the coherence number and the coherence degree are obtained by using an interpolation algorithm and an SQL program language based on the space-time state operation trajectory of the construction machine, and describe the overlapping amount of the infinitesimal bodies of different machines in the same space-time, thereby realizing the quantification of the space-time collision of the construction machine.
Further, the cube per unit volume is a 1dm × 1dm × 1dm cube.
Further, the warehouse surface construction machinery comprises a warehouse leveling machine and a vibrating machine.
Compared with the prior art, the invention has the beneficial effects that:
1) the warehouse construction conflict quantification of the method is to quantify the overlapping amount generated when parallel construction activities occupy the same space at the same time, intuitively and conveniently analyze the conflict situation of each element in different time-space states in the construction process, and has important guiding significance for improving the warehouse mechanical configuration efficiency and the construction efficiency and reducing the safety risk and the efficiency loss caused by the mechanical conflict and mutual interference of a construction site;
2) the method solves the problem that the space-time conflict during the construction of the warehouse surface can not be quantified, and quantifies the fuzzy concept of the conflict, thereby providing a comparable specific reference value for the safety and the efficiency of the construction of the warehouse surface;
3) the time integral five-dimensional model contains elements required to be considered for space-time conflict quantification in one model, and the problem that the construction machinery micro three-dimensional model cannot be analyzed is converted into a five-dimensional model for analysis, so that an analysis result which is complete and considers factors thoroughly is obtained conveniently;
4) the machine and the time space are divided into micro elements, so that the operation burden of a computer is reduced, and the operation speed of an analysis system is accelerated.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a flow chart of a time-product-based method for quantitatively calculating spatio-temporal conflicts in the construction of a warehouse surface.
Fig. 2 is a modeling schematic diagram of a space-time conflict quantitative calculation method for the warehouse surface construction according to the embodiment.
FIG. 3 is a hogging machine infinitesimal model.
FIG. 4 is a vibrator model.
FIG. 5 is a warehouse construction boundary model.
Detailed Description
As shown in fig. 1-5, the method for quantitatively calculating the time-space conflict of the warehouse surface construction based on the time integral element, which takes a leveling machine and a vibrating machine as examples for the warehouse surface construction machinery, comprises the following steps,
step 1: collecting the information of the warehouse surface and determining the construction conditions of the warehouse surface;
step 1.1: collecting and arranging information such as the contour, design and partition of the construction bin surface and arrangement information such as the running tracks of the bin leveling machine and the vibrating machine in the same time period;
step 1.2: simplifying the construction boundary of the warehouse surface, and simplifying the complicated and irregular construction boundary of the warehouse surface into a regular body which is convenient for calculation, as shown in fig. 5;
step 2: establishing a micro-element model of the equal-proportion warehouse surface construction machinery according to the warehouse surface construction machinery information, as shown in figures 3 and 4;
step 2.1: collecting basic information parameters such as the running speed, the appearance model, the size and the like of the leveling machine and the vibrating machine in the space-time;
step 2.2: the complex shapes of the bin leveling machine and the vibrating machine are simplified into a regular body convenient for calculation;
step 2.3: dividing the simplified appearance into a cube of 1dm multiplied by 1dm by using software such as Inventors entity modeling, ANSYS rule network, SQL program language, AutoCAD and the like;
and step 3: combining the mechanical infinitesimal model with the mechanical motion trail and the spatial state information to establish a time integral model of the construction machinery;
step 3.1: determining a time starting point and a time end point and a space starting point and a space end point of the leveling machine and the vibrating machine according to the running tracks of the leveling machine and the vibrating machine, thereby determining a time step length and a space step length;
step 3.2: combining the micro-element models of the leveling machine and the vibrating machine established in the step 2 with the time step length and the space step length to establish a time integral five-dimensional model;
and 4, step 4: determining time and time sharing, running tracks and boundary information of a mechanical time integral motion process by combining the construction conditions of the warehouse surface and the information of the integral model;
step 4.1: dividing time into different stages according to the construction process flow and the construction machinery time product model state information based on the bin surface construction boundary obtained in the step 1 and the flat bin machine and the time product model obtained in the step 2, and obtaining the time of the mechanical time product motion process;
step 4.2: simulating the running tracks and boundary information of the leveling machine and the vibrating machine by using AutoCAD software;
and 5: determining the time division point, the time division track and the time division boundary of the mechanical construction process, and determining the adjacent step difference and the micro step track of the machine, wherein the adjacent step difference is the transition time difference of two adjacent states, and the micro step track is the running track of a infinitesimal in each single state;
step 5.1: based on the time-sharing, running track and boundary information of the time-sharing integral model of the leveling machine and the vibrating machine obtained in the step 4 in the whole construction process;
step 5.2: the SQL program language is used for calculating to determine time-sharing points, time-sharing tracks and time-sharing boundaries of the bin leveling machine and the vibrating machine;
step 5.3: determining the adjacent step difference and infinitesimal track of the leveling machine and the vibrating machine;
step 6: simulating to obtain a mechanical infinitesimal time-sharing running track by using a linear interpolation algorithm and a computer program language;
step 6.1: calculating the time-space state infinitesimal track of the vibrating machine by using a linear interpolation method, an SQL (structured query language) program language and the like on the basis of the information such as the adjacent step difference and the infinitesimal track of the leveling machine and the vibrating machine;
step 6.2: drawing a calculation result by combining with AutoCAD, and simulating the obtained space-time state infinitesimal track of the leveling machine and the vibrating machine;
and 7: obtaining the coherence, the coherence number and the coherence degree in the micro-component according to the space-time state running track of the construction machinery, thereby quantifying the space-time conflict;
step 7.1: based on the time-space state running tracks of the bin leveling machine and the vibrating machine, obtaining infinitesimal component time coherence, coherence number and coherence degree of the bin leveling machine and the vibrating machine by using an interpolation algorithm and an SQL (structured query language) program language;
step 7.2: and describing the overlapping amount of the micro elements of the leveling machine and the vibrating machine in the same time and space by using the micro element time coherence, the coherence number and the coherence degree, thereby realizing the quantification of the conflict of the leveling machine and the vibrating machine in the time and space state.
The time product element model is a link connecting a mechanical motion track and a mechanical infinitesimal model with a space-time state, and elements required to be considered for quantifying space-time conflicts are contained in one model. Meanwhile, the machine and the air are divided into micro elements, so that the operation burden of a computer is reduced, the operation speed of an analysis system is increased, and the method is a key for effectively and quickly quantifying the air conflict during the warehouse floor.
In the embodiment, the overlapping amount generated when the construction activities of the leveling machine and the vibrating machine occupy the same space at the same time is quantized, and the method has important guiding significance for improving the mechanical configuration efficiency and the construction efficiency of the bin surface and reducing the safety risk and the efficiency loss caused by mechanical conflict and mutual interference on a construction site.
Claims (10)
1. The time-product element-based space-time conflict quantitative calculation method for the warehouse surface construction is characterized by comprising the following steps of,
step 1: collecting the information of the warehouse surface and determining the construction conditions of the warehouse surface;
step 2: establishing a micro-element model of the equal-proportion warehouse surface construction machinery according to the warehouse surface construction machinery information;
and step 3: combining the mechanical infinitesimal model with the mechanical motion trail and the spatial state information to establish a time integral model of the construction machinery;
and 4, step 4: determining time and time sharing, running tracks and boundary information of a mechanical time integral motion process by combining the construction conditions of the warehouse surface and the information of the integral model;
and 5: determining the time division point, the time division track and the time division boundary of the mechanical construction process, and determining the adjacent step difference and the micro step track of the machine, wherein the adjacent step difference is the transition time difference of two adjacent states, and the micro step track is the running track of a infinitesimal in each single state;
step 6: simulating to obtain a mechanical infinitesimal time-sharing running track by using a linear interpolation algorithm and a computer program language;
and 7: according to the space-time state running track of the construction machinery, the coherence number and the coherence degree in the micro-component are obtained, so that the space-time conflict is quantized.
2. The time-integral-element-based space-time conflict quantification and calculation method for warehouse surface construction according to claim 1, wherein in the step 1, the determining of the warehouse surface construction condition comprises: collecting information, and sorting out warehouse surface information and mechanical arrangement information which need to be calculated in the same construction time period, wherein the warehouse surface information comprises the outline, the design and the subarea of a construction warehouse surface, and the mechanical arrangement information comprises a mechanical running track; and simplifying the construction boundary of the warehouse surface into a regular body according to the collected information.
3. The time-integral-element-based cabin surface construction space-time conflict quantification calculation method according to claim 1, wherein in the step 2, the establishing of the equal-proportion cabin surface construction machinery infinitesimal model comprises: the model, the running speed, the appearance pattern and the volume size information of the construction machinery for the warehouse surface construction are collected, the complex mechanical appearance is simplified in a regularization mode, and the simplified appearance is divided into cubes in unit volume by using inventory solid modeling, ANSYS grid division and AutoCAD software.
4. The time-integral-element-based space-time conflict quantification calculation method for warehouse surface construction according to claim 1, wherein in the step 3, the establishing of the time-integral-element model of the construction machinery specifically comprises:
1) determining a time starting point and a time end point, a space starting point and a space end point of the movement of the construction machine according to the running track of the construction machine, thereby determining a time step length and a space step length;
2) and combining the time step length and the space step length of the construction machine infinitesimal three-dimensional model to establish a five-dimensional model, wherein the five-dimensional model is the construction machine time integral model.
5. The time-integral-element-based space-time conflict quantitative calculation method for warehouse construction according to claim 1, wherein in the step 4, the determining of the time-sharing, the operation track and the boundary information of the mechanical time-integral element motion process specifically comprises: based on the construction conditions of the warehouse and the time product model information of each machine, time is divided into different stages according to the construction process flow and the time product model state information of the construction machine, the time of the motion process of the machine is obtained, and the running track and the boundary information of the construction machine are obtained by simulation through AutoCAD software.
6. The time-integral-element-based space-time conflict quantitative calculation method for warehouse face construction according to claim 1, wherein in step 5, the time-division point, the time-division trajectory and the time-division boundary of the mechanical construction process are determined, and the mechanical adjacent step difference and the micro-step trajectory are determined, which specifically comprises: based on time-sharing, running track and boundary information of the time integral model of the construction machine in the whole construction process, computer program language simulation calculation is adopted to clarify time-sharing points, time-sharing tracks and time-sharing boundaries, and further determine adjacent step differences and infinitesimal tracks of the machine.
7. The time-product element-based space-time conflict quantitative calculation method for warehouse construction according to claim 1, wherein in step 6, the mechanical infinitesimal time-sharing operation trajectory is calculated by using a linear interpolation method and an SQL (structured query language) program language based on mechanical adjacent step difference and infinitesimal trajectory information, and the calculation result is drawn by using AutoCAD software to simulate the obtained space-time state infinitesimal trajectory of the construction machine.
8. The time-product element-based space-time collision quantitative calculation method for warehouse construction according to claim 1, wherein in step 7, the micro-component time-phase coherence, coherence number and coherence degree are obtained by using an interpolation algorithm and an SQL program language based on the space-time state operation trajectory of the construction machinery, and describe the overlapping amount of micro-elements of different machines in the same space-time, so as to realize the quantification of the space-time collision of the construction machinery.
9. The time-bin-based construction space-time collision quantification calculation method for the warehouse floor according to claim 3, wherein the cube of unit volume is a 1dm x 1dm cube.
10. The time-integral-element-based warehouse construction space-time conflict quantification and calculation method according to any one of claims 1 to 9, wherein the warehouse construction machinery comprises a leveling machine and a vibrating machine.
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| CN117408509A (en) * | 2023-10-09 | 2024-01-16 | 湖北工业大学 | Space-time conflict quantification algorithm for arch dam bin face construction machinery |
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| CN111915588B (en) * | 2020-07-31 | 2023-10-27 | 三峡大学 | Safe distance calculation method for bin surface construction machinery considering safe and efficient space |
| CN117408033A (en) * | 2023-10-09 | 2024-01-16 | 湖北工业大学 | Virtual analysis method for space-time conflict of construction machinery in arch dam bin face pouring process |
| CN117408509A (en) * | 2023-10-09 | 2024-01-16 | 湖北工业大学 | Space-time conflict quantification algorithm for arch dam bin face construction machinery |
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