EPC project construction progress management and control method based on intelligent construction technology

Abstract

The invention relates to the field of intelligent construction of engineering projects, and discloses an EPC project construction progress management and control method based on an intelligent construction technology, and the method comprises the steps: multiplying the completion percentage of a task in a construction progress plan by a weight coefficient occupied by the task, and carrying out the step-by-step accumulation and summarization, thereby obtaining a quantifiable project progress completion rate. Meanwhile, the construction progress plan is associated with the BIM model, virtual building simulation, image progress display and construction progress deviation analysis are achieved, the relation between the completed project amount and the BIM model is established through combination of a progress task and a subpackage daily report, and the difficulty that the completed project amount is fed back to the BIM model is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent construction of engineering projects, and in particular to a method for controlling the construction progress of an EPC project based on intelligent construction technology. Background Art

[0002] Smart construction refers to making full use of smart technology and related digital system platforms in the construction process, improving the level of intelligence in the construction process through digital means, reducing dependence on people, and achieving safe, efficient, green, and reliable construction goals. This field covers multiple stages of construction engineering, including design, production, logistics, and construction, forming a multi-link highly integrated digital construction system.

[0003] The existing construction progress simulation based on BIM technology is a method of combining BIM model with construction schedule to predict and manage construction progress by simulating the construction process. By simulating the construction process, potential problems and conflicts can be discovered in time, the construction plan can be optimized, and changes and delays in the construction process can be reduced, thereby improving construction efficiency.

[0004] The main implementation steps include:

[0005] 1. Data preparation: Establish a detailed design model for the construction drawing, prepare a construction schedule, and select appropriate BIM software or BIM platform with 4D simulation capabilities.

[0006] 2. Associate the model with the schedule; import the BIM model and construction schedule into the BIM software or BIM platform, and associate the tasks with the model.

[0007] 3. Simulation settings: set the task start and completion time, simulation animation settings, and other task settings.

[0008] 4. Progress display: Run the construction simulation to visually display the progress.

[0009] 5. Practical application: Check the planned progress and actual progress, analyze progress deviations, take timely adjustment measures, and assist in construction decision-making.

[0010] In the existing technology, the key difficulties in the construction progress management of EPC projects are:

[0011] 1. There are many project participants, the workload of communication and coordination is large, and the collaborative efficiency is low.

[0012] 2. In the traditional progress management method during the project management process, the general contractor has low management efficiency over the subcontractor, and the workload of summarizing and counting the construction progress of the subcontractor is large.

[0013] 3. The traditional BIM construction progress management method cannot automatically associate the task completion status with the work of the subcontracting unit, and manually setting the task completion time is a lot of work. Summary of the invention

[0014] To this end, the present invention provides an EPC project construction progress control method based on intelligent construction technology, which is used to solve the problems of large coordination workload, low collaboration efficiency, and inability to automatically associate task completion status with the work of subcontracting units.

[0015] In order to achieve the above object, the present invention provides the following technical solution: a method for controlling the construction progress of an EPC project based on intelligent construction technology, the method comprising the following steps:

[0016] S1. Edit the schedule, which has several sub-projects, associate the schedule with the BIM model, set the total project volume and budget cost according to the sub-projects, set the general contractor, and publish the schedule;

[0017] S2. The general contractor sets up subcontractors corresponding to the sub-projects and issues sub-tasks to the subcontractors, and the subcontractors accept the sub-tasks and implement them;

[0018] S3. The subcontractor reports the completed sub-task quantities to the general contractor, and the general contractor reviews the completed sub-task quantities;

[0019] S4. Calculate the actual completion rate of the sub-task volume and the planned completion rate of the sub-task volume;

[0020] S5. Summarize and compile the actual completion rate of the sub-task engineering volume and the planned completion rate of the sub-task engineering volume to form a progress curve.

[0021] As a preferred technical solution of the present invention,

[0022] S11. Develop a schedule. The BIM project management platform supports Project format and online editing. Upload the schedule to the BIM project management platform.

[0023] S12. Associating the BIM model, wherein the BIM model is associated with the sub-project;

[0024] S13. Setting the total construction volume and the budget cost in the schedule through the BIM project management platform;

[0025] S14. Setting the general contractor in the schedule through the BIM project management platform;

[0026] S15. Publish the progress plan set by the BIM project management platform data.

[0027] As a preferred technical solution of the present invention,

[0028] S31. The subcontractor uploads the sub-task volume completed on the day to the daily report module of the BIM project management platform;

[0029] S32. The general contractor reviews the sub-task volume completed by the subcontractor on the day through the daily report module;

[0030] S33. The BIM project management platform is provided with a database, and the data of the daily report module is automatically aggregated into the database.

[0031] As a preferred technical solution of the present invention, the amount of sub-task completed by the subcontractor on that day shall not exceed the total value of the total project amount; the time node when the subcontractor first reports the amount of sub-task completed by the subcontractor on that day shall be the actual start time, and the time node when the cumulative reports reach 100% shall be the actual completion time.

[0032] As a preferred technical solution of the present invention,

[0033] S41. The BIM project management platform automatically calculates the weight coefficient according to the data in the database;

[0034] S42. The BIM project management platform automatically calculates the actual completion rate of the sub-task workload based on the data in the database;

[0035] S43. The BIM project management platform automatically calculates the planned completion rate of the sub-task engineering quantity based on the data in the database.

[0036] As a preferred technical solution of the present invention, the sub-tasks are provided with primary node tasks and secondary node tasks, the primary node tasks include a number of secondary node tasks, and the secondary node tasks are provided with a number of execution tasks.

[0037] As a preferred technical solution of the present invention, the weight coefficient refers to the relative importance of the current task in the node at this level and the quantitative value of the proportion, and the sum of the weight coefficients of the tasks under each level of node is 100%;

[0038] The calculation formula of the weight coefficient is:

[0039] and

[0040] where d ijThe calculation formula is:

[0041] d ij =PS-PF(3)

[0042] Where: w ij represents the weight coefficient of the jth secondary task under the i-th primary node; d ij represents the planned duration of the jth second-level task under the i-th first-level node; C ij It represents the budget cost of the jth second-level task under the i-th first-level node; PS represents the planned start time of the current task; PF represents the planned end time of the current task;

[0043] i = 1, 2, 3, ... m; j = 0, 1, 2, 3, ... n; where m represents the number of tasks of the first-level node; n represents the number of second-level node tasks under a first-level node; when j = 0, it represents a first-level node task, and the 0 in the code can be omitted, such as w i ,d i , C i They respectively represent the weight coefficient, duration and budget cost of the i-th first-level node task.

[0044] As a preferred technical solution of the present invention, the actual completion rate of the sub-task engineering workload refers to the actual progress completion percentage of the current task;

[0045] The calculation formula for the actual completion rate of the sub-task engineering volume is:

[0046] and

[0047] Where j = 1, 2, 3, ... n;

[0048] Where: q ij represents the cumulative completed engineering volume of the jth second-level task under the i-th first-level node; Q represents the total engineering volume of the jth second-level task under the i-th first-level node; p ij represents the cumulative completion rate of the jth secondary task under the i-th primary node; p i represents the completion rate of the i-th first-level node task; p represents the completion rate of the overall project progress.

[0049] As a preferred technical solution of the present invention, the planned completion rate of the sub-task engineering quantity refers to the completion percentage of the planned progress of the current task;

[0050] The calculation formula for the planned completion rate of the sub-task engineering quantity is:

[0051]

[0052] Among them, the first-level node task completion rate and the overall project progress completion rate are calculated using the above formulas (5) and (6).

[0053] As a preferred technical solution of the present invention,

[0054] S51. Perform virtual simulation of the construction process through the BIM model, and realize visual progress display through the association of the actual progress and the BIM model;

[0055] S52. Setting an early warning module, wherein the early warning module is associated with the BIM model;

[0056] S53. Generate a progress percentage curve chart.

[0057] Compared with the prior art, the present invention provides an EPC project construction progress control method based on intelligent construction technology, which has the following beneficial effects:

[0058] 1. Establish the connection between the tasks in the construction progress and the responsible persons of the general contractor and subcontractors, and automatically send the tasks to the subcontractors, so that the subcontractors can report the completed project volume every day through the BIM platform, thus improving the efficiency of communication and coordination.

[0059] 2. The overall completion percentage of the project is automatically calculated by multiplying the weight coefficient with the task completion percentage and accumulating the statistics step by step. When the completion percentage of each task reaches 100%, the actual completion time of the task is automatically written in. This improves the efficiency of task summary statistics and automatically records the task completion time, eliminating the need to set the task completion time during BIM progress simulation.

[0060] 3. By associating tasks with BIM models in the construction schedule, the planned progress and actual progress can be visualized, which facilitates the analysis of progress deviations, identifies progress problems, and facilitates progress adjustment and optimization as well as project decision-making.

[0061] 4. Through the BIM platform, automatic warning information will be sent for tasks that are about to expire or have exceeded the deadline, reminding the person in charge of the general contractor and the subcontractor to pay attention to the progress, thereby improving management efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 is a progress management flow chart of the present invention;

[0063] Figure 2 Improve and publish flow charts for the progress plan of the present invention;

[0064] Figure 3 It is a detailed diagram of the progress plan of the present invention;

[0065] Figure 4 It is a task flow chart of the present invention;

[0066] Figure 5 It is a progress task management detail diagram of the present invention;

[0067] Figure 6 It is a progress task management detail diagram of the present invention;

[0068] Figure 7 A detailed diagram of the subcontract reporting and review of the present invention;

[0069] Figure 8 It is a progress simulation diagram of the present invention;

[0070] Fig. 9 It is a progress warning diagram of the present invention;

[0071] Fig.10 It is a progress analysis comparison chart of the present invention. DETAILED DESCRIPTION

[0072] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0073] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0074] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] A method for controlling the construction progress of an EPC project based on intelligent construction technology comprises the following steps:

[0076] S1. Edit the schedule. The schedule has several sub-projects. Associate the schedule with the BIM model. Set the total project volume and budget cost according to the sub-projects. Set the general contractor (the general contractor is implemented by the person in charge of the specific general contractor, and is collectively referred to as the "general contractor") and publish the schedule.

[0077] The total engineering quantity is obtained by combining and merging according to the quantity list, and the total engineering quantity is the basis for data calculation; the budget cost is the budget cost of the sub-project; the associated BIM model provides a foundation for construction progress simulation, visual progress display and progress comparison.

[0078] S2. The general contractor issues sub-tasks based on the total project volume and sets up sub-contractors. The sub-contractors accept the sub-tasks and implement them specifically.

[0079] S3. The subcontractor shall report the completed quantities of sub-tasks to the general contractor, who shall review the completed quantities of sub-tasks.

[0080] S4. Calculate the actual completion rate of the sub-task workload and the planned completion rate of the sub-task workload.

[0081] S5. Layout the values ​​of the actual completion rate of the sub-task engineering volume and the values ​​of the planned completion rate of the sub-task engineering volume and draw them into a progress curve.

[0082] Furthermore, the specific implementation steps of S1 include:

[0083] S11. Set up a BIM project management platform, which supports Project format and online editing, and upload the schedule to the BIM project management platform;

[0084] The BIM project management platform supports online generation of traditional progress management methods such as Gantt charts and critical paths. The BIM project management platform supports built-in automatic calculation of weight coefficients based on construction period or actual usage costs. The platform supports quick setting of corresponding data.

[0085] S12. Associate BIM model, and associate BIM model with sub-project;

[0086] S13. Set the total project quantity and budget cost in the schedule through the BIM project management platform;

[0087] S14. Set the general contractor in the schedule through the BIM project management platform;

[0088] S15. Publish the progress plan set by the BIM project management platform data.

[0089] Furthermore, the specific implementation steps of S3 include:

[0090] S31. The subcontractor shall upload the quantity of sub-tasks completed on the day to the daily report system of the BIM project management platform;

[0091] S32. The general contractor reviews the sub-task quantities completed by the subcontractor on the day through the daily report system;

[0092] S33. The BIM project management platform is equipped with a database, and the data from the daily report system is automatically aggregated into the database.

[0093] Furthermore, the specific implementation steps of S4 include:

[0094] S41. The BIM project management platform automatically calculates the weight coefficient based on the data in the database;

[0095] S42. The BIM project management platform automatically calculates the actual completion rate of the sub-task engineering quantity based on the data in the database;

[0096] S43. The BIM project management platform automatically calculates the planned completion rate of the sub-task quantity based on the data in the database.

[0097] Furthermore, the specific implementation steps of S5 include:

[0098] S51. Use BIM models to simulate the construction process and visualize the progress through virtual simulation;

[0099] S52. Setting an early warning module, which is associated with a BIM model;

[0100] S53. Generate a progress percentage curve chart.

[0101] The method of the embodiment of the present invention relies on the BIM model to realize digital management of construction progress and improve the level of refined project management. After the progress plan is released, the person in charge of the general contractor receives the progress tasks under his / her management, and can continue to set the subcontractors of the tasks within the scope of authority and issue the progress tasks to the subcontractors.

[0102] The subcontractor reports the project volume every day, selects the corresponding task, fills in the project volume completed on that day, and submits it to the person in charge of the general contractor for review.

[0103] The person in charge of the general contractor shall review the engineering quantity data reported by the subcontractor. After the review is passed, the daily data will be automatically summarized into the database, and the progress calculation and analysis will be automatically performed; the engineering quantity of the sub-task completed by the subcontractor on the same day shall not exceed the total value of the total engineering quantity; the time node when the subcontractor first reports the engineering quantity of the sub-task completed by the subcontractor on the same day shall be the actual start time, and the time node when the cumulative report reaches 100% shall be the actual completion time.

[0104] To explain the calculation method, the following takes the preparation of the project schedule to the second-level node task as an example to introduce the calculation process in detail.

[0105] The sub-tasks are set up with primary node tasks and secondary node tasks. The primary node tasks include several secondary node tasks, and the secondary node tasks are set up with several execution tasks.

[0106] The weight coefficient refers to the relative importance of the current task in the node at this level and the quantitative value of its proportion, expressed as w ij Indicates that the sum of the weight coefficients of tasks under each level of node is 100%.

[0107] Weight coefficient;

[0108] Considering that the importance of a task is closely related to the duration and cost, this method proposes a method for calculating the weight coefficient that can be estimated by the duration or cost. In the project, the following formula (1) or formula (2) can be used for calculation according to the actual situation.

[0109] (1)

[0110] (2)

[0111] (3)d ij =PS-PF

[0112] Where:

[0113] w ij : represents the weight coefficient of the jth secondary task under the i-th primary node;

[0114] d ij : represents the planned duration of the jth second-level task under the i-th first-level node;

[0115] C ij : represents the budget cost of the jth secondary task under the i-th primary node;

[0116] PS: indicates the current task plan start time;

[0117] PF: Indicates the planned end time of the current task.

[0118] i = 1, 2, 3, ... m; j = 0, 1, 2, 3, ... n. Where m: represents the number of tasks of the first-level node; n: represents the number of tasks of the second-level node under a first-level node.

[0119] When j=0, it represents a first-level node task. In this case, the 0 in the code can be omitted, such as w i ,d i , C iThey respectively represent the weight coefficient, planned duration and budget cost of the i-th first-level node task.

[0120] Actual completion rate of tasks;

[0121] The actual completion rate of a task refers to the actual completion percentage of the current task. The completion rate of the lowest-level subtask under each node task is calculated based on the workload reported by the subcontractor.

[0122] Taking the project schedule preparation to the second-level node task as an example, the task completion rate is calculated using the following formulas (4), (5), and (6).

[0123] When j = 1, 2, 3, ... n,

[0124] (4)

[0125] (5)

[0126] (6)

[0127] Where:

[0128] q ij : represents the cumulative completed engineering volume of the jth second-level task under the i-th first-level node;

[0129] Q: represents the total engineering workload of the jth secondary task under the i-th primary node;

[0130] p ij : represents the cumulative completion rate of the jth secondary task under the i-th primary node;

[0131] p i : represents the completion rate of the i-th first-level node task;

[0132] p: represents the completion rate of the overall project progress.

[0133] Mission plan completion rate;

[0134] The task completion rate refers to the percentage of the planned progress of the current task completed. Using the estimation method, the task completion rate is equal to the ratio of the duration from the planned start time of the task to the planned duration. The following formula is used for calculation.

[0135] When j = 1, 2, 3, ... n,

[0136] (7)

[0137] Among them, the first-level node task completion rate and the overall project progress completion rate are calculated using the above formulas (5) and (6).

[0138] Progress simulation and early warning;

[0139] By associating the progress plan with the BIM model through sub-projects, the simulation of the virtual construction process can be realized, and the visual progress can be displayed in combination with the actual completed work reported by the subcontractors.

[0140] At the same time, the planned progress and the actual progress are compared, and the delayed parts are highlighted. For delayed tasks, the platform automatically sends warning messages to remind the general contractor and subcontractor.

[0141] Comparison and display of quantitative indicators;

[0142] The BIM project management platform supports the generation of progress percentage curves, compares the planned progress with the actual progress, displays the current overall progress status of the project in a quantitative manner, analyzes progress deviations, and provides a strong basis for project decision makers.

[0143] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling the construction progress of an EPC project based on intelligent construction technology, characterized in that: The steps of the method include: S1. Edit the schedule, which has several sub-projects, associate the schedule with the BIM model, set the total project volume and budget cost according to the sub-projects, set the general contractor, and publish the schedule; S2. The general contractor sets up subcontractors corresponding to the sub-projects, issues sub-tasks to the subcontractors, and the subcontractors accept the sub-tasks and implement them; S3. The subcontractor reports the completed sub-task quantities to the general contractor, and the general contractor reviews the completed sub-task quantities; S4. Calculate the actual completion rate of the sub-task engineering quantity and the planned completion rate of the sub-task engineering quantity; the BIM project management platform calculates the weight coefficient according to the data in the database, the BIM project management platform calculates the actual completion rate of the sub-task engineering quantity according to the data in the database, and the BIM project management platform automatically calculates the planned completion rate of the sub-task engineering quantity according to the data in the database; S5. The actual completion rate of the sub-tasks and the planned completion rate of the sub-tasks are summarized and statistically plotted into a progress curve; wherein, The sub-tasks are provided with a primary node task and a secondary node task, the primary node task includes a plurality of the secondary node tasks, and the secondary node task is provided with a plurality of execution tasks; The weight coefficient refers to the relative importance of the current task in the node at this level and the quantitative value of the proportion of the task. The sum of the weight coefficients of the tasks at each level of the node is 100%; The calculation formula of the weight coefficient is: and where d ij The calculation formula is: d ij =PS-PF(3) Where: w ij represents the weight coefficient of the jth secondary task under the i-th primary node; d ij represents the planned duration of the jth second-level task under the i-th first-level node; C ij It represents the budget cost of the jth second-level task under the i-th first-level node; PS represents the planned start time of the current task; PF represents the planned end time of the current task; i = 1, 2, 3, ... m; j = 0, 1, 2, 3, ... n; where m represents the number of tasks of the first-level node; n represents the number of second-level node tasks under a first-level node; when j = 0, it represents a first-level node task, and the 0 in the code can be omitted, such as w i ,d i , C i They represent the weight coefficient, duration and budget cost of the i-th first-level node task respectively; The actual completion rate of the sub-task engineering workload refers to the actual completion percentage of the current task; The calculation formula for the planned completion rate of the sub-task engineering quantity is: and Where j = 1, 2, 3, ... n; Where: q ij represents the cumulative completed engineering volume of the jth second-level task under the i-th first-level node; Q represents the total engineering volume of the jth second-level task under the i-th first-level node; p ij represents the cumulative completion rate of the jth secondary task under the i-th primary node; p i represents the completion rate of the i-th first-level node task; p represents the completion rate of the overall project progress; The planned completion rate of the sub-task engineering quantity refers to the percentage of the planned progress of the current task completed; The calculation formula for the actual completion rate of the sub-task engineering volume is: Among them, the first-level node task completion rate and the overall project progress completion rate are calculated using the above formulas (5) and (6).

2. According to claim 1, a method for controlling the construction progress of an EPC project based on intelligent construction technology is characterized in that: The steps in S1 include: S11. Develop a schedule. The BIM project management platform supports Project format and online editing. Upload the schedule to the BIM project management platform. S12. Associating the BIM model, wherein the BIM model is associated with the sub-project; S13. Setting the total construction volume and the budget cost in the schedule through the BIM project management platform; S14. Setting the general contractor in the schedule through the BIM project management platform; S15. Publish the progress plan set by the BIM project management platform data.

3. The EPC project construction progress control method based on intelligent construction technology according to claim 1 is characterized in that: The steps in S3 include: S31. The subcontractor uploads the sub-task volume completed on the day to the daily report module of the BIM project management platform; S32. The general contractor reviews the sub-task volume completed by the subcontractor on the day through the daily report module; S33. The BIM project management platform is provided with a database, and the data of the daily report module is automatically aggregated into the database.

4. The EPC project construction progress control method based on intelligent construction technology according to claim 3 is characterized by: The quantity of sub-tasks completed by the subcontractor on that day shall not exceed the total value of the total project quantity; the time node when the subcontractor first reports the quantity of sub-tasks completed by the subcontractor on that day shall be the actual start time, and the time node when the cumulative reports reach 100% shall be the actual completion time.

5. The EPC project construction progress control method based on intelligent construction technology according to claim 1 is characterized in that: The step of S5 comprises: S51. Perform virtual simulation of the construction process through the BIM model, and realize visual progress display through the association of actual progress and BIM model; S52. Setting an early warning module, wherein the early warning module is associated with the BIM model; S53. Generate a progress percentage curve chart.

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