KR20200120855A - Method and Apparatus for Safety Control by Schedule in PMIS in Construction Project - Google Patents

Abstract

The present invention relates to a method for analyzing a dangerous task by using contents of a process schedule created online by partners in a project management information system (PMIS) to prevent safety accidents at construction sites. The method comprises the steps of: establishing safety standards between tasks according to a task classification system and converting the safety standards into a database by safety experts; creating a daily or weekly schedule on the PMIS by a partner; and analyzing a risk by comparing the safety standards after grasping task information of a starting point, a completion point, a pre-task, and a subsequent task of the task by a control unit.

Description

Method and Apparatus for Safety Control by Schedule in PMIS in Construction Project}

The present invention is to prevent safety accidents that occur during construction at construction and industrial construction sites, and more particularly, when a partner of a civil engineering, construction, electrical facility, and environmental plant prepares a daily or weekly schedule within the PMIS of the construction company, the control unit It is about preventing accidents by analyzing unsafe work and analyzing unsafe work through comparison with safety standards.

Many accidents are issued every year in construction and industrial sites, and safety management activities to reduce them are increasing, but accidents are not decreasing due to the aging of construction workers, rising labor costs, and the increase of large-scale construction.

It is possible to know when and where what kind of construction will be carried out through the process plan. The process plan can be known through the process schedule.

There are a weekly schedule, a monthly schedule, and a master (total period) schedule. Among them, the most detailed is the weekly schedule, and it is written in the form of a bar chart such as Excel PowerPoint for major construction such as frame construction, but dozens of minor construction types are not prepared because it takes time and effort.

When the schedule is drawn up, the person in charge reviews the construction plan and safety-related matters for the construction they are in charge of. These schedules are written only for major tasks, and there are many tasks that do not appear in the document, and it is difficult to identify interferences because they are separately written for each type of construction such as construction and electrical equipment, and risk assessment varies depending on the person in charge's personal experience and ability. It is a situation in which activities to evaluate safety by comprehensively analyzing and judging are insufficient.

Therefore, it is necessary to systematically prepare a schedule for all work in the field and then comprehensively analyze the safety risk to remove the safety risk.

In order to solve the above problems, in the present invention, all partners participating in the construction are prepared using a PC or smartphone app so that the online schedule can be quickly and easily created. The schedule is prepared in the construction company's construction information system (PMIS, Project Management Information System).

Specific work on the online schedule is equipped with work classification system, work part, work name, and code system, and the work place and contents of work can be quickly and accurately entered through text, icons, etc. on drawings, 3D, and BIM.

In PMIS, a database of safety standards for each task is established. The safety standards include work order, specifications, structure, hypothesis, accident cases, and countermeasures, and define work conditions, work conditions, and order of work.

The control unit of PMIS analyzes the risk of work by comparing and analyzing the safety standards of the online process schedule and the safety standard database. According to the analysis result, the control unit repeats the process of revising plans, supplementing facilities, stopping work, and establishing countermeasures until a safe state is reached.

In order to solve the above technical problem, the present invention

After having a safety standard database and online process schedule creation function in PMIS, the control unit analyzes the risk of work.

Experts prepare safety standards through various regulations, laws and regulations, work order, work conditions, spatial analysis, structural standards, and accident cases. The safety standards are composed of a systematic system including the work classification system, work classification system, work site system, standard work name, and code system.

The online schedule is created by downloading the online schedule app after accessing PMIS so that all partners can create a schedule for their work. The work place of a specific partner is divided into tools and zones in advance according to the construction scope, and the work name selects a standard work name for the process, and a schedule can be created using text, icons, etc. on drawings, 3D, and BIM. To be.

The control unit of PMIS composes the entire schedule in the field by integrating the online schedule of all suppliers. Then, it is compared with the safety standards in the safety standards database. After analyzing the work that exceeds the safety standard, it creates effects and countermeasures. When the online schedule is modified, the analysis process is repeated again to block dangerous work.

According to the present invention, the following effects can be expected.

Suppliers at the construction site can accurately and easily input and modify the schedule of their work using a smartphone on the PMIS.

PMIS extracts dangerous tasks by receiving online process tables of suppliers in real time and comparing them with the safety standard database.

Accordingly, it is possible to comprehensively grasp and organize all work in the field. Dangerous work can be analyzed in real time through comparison with systematic safety standards.

As the construction progresses, the amount and quality of information in the database are greatly increased in safety standards, and as a result, safety accidents in the site are gradually decreasing.

1 is a functional block diagram of a safety analysis server and terminal configuration of a safety management device using an on-line process table inside a PMIS according to the present invention.
Figure 2 is a configuration diagram of a safety analysis device using the PMIS online process table according to the present invention.
3 is an additional functional configuration diagram of the PMIS safety standard database according to the present invention.
4 is a flowchart of a safety management work process for safety analysis using a PMIS online process table according to the present invention.

Hereinafter, a safety management device and method using an on-line process table inside a PMIS according to the present invention will be described in detail.

1 is a block diagram showing the configuration of a safety analysis server 20 and a terminal 10 for generating and providing safety information using an on-line process table inside a PMIS according to an embodiment of the present invention.

Referring to FIG. 1, the safety analysis server 20 according to the present embodiment receives a safety standard and an online process schedule, determines a work risk, and provides a function to the terminal 10. The terminal 10 is in charge of a function of inputting and inquiring an online process schedule or a dangerous task.

2 is a diagram showing the configuration of a safety reference device using an online process table of PMIS according to an embodiment of the present invention.

Referring to FIG. 2, the configuration of the safety analysis server 20 according to the present embodiment includes a control unit 21, a safety standard database 22, an online process schedule database 23, and a safety analysis database 24.

The control unit 21 stores safety-related standards of the safety analysis server 20 in the safety standard database 22, and stores the online process schedule in the online process schedule database 23. Further, the work content is read from the online process schedule database 23, the risk of work is analyzed through comparison with the standards of the safety standard database 22, and then stored in the safety analysis database 24. And it is responsible for the function of transmitting to the terminal 10 of the safety analysis database 24 according to the user's request.

The safety standards database 22 stores safety standards for each operation. Safety standards include safety regulations, regulations, specifications, structural matters, work order, accident cases, etc.

Safety regulations are regulations prescribed by law and include matters related to the installation of safety facilities. Structural matters are structural safety-related, including concrete strength and curing period, period of staying in the ridge, load, and standards for excavation and earth protection.

The order of work stipulates the work that must be constructed in advance in order to perform a specific work, and in the case of the ABC order, it stipulates that B is omitted and cannot go from A to C.

Accident cases are classified and stored according to the type of work and work classification system, so that they can be searched and utilized.

New safety standards are additionally prepared according to the site size and construction characteristics and applied to the site.

The online schedule database 23 stores online schedules prepared by various partners, such as temporary civil engineering, construction, electrical facilities, and environmental plants. The online schedule includes information on the work place, the name of the work, the start date, the end date, the work period, the progress rate (%), the predecessor work, the follow-up work, the level of risk, the personnel, and the equipment for a specific work. Online schedule includes completed work and daily work, and weekly schedule (for one week) and monthly schedule (for one month) are preferable.

Work places are buildings, tools, floors, zones (areas), rooms (rooms), parts (walls, ceilings, floors), etc. You can make a list in advance and select them. Alternatively, it can be selected from drawings (2D, 3D, BIM).

The name of the job is selected from the selection in the standard work breakdown system or from a pre-made work list. In work content, describe the work to be done. For the work period, select the start date (day of the week), end date (day of the week), number of work days or time. In addition, the level of safety risk can be designated, and the type and grade of safety disaster can be designated with icons, etc.

Additionally, the number of workers and workers can be designated and assigned. In the material equipment, inflammable substances, mechanical equipment, and construction materials that require special safety-related attention can be designated.

The online schedule is written using a PC or smartphone, and if it is saved after completion, it is transmitted to the PMIS safety analysis server 20 of the headquarters.

The safety analysis database 24 stores the result of the control unit 21 comparing the safety standard database 22 with the online process schedule database 23 and analyzing the result.

When the online process schedule is created, the control unit 21 composes the overall process schedule by synthesizing the work contents by time slot for each location. Accordingly, it analyzes which tasks are performed simultaneously or sequentially in a specific place. After that, it is determined whether the planned work exceeds the safety standard through comparison with the safety standard.

Then, the calculated result is stored in the safety analysis database 24 and transmitted to the terminal 10.

3 shows an additional functional configuration of the safety standard database 22 according to an embodiment of the present invention.

3, the work classification system 221, the work list 222, the safety standards 223, and safety measures 224 information of the safety standard database 22 according to the present embodiment are included.

The work classification system (221) is a Work Breakdown Structure (WBS) that categorizes temporary construction, earthworks, construction work, electrical work, facility work, environmental work, and plant work into large work type, heavy work type, and small work type.

The work list 222 is a list in which work is divided by dong, floor, zone (zone), room, line, and area (wall, ceiling, floor) based on the work classification system 221.

In addition, the task list includes detailed tasks (Task, concrete level of reinforcement frame) at the bottom.

The safety standard 223 stores safety standards for specific tasks. It stores the contents of the safety standards of the work itself, and the standards for predecessor work, follow-up work, and spatial work in the top, bottom, left and right.

The safety measures 224 store information on how to take measures when the risk of a specific work is evaluated, related regulations, quantitative figures, and other site cases.

4 is a flow chart showing a safety analysis work process between a construction company and a partner company to analyze safety using the PMIS online process table according to each embodiment of the present invention.

First, referring to FIG. 4 according to an embodiment, the contractor and the partner establish safety standards for specific tasks (S10).

When the safety standard is created, it is systematically stored in the safety standard database 22 (S20).

Now, when the construction begins, the partner prepares an online schedule (S30). The partner company creates a process schedule with a smartphone and transmits it to the safety analysis server 20.

When the online process schedule of partners is completed, it is stored in the online process schedule database (S40).

When the online schedule is created, the risk is analyzed as the next step (S50). The control unit 21 reads job information from the online process schedule database 23. In addition, safety standards related to specific tasks are read from the safety standard database 22. And the work information and safety standards are compared.

As a result of comparison, if the safety standard is exceeded, it is quantitatively judged that there is a risk. The judgment result is stored in the safety analysis database 24.

The control unit 21 determines a state of a worker's preparation facility, equipment, etc. for performing a specific job. In addition, it comprehensively judges the risks of the preceding work, the following work conditions, work processes, and work taking place in the upper, lower, left, and right spaces surrounding a specific work.

In addition, the control unit 21 comprehensively evaluates the mutual effects and risks between jobs for all jobs in the field by referring to the criteria set in the safety standards 22.

As a result of the determination of the control unit 21, if the contents of the online process table are missing or difficult to read, and if there is no necessary information, the query contents are created.

Accordingly, when the manager of the partner company or the construction company checks the contents and corrects the online schedule 23 or writes an answer to the query contents, the control unit 21 performs the risk analysis (S50) again with reference to the answer (S60).

Next, when the risk analysis (S50 to S60) is completed, the control unit 21 stores the analysis result in the safety analysis database 24 and notifies the evaluation result to the terminal 10 (S70).

In addition, the control unit 21 may create countermeasure information such as a method of action for a risk or a procedure document, regulations and regulations. Countermeasure information may be prepared in advance in the safety standard database 22 and used.

The following is a preferred embodiment of the safety analysis using the on-line schedule of PMIS at a construction site according to the present invention.

The construction and safety officer of the construction company prepares the type of work and the work classification system. Construction types include skyscrapers, hospitals, schools, churches, and factories. Civil works include bridges, tunnels, ports, and subways.

The work classification system is composed of large engineering type, heavy engineering type, small engineering type and TASK by level. Digging, backfilling, foundation, reinforced concrete, steel structure work, plastering, masonry, waterproofing, electricity, equipment, etc. At the lower level of reinforced concrete, it is subdivided into reinforced construction, formwork, and concrete construction.

Next, prepare safety standards. For example, in frame construction, the order of steel frame installation, safety facility installation, deck plate installation, and reinforcement and concrete placement is prescribed.

When dismantling a temporary structure, the possible disassembly time point is defined in consideration of the curing and strength of the structure.

Accident cases are systematically stored by classifying existing accidents into construction type, work classification system, place, contents, cause, and contents of countermeasures.

Next, when a construction site is opened, construction and safety managers compose safety standards and work classification systems according to the characteristics of the site. The work classification system downloads the standard from the safety standard server and then divides the tool according to the characteristics of the site and subdivides it based on the scope of the construction contract of the partner.

When construction begins, suppliers connect to PMIS and create an online schedule. In the online schedule, the place to be worked, the name of the work, the start date, the end date, and the work time (morning, afternoon) are entered and schedule information is generated. Additionally, personnel, materials, equipment, and safety risk levels can be designated.

The content of the task is selected from the task list, text input, voice input, and task icon.

The input through voice can be learned so that PMIS can quickly and accurately recognize the names of tasks on the schedule by practicing pronunciation in advance.

For the level of risk, use the standard level set in the safety standards or select the level of risk that the schedule author thinks. For working hours, enter all day, morning, afternoon, and specific time zone. For safety matters, input the matters requested from the preceding work, parallel work, follow-up work partners, safety facilities and measures required.

Complete the online schedule in this way.

Next, the PMIS control unit synthesizes the contents of the online schedule entered by each of the suppliers and organizes the work of the entire site in the location and time series.

Afterwards, work at each site and compare with safety standards. Judge the work that exceeds the safety standards and analyze the impact and countermeasures.

For example, the control unit determines that the safety standards are exceeded when the following situations or tasks are performed. In construction sites, the following cases can lead to disasters.

In the case where B must not be omitted in the work leading to ABC, and C is constructed after A.

When safety facilities are dismantled and not restored.

In the top-down underground construction, it does not install structural materials (slab placement) in the structural dynamics required, but excavates (digging) the lower bench (supported soil), removes ground anchors, and removes temporary materials (columns, beams), etc. Occation.

In the case of hot work (welding sparks) near fire or combustible materials or in the same space.

When the copper bar (support) is dismantled before the slab concrete exhibits a certain strength.

When it is difficult to structurally support the load by dismantling the lower movable bar while the movable bar (support) is installed over several floors.

A condition in which electric shock may occur by supplying water while electricity is on.

Opening of a valve is initiated while high pressure is applied to the equipment piping.

In the case of starting work in the section without a fall prevention safety facility installed.

When constructing structures and temporary materials without obtaining necessary structural invoices and approvals.

The equipment operator and signalman must work together, but only the equipment operator is working.

In the case of construction without approval of materials or related documents that do not meet specifications or performance.

When the projected construction person is identified at the site for work details that are not in the online schedule (confirmation from the access control system).

Unauthorized construction of critical work.

If detailed work instructions such as scaffolding and system support are not correct (scaffolding, yoke, scaffolding, fall arrest net, etc.).

In the event of a fire in a high location due to high floor height, it is difficult to extinguish the fire by the currently equipped fire extinguishing equipment and personnel.

Work plans that do not reflect the weather (fog, rain, strong cold, etc.).

As another example, if four companies are planning to work in an electric room on the 4th floor below the ground, after analyzing the work contents in the electric room, it is analyzed whether there is any work exceeding the safety standard. When several tasks are carried out at the same time, the impact of interference collisions is analyzed.

Next, analyze the work in different places. In addition, vertical safety standards are analyzed for work such as piping that runs up and down on the system, such as equipment.

For work exceeding the safety standard, the degree of risk can be displayed by stage, level, and grade. The size and impact of disasters expected at the site can be displayed in order of size.

The control unit can express the work of a number of companies constructed in a specific space in the form of a bar chart process chart or a process chart in the form of a network, or display it in the form of text or work icons on a plan surface or in a 3D space.

Next, the control unit of the PMIS stores the safety analysis result in the safety analysis database 24. Notify construction companies and partners of work and countermeasures that exceed safety standards. Then, the contractor and business partners modify the online schedule or adjust the construction plan.

In this way, facility supplementation, work order adjustment, and plan change are repeated until all work is safe.

As described above, one example was given in this embodiment, but according to the present invention, safety management is performed so that the work is carried out within the range of the safety standards systematically set in advance for all work in construction and industrial sites. I can.

Partners working at construction and industrial sites can access PMIS with a smartphone, download the online schedule app, and quickly and easily write the contents of the online schedule with a predetermined work place and list. When the online schedule is created, the control unit compares the vast amount of standards and data cases to analyze the locations and situations where a disaster may occur at the site. As such, the present invention can be used immediately in the industry.

Terminal(10)
Safety Analysis Server(20)
Control unit (21)
Safety Standard Database (22)
Online schedule database (23)
Safety Analysis Database (24)
Work classification system (221)
Task List(222)
Safety Standard Database (223)
Safety measures (224)

Claims (2)

As a device to prevent safety accidents using process schedules in construction and industrial sites,
Store the safety standards of the work
By comparing the safety standards of the above work and the work on the schedule
Control unit to analyze the risk of work;
A safety risk analysis device through a process schedule analysis, characterized in that the safety risk is calculated by analyzing the process schedule including a. As a method to prevent safety accidents using process schedules in construction and industrial sites,
Establishing and storing safety standards for work;
The step of preparing a schedule on site;
Comparing the safety standard with the work content on the process schedule;
Analyzing safety risk because the work content exceeds the safety standard;
Notifying the result of the safety risk analysis;
A safety risk analysis method through a process schedule analysis, characterized in that the safety risk is calculated by analyzing the process schedule including a.

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