PSI - Issue 48

Bouzerara et al / Structural Integrity Procedia 00 (2023) 000 – 000

Ramdane Bouzerara et al. / Procedia Structural Integrity 48 (2023) 4–11

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This is the starting point for any sustainable and long-term management of a company, also to avoid any kind of physical, material and environmental damage. Thus identification, analysis and classification of risks allow us to define the most appropriate prevention actions, covering technical, human and organizational dimensions (Rachid et al., 2015). This is an essential element that is regularly renewed in order to build a risk prevention and management policy in companies. It is, therefore, necessary to identify, for each activity in the different areas of the company, all the hazardous situations likely to occur. The PRRA is one of the main levers for progress in a company since it can contribute to improving its operations throughout its development (Guinan et al., 2019), (Carayannis et al., 2015), by consolidating the control of proven risks, but also by pointing out the appearance of risks with deferred effects or new risks, in particular those linked to new organizations or new industrial processes (Brad Hardin and Dave McCool, 2015). The primary objective of this assignment is to address a practical case of risk assessment in a business. However, the purpose of this study was to identify potential hazards using hazard identification methods and risk assessment methods using the HIRA method. The process of risk assessment is to examine the hazards and then eliminate the hazards or reduce the level of risk by adding risk control measures, if necessary. This will make the workplace safer and healthier. Therefore, the health and safety of employees must not be dissociated from the operation of the company (technical choices, work organization, mobilization of skills, and training...). The implementation of a prevention approach will contribute to improving the company's performance on a human and economic level. 2. TOOLS AND WORK METHODOLOGY As a working tool, we used the HIRA (Hazard Identification Risk Assessment) method. This method allows us to identify hazards and evaluate risks (Devdatt P Purohit et al., 2018), (Falakh and Setiani, 2018). It is based on the principle of planning the work in a safe way to prevent an accident. The advantage of this method lies in the information and awareness of the workers of the risks identified in situ, which makes it possible to align the safety culture of your company with your objectives (KOSMOWSKI, Kazimierz and GOŁĘBIEWSKI, Dariusz, 2019) , (Ferjencik, 2011). As a result, each line manager must communicate and explain the results of the risk analysis to the personnel under his responsibility. Today, most of our accidents are caused by inadequate preparation or lack of risk detection. The rating grids used in this approach are as follows, tables 1-5. Table 1: Matrix for determining the level of exposure Matrix N°1 Exposure Level (E.L)

Work station

15 min to 1 h

> 4 h

1 to 4 h

< 15 min

10 10

10

7 7 4 1

7 4 1 1

Daily (more than 150 days/year) once to several times/day

Weekly (50 and 150 days/year) Monthly (10 and 49 days/year)

one or more times/week one or more times/month one or more times/year

7 4 1

7 4

Annually

Repeatability

Table 2: Matrix for determining the Severity Level (S.L)

Matrix N°2

Severity Level (S.L)

Very serious Serious Serious

The risky situation may lead to a serious accident with a work stoppage of more than 3 months or to an irreversible handicap or to a fatal accident 10 The risk situation may lead to an injury requiring only nursing care or to an accident without time off work 4 The risky situation can lead to a serious accident with a work stoppage 7

Semantics

Disturbing The risk situation does not lead to an injury, but to discomfort

1

Generally, the gross risk is given by the formula: R=G*D*F, where G is severity of damage, F frequency, D duration of exposure to the hazard, P probability of occurrence of this damage under the undefined circumstances. The level of risk control is calculated on the basis of the formula: LM = EL* SL* LP.