1.0 ABSTRACT Giant Leap Construction (M) Sdn.Bhd which was established in 2014 with its head office based at Setia Indah, Johor. Giant Leap Construction core activities are property development, building construction & civil engineering. Giant Leap Construction current operations are now based at Forest City, Johor Bahru as the company have been awarded two construction projects. This Workplace Assignment has been prepared for slab concreting works at landed House at Plot 18 Forest City Project. The purpose of this Workplace Assignment (WPA), working with slab concreting works at Roof was chosen is to assess the risk associated. The objective of the WPA is to identify, prioritize and determine the risks and effects of the safety and health hazard. Recommendation and review programs can be proposed based on the assessment carried out. The standard methods used in identifying hazards are walk- through observation and inspection, personnel/workers interview and Job Safety Analysis (JSA). Visual observation and inspection was carried out where hazards were identified from various source such as man, machine, method, material and media. Interview session with the workers involve with slab concreting works provide opportunity for the workers to discuss their recent experiences in performing their duties and responsibilities. Job Safety Analysis (JSA) can be used to identify hazard involved in each single step and the control measure to eliminate, mitigate each hazard acknowledged and described. The assessment which focused on the slab concreting works and its surrounding condition which is the viaduct has obstruction doing rebar installation, Concrete pipe stuck, poor installation of false work and entanglement as safety hazard. For health hazard is working during hot sun and noise from concrete pump are identified. From the risk assessment using semi quantitative method, Poor installation of false work and noise from concrete pump machine were identified as the most critical safety and health hazard. The risk value of 20 (high) for most critical safety hazard is given based on the works carried out by the workers and the risk of the works. The work involves 8-10 trained workers only and unauthorised workers are strictly not allowed to enter the area. For noise from the machine, risk value of 15 for the most critical health hazard is given based on the workers exposure and feedback from workers. To control the most critical safety hazard, adequate training need to be given to the workers involved. The workers should follow all the control measure propose in HIRARC. For excessive noise from the machine the management can do noise monitoring and provide adequate PPE. Improvement in Occupational Safety and Health and work organisation enhances the productivity by lessening the number of interruptions in the power up process by reducing absentees by decreasing the number of accident and improving work efficiency. It is to benefit the workers because they can run less risk of injury or illness and enjoy a safe and health work culture. 1 2.0 INTRODUCTION I am employed with Giant Leap Construction (M) Sdn. Bhd. My company is involved in construction sector. At present our companies involved in projects: I. GD PROPERTY NILAI HIGH RISE BUILDING II. PLOT 18 GOLF – LANDED PROPERTY Country Garden Pacific View Sdn. Bhd III. PLOT 2 CENTRAL PARK HIGH RISE BUILDING Country Garden Pacific View Sdn. Bhd I am assigned as site safety supervisor at my workplace. I need to ensure the Safety, Health and welfare of person at work and provide guidance on safety and health arising. The content in this report is to outline all the Hazards during conducting Slab & wall Concreting Works. This report begins with introduction of the company, activities, work process and environment, identification of hazard at work place, priorities the hazard following the Matrix system and determine the most critical hazard, explain the control measures taken to control the hazard following the Hierarchy of Control. I believe this report will be the guide to the company HSE objective. 2 I. Site office II. Project title 3 2.1 Organization chart 2.2 Company logo 4 2.3 Company background Giant Leap Construction (M) Sdn. Bhd had been registered with Companies Commission of Malaysia since 2nd January, 2014 (Company No: 1076133-P) in compliance with the COMPANIES ACT 2016, with paid up capital of RM 5 Million. Our business covers property development, building construction and civil engineering. Giant Leap Construction (M) Sdn. Bhd is one of the main contractors of Country Garden Pacific view Sdn.Bhd the developer of Forest City project in Johor Bahru and mainly involved in high-rise condominium apartments with podium (elevated car park) an associated works. We actively engage in building construction works by using advanced building technologies and management technics, aim to provide a comfortable and environmental friendly living experience for residents. We are stringent on recruiting staff and project team as we believe quality team produces quality products and would make great difference in terms of customer satisfaction. 5 Company registration 6 Site entrance 7 2.4 Activities, work process, work environment, job tasks and hazard associated. Activities Slab and wall concreting works. Work process First of all, we have to conduct marking for the place where we going to construct a slab& wall. Then the formworks work will have conducted by formworks team using plywood, scaffolding and timber. The rebar team also will follow them to install the rebar cage. Before concreting works, consultant from client will come for inspection. The place need to clean before inspection. The concreting works will have conducted after inspection using the concrete pump truck. Work environment The working environment can be categorized as within BOWEC (building operation and works of engineering construction), Noise exposure and mineral dust 8 Job tasks Formworks installation 9 Rebar preparation 10 Concreting works 11 3.0 OBJECTIVE Our most important book that is Occupational Safety and Health Act (OSHA) 1994, stated section 15(b) “It shall be the duty of every employer and every self-employed person to ensure, so far as practicable, the safety, health and welfare at work place of all his employees.” Objective related to the OSH Act is, the Occupational Safety and Health Act 1994 is an Act to make further provisions for securing that safety, health and welfare of persons at work, for protecting others against risks to safety or health in connection with the activities of persons at work, to establish the National Council for Occupational Safety and Health, and for matters connected with it. The objective of this assignment is to identify the safety and health hazards at work place and determine the most dangerous occurrence during the work process at various operation Department and Sections in the Giant Leap Construction (M) Sdn. Bhd. After the process of identifying the hazards, all the findings, control measure suggestion and recommendation will be present to the Management for further improvement and implementation as far as practicable. As safety and health is concern, no one shall ignore or feel negligence to comply the requirement of law. Safety and health must be improving from time to time shall be a moral of obligation to everyone. 12 The objective of this workplace assignment is: To identify the safety and health hazards exist at the workplace chosen To discuss the methods used to gather and record all the hazard that has been identify and the employee who actually exposed to the hazard. To prioritize the hazard based on risk matrix to determine the severity and the likelihood of occurrence and rationalize the most critical hazard. To determine the consequences of injury, damage or loss likely to occur as a result of being exposed to the hazard To proposed control measure by preventive and corrective action taken for each critical health and safety hazards. To implement review program on the effectiveness of the proposed control measures. To complete the work scope without any incidents or accidents 13 4.0 METHOD 4.1 Hazard identification Techniques i. Walk Through Survey/Inspection – Safety review of the overall work place facility through observation and information review with a supplemented by Checklists. This inspection will carry out by the Client Representative Manager, Project Undertaking and HSE Representative. The participants are the key personnel to manage and control risk at the work place and have good knowledge of the equipment, procedures, materials and people involved in the activities. The basic observation from this walk-through survey shall be: Process Number of workers involved Tool and Equipment Work at height Electrical Work Fire Protection Work Platform Material Handling Emergency Response 14 ii. Manual lifting Housekeeping PPE Checklists- The advantages of using well design checklists are shall provide an aid to memory to ensure that important items of equipment or machinery, or aspects of work processes are not overlooked. Enable a standardized approach to work place inspection. Provide a system of accountability for safety and health management by giving some of the records necessary for performance assessment and supplement other techniques. iii. Preview and review legislation and other relevant Codes and Practices, Safe Operating Procedure (SOP) and Work instruction. iv. Accident and incident investigations. v. Job Hazards Analysis-Based on the work process, the steps of each work activity will be listed out in sequence. In this guide, each steps of the process are referred to as a work activity and start off the risk assessment process. vi. Identifying safety and health hazards at the workplace. We need to identify hazards common to the entire work site, hazards at specific location, identify consequences associated with the hazards, control measures associated with the hazard and assess the risk based on Risk Matrix. 15 4.2 Risk Assessment Method 4.2.1 Semi Quantitative Method In semi quantitative method analysis, qualitative scale such as magnitude of potential severity and the likelihood are given values. Likelihood of an occurrence is based on the likelihood of an event occurring. Likelihood levels range from “most likely” to “inconceivable”. Table 4.1 indicates likelihood using the following values. Table 4.1 Likelihood of an Occurrence Likelihood(L) Description Rating Most likely The most likely result of the hazards / event being realized 5 Possible Has a good chance of occurring and it’s not unusual 4 Conceivable Might be occur at sometimes in future 3 Remote Has not been known to occur after many years 2 Inconceivable Is Practically impossible and has never occurred 1 16 Severity can be divided into five categories. Severity is based upon an increasing level of severity to an individual’s health, the environment or to property. Table 4.2 indicates the severity by using the following: Table 4.2 Severity(S) Severity of an Accident Description Catastrophic Numerous Rating Fatalities, irrecoverable property damage and 5 productivity Fatal Approximately one single fatality or major property damage if 4 hazard is realized Serious Non-fatal injury, permanent disability 3 Minor Disabling but not permanent injury 2 Negligible Minor abrasions, bruises, cuts, first aid type injury 1 17 Risk calculation is according to the following formula: L x S = Relative Risk, where L = Likelihood and S = Severity Presenting result in a risk matrix is a very effective way of communicating the distribution of the risk throughout a plant and area in a workplace. Table 4.3 shows the risk matrix where yellow colour indicates the high, blue (medium) and green (low). To use this matrix, first find the severity column the best describes the outcome of risk. Then follow the likelihood row to find the description that best suits the likelihood that the severity will occur. The risk level is given in the box where the row and column meet. The relative risk value can be used to prioritize necessary actions to effectively manage work place hazards. Table 4.4 determines priority. Likelihood Severity (S) (L) 1 2 3 4 5 5 5 10 15 20 25 4 4 8 12 16 20 3 3 6 9 12 15 2 2 4 6 8 10 1 1 2 3 4 5 Table 4.3 Risk Matrix 18 Table 4.4 Risk ranking and Action to be taken Risk Description Action 15-25 High A HIGH risk requires immediate action to control the hazard as detailed in the hierarchy of control. Actions taken must be documented on the risk assessment from including date for completion. 5-12 Medium A MEDIUM risk requires a planned approach to controlling the hazard and applies temporary measure if required. Actions taken must be documented on the risk assessment form including date of completion 1-4 Low A risk identified as LOW may be considered as acceptable and further may not be necessary. However, if the risk can be resolved quickly and efficiently, control measures implemented and recorded. 19 should be Example For example, the safety hazard during rebar installation there will be edge opening. The likelihood (L) is conceivable (Might be occur at sometimes in future) with the value of 3. The severity (S). Approximately fatality or injury if hazard has realised which the value is 4. So, Risk = Likelihood x Severity 3 x 4= 12 The risk value of 12 can be classified as medium risk where planned approach to control the hazard required. The health hazards example can be from the workers operating the concrete pump. Hazard identified is noise from machine and the likelihood is most likely (5) and severity is (3). Risk = Likelihood x Severity 5 x 3 = 15 The risk value of 15 can be classified as high risk where immediate action to control the hazard required. 20 4.2.2 Assessing the Risks Risk assessment is the process of evaluating the risk to safety and health arising from hazards at work. The risk assessment (HIRARC) for this assignment was conducted by applying the following 5 steps: Step 1: Look for the hazard Step 2: Decide who might be harmed and how Step 3: Evaluate the risk and decide whether the current control is adequate Step 4: Record the evidence and the findings Step 5: Review and recommend appropriate risk control measures 21 4.2.1 Process Flow Classify Activities (Basic Sequence of Work, Product, Services, Job Steps, Tasks, Process) Identify Hazards (Identify hazard, its effect and current risk control) Assess the risks (Determine the probability, severity and the risk ranking, referenced, legislative requirements Risk Control (Recommended short and long-term preventive and corrective action, assign person-in-charge, when control to be implemented Review of HIRARC (Review the risk control including the effectiveness of the whole HIRARC process) 22 Process of Risk Management 5.0 Result and Discussion 5.1 Hazards Chosen Based on work activity: Current Activity Hazard control Effect Risk rating L S R 4 2 8 Proposed Control Measures measures Rebar bending process Rebar installation at height & edge of the building Entanglement on uncover rotating parts or moving parts Edge opening Injury -Provide training /toolbox how to use the machine safely -Install guarding / cover at rotating parts -Assign more skill workers -Wearing proper PPE Fatality, Injury -Training /toolbox training regarding rebar installation. -Wearing Safety harness PPE 3 4 12 -Provide a safe working platform with guardrail, fence, and install edge protection inspected by competent scaffolder. -walkway by using scaffold plank / catwalk. -Proper Material and Equipment arrangement -Full time supervision 23 Current Activity Hazard control Effect Risk rating L S R -Slump test will 2 conduct to identify the concrete whether dry/wet 4 8 Proposed Control Measures measures Concreting work concrete pipe stuck Fatality, Injury -Pipe cleaning at the end of each concreting activities. -Training to relevant workers on the working procedure -Wearing of proper PPE 24 -Secure the hose/pipe connection before concreting activities. -Proper Maintenance periodically -Assign skill workers for handling concrete pump. -Assign concreting supervisor to supervise the concreting activities Current Activity Hazard control Effect Risk rating L S R 4 5 20 Proposed Control Measures measures Concreting works Poor installation of false work Catastrophic, Fatality, Injury -Training/ toolbox, briefing regarding formwork & false work installation before start concreting -Inspection need to be conducted by person in charge -False work design been endorsed by PE -Wearing proper PPE -Installation of formwork according to PE design and inspected by appointed competent person by PE -Appoint concreting supervisor to monitor fully on concreting activities -Immediate supervisor aware of SWL stated on PE design -Appoint more skill workers for formwork and false work preparation -Pre-task briefing to the workers -Use materials which been approved by CIDB in installation of false work -All the used materials need to be inspected before use by person in charge. 25 -Barricade the work area to avoid non relevant workers entering - Usage of fall prevention methods such as Safety harness (PPE) HEALTH HAZARD Current Activity Hazard control Effect Risk rating L S R 4 1 4 Proposed Control Measures measures Rebar Installation Operating concrete pump Direct heat from sun Noise from machine Health Hearing problem -Every 2-hour break for workers -Training /toolbox training regarding rebar installation. -Training/ 5 toolbox regarding operating machine. - Wearing proper PPE such as ear muff /ear plug 3 12 -Need prepared water facilities for workers -Sufficient temporary shelter or rest area near work area -Risk assessment before purchase of new machine -On job training -Audiometric test -Noise monitoring -Work rotation -Personal protective equipment (ear plug) 26 5.2 Safety hazard and health hazard Entanglement on rotating parts This issue is very common at construction industry during bar bending works going on. Workers need continuous training to use the machine. We can do some engineering control to reduce down this hazard. Edge Opening during rebar installation While preparing rebar work near edge, there is chances for workers fall down due to the edge opening. These hazards never happen at my site but heard from others place. But still can cause fatality. Concrete pipe stuck Concrete pipe stuck might be happen during concreting works. It’s can cause very serious injury and also can cause fatality and property damage. Poor installation of false work False work collapse on workers during concreting works happen at other place recently which cause fatalities and injuries. In most case the fatality case incur in this kind of accident usually 27 more than one workers, Due to this condition Installation of false work must be done according to the method statement. These consider most critical hazard at my work place. Working under direct heat (sun) Working during hot sun can heat stress for workers. Basic welfare to workers such as clean drinking water and proper shelter (temporary / permanent) must provide water facilities for workers. Noise Noise from concrete pump machine can cause hearing problem for workers involved in concreting activities. 5.3 Most Critical Hazard According to the Assessment of hazards list above, the most critical safety and health hazards are identified using Risk Matrix Table. The most critical hazards were analyzed where the impact of the hazard exposure and consequences very high to workers. The following are the most critical SAFETY and HEALTH hazards: 5.3.1 Most critical safety hazard Poor installation of false work –There is high chance of false work collapse during concreting works. There are many possible issues which can cause false work to collapse such as: I. Usage of damage material II. Not provide valid PE design for false work installation 28 III. False work Erection not follow PE design IV. Doesn’t have any competent scaffolder to inspect the false work V. Incompetent personnel being involved in false work installation If false work collapse it can be involved more than one worker. It can cause serious injury or fatality for workers. False work 5.3.2 Most critical health hazard Noise from concrete pump machine–Although the concrete pump machine located at open space, the continuous sound from concrete pump which measured around 82 dB effecting workers hearing sense. For long run this activity will effect the workers hearing sense if there is no action taken to prevent this unsafe condition. 29 Noise level table 5.4 The impact of the most critical safety and health risks. The impact from the most critical safety and health hazard might cause the fatality, disable, hearing problem and property damage. 30 6.0 Recommendation Hierarchy of Control used as guidance at the source of the hazards: Eliminate- Remove the cause of danger Substitute- replace the hazardous work practice with an alternative Isolate- Separate the hazard from the people at risk Engineering Control- Physical changes to reduce the risk Administrative Control- Written procedures, Work organization, Supervision and inspections, job rotation, Training (e.g. Task specific) PPE- Safety boots, Gloves, Ear muff/Ear plug, Eye wear 31 6.1 Control Measures of safety hazard (Preventive and Corrective Action) Poor installation of false work a) Barricade the work area – To prevent any unauthorized entry at false work area during concreting works being held. (Isolate) b) Every installation of false work need to followed provided PE design. This will reduce chances of any unsafe installation of falsework components. Thus will gave the falsework enough strength to withstand the weight. (Administrative Control) c) Need to appoint scaffold inspector to inspect the falsework. The person should be competent person registered with DOSH and appointed by PE. The inspection need to done before concreting starts. Rectification need to be done immediately if scaffold inspector made any comment or put a red tag. (Administrative Control) Red tag d) The Immediate supervisor need to be aware of safe working load (SWL) stated on PE design. This will help him to calculate the number of workers allowed work above a false 32 work. He should no allowed excessive numbers of workers beyond given SWL. (Administrative Control) e) Appoint more skill workers for false work preparation. This is to avoid incorrect installation of any component. (Administrative Control) f) The immediate supervisor need to conduct a pre-task briefing to the workers. During the briefing he should stress on SOP and hazards and control measures during the task. (Administrative Control) g) It is advisable to use materials which been approved by CIDB in installation of falsework. The approval letter need to be obtain from the supplier. (Administrative Control) h) It is important that all the used materials need to be inspect by person in charge. From there we can identify which material can be use and damaged material need to be probated to use. (Administrative Control) 33 i) Personal Protective Equipment- Workers need to wear proper fall protection such as safety harness attached with lifeline which install separate from the false work. In case of false work collapse this may save them from fall to lower level. (PPE) 34 6.2 Control Measures of health hazard (Preventive and Corrective Action) Noise a) Employer need to provide training on SOP of concrete works to workers. (Administrative Control) b) Employer needs to do proper risk assessment before purchase or rent of noisy equipment. (Administrative Control) c) Training and lectures to teach and remind worker on safe work practices and health effects related to noise exposure. (Administrative Control) d) Audiometric test need to be conducted. (Administrative Control) e) Conduct noise monitoring at worksite. (Administrative Control) f) It is advisable to practice work rotation such as work on shift. (Administrative Control) g) Personal Protective Equipment - Workers should earmuff/earplugs during works. (PPE) 35 6.3 PROPOSED REVIEW PLAN Review plan is crucial to ensure the effectiveness of proposed control measure and to identify new hazards. The effectiveness of the proposed control measures highly depends on the safety and health commitment of the whole team including the employer and the employee. Control measure is most effective when everybody complies with safety manual and instruction provide within the yard and organization. However, the control measure should be reviewed from time to time when there are changes in the task process and work environment to generate a safe and healthy working environment. Hazard Review Program for Frequency Control Measure 1.collapse of false work Monitoring of Daily compliance to the proposed measures Person-incharge False work Supervisor and appointed scaffolder 2. Noise from machine Briefing on Safe Work Procedure Re briefing on Safe Work Procedure 36 First day of work for new staff Safety Supervisor Safety Monthly Supervisor I. ASSIGNMENT OF RESPONSIBILITY A. Employer 1. Monitor the effectiveness of the program. 2. Propose to concrete supplier to do slump test often. 3. Provide personal protective equipment as needed. 4. Provide training to affected employees and supervisors. 5. Provide technical assistance as needed. 6. Preview and update the program on at least a monthly basis or as needed. B. Management staff 1. Ensure training of personnel is conducted and documented. 2. Coordinate with workers 3. Ensure that equipment is in compliance with standards. 4. Ensure the concrete pipe inspection is conducted. 5. Ensure the monthly maintenance inspection and checklist is going on. 6. Ensuring that necessary information on chemical hazards is kept at the worksite for the employees or rescue team. 7. Ensuring a rescue team is available and instructed in their rescue duties. 8. Prepare first aid box and the place for emergency C. Employee 1. Complete training. 2. Concreting Works follow SOP. 3. Follow management instruction. 4. Wear PPE during working time. 37 II. TRAINING Training provided so that all employees will have understanding, knowledge, and skills necessary for the safe performance of their duties in confined spaces. A. Training Frequency Responsible Person shall provide training to each affected employee. The training shall establish employee proficiency in the duties required in this program, and shall introduce new or revised procedures, as necessary, for compliance with this program. B. Specific Training 1. Training for machinery using a. proper use of the equipment; b. calibration of equipment; c. sampling strategies and techniques; and 2. Training for Emergency Response Personnel shall include: a. first aid and CPR techniques; and C. Health Surveillance Employees should be certified physically and mentally fit, preferably by OHD and internal medical surveillance by onboard medic. III. EMERGENCY RESPONSE A. Emergency Response Plan Maintain a written plan of action that has provisions for conducting a timely rescue of individuals within emergency arise. All affected personnel shall be trained on the Emergency Response Plan. 38 6.4 BENEFITS OF RECOMMENDATIONS Effective implementation of the control measures will provide the following benefits to the organization: Compliance to the legislative requirements, OSHA 1994/Act 514 and FMA 1967. Both employer and employees are more aware of the importance in creating a safety and healthy working environment which is safer and more comfortable to work in. Minimise any chances of accidents or loss time injury. This results in increase the workers morale and confident to carry out their duties and also increase productivity. Subsequently, this will minimise the hidden cost from an accident. Enhance Company’s corporate image by having a safe, clean and healthy working environment. Furthermore, as this is a national project, both country and the nation’s image should be taken care off. 39 7.0 References / Sources 1) Book Reference: i) OSH Module 1, 2, 3 and 4 ii) Occupational Safety and Health Act And Regulations (22nd Edition) MDC Publisher Sdn. Bhd May 2015. iii) Factory and Machinery Act with Regulation: MDC Publisher Sdn. Bhd March 2014. 2) Web Site Reference: i)DOSH http://www.dosh.gov.my/index.php/en/archive-osh-info/2015/1645collapse-of-a-concrete-floor-structure-of-the-under-construction-buildingat-selayang-prima-selangor http://www.dosh.gov.my/index.php/en/archive-news/2018/1968-pmuruntuh-notis-henti-kerja-serta-merta-berita-harian-online http://www.dosh.gov.my/index.php/en/archive-news/2018/1967-konkritruntuh-timpa-lelaki-bangladesh-harian-metro-online http://www.dosh.gov.my/index.php/en/archive-news/2017/1942-buruhbangladesh-cedera-alang-konkrit-runtuh-berita-harian-online http://www.dosh.gov.my/index.php/en/archive-news/2017/1922-ramaipekak-kerana-kerja-berita-harian-online 40 http://www.dosh.gov.my/index.php/en/archive-news/2017/1902-701hilang-pendengaran-di-tempat-kerja-harian-metro-online https://www.facebook.com/doshmalaysia/photos/a.850192175139945.107 3741828.833867783439051/1173047516187741/?type=3&theater https://www.facebook.com/doshmalaysia/photos/a.854826431343186.107 3741829.833867783439051/1160168710808955/?type=3&theater https://www.facebook.com/doshmalaysia/photos/a.854826431343186.107 3741829.833867783439051/1158229671002859/?type=3&theater ii)The Star https://www.thestar.com.my/news/nation/2014/12/25/lrt-formworkcollapses-one-dead-and-rescuers-scramble-to-save-a-trapped-worker/ https://www.thestar.com.my/news/regional/2017/03/29/two-killed-inscaffold-collapse/ iii)Global Construction Review http://www.globalconstructionreview.com/news/calls-stricter-scaffoldsaf7ety-mala7ysia-aft7er/ 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 8.0 APPENDICES i) Shoring and Scaffold Material Inspection Checklist 56 57 ii) Falsework inspection checklist 58 iii) Rebar machin SOP 59 iv) Rebar mill certificate 60 v) Photo a) During Internal Inspection with subcontractor b) During Safety Induction 61 c) During Toolbox meeting d) During training session 62 e) UTHM student visit 63 f) Weekly safety meeting 64 65 66 67
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