scholarly journals Hazards identification and risk analysis in surface mines of Pakistan using fault tree analysis technique

2021 ◽  
Vol 15 (1) ◽  
pp. 119-126
Author(s):  
Saira Sherin ◽  
Zahid-ur Rehman ◽  
Sajjad Hussain ◽  
Noor Mohammad ◽  
Salim Raza
Keyword(s):  
Risk Assessment ◽  
Preventive Measures ◽  
Fault Tree ◽  
Research Work ◽  
Safety Data ◽  
Fault Tree Analysis ◽  
Tree Analysis ◽  
Surface Mines ◽  
Analysis Technique ◽  
Mine Accidents

Purpose. Technology has advanced significantly but still mining industry faces a higher number of accidents. The purpose of the research is to identify the common hazards and associated risk which are the root causes of accidents in surface mines of Pakistan and to suggest the preventive measures to enhance safety at workplace. Methods. Integrated approach used in this research work involves: collection of mine accidents data from related Government departments; occupational safety data collection from mine sites with questionnaire; fault tree analysis method applied based on three groups of factors/causes obtained from 3E’s Model i.e. Engineering, Education and Enforcement that causes accidents in mine; risk assessment and suggestion of preventive measures. Findings. In this study forty three root causes of accidents in surface mines are identified and presented as basic events and undeveloped events in the Fault Trees. A compressed picture of the root causes is revealed leading to accidents in mine. The main causes identified are human errors, unsafe operating procedure, lack of machinery, lack of personal protective equipment, environmental and haulage related hazards and violation of law. Originality.The root causes of accidents in surface mines have been identified. For the first time, the visual paths to accidents causation in surface mines of Pakistan are outlined through fault tree analysis technique. Practical implications. The identified causes of accidents along with the suggested preventive measures can be used to avoid/curtail the number and severity of accidents in surface mines and can save lives of workers and economy. Keywords: hazards identification, surface mine, accidents, fault tree analysis, risk assessment, preventive measures

Comprehensive risk assessment of river basins using Fault Tree Analysis

2019 ◽  
Vol 577 ◽  
pp. 123974 ◽  
Author(s):  
Mahdi Gachlou ◽  
Abbas Roozbahani ◽  
Mohammad Ebrahim Banihabib
Keyword(s):  
Risk Assessment ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
River Basins ◽  
Tree Analysis

Model-Based Risk Assessment of Offshore Operations

2014 ◽  
Author(s):  
Christoph Läsche ◽  
Jan Pinkowski ◽  
Sebastian Gerwinn ◽  
Rainer Droste ◽  
Axel Hahn
Keyword(s):  
Risk Assessment ◽  
Process Model ◽  
Expert Knowledge ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Specification Language ◽  
Specific Situation ◽  
Analysis Tool ◽  
Tree Analysis ◽  
Offshore Operations

Safety and dependability are major design objectives for offshore operations such as the construction of wind farms or oil and gas exploration. Today processes and related risks are typically described informally and process specification are neither reusable nor suitable for risk assessment. Here, we propose to use a specification language for processes. We integrate this specification language in a generic modeling approach in combination with an analysis tool and a tool to construct health, safety and environment (HSE) plans — a mandatory document for granting a construction/operation permit. Specifically, for each planned scenario a process is modeled, describing the detailed operation of the involved actors as well as the interaction with resources and environmental conditions. We enrich this process model with hazardous events which is facilitated by integration with an offshore operation generic hazard list, thereby giving access to expert knowledge for the specific situation to be planned. This in turn allows us to perform an automatic quantitative risk assessment using fault tree analysis. We exemplify our approach on a standard offshore operation of personnel transfer from an offshore building to another naval unit by modeling, annotating with hazards, performing the fault-tree analysis, and finally generating HSE plans.

scholarly journals An application of safety analysis technique for thermal optimization of a paper machine

2015 ◽  
Vol 19 (3) ◽  
pp. 1059-1066
Author(s):  
Naveed Ramzan ◽  
Mohsin Kazmi ◽  
Faisal Manzoor ◽  
Nadeem Feroze ◽  
Werner Witt
Keyword(s):  
Fault Tree ◽  
Fault Tree Analysis ◽  
Paper Machine ◽  
Tree Analysis ◽  
Analysis Technique ◽  
Energy And Exergy ◽  
Recovery System ◽  
Energy And Exergy Analysis ◽  
Operational Issues ◽  
Condensate System

This investigation proposes a systematic framework based on the Fault Tree analysis, for the energy and exergy optimization of a paper machine. In the first step, energy and exergy analysis was performed on the dryer section and its related steam and condensate system, to assess the existing performance of paper machine. In the next step, checklists were developed for the identification of key safety and operational issues related to the steam and condensate system. Then, a fault tree analysis was applied to make out and resolve the root causes. Corrective actions were taken in order to rectify various problems. As a result, energy and exergy efficiencies of the system increased by 22% and 14 % respectively. Moreover, an improvement in steam and condensate recovery system was observed.

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