Construction Safety Management of Mechanical and Electrical Installation Projects

Various industries today rely on the support of electromechanical equipment,expanding its scope of application and leading to an increase in electromechanical installation projects.However,due to the high level of expertise required and the potential risks involved,it is crucial to emphasize safety management during construction.This paper delves into the significance of construction safety management for electromechanical installation projects,identifies common problems encountered during construction,and proposes solutions.This analysis aims to provide relevant personnel with essential guidance and references for managing electromechanical installation projects safely.

Study on the evaluation system for the coal safety management based on risk pre-control

The new type of risk management is process management. First, the hazardsources are identified before coal mine accidents occur, and then the pre-control measureand information monitoring method based on classifying the hidden hazard sources aregiven. Lastly, the risk pre-alarm and risk control method are confirmed, the managementstandard and management measure are used to eliminate the hidden hazard sources. Inthis study, an evaluation system is built to evaluate the result of risk management.

Perception and Uses of Stakeholders＇ Power on Health and Safety Risk Management in Construction Projects in Tanzania

Key project stakeholders such as clients, consultant teams, contractors and workers have different sources of power to implement projects. How these powers influence health and safety risk management is not well documented. This article therefore assesses the perception and uses of stakeholders＇ power on health and safety in risk management in construction projects in Tanzania, specifically focuses on sources and types of power, how stakeholders perceive their power, how they use power on health and safety risk management, and what factors hinders their use of power. A case study strategy was adopted and four large on-going construction projects in Dar es Salaam Tanzania were involved. Data was collected through in-depth interviews with clients, consultants, contractors and construction workers. Findings indicate that stakeholders have different sources of power such as technical expertise, legitimate, political position, resources information to influence health and safety risk management. Nonetheless, the use of these powers was generally limited due to low level of knowledge on health and safety risk management among stakeholders, wrong perception on their roles, insufficient health and safety regulations and weak procurement system. The research recommends that, in order to realize health and safety performance through using stakeholder＇s power, there is a need of clear definition of stakeholders＇ role and responsibilities on health and safety, wide knowledge and experiences on health and safety risk management, strong regulatory system and procurement system.

Safety Management Strategies for Cross-railway Interchange Widening Project in Highway Reconstruction and Extension

Under the background of rapid social and economic development,the traffic volume of highways has increased,which has brought tremendous pressure to the old highways.In response to this situation,the original highway must be reconstructed and extended.It is necessary to focus on the analysis and exploration of the methods of interchange reconstruction and extension in current highway reconstruction and extension to avoid affecting normal traffic,as it will inevitably have an impact on the traffic operation environment.For this situation,it is necessary to analyze and understand the format and characteristics of traffic organization of the interchange operation area in time and propose corresponding safeguard measures.

Safety risk management of underground engineering in China：Progress, challenges and strategies

Underground construction in China is featured by large scale, high speed, long construction period,complex operation and frustrating situations regarding project safety. Various accidents have been reported from time to time, resulting in serious social impact and huge economic loss. This paper presents the main progress in the safety risk management of underground engineering in China over the last decade, i.e.（1） establishment of laws and regulations for safety risk management of underground engineering,（2） implementation of the safety risk management plan,（3） establishment of decision support system for risk management and early-warning based on information technology, and（4） strengthening the study on safety risk management, prediction and prevention. Based on the analysis of the typical accidents in China in the last decade, the new challenges in the safety risk management for underground engineering are identified as follows：（1） control of unsafe human behaviors;（2） technological innovation in safety risk management; and（3） design of safety risk management regulations. Finally, the strategies for safety risk management of underground engineering in China are proposed in six aspects, i.e. the safety risk management system and policy, law, administration, economy, education and technology.

Research on Active Safety Methodologies for Intelligent Railway Systems

Safety is essential when building a strong transportation system.As a key development direction in the global railway system,the intelligent railway has safety at its core,making safety a top priority while pursuing the goals of efficiency,convenience,economy,and environmental friendliness.This paper describes the state of the art and proposes a system architecture for intelligent railway systems.It also focuses on the development of railway safety technology at home and abroad,and proposes the active safety method and technology system based on advanced theoretical methods such as the in-depth integration of cyber–physical systems(CPS),data-driven models,and intelligent computing.Finally,several typical applications are demonstrated to verify the advancement and feasibility of active safety technology in intelligent railway systems.

Application effect of safety hazard self-examination mode in nursing risk management in hepatobiliary surgery

Objective:To explore the application effect of safety hazard self-examination mode in nursing risk management in hepatobiliary surgery.Methods:Sixty patients underwent hepatobiliary surgery in two tertiary hospitals in Shandong Province from May 2021 to October 2021.According to the different implementation time,they were divided into 30 cases in the observation group and 30 cases in the control group.The control group adopts routine risk assessment,and the observation group adopts the self-examination mode of potential safety hazards on the basis of routine risk assessment to compare the incidence of nursing risk between the two groups.Results:The observation group had a significantly lower incidence of safety hazards in terms of missing surgical instruments,lack of aseptic operation,and postoperative pressure injuries than the control group(P<0.05).Conclusion:The appropriate hazard self-examination mode in the hepatobiliary operation room is of positive significance to improve the safety awareness of operating staff and the comprehensive ability of operating room nurses.

Statistical Safety Analysis of Maintenance Management Process of Excavator Units

Within this paper, the process of statistical safety analysis has been presented, which involves the following steps： formulation of basic principles of statistical safety analysis, initial events analysis, accident sceneries progress analysis, risk calculation, and risk calculation results analysis. On this basis, it has been concluded that the bucket wheel excavator SRs 1200×24/4×0（400 kW）＋VR safety criteria is the mechanism for the hoist of rotor＇s arrow failure modes, because in that case whole bucket wheel excavator failure would necessarily happen （excavator falling down on counterweight）. Therefore, excavator units statistical safety analysis is accomplished preventively to obtain its effective maintenance management.

Reliability Study on the Risk Precontrol Management System of Coal Mines Safety

Risk precontrol management system of coal mines safety( RPMSCS) provides a set of preventive safety management strategy for high-risk coal industries, which has captured extensive attentions. Fundamentally,there are several membership systems with subsystems in the management system, and the subsystem reliability has an important influence on the management system performance. Through analyzing the structure characteristics of the management system,the phase type distribution was employed to analyze its subsystem reliability by considering repair process and three states including working,fail-abnormal,and fail-emergency states. The reliability indices of the subsystem were derived respectively,including the probabilities that the subsystem in three states,mean time to the first failure, mean time to first failemergency,mean working time to first fail-emergency,and mean maintenance time to the first fail-emergency, are derived respectively. The probabilities of the membership systems and the management system in three states were also derived. Some numerical examples were used to show the procedures. The result is important for better understanding the management system operation and improving its operational performance from the respect of system reliability.

Healthcare Risk Management and Patient Safety in Turkish Hospital

Patient safety is an important component of risk management in hospitals. The aim of the study is to measure physician and nurse awareness about four selected patient safety indicators by authors and events reported about these relevant indicators in the hospital. The study uses standardized four patientsafety indicators like ＂needle sticks, cut wounds, dressing allergy, infections indicators＂. Cross section study was conducted through three month period in 2011-2012 based on voluntary response to the questionnaire that intend to measure knowledge about four health indicators. Studypopulations consisted of accessible sample of 146 different specialty physicians and 108 nurses present on duty during survey period. The association between the patient safety indicators and events reported about indicators in questionswere analyzed. Meanpatient safety knowledge questionnaire scores of health staff （nurse and physician） for needle sticks, cut wounds, dressing allergy, infections indicators were 47.13（11.8）, 39.04（14.5）, 38.02（10.5）, 39.72（9.7）, respectively. Significant statistical differences were also found between the frequency of events reported according to department and patient safety indicators （F = 8.34; p 〈 0.05） Measuring patient safety culture via safety indicators is essential in improving patient safety. This matter is perfectly influence the financial management of the hospital.

Operation safety risk analysis method of hydropower project considering time-dependent effect

In order to consider the time-dependent characteristic of risk factors of hydropower project,the method of stochastic process simulating structure resistance and load effect is adopted.On the basis of analyzing the structure characteristics and mode of operation,the operation safety risk rate assessment model of hydropower project is established on the comprehensive application of the improved analytic hierarchy process,the time-dependent reliability theory and the risk rate threshold.A scheme to demonstrate the time-dependent risk rate assessment method for an example of the earth-rock dam is particularly implemented by the proposed approach.The example shows that operation safety risk rate is closely related to both the service period and design standard;considering the effect of time-dependent,the risk rate increases with time and the intersection of them reflects the technical service life of structures.It could provide scientific basis for the operation safety and risk decision of the hydropower project by predicting the trend of risk rate via this model.

Safety and Risk Management of Cosmetic Products

The safety and risk management of cosmetic products runs through the entire life cycle of the product. The author focuses on the safety of cosmetic products, starting from the three stages of cosmetics research and development, production and sales, pointing out the key control points at each stage, aiming to provide a reference for cosmetics companies to develop products.

Research on Safety Risk Assessment Method for Large Scale Field Operation Project

By applying man-machine-environment system engineering theory, safety risks on large scale field operation project have been evaluated in this article. The factors concerning with the man, machine and environment in system were proposed separately. The value for lowest indexs was determined by decision-making of expert group. The weights were calculated based on AHP, and then safety risk assessment in different layers was made. The results show that the assessment method is reasonable, and it is significant for large scale field operation project safety managerment.

Q4 Safety在海洋石油安全管理中的应用

简要介绍了安全生产管理软件Q4 Safety在曹妃甸油田的应用背景;着重从危险辨识和风险评估、隔离的管理和控制、工作许可的管理和控制、测试单的管理和控制以及相关负责人五个方面,结合工作流程,对该软件在海上油田的应用情况进行了介绍和分析,并提出了建议。

Impact of Improving Design Factor over 0.72 on the Safety and Reliability of Gas Pipelines and Feasibility Justification

Many years experience of the operation of high stress (>72% specified minimum yield strength, SMYS) gas pipelines and statistical analysis results of pipeline incidents showed that the operating pipelines at stress levels over 72% SMYS have not presented problems in USA and Canada, and design factor does not control incidents or the safety of pipelines. Enhancing pipeline safety management level is most important for decreasing incident rate. The application history of higher design factors in the U.S and Canada was reviewed. And the effect of higher factors to the critical flaw size, puncture resistance, change of reliability with time, risk level and the arrest toughness requirements of pipeline were analyzed here. The comparison of pipeline failure rates and risk levels between two design factors (0.72 and 0.8) has shown that a change in design factor from 0.72 to 0.8 would bring little effect on failure rates and risk levels. On the basis of the analysis result, the application feasibility of design factor of 0.8 in China was discussed and the related suggestions were proposed. When an operator wishes to apply design factor 0.8 to gas pipeline, the following process is recommended: stress level of line pipe hydro test should be up to 100% SMYS, reliability and risk assessment at the design feasibility or conceptual stage should be conducted, Charpy impact energy should meet the need of pipeline crack arrest; and establish and execute risk based integrity management plan. The technology of pipeline steel metallurgy, line pipe fabrication and pipeline construction, and line pipe quality control level in China achieved tremendous progresses, and line pipe product standards and property indexes have come up to international advanced level. Furthermore, pipeline safety management has improved greatly in China. Consequently, the research for the feasibility of application of design factor of 0.8 in China has fundamental basis.

Organization：A new focus on mine safety improvement in a complex operational and business environment

The daily operations in the mining industry are still a significant source of risk with regard to occupational safety and health(OS & H). Various research studies and statistical data world-wide show that the number of serious injuries and fatalities still remains high despite substantial efforts the industry has put in recent years in decreasing those numbers. This paper argues that the next level of safety performance will have to consider a transition from coping solely with workplace dangers, to a more systemic model taking organizational risks in consideration. In this aspect, lessons learned from the nuclear industry may be useful, as organizational learning processes are believed to be more universal than the technologies in which they are used. With the notable exception of major accidents, organizational performance has not received all the attention it deserves. A key element for reaching the next level of performance is to include organizational factors in low level events analyses, and approach the management as a risk control system. These factors will then appear not only in the event analysis,but in supervision activities, audits, change management and the like. Many recent event analyses across various industries have shown that organizational factors play a key role in creating conditions for triggering major accidents(aviation, railway transportation, nuclear industry, oil exploitation, mining, etc.).In this paper, a perspective that may be used in supervisory activities, self-assessments and minor events investigations, is presented. When ingrained in an organizational culture, such perspective has the highest potential for continuous safety improvement.

Improving mine safety technology and training in the U.S.recommendations of the Mine Safety Technology and Training Commission

The key issues studied focused on underground coal mining and included (1) prevention of explosions in sealed areas,(2) better emergency preparedness and re- sponse,(3) improvement of miners' ability to escape,(4) better protection of miners before and after a fire or explosion,(5) improved provision of oxygen,and (6) development and implementation of more robust post-incident communication.The U.S.Congress passed the Mine Improvement and New Emergency Response Act of 2006,which mandated new laws to address the issues.Concurrent with investigations and congressional deliberations, the National Mining Association formed the independent Mine Safety Technology and Training Commission to study the state-of-the-art relative to technology and training that could address the vulnerabilities exposed by the mine disasters.As discussed,the report outlined persistent vulnerabilities linked with significant hazards in underground coal mines, and made recommendations to provide a path for addressing them.Overall the commis- sion report made 75 recommendations in the areas of risk-based design and management, communications technology,emergency response and mine rescue procedures,training for preparedness,and escape and protection strategies.In its deliberations,the commis- sion importantly noted that mine safety in the U.S.needs to follow a new paradigm for en- suring mine safety and developing a culture of prevention that supports safe production at the business core.In the commission's viewpoint,the bottom line in protecting coal miners is not only adopting a culture of prevention but also systematically pursuing mitigation of significant risks.

Attitude toward Safety among Staffs in the Iranian Maternity Care Units of Public Hospitals with High Maternal Death Rate, 2015-2016

Background: Although extensive Mother-friendly Hospital initiatives have been improved the quality of maternity care in Iran, recent national reports have been indicated that obstetrics errors are still common. The current study aimed to assess safety attitude in the maternity care units of public hospitals in a region with high rate of maternal death in Iran. Materials and Methods: Data was collected from 314 midwives, specialist and also managers working in all public hospitals in 2016. The Cronbach’s alpha coefficient was used to analyze psychometric features of the Safety Attitudes Questionnaire (SAQ). Results: 86.2% of the participants (n = 314) completed the questionnaire. Results showed that lower scores in teamwork, safety climate and also job satisfaction subcomponents. The working conditions and stress recognition had the highest negative scores. There was a significant relationship between the following subcomponents and work load: teamwork (r = ﹣0.416, P-value = 0.05), stress recognition (r = 0.40, P-value = 0.05) and also working conditions (r = 0.421;P-value = 0.02). The score of midwives was significantly lower than specialists regarding job satisfaction (P-value = 0.014), working conditions (P-value = 0.02) and also the overall safety attitude score (P-value = 0.001). About 63% of respondents reported no error during the last year. The mean of error reporting during the last year significantly increased among specialists compared to midwives (P-value = 0.001). Conclusion: Maternity care units in the region with high maternal death have been faced with many intangible barriers related to safety attitude such as poor teamwork climate, working condition and also poor stress recognition. It is now needed to promote supportive environment for midwives and also strengthening staff cohesion through guiding the strategic direction of current maternity risk management system in creating open and just culture, improving leadership behaviors among senior managers and also addressing poor staffing levels.

Hazard Identification and Risk Assessment-Based Water Safety Plan for Packaged Water Production Companies in Abeokuta, South West Nigeria

Provision of quality drinking water is paramount for sustaining good public health in urban residents. Packaged water produced and consumed across cities in Nigeria lacks integrity in protecting Health. Water safety plan based on hazard identification and risk assessment in each component of the water production system is essential in providing quality water by packaged water producing companies in Nigeria. This study aims at developing water safety plan for selected packaged water manufacturing companies in Abeokuta, Ogun State, Nigeria. Hazard identification and risk assessment were carried out based on site inspection studies, key informant interview, questionnaire survey and water sample analysis, and risk analysis using semi-quantitative risk matrix approach. The results revealed a total of 26 possible hazardous events which may compromise water quality such as on-site septic tanks and effluents discharged at source water and improper maintenance and hygiene practices within the system. Based on these, appropriate mitigation and monitoring plans were drawn for action. The research found that water safety plan is feasible for the packaged water systems, and therefore calls on the relevant stakeholders for urgent implementation towards ensuring clean drinking water and protecting public health as more and more people are opting for packaged waters due to uncertain public water safety.

Study on life-cycle risk management of high earth-rock dam project

Based on advanced computer technology, internet of things （lOT） technology, project management con- cept and professional technology and combined with the innovative theories, methods and techniques in earlier hy- dropower projects, the life-cycle risk management system of high earth-rock dam project for Nuozhadu project was developed. The system mainly includes digital dam, three-dimensional design, construction quality monito- ring, safety assessment and warning, etc, to integrally manage and analyze the dam design, constructional quality and safety monitoring information. It realized the dynamic updates of the comprehensive information and the safe- ty quality monitoring in the project life cycle, and provided the basic platform for the scientific management of the construction and operation safety of high earth-rock dam. Application in Nuozhadu earth-rock dam showed that construction safety monitoring and warning greatly helped accelerate the construction progress and improve project quality, and provided a new way for the quality safety control of high earth-rock dam.