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广西河百高速在施工过程中部分开挖路段需进行爆破开挖,周边有居民房,为确保施工安全,需控制爆破冲击波、爆破振动和爆破飞石等对人员和构筑物的不利影响。采用安全系统工程中事故树分析方法对危险因素展开了系统分析,分别建立了爆破冲击波、爆破振动和爆破飞石事故树,综合分析得到事故树最小割集、事故树最小径集和事故树结构重要度,指出各个因素主次。结果表明:综合爆破冲击波、爆破振动和爆破飞石的事故树分析,在爆破施工过程中要加大施工现场监管、施工设计、减振措施和爆破警戒范围内飞石控制措施等的管理力度。 相似文献
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某公司在土石方爆破中发生重大事故.经对该事故进行分析认为,拟爆岩体地质结构比较特殊,爆破施工设计不合理等是导致爆破飞石产生的主要原因,而安全管理措施未落实则加大了事故的损失程度.得出几点启示供爆破工程人员参考,以避免类似事故的发生. 相似文献
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为帮助海岛爆破工程科学系统化的作业,运用事故树分析法对海岛爆破飞石事故的产生原因进行了分析,建立了爆破飞石事故树图,求出最小割集13个,最小径集8个,得到了基本事件的重要结构度值。结果表明:爆破方案审核不严、现场管理不当等问题是造成海岛爆破飞石事故的主要原因,针对这些基本事件提出了4点预防爆破飞石事故的对策措施,为今后的海岛工程爆破系统作业提供了决策支持。 相似文献
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The aim of our work was to study the accidents and close call situations connected to the use of mobile phones. We have analyzed how the accidents/close call situations are connected to background information, in particular age, gender and self-reported symptoms. The study was carried out as a cross-sectional study by posting the questionnaire to 15,000 working-age Finns. The responses (6121) were analyzed using the logistic regression models. Altogether 13.7% of respondents had close call situations and 2.4% had accidents at leisure, in which the mobile phone had a partial effect, and at work the amounts were 4.5% and 0.4% respectively, during the last 12 months. Essentially, we found that: (1) men tend to have more close calls and accidents while on a mobile phone, (2) younger people tend to have more accidents and close calls while on a mobile phone, but it does not appear to be large enough to warrant intervention, (3) employed people tend to have more problems with mobile phone usage and accidents/close calls, and (4) there was a slight increase in mobile-phone-related accidents/close calls if the respondent also reported sleep disturbances and minor aches and pains. In the future, it is important to take into account and study how symptoms can increase the risk of accidents or close call situations in which a mobile phone has a partial effect. 相似文献
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应急响应和产品召回对防制食品安全事故发挥着巨大的作用。文中分析了食品企业中存在的可能影响食品安全的因素,并重点阐述了应急响应及产品召回的流程,从而为更好地防止食品安全事故产生提供有效的参考。 相似文献
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af Wåhlberg AE 《Accident; analysis and prevention》2004,36(1):63-71
A number of accident characteristics of bus crashes are analyzed in relation to each other using data from 2237 accident involvements in the city of Uppsala (Sweden) during the years 1986-2000. The breakdown of accidents into sub-categories show, for example, that injury was common in intersection accidents, that bus stops present large risk for shunts and side contacts, while single vehicle accidents were seldom preceded by the loss of control or a skid. The treatment of accident data is discussed in terms of methodology, statistics and data reduction strategies. 相似文献