A diagnosis-based approach for tire-road forces and maximum friction estimation

A new approach to estimate vehicle tire forces and road maximum adherence is presented. Contrarily to most of the previous works on this subject, it is not an asymptotic observer-based estimation, but a combination of elementary diagnosis tools and new algebraic techniques for filtering and estimating derivatives of noisy signals. In a first step, instantaneous friction and lateral forces will be computed within this framework. Then, extended braking stiffness concept is exploited to detect which braking efforts allow to distinguish a road type from another. A weighted Dugoff model is used during these ‘distinguishable’ intervals to estimate the maximum friction coefficient. Very promising results have been obtained in noisy simulations and real experimentations for most of the driving situations.     

复杂富水矿山基建期防排水系统的优化

通过对白象山铁矿风井区平巷施工原排水系统的分析,从水泵房、变电所和防水闸门系统提出了优化措施,从而大大提高了复杂富水矿山基建期设防能力,保证了矿井建设的安全。     

弧焊变压器焊接时触电的原因分析及防范措施

阐述了使用弧焊变压器施焊时产生触电的原因,并提出了安全使用弧焊变压器焊接时的措施。希望焊接人员摒弃错误的观念及麻痹思想,高度重视安全用电,确保人身安全。     

煤矿低浓度瓦斯管道输送安全保障技术

随着加快矿井瓦斯抽采利用,低浓度瓦斯,特别是浓度在5%～16%爆燃极限内的瓦斯输送的安全隐患凸显。自动阻爆装置、水封阻火泄爆装置、自动抑爆装置等一系列技术装备为煤矿低浓度瓦斯管道输送安全提供了保障。     

Relationships between observed and perceived deviations from normative work procedures

Deviations from anticipated courses of events are often associated with accidents, while the effects of deviations that decrease productivity but do not obviously lead to human injury are less clear. A systemic approach to production and safety is introduced, and it is proposed that production deviations have effects that may lead to safety violations and personal injury. In addition, the relationship between observed and perceived production deviations from 12 senior (60–79 years old) males' routine work using three firewood processing machines is analysed. For simple machine work, perceived deviations were positively related to observed deviations per work cycle and inversely correlated to the perception of work efficiency. For more complex machine work it was more difficult to match observers' and operators' perceptions of deviations. Despite challenges in the production deviation concept, this approach offers a holistic understanding of the performance of human–machine-environment systems and complements assessments of deviations from safe working practice.     

前混和磨料水射流切割安全放顶研究

通过对前混合式磨料水射流切割的切割能力及在不同瓦斯条件下的切割安全性进行分析,认为利用前混合式磨料水射流切割技术可以解决目前坚硬及锚杆、锚索等支护顶板放顶难的问题。设计并建立了前混合式磨料水射流切割实验系统及实验方案,分析了切割能力的影响因素。     

“系统原理”在刘桥一矿瓦斯治理中的应用

根据"安全工程系统原理",结合刘桥一矿瓦斯地质实际情况,制定出切实可行的瓦斯综合治理方案,包括优化通风系统、对瓦斯进行超前管理、加大资金投入、强化职工教育培训及严格各项规章制度。     

煤矿安全立体化管理模式

针对煤矿生产环境的特殊性,在分析传统煤矿安全管理模式不足的基础上,从安全系统工程的角度,建设性地提出了我国煤矿安全管理的立体化模式,指出影响煤矿安全多要素之间的相互关系和作用,进一步探索了实施和运作煤矿立体化安全管理模式必备的条件,为开展煤矿安全管理的创新和实践诊断提供一个新的视角。     

安全监控信息集成系统建立方案的设计

针对淮北矿业集团瓦斯安全信息监控的实际需求,从硬件和软件的结构设计、工作原理及应用功能等方面,阐述了煤矿分布式安全监控信息集成系统的建立过程,为集团公司安全监管体系搭建了新型工作平台。     

深厚表土冻结法凿井井壁安全监测技术

重点介绍了深厚表土中冻结法凿井的井壁安全监测技术,利用现代计算机控制和远程通信技术,通过电话网和调制解调器,借助预埋的传感器,经过信息的分析和反演,实现了冻结法凿井中对井壁的远程全自动安全监测。