Responsible Management for Health, Safety and Environment (HSE) of Mining and Processing Projects in

来源 :第七届国际天然放射性物质研讨会 | 被引量 : 0次 | 上传用户:by090706
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  This paper & presentation describes how responsible management for health,safety and environment (HSE) is adequately addressed as part of modern practices for mining and processing projects involving naturally occurring radioactive materials (NORM),from environmental baseline studies to projects initial plans for design and operation,environmental impact assessments,improvements of planned design & operation; project licensing and supporting HSE programmes; commissioning and operation and related further improvements,One of the key issues is that vendors and operators of industrial plants understandably tend to focus their effort on the hardware,engineering,process & operations (in other words on issues inside the plants) whereas public expectations tend to be the highest for issues like radiation.waste,discharges,etc.in relation to the environment (in other words issues outside the plants),Moreover,industrial players tend to excel at the generic level in designs and operations whereas public expectations tend to focus on local adaptation (for each site separately).A main risk for NORM projects is either that an insufficient local adaptation may create repeat delays of approval (or repeat operational issues) or that a too pronounced local adaptation can result in significantly reduced operational margins which can in turn contribute to degrade the efficiency of operations.There is often a functional gap between generic designs and operations,and the necessary local adaptation of proj ects which is important to address as it can otherwise result in significant inefficiency in proj ect approval and operation.The above also has implications on the way projects are shared-up and promoted.In brief,the days are gone when such projects were designed upfront from cradle to grave,fixed,and then successfully pushed forward for easy approval through various permitting procedures including more or less public consultation and the coverage of HSE aspects.Nowadays,the way projects are shaped and promoted as part of permitting procedures can make a big difference.N01 paying sufficient attention to this can at times lead to administrative road blocks for both new and on-going projects.Of course,the core of an efficient industrial or mining project needs to be well shaped by the project owner before getting into permitting and related public consultation/review.However,it is emphasized that a key part is about seeking,gaining and maintaining a good level of public support all along the life span of a project (easier to say than do).And for this,it is useful to complement the core of the project with options that are evaluated (with related justifications) and that are subject to a public consultation/review process.Preferred choices are then accounted for the options that are ultimately retained.Such a way helps gaining a good level of public empowerment and support in projects.This article/presentation should be particularly relevant for countries which are looking at starting-up industrial projects involving natural occurring radioactive materials (NORM).Sometimes,such projects event need to go through more comprehensive project licensing procedures (than the usual) that are up to international safety and environmental standards.This also plays a key part in building the necessary public support in such projects.
其他文献
对下白石大跨度连续刚构桥进行了健康监测。基于健康监测数据,建立了该桥环境温度与模态频率的三元线性回归模型。通过验证表明该模型具有较好的拟合和预测精度,并建立了置信度为95%的预测区间,可对桥梁后续的模态频率数据进行预测评判;进一步地,提出了下白石连续刚构桥梁模态频率的温度修正模型,可以有效地剔除了环境温度对模态频率的影响,对连续刚构桥梁的安全性评估、损伤诊断、桥梁模型修正等具有参考价值。
环境激励下结构模态参数识别理论大多从传统模态参数识别理论发展而来,因此探讨环境激励下结构模态参数识别的统一理论十分必要。本文首先阐述了时间响应函数获取的两种方法自然激励技术( Natural Excitation Technique)和随机减量技术( Random Decrement Technique);然后提出了低阶时域模态参数识别方法的统一理论,包括Ibrahim Time Domain(I
环境激励下结构模态参数识别理论大多从传统模态参数识别理论发展而来,因此探讨环境激励下结构模态参数识别的统一理论十分必要。本文首先阐述了基于输出响应数据的频域识别理论模型‘正’功率谱表达式;然后将高阶频域模态参数识别方法扩展到环境激励下结构模态参数识别应用中,提出了高阶频域模态参数识别方法的统一理论,包括有理分式多项式拟合法( RFP)、有理分式正交多项式拟合法(RFOP)、最小二乘复频域法(LSC
在作者已提出的双曲函数摄动方法的基础上,推广双曲函数Lindstedt-Poincaré (L-P)法的适用范围,使之适用于定量分析含五次强非线性项的自激振子的同宿分岔和同宿解问题。在L-P方法基础上,不同于传统周期函数方法,以双曲函数系为基础推导出适用于高次非线性系统的摄动步骤,对极限环的同宿分岔参数进行摄动展开,给出同宿摄动解奇异项的定义,以消除同宿摄动解奇异项作为确定极限环同宿分岔点的条件,
为了满足快速且准确的大跨度桥梁安全性能评估需要,提出了一种利用健康监测系统的动力监测数据评价预应力混凝土大跨度连续刚构桥的长期安全性能的方法。介绍了一座大跨度连续刚构桥健康监测系统动力测试的基本情况,并比较了环境振动测试和健康监测系统动力测试的结果。进一步利用连续刚构桥的自振频率温度修正模型,采用考虑温度效应的实测动力特性对连续刚构桥有限元模型进行修正得到反映实际状态的基准有限元模型,并进行汽车荷
X-PLY型超强瓦楞纸板是一种新型缓冲包装材料,具有质量轻、比强度和比刚度大等优点,目前多做成缓冲垫(件)应用于物流运输包装领域中对内产品进行缓冲或防振保护。但实际物流过程中的外部振动激励常常会造成包装件发生共振从而导致包装件最终破损,因此了解包装件的固有频率和振型,可避免包装件在物流运输过程中因共振因素造成不必要的损失。本文采用ANSYS仿真软件中的分块Lanczos模态分析方法对三种不同静应力
通过选择极限风况函数、模拟流场及考虑空气湍流作用,建立叶轮流场动态模型。对流场动态模型进行模态分析和风压力计算,获得叶轮的瞬态风压力及其频率响应特性。对流体环境下的整机组固有频率与无流体环境下的结果进行比较,提取出叶轮流体环境下的重要频率特性。通过选取叶片振型节点的加速度频域响应特性,分析出叶轮各叶片同一点具有相同的频率特性、不同的幅值特性;叶轮各叶片不同点具有不同的频率和幅值特性;以及从这些特性
基于刚性模型的高频天平测力风洞试验,对一实际外附网架的超高层建筑的基底弯矩和扭矩特性进行了分析,详细讨论了复杂周边建筑环境和外附网架对近似椭圆形截面目标建筑的整体气动力特性的影响。研究结果表明,复杂周边建筑对目标建筑的气动力均值的影响主要表现为遮挡效应,但在一定条件下可能放大目标建筑所受到的脉动气动力;外附网架导致目标建筑气动力均值随风向角的变化更剧烈,但气动扭矩均值随风向角的变化变得平缓;建筑两
本文通过ANSYS/APDL-FEMAP-PATRAN-NASTRAN多个有限元分析软件,充分发挥每个软件的建模与分析优势:ANSYS/APDL具有参数化建模功能;FEMAP把ANSYS模型转换为NASTRAN模型;PATRAN导入模型并把卫星模型与火箭模型组装在一起,具有模型管理功能;NASTRAN具有很好的结构动力学分析功能。通过联合多个软件建立丁全箭三维参数化有限元模型。模型由程序自动生成,
钢丝绳减振器由于钢丝间存在着干摩擦作用,具有明显的非线性迟滞阻尼特性。现有文献给出的钢丝绳减振器迟滞模型的参数识别大都是基于初始零变形情况下给出的参数,而实际上,在隔振系统中减振器是在承载作用下起隔振作用,此时已有一定的初始变形。由于钢丝绳减振器具有强非线性,相对于不同初始变形的迟滞曲线中的参数是不同的。本文基于钢丝绳减振器额定荷载下的实验迟滞曲线,考虑高阶刚度和可能出现的多种阻尼成分,提出一种非