钻孔处置简介

介绍了钻孔处置概念及3个国家的钻孔处置设施。对于废放射源和少量放射性废物,钻孔处置将是一个安全、经济和有效的最终处置方案。     

核设施砼底板开裂的重大不符合项处理及关闭

从核工程建造的质量保证及质量控制入手,介绍了某核设施建造过程中砼底板开裂的重大不符合项的发现、原因分析、纠正措施、处理结果和不符合项的关闭等过程.对该不符合项处理过程中获取的教训和工程经验进行了总结.     

连续重整再生器试运故障的排除

利用引进专利技术设计、制造、安装的连续重整装置的再生器具有内件复杂和安装精度高的特点，其安装检验和气密试验通过后，在催化剂流动循环试运行时出现了催化剂跑漏、压力降升高的故障。经过中外专家通力合作，在反应系统不停车的情况下，及时排除了故障，保证了催化重整装置一次试车投产成功。     

浅谈危险废物处理处置工程的规划及设计

根据笔者近10年来在危险废物处理领域的体会,在探讨了危险废物处理处置工程规划和设计应遵循的原则、处理处置工程一般应包括的工程设施的基础上,重点探讨了危险废物处理处置工程的物流体系、规划和设计的具体方案及其应注意的问题。     

Landslide and mudflow disaster in disposal site of surplus soil at Higashi-Hiroshima due to heavy rainfall in 2009

The collapse of a filling occurred due to heavy rain in Higashi-Hiroshima City׳s Shiwa District at about 5:30 am July 25th, 2009. The filling was made of surplus soils, and it contained a mass of water supplied from rainfall and ground water flow of a permeable layer at the bottom of the filling. The collapsed soil flowed down and destroyed a house. In this paper, the cause of this disaster is discussed. The site of the disaster was used as the dumping site of surplus soils, after several changes of ground formation. The history of the geographical change was reconstructed by the image processing of old map, aerial photographs, result of 3-dimentional laser survey carried out after collapse and the measurement of thickness of collapsed soil by dynamic cone penetration test. According to the result of processing, the shape and the size of the filling before collapse was reconstructed. The relationship between the rainfall and the groundwater in the river sediments layer over which the filling was constructed was determined. A stability analysis of the filling was conducted considering the rise of the groundwater level in the filling and the laboratory measured strength parameters. The results of the stability analysis showed that the collapse would have taken place when the groundwater level rose by about 9 m due to the supply of groundwater through the river sediments layer.     

Solid Film Deposition and Non-Sacrificial Boundary Lubrication

This paper reports the results of studying various approaches in non-sacrificial boundary lubrication in which the deposition of a beneficial surface layer is the result of a chemical reaction involving one or more components in the lubricating fluid but not the metal surface itself. This is in contrast to the conventional approach which involves the rubbing surfaces as reactants with the components in the lubricant and usually promotes wear as the result of chemical change of the surfaces. The most interesting findings show that a reaction between a molybdenum complex and a mixture of zinc dialkylphosphorodithioates produced in situ deposition of MoS₂ and some other unidentified crystalline material. Effective reductions in friction and wear were obtained. Electron diffraction patterns of the worn metal surface established the presence of MoS₂.     

中低放废物陆地浅埋处置类似物—古墓葬的研究

本文将我国古墓葬和中低放废物陆地浅埋处置在选址、工程结构、设计原理和施工方法等方面进行了类比分析。分析结果表明，我国古墓葬对中低放废物陆地浅埋处置是很好的类似物，古墓及其随葬品长期保存的完好性说明了选择适宜的场址、合理的工程结构和良好的回填材料及科学的施工方法后，中低放废物陆地浅埋处置是安全的。对我国２个墓葬回填材料的测试结果表明，古墓葬材料具有良好的抗渗性，其渗透系数为１．５×１０￣（－８）ｃｍ／ｓ，对Ｃｏ和Ｃｓ吸附能力很强，分配系数分别为１．２×１０￣４和２．１×１０￣４ｍＬ／ｇ，延迟系数分别为４．４×１０￣４和７．７×１０￣４；这些材料良好的性能保证了古墓寿命的长期性，可考虑作为中低放废物陆地浅埋处置工程中的回填材料。     

一起多传动变频器故障的处理过程

本文介绍一起ABB多传动变频器故障的处理过程。     

响洪甸铀尾矿处置场放射性污染与治理方案

安徽省金寨县响洪甸乡曾有一个集采、冶铀一体的小型厂，80年代退役时，就地掩埋了约49kt铀尾矿渣及部分废弃设备。随着时间的推移，这一“处置场”成了一个可能产生重大污染事故的隐患，造成不良的社会影响。为了根治这一隐患，必须采取彻底治理措施，为此将付出几百万元的代价。     

基于工程塑料件的加工研究

介绍了塑料制品的三种加工方法及工艺.时塑料零件的连接方法和表面处理工艺作了扼要说明;对塑料的主要特性.机械加工及工艺方法进行了阐述;对加工塑料制品时的冷却剂选用作了说明.