湿法脱硫FRP喷淋管设计方法探讨

根据喷淋管布置支撑条件及FRP管道设计相关标准规范对喷淋管道设计方法进行了讨论,对FRP喷淋管的设计提出了采用有限元分析的方法。设计中对安全系数的选取进行了说明,确定了FRP喷淋管的设计强度和刚度条件的量化指标。     

J型坡口管道施工

本文对J型坡口管道安装施工特点进行分析,详述了坡口形成、收缩量测量及安装中注意的问题。J型坡口管道相对普通V型坡口管道施工难度增加,本文提供了厚壁管安装借鉴和遵循的经验和方法。     

FRP管在城市供水工程中的应用

树脂复合材料管道[以下简称(FRP)复合管],是目前在国际市场上产量最大、用途最广的产品。在美国、日本、德国、法国、意大利及其他工业国家,FRP管进入大规模生产和使用阶段。新铺自来水管中FRP管美国占30％、台湾省占70％,中东占100％。FRP管在我国用作输水管道,规模较大的有深圳至香港供水工程。在香港一侧用了2条直径分别为2.2m和1.7m长50km由英国购进的FRP管,从     

焦化工程工艺管道安装方法

对焦化工程中管道安装顺序、安装前准备工作、管道组对、管道焊接进行了论述，提出了大口径管道、集气管、桥管、上升管的安装方法，达到了质量有保证，施工程序科学的好效果。     

给水管道引接分支管施工技术

针对城市给水管道必须在原有输水管道上安装分支管道的要求,讨论了球墨铸铁管、钢管、混凝土管上引接分支管的施工方法。     

大管径玻璃纤维增强塑料夹砂管道水压试验方案

玻璃纤维增强塑料夹砂管道是近年来给排水工程的新兴材料，具有施工便捷、安装方便等特点，管道安装结束后，根据玻璃纤维增强塑料夹砂管特性及施工特点制定了水压试验方案。     

室内埋地采暖聚丁烯(PB)管道的敷设方法

为了方便施工、合理安排楼地面与管道安装工序的穿插,在工程中采用聚丁烯(PB)管做采暖管道入户部分的埋地管施工方法,并采用了一次成型的施工工艺,在特定的安装条件下采用了一定的安装技巧,其安装流程是先敷设管道后浇筑混凝土,实践表明:该方法缩短了预留沟槽占用的时间,减少了人员投入,提高了施工效率,节约了施工成本.     

浅谈给水过江管道工程施工

主要介绍水下管道施工中的拼接防腐、管槽开挖和管道沉管安装施工的几种方法,并分析这几种施工方法的优缺点以及管道冲洗消毒和竣工验收.     

刨花板项目管道工程安装施工技术

<正>由福建省工业设备安装有限公司承揽施工的湖北某地年产22万立方定向刨花板生产线安装工程,是亚州目前第一条定向生产线。大部份设备从国外引进,我司承包了生产线设备、工艺管道、电器装置安装及非标设备的制作安装工程等项目施工任务。工程管道安装工作要在短短的5个月的时间里需要完成管道支架的制作安装、管道预制安装、冲洗吹扫试压及中间交接等工作。施工期间克服了图纸延期交付、土建交安延期、材料供应滞后、边设计边安装等不利条件。现将工艺管     

HDPE管在城市道路排水工程中的应用探讨

本文结合工程实例,从沟槽开挖、管道安装、检查井砌筑、管道试压、管道回填等方面,阐述了HDPE管在城市道路排水工程施工技术及质量控制要点,供同行参考。     

浅析高速公路工程招投标中的最低评标价法

结合目前高速公路施工项目招投标活动的实际情况,阐述了最低评标价法的概念,归纳了其优点及存在问题,对完善最低评标价法提出几点策略,以期促进招标投标市场更加规范有序。     

Place-Making in Megaprojects in Melbourne

This article analyses state-led place-making practices in Melbourne. The two levels of government that influence planning in Melbourne make much of the city as ‘culturally vibrant’ and ‘creative’, and have incorporated creative city-inspired place-making principles into many layers of the planning system. An examination of the development of two mixed-use megaprojects in central Melbourne reveals however that ideals of culturally engaging public places, and indeed of creative landscapes for middle-class consumption, wither in the face of more basic imperatives for economic development. In these case studies the ‘creative city’, no matter how the idea is interpreted, has little traction either as a set of inclusive place-making principles or as a gentrification strategy. The article concludes that the creative city-inspired place-making objectives in the planning system at both state and local levels are ambiguous in their overall intents and completely unsupported by statutory controls. Such place-making objectives as are realised are the compromised results of the interplay of uncoordinated decisions, delivered at the pleasure of the developer.     

Pathogens in septage in Vietnam

Septage is widely acknowledged as a major source of infectious pathogens while disposal of septage, and the operation and maintenance of septic tanks, is not regulated in many developing countries. Twenty untreated septage and septage sludge samples were taken from Can Tho City, Vietnam to examine their pathogen content, and indicator micro-organisms. Escherichia coli and Enterococcus spp. were detected in all samples, regardless of sludge storage time. Phages were detected in 80% of samples. Salmonella spp. were detected in 70% of the untreated septage and 60% of septage sludge samples. Concentrations of phages and bacteria tested in septage sludge after many years of tank storage were much higher than the expected levels. Helminth ova were present in 95% of untreated septage samples with an average of 450 ova l^− 1, and were detected in all septage sludge samples with an average of 16,000 ova l^− 1. Twelve varieties of helminth ova were identified. More helminth ova varieties in higher concentrations were found in septage than those reported from stool samples. The varieties' frequency ranged from 10% to 50% and Ascaris lumbricoides predominated. Results show that pathogens and indicator micro-organisms, especially helminth ova, accumulate in sludge. Thus helminth ova should be considered when septage sludge is treated and used for agriculture. Proper health protection measures must be applied for people handling septage.     

在市场中实践在实践中学习在学习中进步--工程公司市场化进程的回顾与展望

近两年来，工程公司在提高市场竞争意识、推动市场化进程中做了大量工作，其中坚持走出去的方针是我们自我加压、推行加快市场化步伐的一个重要战略步骤。     

新时期广东城市化的新特点

新时期广东城市化出现以下特点:知识源导向、城市由单体向群体化发展、产业集群推动、政府主导自上而下的集约化发展、城镇化向城市化转变、由重“数量”发展向重“质量”发展的转变。     

新形势下高校强化基建财务管理的探讨

在市场条件下高校基建财务人员在加强日常财务管理的同时,必须树立起高度的工作责任心,抓好事前监督、事中监督、事后监督三个环节,全面理解、贯彻执行《高等学校财务制度》,管好用好各项基本建设资金,提高基建财务管理水平,更好地完成高校各项基建任务,以有限的投资,最快的建设速度,获得最大的投资效益。     

2005年北京办公物业市场七大趋势

趋势一:CBD区域写字楼集中放量从各区域规划方案上看,CBD区域多数项目在03～04年处于项目的报批手续及拆阶段,预计2005年正式推向市场,因此2005年CBD区域将成为北京市场供应集中的域,区域即将供应的项目有北京财富中心(二期)、金地国际花园、万达广场、SOHO尚都、万通中心、世纪财富中心、怡禾国际中心、光华国际等。除去未知项目,2005CBD写字楼办公面积的供应量为60万平方米左右。中关村区域经过一段时间的集中供后开始逐步放缓,2005年供应的体量相对较大的项目有中关村金融中心、新中关。金街区域可能开盘的项目只有2个:英蓝国际中…     

浅谈我国工程项目建设成本控制存在的问题

结合目前我国施工企业工程项目成本管理现状,对工程项目成本管理过程中存在的问题进行了较详细的分析,并提出了一些解决问题的办法,以做好项目成本控制工作,进而增强企业经济实力。     

Variation in property taxation in Tulsa

Conclusions It may be reasonably concluded from this study that the range of variation in these ratios of assessed to actual value are of a reasonable size for the great majority of cases. The frequency distribution of these sample ratios was not normal, however, as was assumed a process of this type would produce. On the other hand, the failure of the regression analysis to identify any significant variables which would explain these variations would tend to re-enforce the assumption that the fluctuations were indeed of a random nature.To sum it up in one paragraph, aside from a few extreme cases, the assessing process appears to give estimates which are more consistent than would be expected under the assumption that any errors would be of a random nature, but the regression analysis was unable to isolate any particular socioeconomic characteristics which would explain the variation which was present.Financial support for this research project was furnished by the University of Tulsa.