人字形跨河桁架在输水工程中的应用

本文通过介绍单跨人字形桁架在输水工程中的设计应用，打破了传统输水管道在过河时将输水管道直接架于钢桁架上，钢桁架仅用作输水管道的支撑体而输水管道自身不参加受力的传统设计理念，单跨人字形桁架很好地解决了输水管道跨越河沟问题，为今后输水管道跨河的设计提供了较好的经验。     

In Fair Weather Prepare for Foul ---In-service integrity inspection of oil／gas pipeline

Pipeline transportation is one of the major ways for the oil/gas transmission. To ensure the safety of oil/gas transmission pipeline is very important because of its primary role in national economic development and people' s life quality improvement. In China, 20 000km of oil/gas pipelines are at work and 10 000km pipelines are being or will be constructed. Some of the in-service pipelines have already been used for several decades, and there would be many defects, corrosions as well as     

高层建筑管道直饮水工程实践

介绍了反渗透(RO)工艺在高层建筑管道直饮水工程中的应用实践,探讨了有关的工艺过程、工艺参数和设备选型。采用恒压变频、分区减压阀双循环供水方式和臭氧、紫外线双重消毒,确保供水稳定、及时、安全。运行和测试结果表明:出水电导率≤10μs/cm,达到国家直饮净水水质标准,整套系统能全自动运行,并实现远程控制管理。     

中哈石油管道正式开始对我国输油

2006年5月25日，中国-哈萨克斯坦石油管道正式开始对我国输油。北京时间当日凌晨3时10分左右，来自哈方阿塔苏站的原油抵达我国新疆阿拉山口计量站。这历史性地标志着我国首次实现了以管道方式从境外进口原油。据报道，通过中哈石油管道向我国输送的原油中，50％来自哈萨克斯坦的扎纳诺尔油田和阿克纠宾油田，50％来自里海地区的俄罗斯油田。     

海底管道工程管材拉运技术

在海底管道的施工前管道拉运工作安全高效地完成十分重要。本文以册子岛-镇海海底管道工程管材拉运为例对管材拉运技术作以研究。为解决和保障上海与南京地区石化企业的进口原油接卸与运输问题，中国石化集团公司利用宁波和舟山地区的深水港优势，配套建设了宁波-上海南京进口原油管网（甬沪宁管道），将岙山中转油库、册子岛拟建中转油库及镇海中转油库与甬沪宁原油管道连接。     

排水管线渗漏原因及改进措施的探讨

城市排水管线渗漏严重，分析其原因探讨改进措施。     

Dynamical Mechanisms of Effects of Landslides on Long Distance Oil and Gas Pipelines

According to the investigations on the oil and gas pipelines such as the Lan-Cheng-Chong pipeline and the Southwest pipeline, there are two ways of laying pipeline： pipelines paralleling （approximately） to the main slide direction and pipelines perpendicular （approximately） to the main slide direction. If earth-retaining walls have been built for pipelines paralleling to the main slide direction, they will prevent the lands from sliding; On the contrary, without earth-retaining walls, the sharp broken rocks in the backfilling soil will scratch the safeguard of the pipeline when the landslides take place. Pipelines perpendicular to the main slide direction can be classified into four types according to the relative positions between pipelines and landslides： Pipelines over the slide planes, pipelines inside the fracture strips of slide planes, pipelines below the slide planes and pipelines behind the backsides of landslides. The different dynamical mechanisms of the process in which landslide acts against pipelines are analyzed based on whether the pipelines are equipped with fixed frusta, because the sliding resistance depends on whether and how many fixed frusta are equipped and the distance between frusta.