1) water pipeline
输水管
1.
This paper, through analyzing and comparing the common water pipeline material in terms of basic property, economic efficiency and practical effect, draws a conclusion that nodular cast iron is an ideal water pipeline material.
从基本性能、经济效益和实用效果等方面对几种常见输水管管材进行了分析、比较,指出球墨铸铁是目前比较理想的输水管管材。
2) water pipeline
输水管道
1.
On project practice for direct weighting in long-distance water pipeline
长距离输水管道直接加压的工程实践
2.
With comparison of properties and advantages and disadvantages of different inside and outside anti-corrosion methods and materials, the selection of anti-corrosion of buried steel water pipeline are discussed.
本文通过目前比较常见的几种内外防腐方式及材料的性能和优缺点 ,对埋地钢质输水管道的防腐选择提供了参考意
3.
This paper makes systematic analysis on the geneses and harmfulness of pipe scale in urban water pipeline,and advances some measures for preventing the scale in urban water pipeline.
系统地分析了城市输水管道中管垢的成因和危害,并提出了城市输水管道中管垢的防治措施。
3) service/pipe
输水/管道
4) water transmission pipe
输水管道
1.
The analytical calculation of crack accident of water transmission pipe from Fengjiashan Reservoir was performed in terms of the design check,water-hammer control analysis,construction,supervision,pipe material quality and so on.
此外,介绍了输水管道爆管事故的防治对策,以期为防止爆管事故的发生,以及加强供水管道安全运行起到一定的借鉴。
5) water conveyance pipeline
输水管道
1.
It is believed that the longdistance water conveyance pipeline is suitable for using 19Mn steel with higher strength, and fewer boosing stages and higher pressure should be adopted for water conveyance.
通过正蓝电厂工程实例对长距离输水升压方案进行了经济比较,认为长距离输水管道宜采用强度较高的16Mn钢,并应采用少的升压级数和较高的输水压力。
补充资料:钢筋混凝土循环水管施工
钢筋混凝土循环水管施工
reinforced concrete circulating water pipe construction
gongjln hunn一ngtu xunhuanshu一guan sh一gong钢筋混凝i循环水管施工(reinforced con-erete eireulating water pipe eonstruetion)有现浇和预制两种施工方法。现浇管在挖沟完后,在沟内分段浇筑。预制预应力管在工厂制作,再运到现场敷设。预制管工厂的设备比较简单,如工程地点离工厂较远而该种管子数t多时可将设备搬到现场制造。管子的直径可达3m甚至更大,长度一般为4m。 预制预应力钢筋棍凝土管预制,可用一阶段(展动挤压)工艺或三阶段(管芯绕丝)工艺施工。一阶段工艺系用申立式成型,用加工精密的内外钢套模组合定型,将主钢筋张拉完成后,即浇筑混凝土一次成型,经静定时间后蒸汽养护.三阶段工艺系按上法先浇制混凝土管芯,成型后再在管芯上缠绕预应力钢丝,用机械或电热法张拉,然后再喷盖水泥砂浆保护层,以防钢丝生锈,经水压试验合格后出厂使用。 数设带承插口的钢筋混凝土预制管挖沟徽设.平口对接的钥筋混凝土预制管除挖沟徽设外,还可采用顶管施工(见取水构筑物施工)。挖沟后按设计规定在沟底铺一层黄沙或石子,再用起重机械将预制管逐节吊人沟内、找正位!,在插口上套上橡胶密封圈后,往前一节的承口方向水平加力拉紧,使插口和橡胶圈同时均匀地嵌人承插口内,按此步探依次进行下一节管的安装.橡胶圈本身的直径略大于承插口间尺寸,并有规定的压缩比及防老化剂。在承擂口内侧采用钢衬圈和密封环进行环向水压试验.水压试验的标准按设计和规范要求。安装后进行回坟土,要求在两侧均匀回填分层夯实。 预应力钢筋混凝土管自重较大,在软土地区使用时要做混凝土基础。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条