1) raw water pipe
既有原水管
1.
Combined with the shield con- struction technology,this paper established the shield construction FEM numerical model and simulated the influence on shield tunnel passing through existing raw water pipe.
本文以上海轨道交通7号线区间盾构隧道穿越既有原水管为工程背景,结合现场盾构施工工艺,应用有限元三维数值方法,模拟分析盾构机穿越既有原水管时周围土层的沉降变形和既有原水管的沉降变形特征,确定盾构推进对既有原水管的影响范围。
2) existing underground pipelines
既有地下管线
1.
It is generally to demount and remove the existing underground pipelines within the range of the engineering projects.
对工程范围内的既有地下管线,一般应拆改、迁移,但当地下管线为大直径自来水管、高压输变电电缆等,且与居民正常生活、生产关系密切而无法拆改时,必须考虑对其进行就地加固。
3) haven-built
既有
1.
Thinking about haven-built architectural engineering quality safety
既有建筑工程质量安全性的思考
4) existing railway
既有铁路
1.
The application of jacking construction technique in existing railway construction;
顶进施工技术在既有铁路施工中的应用
2.
Study on application of existing railways in urban transport;
既有铁路参与城市交通运营的研究
3.
Research on erecting beam construction technology of existing railway overhead overpass
既有铁路跨线立交桥架梁施工技术研究
5) existing railway line
既有线
1.
The application of cement injection pile in soft soil foundation reinforcement of existing railway line;
粉喷桩加固既有线旁软土地基技术
2.
Construction technology of trans-section continuously welded rail in speed-rising reconstruction of existing railway line;
铁路既有线提速改造跨区间无缝线路施工技术
3.
Design example of existing railway line framed structural bridge of large span
既有线大跨度框构桥设计实例
6) existing line
既有线
1.
On safety precaution of existing line construction;
浅谈既有线施工的安全措施
2.
Reinforce technique for existing line in hidden digging section of underground Dongdan station;
北京地铁东单站暗挖段过既有线加固技术
3.
Through the practical application of D beam in the culvert construction of railway existing line converted project,it introduces the main characters,construction method,the programs should attention and the emergency steps of D beam,and it is the benefited assurance of assure the safe operation of the railway.
通过达成铁路扩能既有线改造工程涵洞施工中D型梁的实际应用,介绍了D型梁的主要特点、施工方法、注意事项及应急措施,是确保铁路运营安全的有利保障。
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