帮帮忙隧道英语Thetunnelspassthroughextremelyvariablegeologicalformations,andavarietyofcut-and-coverandminingmethodswillbeusedintheirconstruction.Longitudinalventilationisprovidedby12ventilationbuildingsand9rampv

Question

帮帮忙隧道英语
The tunnels pass through extremely variable geological formations ,and a variety of cut-and-cover and mining methods will be used in their construction.Longitudinal ventilation is provided by 12 ventilation buildings and 9 ramp ventilation structures.
Construction of the bored tunnels some 13 m to 14 m in diameter will mark another milestone in Singapore's tunnelling technology.
4.3 Deep Tunnel Sewerage System
The overall concept is to construct cross-island deep tunnels to intercept the flows in existing gravity sewers,upstream of the pumping stations,and channel the flows by gravity to two new centralised sewage treatment works to be strategically located at the south-eastern and south- western coastal areas All the treated effluent will be discharged through deep sea outfall pipelines into the Straits of Singapore
With the deep tunnel system,the sewer reticulation system in Singapore will,in future,consist of only gravity sewers linked to deep tunnels.All the existing sewage pumping stations will be phased out eventually.The six existing treatment works will also be phased out in the long term when all the flows are diverted in stages to the two new coastal treatment works.The two new plants will be extended in phases to replace the treatment facilities at the existing works
The deep tunnel system (Fig.7) will comprise the following four components
*Two cross-island large deep tunnel sewers,5 m to 6 m internal diameter (Table 3);
*Two centralised sewage treatment works which will eventually replace the existing treatment works
* Deep sea effluent pipelines into the Straits of Singapore; and
* Link sewer network.
* Phase 1,comprising the construction of the north and eastern tunnels,is now being tendered (Fig.8).Completion of the tunnels is scheduled for 2005 and the initial Changi East Treatment Plant in 2007.Phase 2,the South Tunnel and additional link sewers and initial Jurong Island Treatment Plant are programmed for completion in 2015.
从4.3 Deep Tunnel Sewerage System 开始翻就可以了

Answer 1

隧道通过极其易变地质构造,和多种减少并且盖住和采矿方法将在他们建设内使用.长度通风由12座通风大楼和9座斜坡梯通风建筑物提供.厌烦的隧道的建设大约13米到直径14米将在新加坡挖隧道的技术方面标明另一个里程碑.总的概念是对结构的4.3 深的隧道开沟工程体制在现有的重力下水道里拦截流动的穿过岛的深的隧道,水泵站上游,并且信道流动以重力对新集中污水处理工作策略上位于东南和西南沿海领域全部治疗渗漏的两 将被通过深的海洋排泄口卸 进有深的隧道系统的新加坡的海峡的管道,在新加坡的下水道reticulation系统将,今后,只由与深的隧道有关系的重力下水道组成.全部现有的污水泵站最终将被逐步淘汰.