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- The shape of outlet rearward should adopt the symmetrical spiral case. 同时还发现了流道中旋涡产生的位置，分析了产生这些现象的原因。
- The ellipse section spiral case can give excellent hydraulic performance by optimizing design. 通过优化设计,椭圆型蜗壳可获得优异的水力性能。
- There are lots of testacean aquatics attached to the underwater concrete surfaces of the spiral casing and draft tube in Shaxikou hydropower station. 沙溪口水电站水下蜗壳及尾水管混凝土表面附着较多的贝壳类水生物,水下混凝土侵蚀严重,影响水工建筑物的安全运行。
- This paper deals with a lump-sum flow analysis of a spiral case, stay ring and vaneless annular walls for a small Francis turbine by the latest CFD code. 本文对常用的小型混流式水轮机涡壳、座环和无导叶环壁面内流动状况用最新的CFD技术进行了整体数值解析。
- The concrete spiral case of the GHS is reinforced with the pre stressed anchorage cable, which is the first case in China. 高坝洲水电站混凝土蜗壳采用预应力锚索加固,这在国内尚属首例,其预应力锚索包括水平环向锚索和垂直竖向锚索。
- Due to the high water head of the GHS, the design unit put forward a suggestion of using the pre stressed reinforced concrete spiral case. 高坝洲水电站由于设计水头较高,设计单位建议采用预应力钢筋混凝土蜗壳。
- This article introduces the analysis with FEA program ANSYS of the stay ring and the spiral case in running condition by using e-lastic layer. 本文主要介绍三峡右岸电站机组蜗壳在垫层埋设方式下,座环、蜗壳在机组运行时的整体三维有限元结构刚强度计算分析。
- This paper summarizes soft development and technology of spreading of elliptical spiral casing based on approximate elliptical spiral casing(major and small circle casing). 主要介绍椭圆蜗壳按近似椭圆蜗壳(即大小圆蜗壳)展开的软件开发与制作工艺过程。
- This article describes the successful spiral case preassembly with a dummy stay ring for the manufacturing of the 550MW hydrogenerating units of Ertan Hydro Power Station. 二滩水电站550MW水轮发电机组在制造过程中,采用工艺座环预装涡壳,这在国内尚属首例。
- Concrete stresses in the axial direction of the spiral casing are relatively uniform dispersed tensile stresses, the maximum axial stress occurs in the thinnest section of surrounding concrete. 沿蜗壳轴线方向的应力为相对均匀的拉应力，最大拉应力出现在外围混凝土厚度最薄的部位。
- In the nonlinear computation of the spiral case structure of Three Gorge Power Station,damage mechanics is introduced to study the concrete cracks from microcosmic to macrocosmic scope. 采用编制的正交异性三维损伤有限元程序对蜗壳结构进行损伤计算,细致地分析了钢蜗壳不同内水压力时,其外围混凝土的损伤分布规律及应力应变情况。
- Abstract: The surrounding concrete of steel spiral case in the power station of Three Gorges Project(TGP) is constructed by means of keeping aspecific level of internal pressure during construction. 摘要： 防渗墙墙体槽段的连接部位是防渗墙防渗的薄弱环节，其连接质量是保证防渗墙整体防渗效果的关键，决定着防渗墙的成败。
- The concrete structure surrounding spiral case of the Three Gorges power station s powerhouse becomes one of the most complicated structures of the powerhouse for its queer geometric figuration. 三峡电站厂房蜗壳外围混凝土结构由于其几何形态的奇异而成为三峡电站厂房结构中最复杂的结构之一。
- In that case you'll have to clear yourself. 那样，你只得自行辩白了。
- In this case, let's start earlier. 既然这样，我们就早点开始。
- reinforced concrete spiral casing 钢筋混凝土蜗壳
- spiral casing direct laying method 蜗壳直接埋入法
- Military budget continue to spiral. 军费预算继续上升。
- The fist 300t hydraulic vertical shiplift in the world,concrete mixtures of quench iron scoria and limestone powder,large size combined bearing spiral cases and super unit discharg. 采用的300t级水力式升船机、水淬铁矿渣与石灰岩粉混凝土双掺料、大型直埋式联合承载蜗壳、特大单宽流量宽尾墩溢流表孔等是该电站的主要特点,可供其他工程借鉴和参考。
- Military budgets continued to spiral. 军事预算继续急遽增加。
