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anti-scour
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  防冲
     Application of New Materials for Anti-scour Devices of Wharf and Its Development Prospect
     码头防冲设备新材料的应用及其发展前景
短句来源
     Include parameters and accordings of the reinforce design, treatments of sluicechamber abutmentpier wingwall stillingbasin riprap anti-scour trench etcs , the outline and parameters of new sluice, Hydrolic calculation , structural and stable calculation, design of foundation.
     包括加固设计依据和设计参数,方案比选中的闸室、岸墙、上下游翼墙的加固,上游铺盖和防冲段、下游消力池、海漫和防冲槽、闸室上下游连接段岸坡护砌及止水排水设施的处理,加固后的工程布置及加固砼技术参数,工程设计中的水力计算、防冲防渗设计及措施,结构内力和稳定计算以及地基基础设计。
短句来源
     Study on Anti-scour Engineering Measure and Cover Depth Problem for Oil Pipeline Across River
     穿河油气管道防冲工程措施及埋深问题研究
短句来源
     A new inter-locking blocks mat anti-scour system for slope protection
     新型连锁块护坡防冲系统
短句来源
     One of the main hydraulic parameters considered in downstream anti-scour design of surface energy dissipationworks is the probablly occurrent maximum instantaneous value of turbulent flow velocity near bottomat energy dissipation section and its corresponding position, but the research works are very few now at homeand abroad.
     面流消能工程的下游防冲设计中考虑的主要水力参数之一是,消能段近底流速紊动可能出现的最大瞬时值及其相应的部位,但目前国内外研究成果较少。
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  抗冲刷
     (3) The construction instance in Mazhuang is discussed, and the water-diverting and anti-scour ability of the dam is also studied.
     (3)对马庄潜坝的长管袋沉排的运行情况及坝体的导溜能力和抗冲刷效果等方面进行研究。
短句来源
     The results indicate that HAWP hydrophobic group tends to bringing about intermolecular association and dynamic and physical cross-linked network, its solution shows a great capability of mobility control, decreasing porous media permeability and anti-scour in distant porous media compared with PHPA.
     研究结果表明,由于HAWP分子疏水基团发生分子间缔合作用,形成动态物理交联网络,HAWP溶液表现出很强的流度控制能力; 在远离注入端的多孔介质中,HAWP溶液比ASG溶液具有更高的抗冲刷性和降低孔隙介质渗透率的能力。
短句来源
     Slurry is one of the main concrete pavement damages in our country,some countermeasures and thoughts which preventing slurry damages are put forward from the aspects of strengthening water process,anti-scour ability and weaken the load stress,these methods are worth being researched further and extended.
     唧泥是我国水泥混凝土路面的主要病害之一,从加强对水的处治、基层的抗冲刷能力和减弱行车荷载的应力等方面提出了防治水泥混凝土路面唧泥的对策与思路,这种做法值得进一步研究与推广使用。
短句来源
  “anti-scour”译为未确定词的双语例句
     The relationship between the average value of soil anti-scour index and slop gradient from 40°5′ to 23°43′in agriculture land is power function.
     对于农地,其抗冲性指标与地表坡度在4°05′~23°43′之间呈幂函数递增关系。
短句来源
     The dissipator hydraulic calculation of anti-scour sills is to solve the problems of stilling pond lenghth and sill height.
     消力槛式消能工的水力计算主要解决池长和槛高问题。
短句来源
     On the basis of the test study,skeleton-pore cement stabilized aggregate were designed and the samples using 6%,8%,10%cement were prepared through vibrating equipment in the lab,then several performances were tested,including unconfined compressive strength,split strength,flexural strength,compressive resilience modulus,flexural resilience modulus,thermal contraction performance,dry shrinkage performance and anti-scour performance.
     据此设计了骨架孔隙水泥稳定碎石混合料,并利用振动法成型了水泥含量分别为6%、8%、10%的试件进行相应性能测试,试验中还与水泥含量为6%的悬浮密实结构水泥稳定碎石进行了对比。
短句来源
     Simplified calculation method ofsubmerged overflow anti-scour sill height
     淹没溢流消力槛槛高的简化计算法
短句来源
     Except bamboo forest soil,anti-scour(resistance) coefficients of other forest are more than that of farmland(1.2[CD*2]1.9?times),and the anti-scour(resistance)(coefficients) has a closest relation with the thickness of soil layer.
     除楠竹林外,各林分林地土壤抗冲系数大于农地(1.2~1.9倍)。 林地土壤抗冲系数与土层厚度关系最密切。
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In accord with years' model test results, a basic equation with respect to the anti-scour stability of blocks is established, namely:The equation is useful to calculating the stability of dumped blocks in river closure and of stones for bed protection.It is pointed out that a river closure process based on different hydraulic characters may be divided into three stages distinguished as “no difficult” , “difficult” , and “closing” . Such dividing should be helpful in executing a closure.Besides, a practical...

In accord with years' model test results, a basic equation with respect to the anti-scour stability of blocks is established, namely:The equation is useful to calculating the stability of dumped blocks in river closure and of stones for bed protection.It is pointed out that a river closure process based on different hydraulic characters may be divided into three stages distinguished as “no difficult” , “difficult” , and “closing” . Such dividing should be helpful in executing a closure.Besides, a practical method for predicting the velocity and discharge in closure gap is given so as to simplify the design procedure related.

通过多年的试验研究,得出块体抗冲稳定的基本关系式 V=(H/D)~α·[A+B(Δ/D)~(1/2)]·(2g(γ'/γ-1)D)~(1/2),可用它来计算截流块体,护岸护底等块体的稳定性.文中根据立堵截流水力学不同特点将截流过程划分为三个阶段,即非困难阶段、困难阶段和合龙阶段.这对指导截流工作很有帮助.此外还提出了计算龙口流速和流量的实用计算方法,从而简化了立堵截流设计.

Diversion works with screened intake built on steep mountainous streams abundant in gravel-pebble bed load have been proved to be one of the successful types of headworks in the Xinjiang Uygur Autonomous Region. As water carrying gravels and pebbles flows over the screened intake on the top of the diversion dam, it shows good efficiency in diverting water and sluicing sediment. There have been about 50 headworks of this type built in Xinjiang.This type of diversion works consists of the dam with screened intake,...

Diversion works with screened intake built on steep mountainous streams abundant in gravel-pebble bed load have been proved to be one of the successful types of headworks in the Xinjiang Uygur Autonomous Region. As water carrying gravels and pebbles flows over the screened intake on the top of the diversion dam, it shows good efficiency in diverting water and sluicing sediment. There have been about 50 headworks of this type built in Xinjiang.This type of diversion works consists of the dam with screened intake, the sediment flushing sluice, the spillway dam and the guide levees. The layout of the works have to be decided by the hydrological and geological conditions of the river. Generally, when the sill of the flushing sluice is lower than the crest of the screened intake, it is easy to maintain the main channel of the river in front of the headwork. As soon as the diversion works being put into operation, the relation between the sediment content and the discharge will be readjusted, i.e.,a large amount of sediment should be flushed by a smaller amount of water. In order to prevent sediment deposited in the downstream reach of the headwork, it is necessary to make the downstream channel as narrow as possible by extending the guide levees and other measures. In order to prevent serious scouring downstream which may endanger the security of the project, the narrowing of the channel and the raising of the crest of the screened intake should be considered comprehensively. Generally, the sediment flushing sluice should be located near the screened intake. If diversion is tak- ' en from both sides of the siream, the flushing sluice should be located in the middle of the river. The flushing sluice can be opened continuously or intermittantly in the flood period, but it should be closed in the low water season for backing up water for diversion. The contraction of the reach upstream by guide levees will constitute a favorable bend or make the flow more smooth and steady, so that the flow pattern in front of the intake can be kept in good condition for diversion under wide range of discharges, Experience shows that it is better to use apron made of series of logs and anti-scour diaphragm instead of plunge pool in the connection of the discharging structures and the natural river bed downstream in order to keep the structure from underwashing.

在坡降陡急和河床为卵石、漂、砾的山溪河道上,底栅式引水枢纽在新疆已被证明为十分有效的引水形式之一.水流挟带的大颗粒泥沙越过枢纽的栏栅顶面而送到下游,使这种引水形式的排沙引水效果良好.新疆已建成这种形式的渠首近五十座. 引水枢纽由栏栅堰、冲沙闸、溢洪堰和导流堤组成.工程的布置方式取决于河道的水文泥沙条件和地质条件.在一般情况下,当冲沙闸底低于栏栅堰底时,枢纽的上游河道容易保持主槽.渠首建成后,河道中的含沙量和流量的关系重新调整,即以少量的水冲走大量的泥沙.为了防止枢纽下游淤积,必须对下游河段采取缩窄并延长导流堤等措施.但缩窄下游河床和抬高栏栅堰顶应统一考虑, 以免引起剧烈冲刷和危及建筑物安全.布置冲沙闸一般应靠近栏栅堰.当枢纽采取两岸取水形式时,冲沙闸应布置在河床中心.冲沙闸门在洪水期或则长期开启,或则间隙开启,在枯水期一般为闭闸壅水运用.上游导流堤有助于人为地造成有利的弯道,或者能使河床水流保持平稳, 以便使上游河床在各级流量下都能具有较好的水流条件.通过实践证明,衔接闸,堰和天然河道的消能防冲设施,以裙板和防冲墙效果较好.

The pipe-shaped geotextile, long bags filled with earth, is a kind of soft structures for anti-scour. This paper sums up the design and construction of the structure and discusses its effects on anti-scour in practical engineerings for bank protection on the. lower Yellow River. The author thinks how to connect all bags togather as an entire structure and how to improve the technique for filling them with earth are the main problems in their application.

黄河下游在采用充土织物长管袋软体排作为险工坝岸护底方面作了初步尝试。此种软体排由化纤编织布和充土织物长管袋组成;编织布防止河床冲刷,充土织物长管袋起压固防冲布的作用。文章在工程实践的基础上,总结了软体排护底工程的设计、施工经验,分析了软排体的防冲效果,并指出在增强排体结构的整体性和改进充土设备等方面,还需作进一步的探索。

 
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