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anti scour
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  抗冲
     Study on Soil Anti-erosion and Anti scour of Prickly Ash at Edges of Terraces in Drought Upland of Weibei
     渭北旱塬花椒地埂林土壤抗蚀抗冲性研究
短句来源
     Based on statistical analysis of observed data of experiment of water and soil runoff plots at Xifeng soil andwater conservation station from 1964 to 1980,it is proved that there is a very close corelation(y=aH ̄b)betweenindividual rain fall erosive modulus and depth of runoff,which is a power funetion,The unit individual runoff depth(KW)was as soil anti scour index which was used to evaluate the faetors affecting soil anti scourability.
     通过对西峰水保站1964~1980年径流小区观测资料的统计分析,结果表明:次暴雨侵蚀模数与径流深之间以幂函数相关为最好(g=aH ̄b)。 笔者以单位面积、单位径流深的冲刷量均值(kw)做为描述土壤抗冲性的指标,并对其影响因素进行了分析。
短句来源
     Through the measurement and analysis of plant root system for Nenjiang river dyke protection and soil anti scour,anti erosion strength and shearing strength,the anthor find that the surface soil is stronger that the bottom soil at the same site in shearing strength as well as higher anti scour and anti erosion.
     通过对嫩江大堤护坡植物根系及土壤抗冲、抗蚀及抗剪强度的测定分析,发现同一地段土壤的抗冲、抗蚀(水稳性)指数及抗剪强度均是表土层大于底土层。
短句来源
     Since plant root system is of strong soil solidification function, the soil anti scour index is of evident relation to root length and root volume with single correlation coefficients of 0.914 6 and 0.819 7 respectively.
     植物根系有较强的固持土壤功能,抗冲指数与根长、根量间有明显的相关性,单相关系数分别为09146和08197。
短句来源
  “anti scour”译为未确定词的双语例句
     Study on Anti Scour Test in Rock River Bed by Project Comparison Method
     工程类比法探讨岩基冲刷模拟试验
短句来源
     According to the tests on fixed bed and movable bed models for scheme of channel diversion and scheme of river-bed diversion, the latter has been selected in combination with multiple flexible protection measures. A horizontal block facing has been added to form the first protection front of anti scour facilities to ensure safety and reliability of the cofferdam.
     通过明渠导流和河床导流方案的定床及动床模型试验研究,选择了河床导流方案,并联合使用多种柔性防护措施,增设水平块石护面作为防冲设施的第一道防线,使围堰安全可靠。
短句来源
     By means of the TGPs sediment model of dam region, the accumulation of sediment and navigation conditions of open channel and the approach channels of the temporary lock during the second stage diversion were studied. Some engineering measures on desilting and preventing or reducing sedimentation in approach channels as well as their anti scour protection are proposed in the paper.
     通过坝区泥沙模型试验研究,进一步弄清了第二期施工导流期的明渠和临时船闸引航道的通航水流条件和泥沙淤积情况,提出了引航道防淤减淤和河段的防护等工程措施。
短句来源
     The soil with higher organic material content has stronger anti scour strength and higher stablity in water. Soil anti erosion strength is of lower correlation to organic material content than that to root length and root volume with the correlation coefficient of 0.913 2 and single correlation coefficients of 0.813 7 and 0.809 1 respectively.
     有机质含量高的土壤抗蚀性强,水稳性指数大,土壤抗蚀性与有机质含量间的相关系数为09132,与根长和根量的相关性相对较低,单相关系数分别为08137和08091。
短句来源
     One of the key technic problems of designing the plant is the rational layout of flood discharge structure to solve downstream energy dissipation and anti scour.
     合理布置泄洪建筑物,解决下游消能防冲问题是该电站设计的关键技术问题之一。
短句来源
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  相似匹配句对
     Anti-H.
     方法:将H.
短句来源
     Anti-H.
     结果表明,抗H.
短句来源
     It also expouds analysis of ice resistance, seismic resistance and anti-scour.
     论述了抗冰分析、抗震分析及防冲刷问题;
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
     The yellow scour of piglet and
     经果表明:仔猪黄痢病和水肿病的发病率分别减少1401%和617%,试验组提高仔猪成活率2146%,与对照组比较差异显著。
短句来源
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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...

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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