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downstream slope
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  下游护坡
     A design risk model for the downstream slope for overtopped rockfill cofferdam during flood
     过水土石围堰下游护坡的溢流设计风险率模型
短句来源
     Based on system analyses the main factors which affecting overflow operating condition of overflow earth-rock cofferdam, the condition of overflowing is measured by the current velocity head of cofferdam downstream slope blacks.
     本文主要针对过水围堰与隧洞联合泄流的施工导流方式,通过系统分析影响过水土石围堰溢流工况的主要因素,采用下游护坡尾水位流速水头作为衡量围堰溢流工况的指标。
短句来源
     Then, through analyzing the uncertainty of the flood and the discharge process of diversion tunnel, a risk model for the downstream slope of overtopped earth-rock cofferdam during construction diversion and calculating method are presented.
     在此基础上,研究分析施工洪水过程、导流隧洞泄流能力、围堰上下游水位差等的不确定性,提出过水围堰下游护坡的溢流风险模型,并运用Monte-carlo法求解其风险率,确定围堰溢流最不利工况。
短句来源
     Based on former results, actual observational data and model tests of downstream slope protection stability for overflow cofferdam and confirming the worst overflow, risk model of overflow is established and MonteCarlo method is put forward.
     基于过水围堰下游护坡稳定性分析、实际观测资料和模型试验的研究成果,在分析土石过水围堰溢流工况的基础上,建立了溢洪堰面抗冲刷的风险率模型,提出了风险率的Monte-Carlo计算方法。
短句来源
  下游边坡
     Study on the Gabion's Flexity Effect on the Stability of the Protection Gabions on The Downstream Slope of Cofferdam
     过水堆石围堰下游边坡护坡铅丝笼自身柔性对稳定性影响的研究
短句来源
     Stability of Protection Gabion on Downstream Slope of Overflow Rockfill Cofferdam
     过水堆石围堰下游边坡护坡铅丝笼稳定性研究
短句来源
     Stability analysis for downstream slope of Shuibuya facing rockfill dam
     水布垭面板堆石坝下游边坡稳定分析
短句来源
     The effects of atomization by flood discharge on downstream slope of Ertan hydroelectric station
     二滩水电站泄洪雾化对下游边坡的影响
短句来源
  下游坡
     At the same time, the paper analyses sensitiveness of downstream slope angle and board thickness that influence the stability of concrete block, which offer the theory reference for concrete block protection design.
     并对影响混凝土护板稳定的下游坡角度以及护板厚度进行敏感性分析,为混凝土护板设计提供理论参考。
短句来源
     Hence the alternative of middle line is selected for the arrangement of the axis of the major dam. Two kinds of darn profiles have been compareal, and the one with vertical upstream face, the downstream slope 1: 0. 8 and the elevation of apex of basic triangle being 232m is selected.
     通过两种主坝剖面的比较研究,采用上游面直立,下游坡为1:0.8,基本三角形顶点高程为232m的剖面;
短句来源
     On the basis of seepage analysis, the article calculated the stability of sliding resistance for downstream slope of upper part Gouhou dam body.
     在渗流分析的基础上,对沟后坝上部坝体的下游坡进行了抗滑稳定计算。
短句来源
     Based on model studies and theoretical analyses, the model technique and theory of overflow and seepage flow and downstream slope failure in overtopped rockfill dam armoured with reinforcing fabric are summarized in the paper.
     本文通过模型试验和理论分析,论述了钢筋网保护下堆石坝过水模型试验在溢流、渗流和坝下游坡破坏等方面的模拟方法和原理。
短句来源
     At the design and check flood level, infiltration over a large area and a large seepage gradient in the downstream slope are found unfavourable to the safety of the downstream slope, seepage failure may occur in the clay blanket and seepage failure in the sandstone foundation may extend to a large scale.
     在设计洪水位和校核洪水位下 ,坝体下游坡将出现大面积散浸 ,下游覆盖层顶托渗透坡降较大 ,对下游坝坡稳定不利 ,坝上游粘土铺盖可能产生渗透破坏 ,坝基砂卵石层渗透破坏的范围可能扩大
短句来源
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  “downstream slope”译为未确定词的双语例句
     Adjustment on the Downstream Slope of the Gravity Dam of the Fenhe Reservoir Ⅱ
     对汾河二库重力坝下游坝坡调整
短句来源
     Development and Research of Technology of Horizontal Drainage from Downstream Slope Toe of Levees
     堤防背坡脚水平排水技术开发与研究
短句来源
     (2)the crest have transverse crack which result in the seepage exiting from downstream slope of the dam;
     (2)坝顶存在横向裂缝,渗流很快从下游坝坡逸出;
短句来源
     (3)the downstream slope isn't properly protected by filter;
     (3)下游坝坡未作反滤保护;
短句来源
     Seismic stability analysis of downstream slope on the rockfill dams
     堆石坝坝坡的抗震稳定分析
短句来源
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  downstream slope
Effect of Thawing Soil on the Stability of the Downstream Slope of the Dam for the Ust'-Srednekan Hydroelectric Plant
      
1.The calculations showed that in the construction period the maximum axial tensile strains occur in the lower part of the facing in the zone of abutment of the downstream slope of the dam to the foundation.
      
In this connection it is recommended to install drainage in the downstream slope of the dam with discharge of the water below the depth of freezing.
      
1.The conditions of operation of the transition zone at the upstream slope side of the dam's core, between its foundation and the minimum operating level, are more favorable than those at the downstream slope.
      
Determination of the shape of the downstream slope of an earth-fill dam from the seepage strength conditions at the face
      
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Overtopping is one of the major cause for failure of silt arresting earth dams.In the study of protecting measures for the silt arrester of which the designed standard of flood prevention is exceeded,the Soil and Water Conservation Institute of Shanxi Province made an experiment of planting vegetation on dam slopes to prevent the dam from failure by overtopping. The height of the experimental dam is 6 m and the downstream slope is 1:2.5. Buffalograss, sheepgrass (Aneurolepidium chinense), shrubby falseindigo...

Overtopping is one of the major cause for failure of silt arresting earth dams.In the study of protecting measures for the silt arrester of which the designed standard of flood prevention is exceeded,the Soil and Water Conservation Institute of Shanxi Province made an experiment of planting vegetation on dam slopes to prevent the dam from failure by overtopping. The height of the experimental dam is 6 m and the downstream slope is 1:2.5. Buffalograss, sheepgrass (Aneurolepidium chinense), shrubby falseindigo and Chinese peashrub are planted on sloping surface of the dam for protection against the overflow. The erosion resistant ability of the dam slope is enhanced by planting these plants, when the water with a depth of 0.38-0.56 m overflows the top of dam,local scour holes begin to form on the dam slope covered by buffalograss after overflowing for more than 70 min.By comparison,it is found that the grass family vegetation is more advantageous than shrubs such as shrubby falseindigo, Chinese peashrub and and others,and buffalograss is better than sheepgrass when these plants are used for protecting the dam slope.The experiment shows that in order to prevent the dam from failure due to overtoping by abnormal flood,it is feasible to protect the bam slope with plants in small size silt arresting dams.The paper describes the experiment and the variation of flow pattern and analyses the erosion-resistant ability of the protection plants.

洪水漫顶是土质淤地坝垮坝的主要原因之一。为研究淤地坝超防洪标准的保坝措施,山西省水保所进行了植物护坡土坝过水试验研究。试验坝坝高6米、下游坝坡1:2.5,栽植野牛草、羊草、紫穗槐、拧条护坡,经堰顶水深0.38~0.56米溢流,护坡植物都表现出具有增强坝坡抗冲能力的作用,其中野牛草护坡经70多分钟溢流,坝坡才开始形成局部冲坑。在护坡植物中,禾本科草本植物明显优于柠条、紫穗槐等灌木,野牛草好于羊草。试验研究表明,对群众性的小型淤地坝,采用植物护坡防止非常洪水漫顶造成的垮坝是经济可行的。本文论述了植物护坡过水试验情况及流态变化,并对护坡植物的抗冲性能进行了研究分析。

Tnis paper investigates the various forms of stabilities and the processes of the motion of concrete blocks laying on the downstream slopes of overtopped rockfill cofferdams and presents the new concepts of absolute-stability and quasi-stability.The motion of the block is reduced to the stiff-body motion on plane.The formulas are derived for the conditions of concrete blocks absolute-stability and quasi-stability according to the equations of stiff-body motion on plane.

本文通过对过水围堰下游边坡混凝土护坡板各种型式的稳定和失稳过程的分析,把护坡板的稳定分为绝对稳定和准稳定;把护坡板的失稳归结为刚体平面运动。并由刚体平面运动方程,推导出混凝土护坡板的绝对稳定和准稳定条件关系式,以确定护坡板的尺寸。

Based on model studies and theoretical analyses, the model technique and theory of overflow and seepage flow and downstream slope failure in overtopped rockfill dam armoured with reinforcing fabric are summarized in the paper.

本文通过模型试验和理论分析,论述了钢筋网保护下堆石坝过水模型试验在溢流、渗流和坝下游坡破坏等方面的模拟方法和原理。

 
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