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单宽渗流量
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  “单宽渗流量”译为未确定词的双语例句
     2.The discharge of seepage per unit width q is lower than or equal to the allowable design discharge (in consideration of storage and exploitation of water energy).
     2.单宽渗流量小于或等于允许设计渗流量 (以蓄水水能利用为原则).
短句来源
     The authors analyzed the available results about seepage of fracture and revealed that relationship between discharge of seepage and average aperture for rough fracture had two kinds of power relationship,taking average aperture to replace hydraulic aperture.
     在充分总结和认真分析了裂隙渗流现有研究成果以后发现,采用平均隙宽代替水力隙宽后,裂隙单宽渗流量与平均隙宽之间存在两种截然相反的幂指数关系,一种是指数大于3的超立方关系,而另一种是指数小于3的次立方关系。
短句来源
     The results showed that the seepage of unit dam width decreased dramatically after treatment and the anticipative anti-seepage goal was reached.
     结果表明,采用混凝土防渗薄墙处理后的大坝单宽渗流量显著减小,能达到预期的防渗目的;
短句来源
     Hydraulic factors including the discharge per unit width,saturation line and seepage gradient ware calculated to predicate the seepage control efficiencies of the totally enclosed and suspended high pressure spraying impervious wall design schemes. Results show that 70.04%-98.32% seepage quantity can be reduced,and seepage gradient at counter drain reduces to 0.001-0.023 under totally enclosed reinforcing design,which will contributes to a more effective seepage control.
     计算得出全封闭、悬挂式高压喷射灌浆防渗墙两加固方案下坝体单宽渗流量、浸润线、渗透比降等水力要素,结果表明全封闭设计可降低70.04%~98.32%渗流量,截渗沟或明渠处溢出渗透坡降降至0.001~0.023,控制效果显著。
短句来源
  相似匹配句对
     Selection of Energy Dissipators With large Unit Discharge
     大流量消能工的选择
短句来源
     4.An empirical formula and a method for calculating unit tam width seepage discharge of rockfill dam are given. \=
     (4)给出了坝体流量计算方法与经验表达式.
短句来源
     Study on Distribution Coefficient to Unit Discharge of Pollution in River
     污染带流量分布参数研究
短句来源
     2.The discharge of seepage per unit width q is lower than or equal to the allowable design discharge (in consideration of storage and exploitation of water energy).
     2.流量小于或等于允许设计流量 (以蓄水水能利用为原则).
短句来源
     h_k is the critical depth, determined from specific discharge (initial cross-section of the free jet) ;
     h_k为鼻坎流量q所决定的临界水深;
短句来源
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This paper is confined to a discussion of prevention of seepage from earth dams by means of blankets upstream which is considered to be a method for greater,quicker,better and more eco- nomical results.The following main problems are included: 1.Ideas of possibilities of piping through foundation soil and resistance of soil to percola- tion,and their effects on calculations of the lengths of blankets; 2.Calculations of economical and safe lengths of blankets and discharge of seepage; 3.Determination of the line...

This paper is confined to a discussion of prevention of seepage from earth dams by means of blankets upstream which is considered to be a method for greater,quicker,better and more eco- nomical results.The following main problems are included: 1.Ideas of possibilities of piping through foundation soil and resistance of soil to percola- tion,and their effects on calculations of the lengths of blankets; 2.Calculations of economical and safe lengths of blankets and discharge of seepage; 3.Determination of the line of saturation behind a inclined wall and the equipotential line below a blanket. The choice of the minimum blanket length depends in the main on the following conditions: 1.The seepage gradient through the dam foundation below the blanket jo is lower than or equal to the allowable gradient for the soil in the dam foundation(in consideration of no de- formation in seepage); 2.The discharge of seepage per unit width q is lower than or equal to the allowable design discharge (in consideration of storage and exploitation of water energy). Based on the subdivision principles of and the above-mentioned con- siderations,the following equations are derived.For the first condition,the blanket length is calculated from Equation(15);and that for the second condition,Equation(14). When the blanket length is known,the discharge of seepage can be calculated from Equa- tion (18). The blanket thickness is calculated by Equation(25). The 72 experiments made in the laboratory show that the formulas presented in the paper appear to be for the present more accurate than that of other scholars at home and abroad. The theoretical analysis and experiments may lead to the following important ideas regarding prevention of seepage by means of blankets: 2.The less the permeability of a blanket(k_0/k_n>5000)is,the greater its effect of seepage prevention will be,and vice versa; 2.Independent of the permeability of a blanket,there exists the idea of“effective blanket length”,i.e.,for a length larger than the effective length,the effect of seepage prevention of blanket is its permeability increases. 3.It is impossible for a blanket of stronger permeability(independent of length)to do as well as that of weaker permeability(with respect to discharge of seepage).Thus the weaker the permeability of blanket,the better and the value of k_0/K_n should be higher than 2000 at least.

本文指出土坝上游用铺盖防渗是一种符合多、快、好、省的方法.本文主要研究了下列问题:1.介绍基础土壤的管涌可能性及其所谓抗渗强度的概念,并讨论它们对设计铺盖长度的影响;2.讨论了经济安全的铺盖长度、厚度及渗流量计算;3.确定斜墙后浸润线的位置及铺盖下等势线的分布.选择最短铺盖长度,主要取决于下面两个条件:1.铺盖下坝基渗透坡降 j_0小于或等于坝基土壤的尤许坡降(以不发生渗透变形为原则);2.单宽渗流量小于或等于允许设计渗流量 (以蓄水水能利用为原则).根据巴夫洛夫斯基的分段法原理及上述原则得到下列计算公式.铺盖长度计算:表示第一个条件的计算公式为(15)式;表示第二个条件的为(14)式.给定了铺盖长度后,渗流量按(18)式计算.铺盖的厚度按(25)式计算.从72个试验资料证实本文所建议的计算公式在目前说来,较其他国内外学者的公式精度高.从理论和试验研究结果可得铺盖防渗的几点重要的概念:1.铺盖的透水性愈小(k_0/k_n≥5000)防渗的效用也就愈大,反之防渗的效用则很小.2.不管铺盖的透水性强与弱都存在着“有效铺盖长度”的概念,即铺盖的长度如大于有效铺盖长度时,它的防渗作用不显著.“有效铺盖长度...

本文指出土坝上游用铺盖防渗是一种符合多、快、好、省的方法.本文主要研究了下列问题:1.介绍基础土壤的管涌可能性及其所谓抗渗强度的概念,并讨论它们对设计铺盖长度的影响;2.讨论了经济安全的铺盖长度、厚度及渗流量计算;3.确定斜墙后浸润线的位置及铺盖下等势线的分布.选择最短铺盖长度,主要取决于下面两个条件:1.铺盖下坝基渗透坡降 j_0小于或等于坝基土壤的尤许坡降(以不发生渗透变形为原则);2.单宽渗流量小于或等于允许设计渗流量 (以蓄水水能利用为原则).根据巴夫洛夫斯基的分段法原理及上述原则得到下列计算公式.铺盖长度计算:表示第一个条件的计算公式为(15)式;表示第二个条件的为(14)式.给定了铺盖长度后,渗流量按(18)式计算.铺盖的厚度按(25)式计算.从72个试验资料证实本文所建议的计算公式在目前说来,较其他国内外学者的公式精度高.从理论和试验研究结果可得铺盖防渗的几点重要的概念:1.铺盖的透水性愈小(k_0/k_n≥5000)防渗的效用也就愈大,反之防渗的效用则很小.2.不管铺盖的透水性强与弱都存在着“有效铺盖长度”的概念,即铺盖的长度如大于有效铺盖长度时,它的防渗作用不显著.“有效铺盖长度”是随铺盖的透水性增加而减小.3.想用强透水性的铺盖防渗(不管铺盖怎样长),要达到弱透水性铺盖那样的效果是不可能的(指渗流量的大小而言),因此,铺盖的透水性愈小愈好,k_0/k_n 值最好至少大于2000.

The structure of the longitudinal cofferdam and its foundation of theFeilaixia project in Beijiang River is complicated.This paper first applies finiteelement methods to the solving Laplace equations and draws equipotential linesof nine combinations of different upperstream and downstream levels and unitof permeability of jet concrete wall partition, then utilizes equivalent unit ofpermeability to calculate unit discharge of twenty different combinations ofupperstream and downstream levels and unit of permeability...

The structure of the longitudinal cofferdam and its foundation of theFeilaixia project in Beijiang River is complicated.This paper first applies finiteelement methods to the solving Laplace equations and draws equipotential linesof nine combinations of different upperstream and downstream levels and unitof permeability of jet concrete wall partition, then utilizes equivalent unit ofpermeability to calculate unit discharge of twenty different combinations ofupperstream and downstream levels and unit of permeability of cofferdam and itsfoundation,and finally solves two groups of escape gradient and escape velocityby means of local flow net method. The conclusion of this paper can serve asimportant reference to project-undcrtaking unit.

北江飞来峡工程纵向围堰堰体及堰基的组成复杂。本文采用了有限元解拉普拉斯方程的方法解绘出不同上下游水位和高喷板墙不同渗流系数各种组合的等势线,并用当量渗流系数法计算了二十种不同上下游水位和堰体、堰基渗流系数组合的单宽渗流量,以及用局部流网法解出两组逸出比降和追出流速、最后得出可供工程单位参考的结论和理论规律。

This paper applies finite element methods to the solving Laplace equations and drawsequipotential lines of typical combinations of different upperstream and downstream levels andunit of permeability of jet concrete wall partition of longitudinal cofferdam of the Guang DongFeilaixia project in Beijing River,then utilizes equivalent unit of permeability to calculate unitdischarge of different combinations of upperstream and downstream levels and unit ofpermeability of cofferdam and its foundation, and finally...

This paper applies finite element methods to the solving Laplace equations and drawsequipotential lines of typical combinations of different upperstream and downstream levels andunit of permeability of jet concrete wall partition of longitudinal cofferdam of the Guang DongFeilaixia project in Beijing River,then utilizes equivalent unit of permeability to calculate unitdischarge of different combinations of upperstream and downstream levels and unit ofpermeability of cofferdam and its foundation, and finally solves two groups of escape gradient andescape velocity by means of the local flow net method. The conclusion of this paper can serve asimportant reference to project-undertaking unit.

采用有限元解拉普拉斯方程的方法解绘出广东北江飞来峡工程纵向围堰不同上、下游水位和高喷板墙不同渗流系数典型组合的等势线,并用当量渗流系数法计算了不同上、下游水位和堰体、堰基渗流系数组合的单宽渗流量,用局部流网法解出逸出比降和逸出流速.最后得出结论和理论规律.

 
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