Instream sand mining can increase or decrease of the river sediment discharge.
河道采砂可能会增加河流的输沙,也可能会减少河流的输沙。
A conceptual formulation for gullies was obtained by simplifying the Bagnold's function of river sediment discharge.
把拜格诺的河道水流悬移质泥沙公式简化为简单概念的沟道产沙公式。
The seasonal variations in water and sediment discharges affect the distributions of annual runoff and sediment discharge.
水沙的季节性变化影响着年内的径流量、输沙量的分配情况。
Theresults show that the pass percent of annual sediment discharge and the model efficiency coefficient (DC) are about 50%.
计算结果显示年输沙总量合格率与模型效率DC均为50%左右。
The results showed the ability of simulated data varied by different GCMs. It led to the difference of estimated runoff depth and sediment discharge.
结果表明:不同大气环流模式对该流域降水量模拟结果不同,导致未来气候条件下径流和输沙量的预测也存在一定差异。
This paper proves the calculation of long-shore sediment discharge rates and design waves by making full use of the roses of wave factors (wave height, period).
充分利用波浪要素(波高、周期)玫瑰图推算沿岸输沙率和对设计波浪进行验证。
Sediment regulation in Xiaolangdi Reservoir is making full use of the flood potential in the lower fiver channel for sediment discharge into the lower Yellow River.
小浪底水库的泥沙多年调节,充分利用下游河道的洪水输沙潜力输沙入海,是解决黄河下游泥沙问题和节省输沙用水的有效技术途径。
Annual runoff volume and annual sediment discharge as a whole take on a synchronously-decreasing trend, and the evolution process is characterized by obvious stages.
年径流量、年输沙量总体均呈同步减少趋势,在演变过程中表现出明显的阶段性。
Meanwhile the author conducts preliminary exploration on ice jam entrainment sediment concentration, total sediment discharge, sediment transport distance and its estimation method;
对冰凌含沙量、输沙总量、输沙距离的估算方法进行了初步探讨;
In order to ensure the excavation of sediment discharge bottom outlet at right side and foundation of the power house dam section, the blasting method was used in Jinghong power station.
景洪水电站主厂房右侧紧邻右冲沙底孔,右冲沙底孔作为二期纵向围堰的组成部分,在主厂房开挖前已经形成。
There are lots of factors which influence the evolvement law of sediment discharge, and it is very difficult to be known and gained, it results in low precision of simulation and forecast.
影响输沙量演变规律的前期因素比较多,且难于确定和提取,这就造成对输沙量的拟合和预测精度较低。
The sediment discharge of rivers with cultivated waste land of dry farm, population density are indirect proportion, it with forest cover degree, per capita output of grain are inverse proportion.
河流输少量与旱坡耕地垦殖率、人口密度成正比,与森林覆盖率、人均占有粮食成反比。
Wetland design can moderate peak flow rate and volume of runoff discharge and sediment deposition during precipitation events.
湿地项目可以缓和雨洪峰值流率及降水过程中的径流排放量和沉淀量。
The operation design must meet with its operation conditions of the operation level, design inflow discharge, sediment concentration, sediment settlement design standard and the operation time.
运行设计应满足沉沙池运行水位、设计入池流量、含沙量、泥沙沉降设计标准和运用时间等运用条件。
It is shown that the critical discharge between scouring and filling mainly depends on the sediment content, the proportional relationship be tween water and sediment, and the boundary condition.
该关系表明,冲淤临界流量主要与含沙量成某一次方的比例关系,同时受水沙搭配关系以及边界条件的影响。
It is shown that the critical discharge depends mainly on the sediment content, the water and sediment combination, and the boundary condition.
该关系表明,冲淤临界流量主要与含沙量成某一次方的比例关系,同时受水沙搭配关系以及边界条件的影响。
The result indicates that the discharge per unit width, the sediment concentration, the grain size of sand influences the depth of scour hole.
试验结果表明:浑水水流的单宽流量大小、含沙量的多少以及含沙粒径的变化都对冲刷坑深度有一定的影响。
The silting from a river with heavy sediment lood seriously affects the discharge capacity and effective life of the head work of a detention basin for flood diversion.
多沙河流侧向分洪后,分洪工程的前后经常引起大量而迅速的冲淤变化,这种变化严重的影响进水能力与工程的运用寿命。
After impoundment of Three Gorges reservoir, the sediment silting in the reservoir and clear water discharge significantly impact the downstream rive channel.
三峡水库蓄水运用以后,由于库区泥沙淤积,清水下泄,下游河道必然受到影响。
Using the improved ECOM model and coupling the sediment transport equation, the impacts of change of river discharge and sea level on estuarine turbidity maximum zone are studied.
应用改进的ECOM模式,耦合泥沙输运方程,研究径流量和海平面变化对河口最大浑浊带的影响。
The larger the critical diameter of sediment, the smaller the sacle of funnel is applied so as to strengthen the vortex to discharge sediment with less water consumption.
排沙下界粒径较大时,可以选择较小的漏斗尺寸,使涡流强度提高以较小的耗水率排放泥沙。
The bankfull discharge and corresponding sediment concentration is estimated through the above method.
其中的有效输沙流量及其相应含沙量采用本文方法估算。
The South Passage which is little affects by the human being is the main channel of water discharge and sediment in the Changjiang Estuary.
南槽是长江口主要的水沙交换通道之一,受人类活动影响较小。
Sediment deposition exists in the lake mouth of Changdou Harbor for a long time and develops seriously. It exerts great influences on the discharge and irrigation capacity of the river.
长兜港口门淤积现象由来已久,且呈日趋严重之势,极大影响了河道泄洪排涝与灌溉能力的发挥。
An equation to calculate the critical discharge for river bed variation in alluvial rivers was derived through the theory of non-equilibrium sediment transport.
利用非饱和和输沙公式,首次提出了以悬移质为主的冲积河流中冲淤临界流量与水沙以及边界条件的一般关系。
An equation to calculate the critical discharge for river bed variation in alluvial rivers was derived through the theory of non-equilibrium sediment transport.
利用非饱和和输沙公式,首次提出了以悬移质为主的冲积河流中冲淤临界流量与水沙以及边界条件的一般关系。
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