1) sedimentation elevation in front of the dam
坝前泥沙淤积高程
1.
A sectional model experiment was carried out to determine the sedimentation elevation in front of the dam and sedimentation configuration in the pressure conduits of bottom outlets of a reservoir on the Yellow River.
通过断面泥沙模型试验,对某水库泄水底孔压力段内泥沙淤积形态和坝前泥沙淤积高程进行了分析研究。
2) sludge before dam
坝前淤泥
1.
,the reinforcing design on the surface of sludge before dam is made by using the theoretical caculations for the piled-load preloading and subgrade treatment,so as to research on the reinforcing mechanism and loading plan,which may provide the important guidance for the design and construction of other similar projects.
以大滩口水库坝前淤泥面上利用加坝自重形成堆载,对水库淤积层进行预压固结为例,针对库区淤积物这类饱和软土具有高压缩性、高灵敏度、高流变性和低强度、低渗透系数的工程特性,借助堆载预压地基处理计算理论,进行坝前淤泥面上加固设计,探求加固机理,制定加荷计划,为类似工程设计及安全施工起到了重要的指导作用。
3) sediment deposition
泥沙淤积
1.
Study on the controlled water levels of Three Gorges Reservoir in September with considering the impact of sediment deposition;
泥沙淤积对三峡水库9月分旬蓄水的影响
2.
Impact on sediment deposition and shoals change in Chongqing Reach of the impounding water ahead of the schedule of the Three Gorges Reservoir;
三峡水库提前蓄水对重庆河段泥沙淤积和浅滩演变的影响
3.
Numerical model for effects of outlet shapes of approach channels on sediment deposition;
引航道出口形态对泥沙淤积影响的数学模型研究
4) sedimentation
[英][,sedɪmen'teɪʃn] [美]['sɛdəmɛn'teʃən]
泥沙淤积
1.
Analysis on influence of flow velocity-flow regime and sedimentation on operation of underground hydropower station of Three Gorges Project;
三峡工程地下电站前流速流态和泥沙淤积对电站运行的影响分析
2.
Study on water-sediment optimum allocation in upstream basin and comprehensive measures of sediment control in Guanting reservoirⅠ:Reservoir sedimentation and general plan of water and sediment control;
官厅水库流域水沙优化配置与综合治理措施研究Ⅰ——水库泥沙淤积与流域水沙综合治理方略
3.
Research on sedimentation analysis based on GIS technique;
基于GIS技术的泥沙淤积分析系统研究
5) sediment siltation
泥沙淤积
1.
Study on sediment siltation for extension project of Weifang harbor;
潍坊港扩建工程方案泥沙淤积研究
2.
By using wind,wave,tidal current,sediment numerical models based on the up-todata hydrology,sediment data of field observation and remote sensing data,sediment siltation in the deep channel is computed.
依据最新的水文、泥沙实测资料,利用风浪潮流泥沙数值模型对开挖深水航道泥沙淤积情况进行了计算。
3.
Based on a large quantity of meassured data,the pattern of sediment siltation is studied and the feasibility of building offshore deep water terminals in Tianjin Harbor is discussed as well.
通过天津港大量实测资料的对比分析 ,研究了泥沙淤积变化的特点 ,并对天津港在外海建岛式深水码头工程的可行性进行了论
6) sediment accumulation
泥沙淤积
1.
One dimensional flow and sediment mathematics model of river unsteady flow is used to study the change rule of the sediment depth at the gate of the water diversion canal of the Yangtze River to Han River water transfer project in different water sediment conditions;the influences of different roughness coefficients on the sediment accumulation depth are also analyzed.
通过一维非恒定流水沙数学模型,研究了不同水沙条件下引江济汉工程引水渠道口门泥沙淤积厚度变化规律,并分析了糙率对口门淤积厚度的影响情况,模型的计算结果与水流运动规律相吻合,可以为渠道引水防沙设计提供技术支持。
2.
According to the design requirements of water diversion for sediment control of the Yangtze River to Han River Water Transfer Project, the sediment accumulation conditions in the water diversion canal with or without sedimentation basin are researched on the basis of basic hydrology sediment and engineering data by one-dimensional constant flow heterogeneous sand mathematical model.
根据引江济汉工程渠道引水防沙的设计要求,在收集基本水文泥沙和工程基础资料的基础上,运用一维恒定流非均匀沙数学模型,研究了不设沉沙池和设沉沙池后引水渠道内泥沙淤积情况,模型计算结果可以为引江济汉工程中渠道引水防沙设计提供依据。
3.
Combining experimental data with site investigation results, this paper expounds the influence of layout of harbor basin′s axis on deposition thickness and total sediment accumulation in backflow area, analyzes the reasons of the influences, and puts forward suggestions on determination of reasonable axis of inland excavated-in basin.
结合挖入式港池水槽试验和现场调查结果,论述港池轴线布置对港池回流泥沙淤积厚度和总淤积量的影响,分析了产生这种影响的原因,并对挖入式港池设计时合理确定港池轴线提出了建议。
补充资料：坝区泥沙淤积
坝区泥沙淤积
sedimentation in dam area
boqLJ rl}sho ytljl坝区泥沙淤积(Sedimentation in dam area)河流上筑坝塑水后，由于塑水区内水深加大，流速降低，泥沙沿程淤积，并向坝前推进，造成坝前泥沙的淤积。坝区泥沙淤积产生的问题主要有:①在船闸引航道中及其口门附近产生淤积，使航深不足或水流不顺而有碍通航。②电站进水口前的泥沙堆积使过机水流中的含沙量增大，泥沙变粗，造成过水建筑物或水轮机过流部件的严重磨损。③坝前泥沙淤积有可能影响问门启闭，堵塞泄水孔，影响大坝安全。 以通航为主的枢纽和以发电为主的枢纽对坝区水流条件的要求不同，防治坝区泥沙淤积的措施也不一样。 (1)以通航为主的枢纽。宜将船闸布置在靠近稳定深乱线一侧，要避开弯道的凸岸和回流、缓流区。这些地区都是泥沙集中淤积处，且淤积后又难于冲走。结合各个工程的实际情况，可设置某些导流排沙工程，如修建引航导墙以破除回流减少淤积;设置底部高程较低的冲沙闸，以定期冲刷上游及下游引航道淤沙。 (2)以发电为主的枢纽。高水头水电站的防沙措施主要是设置高程较低的排沙孔。排沙孔布置在机组进水口的下面，防沙效果最好，但结构复杂，施工及管理都不便。一般把排沙孔设在进水口的侧下方，其位置以使进水口处在冲刷漏斗的影响范围之内为原则。低水头枢纽的防沙措施，主要是进行合理的平面布置。如利用弯道环流特性，正面取水，侧面排沙，同时设置导沙坎，常能取得较好的防沙效果。在中小型水库中，也可采取清浑水分治的办法，即在童水区上游修建排浑渠(或排浑洞)，当汛期洪水人库时，可将浑水通过排浑渠(洞)直接排往坝下游，减少主库淤积，缓解坝区泥沙问题。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条