1) sediment deposition ratio
淤积比
1.
(sediment deposition ratio of Luoshan Hankou reach to Dongting Lake) and λs, (sediment diversion ratio from Yangze River to Dongting Lake) is obtained.
对长江中游泥沙输移规律进行了综合分析,建立了螺山至汉口河段和洞庭湖区泥沙淤积比λv与三口分沙比λs之间的定量关系。
2) siltation
淤积
1.
Characteristic of Circumfluence in Dredged Harbor Basins and Its Influence on Siltation;
挖入式港池回流特性及其对淤积的影响研究
2.
Tidal Current Numerical Simulation and Sedimental Siltation Analysis of 300,000-ton Crude Oil Dock of Lanshan Port Area, Rizhao Port;
日照港岚山港区30万吨原油码头工程潮流数值模拟及泥沙淤积分析
3) sedimentation
[英][,sedɪmen'teɪʃn] [美]['sɛdəmɛn'teʃən]
淤积
1.
Research on sedimentation in the tidal reach downstream of Sheyang tide lock;
射阳闸闸下感潮河段电厂码头和取水工程淤积研究
2.
New method for surveying reservoir storage and sedimentation amount;
水库库容和淤积测量技术研究
3.
Measurement for sand sedimentation control and effect analysis of Lubuge reservoir;
鲁布革水库控制泥沙淤积的措施及效果分析
4) Deposition
[英][,depə'zɪʃn] [美]['dɛpə'zɪʃən]
淤积
1.
The Deposition, Breach, and Diversion in the Lower Yellow River and Their Relationships with Human Activities during the Historical Period;
历史时期黄河下游的淤积、决口改道及其与人类活动的关系
2.
Impact of deposition downstream movement in Qiantang Estuary on Upstream Flood Level;
钱塘江河口淤积下移对上游洪水位的影响分析
5) deposit
[英][dɪ'pɔzɪt] [美][dɪ'pɑzɪt]
淤积
1.
Study on forecast method of diameter composition of deposited material in navigation channel on silt coast;
粉沙质海岸港口外航道淤积物粒径组成的预报方法研究
2.
A method for calculating depositional rate after warping the bank in the silty estuary;
河口边滩围垦后淤积计算方法研究
3.
It proves that spiral flow can efficiently transport grains,create the circumstance of suspension,and decrease deposition.
通过实验,对螺旋管流中沙质断面分布情况进行了讨论,进一步证实了螺旋流能有效地输送固粒,造成“悬浮”的气氛,不易淤积的特点。
6) silting
[英][silt] [美][sɪlt]
淤积
1.
Based on an experiment,the local scour and silting characteristics near the permeable spur are studied preliminarily,an actual measured geographical map of this district is drawn,and the maps of the permeable spur with different pervious rates are compared in this thesis,especially in cross-section,lengthwise direction section and the section of permeable spur axial line.
结果表明,透水丁坝的最大冲刷深度小于不透水丁坝,但其下游侧有冲刷槽,其深度从坝根到坝头差距不大,且该冲槽宽度随透水率的增大而增大;透水丁坝对河床的有效影响长度比同样坝长的不透水丁坝略长,最大淤积高程则更高,透水率为30%时的影响长度最大。
2.
Consolidated sand, caused by the movement of sand wave and longitudinal dune, is a silting phenomenon takes place in backflow zone of Hanjiang Reservoir.
铁板沙是汉江库区变动回水区的一种泥沙淤积现象,是沙浪、沙垄运动的产物。
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