河淤積 的英文怎麼說
中文拼音 [héyūjī]
河淤積
英文
accretion of river bed-
Based on 2m contour of surveyed bathymetry from 1976 to 1999 and mean - high - tidal line distracted from remote sensing images acquired by landsat - 5 tm from 1976 to 2000 respectively, quantitative analysis about alluvion and erosion as well as the relationship between accretion of modern yellow river delta and the water and sediment discharge of yellow river is made, and the results indicate the mean - high - tidal level is more effective than 2m contour of the bathymetry. it is found that the accretion of modem yellow river delta is becoming less and less, what ' s more, erosion is even more than alluvion in some recent years. diaokou promontory has been eroded seriously since yellow river changed its course in1976
以一般高潮線反映現代黃河三角洲沖淤演變時,從1976年黃河改道清水溝流路入海到2000年,整個黃洞三角洲凈造陸201 . 5km ~ 2 ,淤積有逐漸變慢的趨勢,甚至出現凈蝕退的年份;刁口河嘴大量蝕退,蝕退速率開始快速,后來逐漸變慢;清水溝河嘴大量淤積,淤積速率開始迅速,后來逐漸變慢,甚至出現凈蝕退;清水溝河嘴南側到支脈溝一段岸線與刁口河嘴以西到灣灣溝一段岸線基本穩定。Sediment deposited by flowing water, as in a riverbed, flood plain, or delta
沖積層河床、洪水淹沒的平原或三角洲中的流水淤積所產生的沉積層The deposition of sediment in our natural stream channels has greatly aggravated floodwater damages.
泥沙淤積在天然河道,已大大加劇了洪水的危害。The field observation of the sediments of storm surge produced by no. 11 typhoon in 1997 shows that sedimentation rate of storm surge sediments are greater than that of normal astronomical tide sediments, and the grain size shows relative coarse with poor sorting. vertical sequences of the storm sediment show parallel bedding and overlapped by hummock bedding. these characteristics provide good basis for building the index of storm surge deposit
通過對梁垛河閘9711號臺風的現場觀測並結合目前已有的風暴潮沉積的研究,分析了風暴潮沉積在構造和結構上的特點,從而建立了正常潮灘沉積中風暴潮沉積的識別標志,同時在野外觀測中還發現即使在風暴潮期間,高潮灘上部仍存在只有淤積沒有侵蝕的地帶。Elementary education system in kerala, india
清河水庫泥沙淤積及變化規律The nile floods the fields and deposits mud on them.
尼羅河泛濫,在田野上淤積一層泥。Analysis on flow and sediment movement in approach channels of tidal river branches
感潮河段船閘下引航道水沙運動及泥沙淤積Then river width increased and the intensity of deep point lowing and bed material coarsening decreased and water level lowed continuously. so the bed form changed toward to u type. the bed regulation is realized through sediment silting in different parts in cross section during silting period and the deformation of bed form changed from broad u type channel to narrow and deep v type channel
研究表明,河道在持續沖刷前期深泓點及水位下降與河床粗化同步發展,河床向v型發展;沖刷後期深泓點下降、河床粗化減弱,河道展寬增大,水位繼續下降,河床向u型發展;在以淤積為主時期的調整,是通過斷面不同部位的淤積來實現的,但都是由u型較大河槽向v型窄深小槽發展。It is mainly by analyzing the features of sediment concentration distribution in vertical in this paper, and then the problems of effect of headwork gates on sediment prevention, relation between distribution of sediment deposition in irrigated areas and its treatment and utilization, estimating the influence of withdrawing water and sediment on channel deposition and erosion in lower yellow river, and treatment and utilization of the sediment entered into canals are discussed
本文主要從分析計算含沙量沿垂線分佈特點,探討渠首防沙的作用,分析灌區泥沙淤積分佈特性與泥沙處理利用的關系,分析計算引水引沙對黃河下遊河道沖淤影響及入渠泥沙的處理利用等問題。The thesis imposed some means to control sediment despoil of lower wei - river resulted from dong zhuang reservoir in the light of the research results and model - test a ) dong zhuang reservoir ? dispatch should be combined with the water coming from the higher wei - river, which can utilize fully the ability of holding sediment of water coming from wei - river
結合模型試驗及分析結果,提出了東莊水庫對渭河下游淤積的控制措施:東莊水庫結合渭河上游來水情況進行調度,充分利用渭河上游來水的挾沙能力。Study achievement appears as following aspects : ( 1 ) yellow river estuary gate river flow and tide flow mixed area is not keep standing deposition status, on special income water and sediment conditions, boundary conditions and oceanic power conditions, this area may on the scour status ; ( 2 ) observed from estuary sediment deposition distributing process : delta and sea offing area sediment deposition vary trend is similar, each part sediment deposition scale varies as wave shape ; ( 3 ) on estuary gate, affect the sediment deposition factors, primary factors are tide prop, the gate widens gradually, estuary gate have branches, brine induced flocculation. this paper study the estuary gate widen, estuary gate have branches to affect the river channel deposition in quantity ; ( 4 ) based on field measured data, for the first time, deduce the estuary sediment deposition and distributing regress formula which can estimate estuary different areas sediment deposition volume ; ( 5 ) this subject demonstrate the estuary delta coastline dynamic balance conception, build the relationship between the estuary income sediment with deposition land area, draw the following important conclusion : when estuary years - averaged income sediment keeps at 345 million tons, the delta coastline may on the dynamic balance status. ( 6 ) this subject firstly brings up estuary sediment optimized control conception, and has the primary study on the macroscopically optimized control conception method
研究認為: ( 1 )黃河河口口門逕流潮汐區域並非持續保持淤積狀態,在特定的來水來沙、邊界條件和海洋動力條件下,該區域可以處于沖刷狀態; ( 2 )從河口泥沙沉積分配的過程來看:三角洲與濱海區泥沙的沉積變化趨勢是基本一致的,各部位的泥沙沉積比例變化基本呈波動狀態,且三角洲與濱海區泥沙的沉積比例與來沙量密切相關,基本成正比關系; ( 3 )在口門處,影響泥沙沉淤的因素主要集中在潮汐頂托、口門逐漸加寬、河口門分汊、鹽水造成絮凝等,本報告主要對口門加寬,口門西妥理工大學工程碩士專業學位論文分漢對河道淤積的影響進行了定量分析: (一扣根據實測資料首次建立了河贖流路泥沙沉積分配的回歸計算式,據此可以預估計算河口不同區域泥沙的沉淤量; 、 5 )本項研究首次論證了河口三角洲岸線動態平衡的概念,並建立了黃河河口來沙量與造陸面積的相關關系,得出了當河口多年平均來沙量維持在3 . 45億t時其河口三角洲岸線則可能處于動態平衡狀態的重要結論; 『 6 )本項研究首次提出了河口泥沙優化調控的概念,並對其宏觀優化調控模式進行了初步探討。By the analysis and study, it is showed that : 1 ) the lower weihe river main channel was at a balanceable state between aggradation and degradation and floodplain of the lower weihe river is a tiny aggradation state before the construction of the sanmenxia dam ; 2 ) the severe aggradation of the lower weihe river bed is mainly caused by the increasing riverbed elevation at tongguan after the construction of the sanmenxia dam ; 3 ) the main reason leading to the increasing riverbed elevation at tongguan is the unreasonable operation of the sanmenxia reservoir ; 4 ) the rate of the riverbed aggradation at tongguan reach and the lower weihe river reach are speeded by adverse condition of incoming water and sediment recently
然後以實測資料為基礎分析研究了三門峽建庫前後潼關高程的變化規律以及渭河下遊河道的沖淤演變規律,分析研究表明:建庫前渭河下游主槽處于動態沖淤平衡狀態,灘地處于微淤狀態;建庫后,渭河下遊河道發生嚴重淤積主要是由於潼關高程的抬升造成的;潼關高程的抬升主要是由於三門峽水庫的不合理運用造成的,近期不利的水沙條件加劇了潼關河床的抬升速度和渭河下游的淤積。For studying the regulation rules of the sediment of the second phase project, and studying the reservoir capacity loss caused by deposition, the amount of sediment passing through the turbines, and the deposition and flow regime near the intake of the pump - turbines, the deposition of the reservoir was studied
為了研究蒲石河抽水蓄能電站二期工程泥沙調度方案,對多個方案的水庫淤積損失、過機沙量、取水口附近的泥沙淤積和水流流態,進行了水庫沖淤研究。In this paper, the deposition evolution process in qtx reservoir are studied, the incoming water and sediment, the operation data, and the time and space distribution of longitudinal and lateral sedimentation in reservoir are analyzed in detail, and the longitudinal scouring and sedimentation and lateral deformation law in reservoir tidal flat and mainstream under different operation way are summarized in every operation period
本文以黃河青銅峽水利水電樞紐工程水庫淤積演變過程為研究對象,對青銅峽水庫來水來沙組成、水庫運行資料、水庫縱橫向泥沙淤積時空分佈等進行了較詳細的分析,總結了青銅峽水庫各個運行時期不同運行方式下水庫灘槽縱向沖淤和橫向變形規律。According to the fact of the engineering, the optimal modeling when fenhe first reservoir operated alone are first made. after getting the regularity, in order to consider fenhe second reservoir that had been finished essentially and shanxi wanjiazhai yellow river diversion project, not only the object of minimum water shortage for satisfying the water use demanded mainly by user are founded, but also the object of minimum the reservoir deposition was found. in order to prevent the water use demanded by city and industry from excessively concentrated water shortage, the object of minimum water shortage required to be the equable shortage
本文在對來水分析基礎上,對太原市需水庫供水的用水進行了預測,結合工程實際,先對汾河一庫單獨運行時進行優化模擬,得出規律后,考慮已基本完工的汾河二庫及引黃南干工程,建立了以滿足用戶用水為主要目標的「缺水量最小」目標和減少水庫淤積的「水庫淤積量」最小的目標,其中「缺水量」最小目標要求是均勻的短缺,避免過分集中而影響了城市及工農業用水。The bank was formed by the mud and sand deposited here over a long period of time.
河裡的泥沙淤積在這里,年深日久便成了沙洲。Sedimentation and optimal operation of three gorge reservoir in yangtze river
永定河河口泥沙淤積對官廳水庫供水的影響分析The deposition of sediment in channels decreases the channel capacity and the flood-carrying capacity.
泥沙淤積在河道內,減少了河槽容量和泄洪能力。The characteristic of bed regulating is that the width and area of main channel and medium flowing channel increased greatly during the sustained silting period and decreased during scouring period
河道調整特點為持續沖刷時期主槽、中水河槽的河寬、面積都明顯增大,持續淤積時期則減小。Analysis of sediment deposition in chaershen reservoir
鳳鳴水庫庫區河段泥沙淤積分析分享友人