來沙量 的英文怎麼說
中文拼音 [lāishāliáng]
來沙量
英文
incoming sediment-
In order to reduce the re - deposit volume of the dredged channel, the method must be based on decreasing the oncoming sediment, changing the mouth site, builting the sediment control dam and raising the reservoir level
為了最大限度地減小疏浚挖槽的回淤量,必須依靠控制上游來沙量、調整入水口門位置、加設防淤堤及提高庫水位等手段,而不能通過調整挖泥槽寬度、位置及數量等措施來達到目的。The result reveales that the decrease of sediment transportation of the upper reaches results in riverbed scouring and coarsing on yidu reach ; the upper and lower shallow regions in shahong are separately deepened and broadened, while the thalweg in shihong is lowered, and nanyangqi is scoured and draw back … all the above may cause variation of the distribution pattern
結果表明,來沙量減少使宜都水道沖刷,沙泓上淺區沖刷下切,而下淺區以沖灘為主,石泓深泓沖刷下降,南陽磧沖刷縮小,分流格局有發生變化的趨勢。Through the analyses of characteristics of gully thalweg and soil erosion in upland and gully land, sediment sources in small watershed, sediment yield relationship between upland and gully and ecological functions of vegetation corridor, it is considered that vegetation corridor combined with land preparation measures may block runoff and sediment from upland and reduce the amount of soil erosion in a watershed by 54. 5 % ~ 77. 0 %
摘要在分析黃土高原地區的溝沿線、溝沿線上下溝間地和溝谷地土壤侵蝕特徵、小流域泥沙來源、坡溝侵蝕產沙關系的基礎上,結合廊道的生態功能和以往的研究結果,認為在溝沿線的上部建立草灌與整地工程措施相結合的植物廊道,來攔蓄阻截溝間地的來水來沙,可使流域的土壤侵蝕量減少54 . 5 % ~ 77 . 0 % 。Both discharge, discharge process, sediment concentration and sediment process changed with the continuous inflow of anabranches down the river
支流的沿程匯入改變了幹流的水沙條件,包括流量、流量過程、含沙量及來沙過程。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。According to all the sediment peaks of 35 floods observed at each station on the downstream of xiaolangdi, it analyzes the characteristic of delayed sediment peak and establishes a regression equation between sediment peak lag time for each section of xiaolangdi, huayuankou, jiahetan, gaocun, sunkou, aishan and lijin and peak discharge, sediment concentration of the peak, flood propagation velocity and fall velocity of suspended load of the previous station, which can search, make up and extend sediment peak lag time and provide a basis for accurate forecasting on sediment peak travel time of each station on the lower yellow river
根據小浪底下游各站沙峰均滯後於洪峰的35場洪水,對沙峰滯後於洪峰的特性進行了剖析,建立了小浪底、花園口、夾河灘、高村、孫口、艾山、利津各河段沙峰滯后時間與上站洪峰流量、沙峰含沙量、洪水傳播速度、懸移質泥沙群體沉速之間的回歸方程,可以用來查補延長沙峰滯后時間,為下游各站沙峰傳播時間的準確預報提供依據。A large area of bare sandland distributed in beijing and its surrounding areas is one of sand source areas which contributes to high - frequent sand storms in beijing in recent years, whereas increasing of surface coverage condition is one of effective measures to lessen local blown - sand activities
摘要北京及其周邊地區分佈的大量裸露沙荒地是北京近年來沙塵暴頻發的主要沙源之一,而增加其地表覆蓋狀況則是遏止就地揚沙起塵的有效措施之一。Ii ) runoff erosivity reflects relationship of water erosion forces and sediment yield more directly than rainfall erosivity. it intergrated ability of runoff volume and flood peak on detaching soil and transporting sediment and is more reasonable than single runoff depth or flood peak volume
( 2 )以徑流侵蝕力代替降雨侵蝕力來反映水蝕營力與產沙量的關系更加直接,而且綜合了徑流量與洪峰在剝蝕土壤和搬運泥沙能力,比單獨運用徑流深或洪峰流量更加合理。The paper analyzes and summarizes the following laws of distinctive sediment yield produced in storm floods of the region based on predecessors ' study : storm is the main dynamic force of erosive sediment yield and storm, flood and sediment exist an inevitable relation ; the flood occurring time is concentrated with high peaks and huge volume, suddenly rising and suddenly falling and has decisive influence to the formation of a major flood peak in the middle yellow river ; the main reasons of concentrated coarse sediment of the river is severe erosive sediment yield, strong sediment transporting capacity and high sediment concentration ; the important influence of frequent or continued storm floods happened in he - long reach especially in coarse sediment concentrated region to the sediment transport of the yellow river and ; along with the increase of harnessing, regional flood trend is becoming smaller but the variation of sediment quantity is not obvious and the reaction of peak discharge and flood runoff of majority tributaries are not sensitive, showing that a general and normal engineering works can not effectively control regional major floods especially the sediment of an extraordinary flood
摘要在前人研究的基礎上分析總結了該區特有的暴雨洪水產沙規律:暴雨是侵蝕產沙的主要動力,暴雨、洪水、泥沙之間存在著必然的關系;洪水發生時間集中,峰高量大,暴漲暴落,對黃河中游大洪峰的形成具有決定性影響;侵蝕產沙強烈而粗泥沙集中,輸沙能力強,洪水含沙量高,是黃河粗泥沙的集中來源地;河龍區間特別是粗泥沙集中來源區頻繁或連續的暴雨洪水對黃河輸沙有重要影響;隨著治理水平的提高,區域洪水有減小趨勢,但泥沙量變化不明顯,大部分支流的洪峰流量、洪水含水量反應不敏感,說明一般規模和水平的治理工程還不能有效控制區域大洪水特別是特大洪水的泥沙。Analysis of water and sediment materials from main hydro - stations in the upper reaches of the yellow river in qinghai province showed that, the area in the upper reaches of the yellow river was only 23. 4 % of the total yellow river basin, while its runoff was 47. 5 %, and sediment yield was only 3. 86 % of that of the whole basin, so it was a major area of water production and supply
利用青海境內黃河上游主要水文測站的資料,對境內水沙來源及組成進行了分析,認為該區面積只佔黃河流域面積的23 . 4 ,而徑流量佔47 . 5 ,輸沙量只佔3 . 86 ,是黃河的主要產流區和水量供給地之一。The result shows that annual rainfall in the 15 coming years will increase by about 6 %, annual rainfall fluctuation will increase and rainfall concentration in a year tends to increase, which will make flood and sediment increased
結果表明:未來降水量比多年平均值增加6 %左右,且年際波動性增大,年內分佈更加集中,洪水量和輸沙量有增大的趨勢。On the one hand, the sediment density current often does a great harm to the reservoir, and causes a big loss of reservoir ' s storage capacity or makes reservoir severe deposition ; on the other hand, sediment outflow by density current is an effective measure to mitigate sedimentation
異重流(本論文中主要指因含沙量的差異而形成的渾水異重流)一方面常常給水庫帶來嚴重的危害,加速水庫的淤積和庫容的損失;但另一方面它又為水庫排沙提供了一種極為有效的途徑? ?水庫異重流排沙。We can reach a conclusion, firstly, the gross water capacity, gross sediment capacity and zhang jia shan station of jing - river and xian yang station of wei - rever increase but deposit ratio of lower wei - river decrease. secondly, the sediment deposit of lower wei - river increase in pace with the crease in of sediment from the two station and the level rising of chen village
結果表明渭河下游淤積比隨著涇河張家山站和渭河咸陽站的總水量、總沙量和水流量的提高而降低;渭河下游淤積量隨兩站來沙量的增加,陳村水位的抬高而增加。When xiaolangdi project completed and put into orperation, the inflow of water and sediment condition will be changed because of the regulation of the reservoir. especially the initial 14 years, the reservoir will hold up sediment and release clear water, which may affect the river sections in henan province, especially the wandering sections. it will result in changes of flow state and endangering the water works, because the longitudinal addend by scouring and lateral slope failure
小浪底水庫建成運用后,通過水庫的調水調沙,改變了黃河下游的來水來沙條件,尤其是運用的前14年處于攔沙期,下泄清水,對河南河道的影響最為劇烈,對游蕩性河段的河勢變化將產生很大影響,河道縱向沖刷下切,橫向灘岸坍塌,工程出險將大量增加。Incoming sediment variability analysis and sediment depositing calculation in the main river channel of the dongjiang basin
東江幹流河道來沙量變化分析及泥沙沉積量計算The paper calculates the volume of scour and fill of the inner mongolia section of the yellow river respectively through the observed data of cross sections, coming sediment and variations of water level with same discharge and the results are basically the same
摘要通過實測斷面資料、來沙量資料和同流量水位的變化等,對黃河內蒙古河段的沖淤量分別進行了估算,其結果基本一致。The water channel was dredged to remove sediment and restore the proper depth of water. deep bay and mai po receive large amounts of sediments from the pearl river estuary. some of this sediment settles onto the mudflats, but a lot is brought into our
米埔位於珠江河口,每年珠江河為后海灣及米埔帶來大量的沙泥,部份沉積在泥灘上,大部份則隨著基圍水閘操作流入基圍,在水道沉積,令水道變淺。The kingdom ' s survival depended invariably on its being bankrolled by outside powers ? at first the british, then the americans, sometimes ( for too long ) iraq, occasionally the saudis
約旦王國的生存總是依賴著外來力量的資金援助? ?起初是英國,接著是美國,有時是伊拉克(援助了很長的時間) ,偶爾沙烏地阿拉伯也伸出援手。Based on analysis of chaos characteristic of sediment discharge time series, bp neural networks model based on chaos phase space is proposed to forecast the sediment discharge through embedding dimension
在對輸沙量時間序列混沌特性分析的基礎上,利用嵌入相空間來確定前期影響因子,建立了基於混沌相空間技術的bp神經網路模型。This paper was set out from the analysis on depth changes and evolvement of washing out and filling out in mawei of fuzhou harbor, the evolvement characters of harbor basin were summed up. there is no relationship between the flow and sediment rate from upper reach and sedimentation, which was closely linked with flow changes and caused directly by tramquill flow under the secure of dama reef
( 2 )通過對馬尾萬噸碼頭港池沖、淤演變以及與洪枯季節關系分析,認為港池的沖淤變化與上游來流量及來沙有一定關系,但更主要的是受碼頭附近河道局部水流條件的影響,後者是造成港池淤積的主要原因。分享友人