水下堰 的英文怎麼說
中文拼音 [shuǐxiàyàn]
水下堰
英文
submerged weir-
According to the hydraulic property of overflow weirs under steady flow, the flow patterns of overflow weirs were classified into free overfall and submerged overfall, and numerical models for unsteady flow were established to simulate the two flow patterns respectively
摘要為了對保水堰的交替水流進行數值模擬,依據保水堰恆定流情況下的工作特性,將保水堰的水流形態分成堰流和滿流兩種狀態,分別建立保水堰不同流態下的非恆定流數學模型。During bank slope excavation in cofferdam in a harbor construction, the work had to be suspended due to water leakage ( river water and ground water ) into the foundation pit
摘要某碼頭工程在採用圍堰進行岸坡開挖過程中,受江水和地下水位的影響,基坑內有水滲入導致工程無法進行。Combining theory with practice, in this thesis, i analyses the content of the construction of steel round the barrage. such as, the structure of steel round the barrage, the arrangement of mooring, the calculation of mooring chain, the manufacture and assembling of steel round the barrage, the moving up connection and sinking of it, confining the bottom of underwater concrete
本文結合實際工程,詳細分析了鋼圍堰的構造、錨錠系統的布設、錨纜的計算、鋼圍堰的製作及組拼、鋼圍堰的接高與下沉、水下混凝土封底等圍堰施工的重要內容;並對常用的鋼套箱施工技術進行了討論。( 5 ) by analyzing the terrace in the lacustrine sediment of the ancient barrier lake, diexi, minjiang river, forming of the terrace is not only because of the intermittent arising of the tectonic movement, but also because of descend of the eroding normal covering resulting from destroying of the barrier lake
( 5 )通過對岷江疊溪古堰塞湖湖相沉積中的河流階地分析可知,階地的形成不僅僅是由於新構造運動的間歇性抬升作用,由於堰塞湖的潰決引起洪水下泄,導致河流侵蝕基準面的下降也可以形成階地。In the light of the low - lying pile cap foundations designed for main piers no. 2 and no. 3 of tianluo bridge on wenzhou - fuzhou railway. this paper describes the ways to resolve the construction problems of the foundations in deep water in sea and at seabed that is steep and without overburden, using the construction techniques of underwater rock blasting, steel cofferdam floating, positioning, bottom sealing and manual pile digging
摘要針對溫福鐵路田螺大橋2號、 3號主墩設計上採用低樁承臺基礎情況,介紹運用水下巖石爆破,浮運鋼圍堰就位、封底、人工挖孔樁等施工技術解決海上深水、河床陡峭且無覆蓋層的基礎施工難題。Concrete diaphragm wall is one type of underground continuous wall, which is adopted extensively in depending seepage for water conservancy and reservoir
砼防滲墻是地下連續墻的一種,在水利工程圍堰防滲、水庫防滲等方面廣泛地採用。This paper gives an account of the construction schemes of building artificial islands and sinking concrete cofferdams for shoal piers no. 53 and no. 59, and the construction schemes double - wall steel cofferdams for deep water piers no. 54 ~ 58 of hengyang xiangjiang river bridge on wuhan - guangzhou passenger dedicated railway
摘要介紹武廣客運專線衡陽湘江特大橋53號、 59號淺灘墩採用的築島、下沉混凝土圍堰施工方案,以及54 ~ 58號深水水中墩採用的雙壁鋼結構圍堰施工方案。Abstract : a brief introduction to scientific research in the three gorges project ( tgp ) and the applications of research achievements is given, which include treatment of newly slited layer on the foundation of the first stage earth - rock cofferdam, dumping bottom technique of river closure in deep water, construction of cut - off walls in the second stage earth - rock cofferdams, 3 - d computer simulation of river closure, concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete, deep sliding resistance and stability of the intake dam section, the section of the intake of the power station, the intake penstock of the power station, layout and hydraulics problems of shiplocks, stability of high slopes of shiplocks, and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700mw turbine generator units
文摘:介紹三峽工程的科研項目,綜述三峽工程開工以來的主要科研成果及工程應用情況,包括:一期土石圍堰基礎處理與施工技術;大江截流上下游土石圍堰平拋墊底研究;二期圍堰防滲工程研究;大江截流計算機科學管理;大壩混凝土澆築方案及主要施工機械選型;混凝土的原材料和耐久性優化試驗研究;大壩基礎深層抗滑穩定研究;三峽電站進水口型式研究;鋼襯鋼筋混凝土引水管道研究;蝸殼打壓、廠壩間伸縮節問題研究;永久船閘的引航道布置、輸水系統及水力學、高邊坡穩定、混凝土襯砌墻的結構與支護研究;特大型水輪發電機組的科學研究。A brief introduction to scientific research in the three gorges project ( tgp ) and the applications of research achievements is given, which include treatment of newly slited layer on the foundation of the first stage earth - rock cofferdam, dumping bottom technique of river closure in deep water, construction of cut - off walls in the second stage earth - rock cofferdams, 3 - d computer simulation of river closure, concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete, deep sliding resistance and stability of the intake dam section, the section of the intake of the power station, the intake penstock of the power station, layout and hydraulics problems of shiplocks, stability of high slopes of shiplocks, and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700mw turbine generator units
介紹三峽工程的科研項目,綜述三峽工程開工以來的主要科研成果及工程應用情況,包括:一期土石圍堰基礎處理與施工技術;大江截流上下游土石圍堰平拋墊底研究;二期圍堰防滲工程研究;大江截流計算機科學管理;大壩混凝土澆築方案及主要施工機械選型;混凝土的原材料和耐久性優化試驗研究;大壩基礎深層抗滑穩定研究;三峽電站進水口型式研究;鋼襯鋼筋混凝土引水管道研究;蝸殼打壓、廠壩間伸縮節問題研究;永久船閘的引航道布置、輸水系統及水力學、高邊坡穩定、混凝土襯砌墻的結構與支護研究;特大型水輪發電機組的科學研究。At first, i analyses the geological characters, and studies the procedure of the construction of deep water pile foundation of the highway bridges. then i put forward two programs of the construction in this condition : one is the construction of the steel round the barrage before the bore peg ' s, the other is on the contrary, and compare the shortcomings and the advantages of those
本文通過對巖溶地區公路橋梁深水樁基礎施工的地質特徵分析,研究了深水樁基施工程序,提出了在巖溶地質條件下先下鋼圍堰后施工鉆孔樁和先成樁后施工鋼圍堰的兩種施工方案,並對兩方案的優缺點進行了分析比較。For the structure that the side - frusta is also used as retain wall, considering the side frusta fastened on the weir body, the plane stress is calculated at first. then the moments, horizontal shear force and vertical force on the bottom of the retain wall are applied as fixate, and stress distribution on the weir body are calculated piecewise
對于邊墩兼作擋上墻結構,通常是將邊墩視為固端于巖體上,先進行下端為固端的擋墻平面受力計算,再將擋墻下部的彎矩、水平剪力和垂直力作為集中外荷載進行堰體的應力計算,堰體也只能分段進行片面受力計算。The labyrinth weir is a special kind of practical and effective weir patterns. it can evidently increase the discharge for a given outflow width
迷宮堰作為一種實用高效的特殊堰型,它在不改變泄水寬度的情況下,可大幅度提高過流能力。( 2 ) validate whether the crest elevation can meet the require of energy dissipation and erosion prevention during the beginning period of flood discharge. ( 3 ) calculate the altitude of downriver cofferdam, and make it meet the require of energy dissipation and erosion prevention. ( 4 ) calculate some average velocity of flow through some sections, including contracted section in stilling basins behind upriver cofferdam, if the hydraulic jump happen in lower reaches of the river. the program will calculate the average velocity of flow of contracted section and the length of the apron
主要設計內容包括:計算上游圍堰后消力池的尺寸;驗證泄洪初期壩面高程是否能夠滿足消能防沖需要;計算下游圍堰堰頂高程,使其滿足泄洪期圍堰和壩體過流的消能防沖和工程進度的需要;計算部分斷面平均流速,包括:上游圍堰后消力池中收縮斷面的斷面平均流速;壩首和壩末的斷面平均流速;當下遊河道發生水躍時,計算下遊河道的收縮斷面平均流速及需要鋪設護坦的長度。Through the analysis on the process of change claim on construction of temporary cofferdam for the downstream leading channel of jinghong hydropower station, the full process of how to make the application for change of construction project based on the change between the actual construction condition and the construction condition during bidding and how to realize the approval of the quotation of contract change is described herein for the construction enterprise, and then some viewpoints on the management and utilization of the relevant talent resources are put forward as well
摘要工程索賠是一項知識和技術面很廣,復雜而又系統性很強的工作,文中通過分析景洪水電站下游引航道圍堰變更索賠過程,說明施工單位如何根據實際施工條件和投標時施工條件的改變,提出變更立項申請,實現變更報價審批的過程,同時在人才資源的管理和利用上提出一些見解。6 diversion of the channels and cofferdams shall be used to minimize potential disturbance to water bodies, to limit adverse impact on water quality at downstream and to contain sediments
應把水道或圍堰改道,以減少對水體可能造成的擾動,以盡量避免對下游的水質造成不良影響及挖到沉積物。In this paper a date from some real projects are used to analyse the facors that will affect the energy dissipation and erosion prevention. such as flood discharge across the cofferdam, crest elevation, downriver cofferdam, roughness coefficient and the gradient of the surface of dam, and so on. in this paper, the program based on hydraulics is checkout by the tankeng waterpower project in zhejiang. the results prove that this program can be used to design any project where there is no obvious side shrinking phenomena
本文結合工程實際對影響圍堰和壩體消能防沖的各種因素,包括過堰流量、壩面高程、下游圍堰堰頂高程、壩面糙率、壩面坡度等進行了分析,並藉助水力學知識和計算機語言編寫了圍堰和壩體的優化計算程序,並利用浙江灘坑水電站工程對所提出優化計算程序進行了驗證,證明了該程序在沒有明顯的側收縮的影響下,計算結果與實際情況較為吻合。In harsh climate region, mere exists obvious local stress concentration near the upstream and downstream of the exposed - in - winter horizontal surface of the rcc dam, and the surface of spillway bucket though heat insulation is applied on the surfaces, tensile stress still exceeds the allowable one of concrete. this paper puts forward to adopt preset crack to avoid occurring more cracks. the special crack model is applied to simulate the dam preset crack, and the joint model of fracture mechanics is induced into strain - soften model
在結構措施方面,針對嚴寒地區高碾壓混凝土重力壩壩體越冬層面的上、下游面附近及溢流壩堰面反弧段表面有明顯的局部應力集中象現,在已採取一定的表面保溫防護的條件下,拉應力仍然超過混凝土容許拉應力,開裂難以避免,進而提出設置碾壓混凝土壩表面預留縫結構措施並對該措施進行深入研究,包括預留縫的擴展穩定和壩體沿預留縫的穩定性,以避免大壩在無措施部位開裂,解決大壩越冬層面水平施工縫的開裂問題。Application of underground grouted seep control curtain technique to water - repellent construction of soil and stone cofferdams for bridge foundations
地下錨固壓漿防滲帷幕技術在橋梁基礎土石圍堰防水施工中的應用In consideration of the hydrological and meteorological conditions, the construction characteristics, and the temperature control standard of rcc for cofferdams on upper and lower reaches and for right dam sections, an introduction was given to special temperature control and management measures adopted in rcc construction of longitudinal cofferdams at jinghong hydropower station during the high temperature period
摘要針對景洪水電站水文氣象條件、施工特點,以及上下游圍堰和右沖壩段碾壓混凝土溫度控制標準,介紹景洪水電站縱向圍堰高溫季節碾壓混凝土施工過程中採取的具體溫控措施,以及業主在溫控組織管理工作中採取的措施。分享友人