壩頂 的英文怎麼說
中文拼音 [bàdǐng]
壩頂
英文
crest of dam-
Like an iron bastion, the dam withstood the rushing floodwaters.
大壩好似銅墻鐵壁,頂住了洪水的沖擊。Based on the simulation model theory of temperature and stress fields presented in this article, a large simulating program for high rccd has been developed, which can numerically simulate all kinds of temperature control measures, including water pipe cooling, heat insulating in winter, reducing place temperature of concrete, spraying water brume, and long interval over - watering surfaces overflowing in flood season.
基於本文提出的溫度場和徐變應力場模擬模型理論,編制了高碾壓混凝土壩的三維有限元模擬計算程序,在程序中考慮了各種溫控措施的數值模擬,包括:水管冷卻、冬季保溫、降低混凝土的澆築溫度、夏季混凝土表面噴水霧、施工汛期壩頂面過水等。The effect of the support at the crest introduces in particular an inversion of the normal curvature of a free cantilever in free deformation.
特別是壩頂支承作用使一個自由懸臂梁的變形曲線。In the program, the effect of lamination placement, construction interval, elastic modulus change, thermal insulation change, surrounding temperature change, concrete creep and autogenous volume change on thermal stress are considered. and such temperature control measurement as water pipe cooling, heat preservation of the dam surface, the pouring temperature control, the overflow across the dam top during flood season can also be simulated by numerical method
該程序在編制過程中考慮了混凝土分層澆築、施工間歇、彈模變化、絕熱溫升過程、環境溫度的變化、混凝土徐變、自生體積變形等因素對壩體溫度場及溫度應力場的影響,同時也考慮了水管冷卻、壩體表面保溫、控制澆築溫度、施工汛期壩頂面過水等各種溫控措施的數值模擬。The dam of mania hydroelectric project is a soil - rock dam with spreading gradation soil of core wall. the height of the dam apices is 4261. 3m and the maximal height is 76
滿拉水利樞紐工程攔河壩為寬級配礫質土心墻土石壩,壩頂高程4261 . 3m ,最大壩高76 . 3m 。Based on the arch - cantilever method, the stability of arch ring and cantilever beam against elastic buckling in arch dams are analyzed with the theory of elastic stability, and the conclusion is drawn that the stability of arch dam against elastic buckling is governed by the top arch ring
按照拱梁分載法的思想,用彈性穩定理論分別對拱壩的拱圈和懸臂梁的抗屈曲穩定性進行了分析,得出拱壩的抗屈曲穩定性由壩頂拱圈控制的結論。Experimental research on crest spillway flood energy dissipation for the double - curvature arch dam
雙曲拱壩壩頂表孔泄洪消能布置試驗研究To stand on the three gorge dam, you could see at plate force of unequal than any other hydraupower plant on earth
站在三峽大壩頂上,你看到的是地球上最壯觀的水力發電站。In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material
本文首先根據散拋石壩損毀情況的現場調查資料,結合有關專家多年的整治經驗,總結出壩體的損毀原因及影響因素;對現有塊體穩定性的研究成果進行回顧和總結,並針對散拋石壩的直接損毀現象,結合山區河流的水流、地形特點,利用塊體粒徑與起動流速的關系,提出塊體穩定重量與起動流速高次方成正比的概念,流速50的增長可能導致塊體穩定重量接近40倍的變化;通過二維變坡水槽試驗,研究了壩體穩定的主要影響因素,包括塊體重量、壩頂水深、斷面尺寸、塊體材料(塊石和卵石兩種) 、護底等,結果表明對于山區河流,試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微;最後,根據西部地區的自然、經濟、交通等條件,提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施,以期取得良好的工程效果。Taking into account of water level and temperature, horizontal displacement monitoring control index of typical monolith of huangtankou concrete gravity dam is determined by the improved method of probability, which can be used as a reference for dam safety monitoring
綜合考慮水位溫度對壩體位移的影響,採用改進小概率法,擬定了黃壇口重力壩壩頂水平位移監控指標,為今後一定時段內大壩安全監控提供參考。Based on the control theory, the grey process model is built using the displacement of the dam crest and the stress of the dam heel, and the model can be used to analyze the structure behavior and stability of dams
基於控制論,建立了大壩壩頂位移和壩踵應力的灰色過程模型,並以此模型研究了大壩的結構性態。A bearing surface transmits the interaction between an arch dam and its foundation, the strength of which directly affects the constraint of the bedrock to the dam, and thus affects the stress and deformation of the dam. the influence is studied in this paper with nonlinear finite element method, as an example, for a high arch dam in design. the results show that the influence on stress is only limited within the local area near the bearing surface, larger on the maximum principal tensile stress than on the principal compression stress, and the decrease of the strength does not cause unlimited increase of the maximum stress. the influence on the displacement of the top of the dam is smaller than that of the bottom of the dam, especially the relative downstream displacement. at the lower strength of the bearing surface, the relative downstream displacement at the bottom of the dam increases with the decrease of the strength
建基面是傳遞拱壩和基巖相互作用的紐帶,它的強度直接影響基巖對壩體的約束,從而影響壩體的應力和變形.採用非線性有限單元法,以設計中的某高拱壩為例,分析建基面強度對壩體應力和變形的影響.結果表明建基面強度對壩體應力的影響僅限於建基面附近的局部范圍,對最大主拉應力的影響要大於對最大主壓應力的影響,建基面強度的降低不會無限地增大壩體的應力數值;建基面強度對壩頂位移的影響較小,但對壩底位移(尤其是順河向相對位移)的影響較大,當建基面強度較低時,壩底順河向相對位移隨建基面強度的降低而增大The dam was 2, 352 ft. long, 178 ft. high and spanned the whole of the shek pik valley. the base was 1, 200 ft. wide, and the top was 28 ft., wide enough to accommodate traffic
水塘的主壩橫越石壁谷,長2 , 355尺,高178尺,壩底寬1 , 200尺,壩頂寬28尺,可供汽車行駛。In the paper the initial iocation and dimension of step are studied from which we get the conclusion tha the energy dissipation is highcr if the initial location is at the curve section of l / 2 height of the spillway top and the dimension gap of neighbor step is bigger, the energy dissipation is higher
通過對階梯溢流壩的過渡階梯的起始位置和具體尺寸的試驗研究。得出過渡階梯的最佳起始位置約在壩頂曲線段1 2高度處且相鄰階梯的尺寸相差較大時,所得的消能率較高。The dam gantry crane design of xixiayuan counter regulate reservoir
西霞院反調節水庫工程壩頂門式啟閉機設計2. horizontal displacement variation rules according to water level and temperature are researched by analyzing that of huangtankou concrete gravity dam. 3
通過對黃壇口混凝土壩水平位移的變化過程分析,研究了壩頂水平位移隨水位、溫度等環境量的變化規律。Top soil masses of dam slope soak and produce wetting more easily than low soil of slope in spite of rainfall intensity
不管降雨強度如何,壩頂和壩坡中上部比坡體的中下部更容易受降雨浸濕。Contracted with the calculations of dam in rigid foundation, the frequencies are lesson and periods of dam are lengthened because of elastic restraint of foundation. and under earthquake load, the maximum displacement of dam top is larger
與剛性地基下壩體計算結果相比,由於地基的彈性約束作用,壩體的自振頻率降低,周期延長;且在地震荷載作用下,壩頂最大動位移增大。Abstract : the articles introduce the method of china and germany ; according to their conditions of natural geography environment and technique etc, to determine crest the elevation of earth dam
摘要:文章介紹我國及德國根據自然環境、技術條件採用的確定土壩壩頂高程的方法。After the engineering slope was dug, several small plastic zone the designed rock - fill dam will coming in the temporary slope, because rock - fill dam change the stress field on a small degree. but a gravity dam will arouse a great area of plastic zone in the permanent slope, which will bring a stability problem. after detail and depth study, the rock - fill dam project is more compatible of the engineering geology condition in nuozadu hydraulic - power station ' s dam site
工程邊坡開挖后,擬定的堆石壩方案由於嵌入淺,應力的調整有限,塑性區主要分佈在壩頂高程附近的較小范圍內;而擬定的重力壩方案,由於嵌入深,引起了一定程度的應力調整,邊坡巖體表層產生了鬆弛變形,塑性區主要分佈在壩頂高程到坡頂前緣(永久邊坡)的v ivb類巖體分佈區。分享友人