壩面 的英文怎麼說
中文拼音 [bàmiàn]
壩面
英文
dam facing-
To use the athwart gradient protection which takes the end of dam as the datum mark will reduce the digging depth of the stilling basins is reducing, and increase the energy dissipation rate
採用以壩體末端為基準面的壩體逆坡防護時，消力池挖深減小，消能率提高，壩面平均流速減小，壩區防護難度降低。( 1 ) it was found from the obtained results that increasing of flux will led to decrease in froude no. of the following water at the shrinking section which will reduce rate of disspated energy, this will make the protection of dam surface more difficult
主要結論如下;隨著流量的增加，消力池收縮斷面弗勞德數減小，消力池的消能率減小。壩面平均流速增大，壩面的防護難度增加。The typical velocity field and the pressure on the step surface of the stepped spillway are measured using the laser doppler anemometer and the piezometer tube respectively
採用多普勒激光測速儀和測壓管分別對階梯溢流壩面典型速度場和階梯表面壓力進行詳細測量。Stress and deformation of computational analysis is usually not in conformity with actually observed data due to this reason in fem analysis of earth dam and crfd such as the extensively applied duncan - chang hyperbolic model, and many other models also equally have similar problem
如應用廣泛的duncan ?張模型在土壩、面板壩有限元應力變形計算分析中就存在與實際觀測值不一致、不合理的結果，許多模型也同樣存在類似的問題。By the three dimensional numerical simulation of a project case, the distribution of pressures, turbulence kinetic energy and turbulence dissipation rate in the gentle slope spillway overflow are obtained
通過對工程實例的三維數值模擬，得到了緩坡階梯壩面上的水壓力、紊動能和紊動耗散率的分佈規律。Application of distributed optical fiber temperature sensing technology to leakage monitoring for rock - fill dams with face slabs
分散式光纖溫度傳感技術用於面板堆石壩面板滲漏監測Effect of unsymmetrical solar thermal radiation on thermal stresses of high arch dams
左右岸日照差異對高拱壩下游壩面溫度應力的影響The result show that the position of free surface is higher because of frusta of brake, especial obvious in the head of frusta of brake ; flux coefficient and pressure on dam are quite influenced by type of frusta and 3 a type frusta of brake relative to 2 type frusta of brake has bigger flux coefficient and smaller pressure on dam ; obvious influence of ability of discharge flow for different ratio of thickness of frusta and breadth of brake and pressure on dam reduces with increasing ration of thickness of frusta and breadth of brake, while bigger flux coefficient is obtained when tlb = 0. 2
結果表明，閘墩河海大學博士論文的存在抬高了水面線的位置，其中在閘墩頭部尤其明顯;墩型對流量系數和壩面壓力影響較大， 3a型閘墩相對於2型閘墩具有更大的流量系數和更小的壩面壓力:不同的墩厚閘寬比t / b對泄流能力也將產生顯著的影響，隨著墩厚閘寬比的增加，壩面壓力降低，而當t / b二0 . 2時溢流壩具有更大的流量系數。Based on experimental result of energy dissipation and scour protection for downstream of spillway at yu jian kou power station, this paper discusses the flow characteristics, aerated characteristics of flaring gate pier for low dam pivot, the influence on pressure of dam surface and the result of energy dissipation for flaring gate pier. it is put forward to be an available method to solve the problems of energy dissipation and scour protection for depth of covering strata, poor geologic condition and weakness of resistance to scour capability under reasonable use of flaring gate piers and auxiliary dissipaters. thus, a new method is obtained for release of floodwater and energy dissipation of low dam pivot which are provided with low water head, great unit discharge and low froud coefficient. it may be used for reference for design and test workers
結合魚劍口電站壩下消能防沖試驗研究成果，對低壩樞紐寬尾墩的水流特點、摻氣特性、寬尾墩對大壩泄流能力和壩面壓力的影響以及寬尾墩的消能效果等問題進行了初步探討，提出了合理地使用寬尾墩結合輔助消能設施可有效地解決壩下覆蓋層深，地質條件差，抗沖能力弱的低壩樞紐的消能防沖問題，從而為具有低水頭，大單寬流量，低佛氏數特點的低壩樞紐泄洪消能開辟了一條新途徑，可供有關低壩樞紐設計與試驗工作者借鑒與參考Seepage inspection underwater and repair for upstream gate shaft in wanyao reservoir
碗窖水庫上游壩面閘門井水下滲漏檢查和防滲施工A method is set forth to calculate the hydrodynamic pressure influence matrix of elastic dam using series development and linear superposition theorem in this paper
利用級數展開和線性疊加原理，本文給出了一種求取彈性壩面動水壓力影響系數矩陣的數值演算法。Through the analysis and discussion for the simulation results, the energy dissipation mechanism of the stepped spillway is preliminarily made clear and some engineering measures for increasing the energy dissipation ratio are proposed, and some useful and practical conclusions are obtained
通過對計算成果的分析和討論，初步弄清了影響階梯壩面消能率的機理，並提出了增大壩面消能率的工程措施，得到了一些具有實用價值的結論。One of the main reasons of the step spillway having greater energy dissipation is that the potential energy of the flow continuously transforms to the kinetic energy along the spillway and the kinetic energy partially transforms to the turbulence kinetic energy, and the flow energy is finally dissipated by means of turbulence dissipation
研究表明，階梯壩面水流能量耗散較大的重要原因之一是由於勢能沿程不斷轉化為動能，而動能又部分轉化為紊動能，進而由紊動耗散的方式而消耗。The velocity profiles along the channel section are measured using the laser doppler anemometer. according to the velocity distribution, boundary shear and the coefficient of friction between the flow and rubber panel, is determined
採用多普勒激光測速儀對過流斷面的流速分佈進行了測量，並根據流速分佈推求出壩面上橡膠板所受的水流剪應力，和水流對橡膠板的摩阻系數。( 3 ) the roughness of the dam body has a little effect on the energy dissipation and erosion prevention
壩面糙率對圍堰和壩體的消能防沖影響不大。( 5 ) lowing down the dam body will reduce the digging deep of the stilling basin, decrease the velocity of flow on the dam body and cut the difficulties of
但下遊河床的沖刷加大，防護工作增加。降低壩體可以減小消力池的挖深，降低壩面流速和壩面的防護難度。( 6 ) 3d integer model of spillway and frusta of brake are established and numerical computation of 3d viscous flow over spillway is completed. the influence of frusta of brake for design parameters such as shape of free surface, pressure on dam, flux coefficient is computed aim at type of frusta of brake and disposal on dam and compute result of different type of frusta and disposal model is compared
6 ）通過建立溢流壩和閘墩的三維整體模型，完成了對三維過壩水流粘流場的數值計算，針對閘墩的型式及在壩面的布置計算了閘墩對水面線形狀、壩面壓力、流量系數等設計參數的影響，並將不同墩型與布置形式的計算結果進行比較。Abstract : a method is set forth to calculate the hydrodynamic pressure influence matrix of elastic dam using series development and linear superposition theorem in this paper
文摘:利用級數展開和線性疊加原理，本文給出了一種求取彈性壩面動水壓力影響系數矩陣的數值演算法。( 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。Numerical simulation of energy dissipator with new style flaring gate pier and stepped spillway
新型寬尾墩和階梯式溢流壩面一體化消能工數值模擬分享友人