水幕壓力 的英文怎麼說
中文拼音 [shuǐmùyālì]
水幕壓力
英文
water curtain pressure-
The finite element analysis of 3d seepage field for surrounding rock mass of cavern groups of underground powerhouses was performed based on the nodal virtual flux method for solving the non - pressure seepage field and the improved drainage substructure technique for accurately simulating the complex seepage behaviors of densely distributed drainage holes, with emphasis placed on the seepage properties of the anti - seepage concrete curtain and drainage curtain in the anti - seepage and drainage system
摘要在求解無壓滲流場結點虛流量法的基礎上，結合可精細模擬密集排水孔復雜滲流水力行為的改進排水子結構技術，付某地下廠房廠區洞室群圍巖區三維滲流場進行了有限元求解分析，著重研究了防滲排水系統中的帷幕和排水幕的滲流特性。The plane - wave analytic solution of the coupled fluid - air - solid system and the fem model of air cushion isolations are applied to study the influence of air cushion on earthquake response of dams. the calculations show that air isolation will reduce the hydrodynamic pressure significantly and restrain the dam vibrations during earthquakes. if the dam and reservoir is isolated by air cushions, it will decrease the hydrodynamic pressures by more than 90 % and the seismic stresses by 20 - 30 %
將本文首次提出的水體-氣體-結構系統的平面波作用理論解和三維有限元模型，應用於溪洛渡雙曲拱壩的抗震安全性和氣幕隔震可行性研究中，表明氣幕對高拱壩具有良好的隔震性能，可降低動水壓力90以上，壩體地震拱應力20 30 ，減震效果顯著，並使壩體的抗拉安全系數從0 . 93提高到3 . 58 。Curtain walling - watertightness - laboratory test under dynamic condition of air pressure and water spray
幕墻.水密封性.空氣壓力和水噴射動態條件下的實驗室試驗Boring, grouting and finally forming an impervious curtain in the rock mass with cracks, that is one of the most popular methods of the foundation seepage control at hydraulic and hydroelectric engineering
採用鉆孔水泥灌漿封堵巖體中的縫隙而形成阻水帷幕，達到減少滲漏量和降低滲透壓力的目的，是水利水電工程基礎處理的重要手段之一。The distance of the single - row curtain grout hole is between 1. 4 to 1. 8 meter, and 2. 0 meter is suitable for the double - row curtain ; the grouting pressure generally is 1. 0 to 1. 5 mpa at the first three grout compartment, then grouting pressure of under the fourth control in 4 to 5 mpa ; for mast grout compartments, a water - cement ratio of 2 or 1 may used in the first grouting
鉆孔密度也由原來的0 . slm / mz降至o . 64n擴mz ，節約工程投資447 . 35萬元。 6 、單排帷幕的孔距在1 . 4一1 . 8m之間，雙排帷幕的孔距以zm為宜;灌漿壓力在地表以下前三段一般為1一1 . smpa ，第四段以下按4一smpa控制;對大部分孔段而言，開灌水灰比可定為2或1 。Through analyzing the seepage observation data of huangtankou concrete gravity dam, foundation seepage behavior are reasonably evaluated. the reason of seepage force rising of individual monolith is impervious elements " flaw and drain holes " block. 4
分析黃壇口大壩壩基滲流監測資料，正確評價了壩基防滲排水系統的工作狀態，指出了個別壩段滲透壓力升高是由於壩基防滲帷幕缺陷和排水孔被堵造成，為工程加固提供了科學依據。The hydrodynamic pressure is reduced for 70 % with air cushion isolation
模型實驗所得氣幕隔震后，動水壓力降低70 ，與計算結果基本符合。分享友人