水下豎井 的英文怎麼說
中文拼音 [shuǐxiàshùjǐng]
水下豎井
英文
underwater shaft-
Based on the equal strain consolidation model of sand drain, and neglecting the well resistance and the vertical drainage consolidation, a layered model for the nonlinear consolidation of sand drain, which accounts for the geostatic pressure varying along depth and the relationship between the average viod ratio and the logarithm of average effective stress, is presented
摘要基於砂井等應變固結模型，考慮初始有效應力沿深度變化，忽略井阻和豎向排水固結的影響，應用平均孔隙比與平均有效應力的對數關系，建立砂井非線性徑向排水固結的分層計算模型，並求得常荷載作用下的徑向排水固結解析解。Speed controls for traction include not only electrical vehicles of horizontal transportation such as electrical trains, internal - combustion locomotives with electrical transmissions, underground metros, light fait locomotives, trolley buses, even magnetic suspension trains and electrical cars etc., but also electrical vertical traction systems such as elevators, automatic moving staircases, mine winding engines, and gantry crane trucks etc
牽引調速既包括電氣火車、電傳動的內燃機車、地下鐵道、輕軌機車、無軌電車及磁懸浮列車和電動汽車等這類水平運輸電動車輛，也包括電梯、自動電梯、礦井卷揚機和龍門吊車等電動豎直牽引系統。In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively
本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。After analyzing the adaptability of molepipe drainage, an underground water table regulation is given out. finally, the efficiency of the drainage technique is determined after its comparison with gutter drainage and vertical drainage, and deep research on the effect of molepipe drainage on water table in a typically selected area
對暗管排水的適應性進行分析，提出了灌區地下水調控標準，與明溝排水和豎井排灌相比較，對暗管排水典型區調控地下水位的效果進行深入的分析研究，以確定這一排水技術的效果。Laying under water in silo or occasions that can
固定敷設在水下豎井或要求能承受拉力的場所Some key subjects of numeric analysis were discussed such as : selecting principles of constitutive equations of soft clay, the equivalent theory of vertical drains ground, the definition of load step, the determination of vertical drains as well as the treatment methods of the decline of groundwater level, sealing wall and nearby water source
著重論述了真空預壓加固地基數值分析中對土體本構方程的選擇、砂井地基等效轉換、分析荷載步的確定、豎向排水體的界定、地下水下降的處理、密封帷幕的處理、附近補充水源的處理等問題。Construction of underground powerhouse access shaft of taleghan hydropower and water conservancy project in iran by use of multiple shaft slide forms
伊朗塔里干水利樞紐地下廠房交通豎井多井滑模與施工Means any place in which, by virtue of its enclosed nature, there arises a reasonably foreseeable specified risk, and without limiting the generality of the foregoing, includes any chamber, tank, vat, pit, well, sewer, tunnel, pipe, flue, boiler, pressure receiver, hatch, caisson, shaft or silo in which such risk arises
指任何被圍封的地方，而基於其被圍封的性質，會產生可合理預見的指明危險，在不局限於這個一般性的原則下， 「密閉空間」包括任何會產生該等危險的密室、貯槽、下桶、坑槽、井、污水渠、隧道、喉管、煙道、鍋爐、壓力受器、艙口、沉箱、豎井或筒倉。Horizontal well technology, have another name called the well technology of radiation, sets up perpendicular well in the precipitation place, and direction horizontal well in the different degrees of depths of perpendicular well, make groundwater pass the horizontal well to flow into the collect water perpendicular well, take water out with the water pump again, in order to achieve the goal of reducing the groundwater
水平井技術，又稱輻射井技術，是在降水場地設置集水豎井，于豎井中的不同深度和方向打上水平井點，使地下水通過水平井點流入集水豎井中，再用水泵將水抽出，以達到降低地下水的目的。分享友人