豎井排水 的英文怎麼說
中文拼音 [shùjǐngbèishuǐ]
豎井排水
英文
drainage by vertical well-
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。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。Abstract : in this paper, designs for foundation pit drainage, concrete pouring as well as side wall form, etc in shaft well construction are discussed
文摘:介紹了豎井施工中有關基坑排水、混凝土澆築以及側壁模板等設計問題。The simulation tests were carried out to study the variation of the vertical additional force acted on shaft lining by surrounding soils during dewatering of alluvium by means of multi - function rig in vertical shaft
摘要利用大型豎井模擬試驗臺，對沖積層疏排水過程中立井井壁受到的豎直附加力的變化規律開展了模擬試驗研究。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。From the point of view of the practice, there are some concerned problems as for the embankment improved with prefabricated band drains ( pvds ), such as the forecaste of the height & width from the influence of deformation and etc. in this paper, associated with the test embankment of ningbo ( nb ) expressway, these problems are analyzed by finite element method ( fem )
本文通過考察運用豎井地基排水固結法進行插塑板處理高速公路試驗段的變形情況，結合有限元計算，從筆者所關心的部分問題及視角去考察分析，整理出了一些規律及結論，並用於由地基變形引起的高度及寬度問題的計算預測及施工控制。According to calculations, it was necessary to adopt a new type of structure of the shaft lining with vertically yieldable segments for reason of safety
分析計算表明：應採用豎向可縮新型井壁結構防止井壁因沖積層疏排水而破壞。分享友人