water shaft 中文意思是什麼

water shaft 解釋
排水井
  • water : n 1 水；雨水；露；〈常作 pl 〉 礦泉，溫泉；藥水。2 〈常 pl 〉水體；水域；水道；海；湖；河；海域；...
  • shaft : n 1 箭；箭桿。2 （槍、槌、斧等的）柄；矛。3 【植物；植物學】稈；莖；柄。4 【動物；動物學】羽軸；...
  1. Technical research on adjusting shaft water with goaf water

    利用老空區調控礦井水技術
  2. Excavation method for inclined shaft excavation in headrace tunnel at zipingpu water conservancy project

    紫坪鋪工程引水系統復雜地質條件下洞群進洞技術
  3. Construction of a 1000m plus deep shaft in a high temperature and heavy water flow environment

    大涌水高溫條件下千米深井的施工實踐
  4. Mechanized shaft kiln internal water charging technology

    機立窯實施窯內加水技術
  5. Using a vortex - flow drop shaft to convey water from a high level to a diversion runnel under the condition of high water - head and large discharge is a new kind of technology in the scheme of reusing a diversion tunnel as a discharge tunnel

    近年來，為解決高水頭、大流量導流洞改建泄洪洞的技術難題，旋流式豎井泄洪洞逐漸成為研究熱點之一。但迄今為止，該技術尚未得到推廣應用，其主要原因在於人們對豎井螺旋水流運動特徵缺乏足夠的了解和深入的研究。
  6. Grouting and water sealing technology for mine shaft sinking through water flooded goaf

    井筒過積水老空區的注漿堵水技術
  7. Back grouting and water sealing technology for mine auxiliary shaft lining in shoushan no. 1 mine

    首山一礦副井井筒壁后注漿堵水技術
  8. 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。
  9. The corrosion current and impressed against - corrosion current of a ship modulated by shaft ' s rotation will generate an extremely low frequency electric field ( elfe ) which becomes a kind of important characteristic signal in sea water

    摘要艦船的腐蝕和防腐電流經螺旋槳轉動的調制后在海水中會?生極低頻電場，成?一種重要的特徵信號源。
  10. This paper analyses the stress and deformation of the two lining structure types of the surge shaft surrounded with crush rock under the action of high water pressure by using fem, compares the two lining types ' s merits and demerits in stress, deformation, fracture state, the combining bearing of surrounding rock and lining structure, the safety and economics

    本文針對圍巖條件比較破碎，裂隙發育的調壓井洞室結構，就兩種襯砌結構型式分別進行了高水頭作用下的有限元數值模擬，從調壓井襯砌結構選型角度分析對比了兩種襯砌結構型式在圍巖及襯砌結構應力與變形、襯砌結構鋼筋混凝土開裂、圍巖與襯砌結構聯合承載、結構安全儲備、經濟等方面的優劣。
  11. A kind of measurement was developed to measure the air concentration of water and the result showed the possibility of entrained air existing near the wall of drop shaft. that is to say, the wall of drop shaft may be protected by entrained air from cavitation damage to some extent

    本文設計了一種適用於近壁區水流摻氣濃度測量的方法，對空腔段水流摻氣濃度進行初步測量，發現井壁附近水流存在摻氣的可能，這對改善水流空化條件能起到積極作用。
  12. Cement injection of perforating holes in a frozen pipe is a wholly - new technology for consolidating shaft wall rock and stopping water of frozen shafts in coal mines

    凍結管射孔注漿是在對石油輸油井射孔技術和地面注漿技術進行研究的基礎上，開發出的一種用於煤礦凍結井筒圍巖加固和堵水的全新技術。
  13. Abstract : cement injection of perforating holes in a frozen pipe is a wholly - new technology for consolidating shaft wall rock and stopping water of frozen shafts in coal mines

    文摘:凍結管射孔注漿是在對石油輸油井射孔技術和地面注漿技術進行研究的基礎上，開發出的一種用於煤礦凍結井筒圍巖加固和堵水的全新技術。
  14. Based on the comparison of the restoring features of several common journal dimensions and in accordance with the shaft wearing character of large water pump, the treatment technique applying brush coast and hot spraying was discussed

    摘要在比較幾種常用軸頸尺寸修復特點的基礎上，根據大型水泵軸軸承位磨損特徵， ?述了採用電刷鍍和熱噴塗處理技術修復水泵軸的工藝方法。
  15. Treatment for grouting in the water gushing zone of inclined shaft

    松南隧道涌水地段的綜合整治
  16. Prediction of quaternary aquifer water inflow in mine shaft of liliangdian

    李糧店第四系井筒涌水量預測
  17. A water power generating facility makes use of the energy difference between two different levels of flowing water by transferring the water from natural bed of the stream at the higher level to the bed at the lower level and effectively extracting its potential energy, which is then made available at the rotor shaft for further use

    通過利用河流中不同水位之間的能量來驅動螺旋泵的轉軸，在將高水位的水流輸送到低水位的過程中汲取水流中儲存的能量，將其轉化成電能。
  18. The effect of variation in surge shaft section size upon the reflection of water hammer pressure and the speed of quality fluctuation attenuation

    調壓井斷面尺寸變化對水錘壓力反射及質量波動衰減速度的影響
  19. Comprehensive administration for shaft crevice water in liujia coal mine

    六家煤礦立井筒孔裂隙水的綜合治理
  20. Catastrophic analysis on the thickness of consolidation for the water retarding formation at the bottom of shaft above the loaded water body

    承壓水上井筒底板隔水層加固厚度的突變分析
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