on-bottom stability 中文意思是什麼

on-bottom stability 解釋
在海床上的穩定性
  • on : adv 1 〈接觸、覆蓋〉上去；開（opp off）。 turn on the light [radio water gas] 開電燈[收音機、自來...
  • bottom : n 1 底，底部。2 地基，基礎；根底；底細，真相，原因，根源。3 （樹的）根干；（山）麓麓；〈方，常 pl...
  • stability : n. 1. 穩定，穩定性，穩度。2. （船等的）復原力。3. 鞏固；堅定，持久不變。
  1. Based on comparison of several technical schemes, the method of sand bedding pre - elevating and step water - filling pre - compressing is adopted. so the dissertation is consist of two parts : ( 1 ) the applicability study for the method of sand bedding pre - elevating and step water - filling pre - compressing, including numerical analyses for the thickness of sand bedding, the consolidation, settlement and stability of foundation, drainage, possibility of foundation liquefaction under seismic loading, et al. ( 2 ) monitoring at construction stage and checking the effect of foundation treatment, including the measurements of the settlement velocity and non - uniform settlement of ring beam under the tank, pore pressures and horizontal displacements in foundation, the pressure distribution at the bottom of oil tank and the strength increase of soils

    通過多種技術方案比較，最終選擇了技術先進的砂墊層預抬高分級充水預壓法，論文工作主要由以下兩部分組成： （ 1 ）砂墊層預抬高分級充水預壓法的適用性研究，其中包括砂墊層厚度、地基沉降與固結度、地基穩定性、降水、地震作用下砂土液化的可能性等方面的計算分析； （ 2 ）施工監測與地基處理效果檢驗，其中包括油罐環梁基礎沉降速率與不均勻沉降程度、各分級充水加載階段地基超靜孔壓與深層水平位移、油罐底板壓力分佈及地基土強度增長等方面的實測與數據分析。
  2. Abstract : a brief introduction to scientific research in the three gorges project ( tgp ) and the applications of research achievements is given, which include treatment of newly slited layer on the foundation of the first stage earth - rock cofferdam, dumping bottom technique of river closure in deep water, construction of cut - off walls in the second stage earth - rock cofferdams, 3 - d computer simulation of river closure, concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete, deep sliding resistance and stability of the intake dam section, the section of the intake of the power station, the intake penstock of the power station, layout and hydraulics problems of shiplocks, stability of high slopes of shiplocks, and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700mw turbine generator units

    文摘:介紹三峽工程的科研項目，綜述三峽工程開工以來的主要科研成果及工程應用情況，包括：一期土石圍堰基礎處理與施工技術；大江截流上下游土石圍堰平拋墊底研究；二期圍堰防滲工程研究；大江截流計算機科學管理；大壩混凝土澆築方案及主要施工機械選型；混凝土的原材料和耐久性優化試驗研究；大壩基礎深層抗滑穩定研究；三峽電站進水口型式研究；鋼襯鋼筋混凝土引水管道研究；蝸殼打壓、廠壩間伸縮節問題研究；永久船閘的引航道布置、輸水系統及水力學、高邊坡穩定、混凝土襯砌墻的結構與支護研究；特大型水輪發電機組的科學研究。
  3. A brief introduction to scientific research in the three gorges project ( tgp ) and the applications of research achievements is given, which include treatment of newly slited layer on the foundation of the first stage earth - rock cofferdam, dumping bottom technique of river closure in deep water, construction of cut - off walls in the second stage earth - rock cofferdams, 3 - d computer simulation of river closure, concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete, deep sliding resistance and stability of the intake dam section, the section of the intake of the power station, the intake penstock of the power station, layout and hydraulics problems of shiplocks, stability of high slopes of shiplocks, and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700mw turbine generator units

    介紹三峽工程的科研項目，綜述三峽工程開工以來的主要科研成果及工程應用情況，包括：一期土石圍堰基礎處理與施工技術；大江截流上下游土石圍堰平拋墊底研究；二期圍堰防滲工程研究；大江截流計算機科學管理；大壩混凝土澆築方案及主要施工機械選型；混凝土的原材料和耐久性優化試驗研究；大壩基礎深層抗滑穩定研究；三峽電站進水口型式研究；鋼襯鋼筋混凝土引水管道研究；蝸殼打壓、廠壩間伸縮節問題研究；永久船閘的引航道布置、輸水系統及水力學、高邊坡穩定、混凝土襯砌墻的結構與支護研究；特大型水輪發電機組的科學研究。
  4. The conical insulator high 15 cm, the diameter of top is 5cm and that of the bottom is 35cm. the insulator is operated for more 300 times on voltage more 600kv, and maximum voltage is 750kv. the operated is stability and no surface flashover phenomenon is happened

    錐形絕緣子高15cm ，錐底直徑35cm ，錐頂直徑5cm ，實驗結果表明滿足設計要求，在600kv以上工作300多次，最高電壓達750kv ，運行穩定，未發生沿表面閃絡現象。
  5. To guarantee the stability of the frame in strong earthquake motion, and on the basis of analysis on the concept of “ capacity design ” in the above three countries seismic design provisions, it is advised that the moment amplification coefficients at the bottom sections of columns for the frame structures in some seismic intensity be increased to reduce the possibility of the frame column yielding. taking the above three countries seismic codes as reference, it is recommended that it be added details of seismic design by using diagonal shear reinforcement to safeguard beams against sliding shear failure, when the positive - negative shear forces are reverse and the ratio is high

    為了保證在大震作用下框架結構的穩定性，借鑒國外規范「柱-梁承載力級差系數」的思想，本文提出了對部分抗震等級的框架結構的柱端抗彎能力增強系數應予以提高，以降低框架柱屈服的可能性;參照國外有關規范的發展，本文建議對于正、負剪力反向且比值較大的框架梁宜增加交叉斜筋，以防止沿垂直裂縫發生嚴重的剪切錯動。
  6. According to the selected project, a stability test with scale of 1 : 35 of cushion bottom had been done. with the research results of the experiments and the flow shape of xiao wan hydraulic power station were thought about, on the other hand, the ternary complex jet shape of baishan water cushion was analyzed, all this gave a base for the analysis of the force of the cushion bottom. through observation, the dynamic water pressure, the fluctuation pressure, the time - homogeneous pressure on the surface of the bottom and the characteristics of the fluctuation pressure could be got, also the calculation method and the test results were compared to get the argument

    針對選定的方案，進一步做了1 ： 35比尺的水墊塘底板穩定性試驗；通過試驗及借鑒小灣水墊塘內水流流態的研究成果，分析白山水墊塘內三元復雜淹沒射流流態，為水墊塘內底板受力分析打下基礎；通過觀測得到水墊塘底板動水沖擊壓力、脈動壓力、底板上下表面的時均壓力及脈動壓力特性，並通過計算方法與試驗成果進行相互比較論證。
  7. This paper focuses on a discussion of following issues through a combined of theoretical analysis and numerical calculation, and of theory - oriented, engineering analogy, experience and quantitative test. the stability analysis of slopes of deep foundation pit ; checking caculation of tensile breaking limiting condition of soil - nailing, grouting nail sheath anchored limit condition, rising of bottom of foundation pit and piping. measures are proposed for applying this method to slit stratification in disadvantage geologic

    本文介紹了土釘支護技術的發展及作用機理，並結合工程實例，採用以理論為基礎，重點研究探討了土釘支護在深基坑邊坡穩定分析、土釘抗拉斷裂極限狀態驗算、整體穩定性驗算、注漿釘包裹體錨固極限狀態驗算、基坑底隆起驗算、抗管涌驗算等方面設計計算方法，並提出了在其它不利地質環境中採用土釘支護應採取相應的措施。
  8. Stand up on the board, using the uphaul ( the thick rope or webbing which attaches from the front of the boom to the bottom of the mast ) for stability, and put your feet where your knees had been, on either side of the mast and over the centerline

    站在滑板上，利用升降索（從桅桿頂端到底端的那根粗繩子或帶子）保持平衡，雙腳放在剛才膝蓋的位置，也就是說桅桿的兩邊，並越過中心線。
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