震動壓實 的英文怎麼說
中文拼音 [zhèndòngyāshí]
震動壓實
英文
vibratory compaction-
Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account
依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型，對中國古代木結構中的典型構造如：柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究： （一）通過木柱石礎靜摩擦試驗，測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反復荷載試驗和受壓試驗，測定了古建築木構件與木構件間摩擦系數，斗?抗側移剛度，斗?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。Taking the tokyo gao company as example, we introduced the real time shockproof system of high, medium and low pressure gas pipeline and some other systems, such as earthquake automatical blocking up system, earthquake warning system, radio remote monitoring and operation system, remote gas leak monitoring system
以東京煤氣公司為例，論述了高、中、低壓煤氣管網的地震實時防災系統?感震自動隔斷系統、地震警報系統、無線電遠程監視與操作系統、遠程煤氣泄漏監測系統。Driver ' s position : optimised layout, based on the latest ergonomic principles, considerably reduced vibration and noise, throunh insulating the operator ' s compartment from the vehicle itself by means of shock absorbes, seat adjustable to operator ' s height and weight, as well as being spring suspended and hydraulically damped. lindedouble pedal control system offers accurate reversing without. changing gear. linde central control lever operates all mast functions
駕駛室:根據人機工程學原理對駕駛室進行了優化設計.駕駛室與車身之間由減震墊隔離，大大地降低了震動和噪音，司機座下有彈簧和液壓減震裝置，並可根據駕駛員的身高和體重進行調整，以獲得最舒適的狀態.林德雙踏板控制系統具有無需切換即可實現靈敏向的功能:林德集中控制桿控制門架的提升，下隆和傾斜動作.發動機的轉速可根據提升和其它功能對輸出功率的需要而自動調節.護頂架與司機座聯成一體，並可裝配成舒適的全封閉駕駛室Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled
（ 2 ）利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究，通過分析正弦荷載作用下的試驗資料，驗證了粉土的孔隙水壓力增長模式的合理性；從微分方程推導了基於土體振動臺模型試驗的相似律，並從模型實體、孔壓時程曲線和相似律等方面做出了分析，得出了如下結論：在小型振動臺試驗中，模型箱中的粉土都發生了液化，液化的時刻和輸入加速度幅值有關，而對頻率的變化不太敏感；粉土在相當於8 9度地震烈度的加速度幅值作用下可能產生嚴重的液化；孔壓的增長曲線形狀與施加的荷載有關：當施加荷載為由小到大的形式時，曲線形狀為上凹的曲線；當施加荷載為等幅的正弦荷載或荷載幅值由大到小時，曲線形狀為上凸的曲線，且逐漸趨于穩定。Based on the foundation " liquefaction test study on the rapid railroad bed " supported by the railway department, some works on the liquefaction of silty soils have been carried out. in this dissertation, after making a short review of the works on seismically induced soil liquefaction, some research results are presented, which include the following contents. ( 1 ) depending on the dynamic triaxial test, the liquefaction strength of the silty soils is studied and two new models are proposed to evaluate the pore water pressure and the strain of the saturated silty soils during earthquake
結合鐵道部發展基金項目： 「高速鐵道液化土地基試驗測試研究」 ，本論文概括總結了地震液化的研究現狀，就滬蓉高速鐵路徐州段可液化場地粉土地基的液化特性問題開展了一些研究工作，內容如下： （ 1 ）提出了基於實用目的的粉土的孔隙水壓力增長模式和永久應變勢計算模型，並把此兩模型應用於場地的地震反應分析和地震液化性能的評價中；依靠循環振動三軸試驗技術，對粉土地基的地震液化強度進行了試驗研究；驗證了密實度是粉土液化的重要影響因素。( 3 ) p and s wave velocity and dynamic & static modul of sand rock in huanhua basin are the first time measured using " mts rock physical parameter testing system under formation condition " of " state key laboratory of oil and gas reservoir geology and exploitation ". at the same time, relationship between seismic response and oil & gas is discussed and summarized
（ 3 ）利用「油氣藏地質與開發工程」國家重點實驗室mts巖石物性測試系統，首次對黃驊坳陷砂巖進行了高溫高壓下的縱、橫波速度及動彈模量的測定，對黃驊坳陷砂巖的地震響應與油氣關系進行了分析和總結。In the paper, static and dynamic triaxial tests were conducted on fiy ash at shanmenxia longgou ash dam, and the static and dynamic parameters of fly ash were obtained. thirdly the 2 dimensions static analysis of the ash dam was conducted based on biot ' s consolidation theory and duncan ' s nonlinear stress - strain model. finally the plane dynamic behaviors of the ash dam during earthquake of intensity 7 were analyzed based on the exponent function model of excess pore water pressure aroused by earthquake, which is put forward in the paper, and equivalent visco - elastic dynamic fem model and principle of effective stress
本文結合實際工程，對三門峽火電廠龍溝灰壩的築壩粉煤灰進行了靜、動三軸試驗，確定了該壩粉煤灰的靜動力學指標；然後根據比奧（ biot ）固結有效應力原理，採用鄧肯（ duncan ）非線性應力應變模型，對該灰壩的二維靜力應力和變形狀態進行了分析；最後利用本文提出的地震超靜孔壓指數函數模型，採用等價粘彈性動力有限元方法，對該灰壩在地震作用下的動力穩定性進行了分析評述。Unsteady separated flow, produced during the gate - opening period in the reverse radial gate tunnel of a high - lift shiplock, is characterized by negative pressure and high velocity as well as their intense fluctuations in space and time and could easily result in various harmful phenomena such as cavitation, gate vibration and sonic boom, which have been observed and confirmed by prototype and physical model tests
高水頭船閘輸水反弧閥門開啟過程中，后廊道內發生急變分離流，負壓、高速水流以及壓力與流速的劇烈時空脈動變化容易誘發空化空蝕、門振和聲震等有害現象已被原型觀測和物理模型試驗研究證實。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。And a post - liquefaction test method has been put forward, in which the cyclic loading and the static loading courses are both controlled by stress mode. this method reflects the in - situ conditions well and truly, and a lot of tests have been done using this method. in these tests the effects of confining pressure, relative density, liquefaction severity etc. have been thoroughly investigated
主要工作內容如下：參與研製了振動扭剪全自動多功能三軸儀，並利用其獨特試驗功能設計了一套飽水砂土液化后特性的試驗方法，試驗過程中模擬地震作用的動加載過程及模擬大變形發生的靜加載過程均採用應力控制的方式進行，試驗方法跟現場條件更為接近並用該試驗方法對相對密實度、固結壓力、液化度等對液化后變形特性的影響進行了研究。After measurement of airway pressure, airway flow, and esophageal pressure, tachypnea was proved to be caused by ventilator autotriggering as a result of cardiogenic oscillation
在測量了呼吸道壓力、食道壓力以及氣流后，病人呼吸急促的原因證實為心臟震顫造成之呼吸器自發性驅動。The rule of the axial force distribution in the src column summarized, and a reasonable formula for the axial force level ’ s calculation in src column is offered for the design. besides, the aseismic analysis methods for the src structures are listed, and the dynamic time history analysis and static push - over analysis for the whole structure are done. the character of the earthquake response in this kind of structure is analyzed and some advice for actual design is proposed
同時分析了src柱中的軸力分配規律，給出了比較合理的src柱軸壓比計算公式;另外綜合敘述了適用於src結構抗震分析的方法，並且運用常用的設計計算軟體對整體結構進行彈性的動力分析和靜力彈塑性分析，得出src柱對結構的整體抗震性能有提高，可以在保證豎向承載力的同時增大整體結構的抗側能力，為以後的實際設計提供一定的依據。Based on a regress analysis of the results of 74 columns models from eight different tests, an empirical formula for calculating the residual shear strength of reinforced concrete bridge columns is derived. and compare the formula to them proposed by the current codes
通過對得自8次不同試驗的74根鋼筋混凝土墩柱模型試驗結果的回歸分析，最終建議了一種考慮軸壓比影響和延性水平影響的強震動下，鋼筋混凝土橋墩殘余剪切強度的實用計算公式，並與國內外現行規范公式進行對比。Soundless pressing cnc makes the punch, driven by hydraulic pressure, shift during the work cycles to achieve the process of soundless press, that is to say, the punch die gets close to the material fast, and it penetrates the material till the material breaks, then the punch springs back quickly to reduce noises and vibration and assure the high production efficiency at the same time
靜音沖壓cnc控制液壓驅動的沖頭在工作循環中變速，實現靜音沖壓，即凸模快速接近材料，接著緩慢進入材料直到斷裂完成，然後沖頭快速返回，以減少噪音和震動，同時保證了較高的生產效率分享友人