low strain 中文意思是什麼

low strain 解釋
低級應變
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • strain : vt 1 用力拉，拉緊，抽緊，扯緊。2 使緊張；盡量使用（肌肉等）。3 強迫，強制；濫用，盡量利用。4 拉傷...
  1. Nowadays, the ways to detect the piles are various, and all of them are limited in some aspects. for instance, coring test do large scathe on the piles, and static load test will waste much time, money and energy, while some ways are hard to operate as the limitation of the length and the diameter of the piles, and the special condition on the spots, such as high - strain, low - strain, and so on. furthermore, the result can only be gained under the complex analysis of the collected wave, and under the validation of the coring test

    目前，工程中常用的樁基檢測方法很多，但都存在著一些弊端：有的對樁破壞性嚴重，例如抽芯檢測；有的耗時、耗財、耗力，例如靜載荷試驗；還有的如低應變、高應變等檢測技術由於受到樁長、樁徑以及現場一些特殊情況的限制，操作很不方便，而且採集到的波形要經過比較復雜的處理分析方能得出結論，而這個結論卻還要輔助取芯手段加以驗證。
  2. It was observed, from experiments, that this alloy presented abnormal performance after undergoing low strain rate and high - temperature deformation. the flow stress reduced to only one percent of the yield point at room temperature and the elongation to fracture increase twice

    試驗發現： 480下ly12經歷低應變速率拉伸后，將其冷卻至室溫，性質會發生極大變化：流動應力只有普通室溫屈服應力的十分之一左右；延伸率比通常條件下增加一倍左右。
  3. Therefore, a new method - pile defect inspection using low strain pile gauge - is suggested in this paper, and a set of curve analysis method which have sound effect is obtained through a great deal of practices

    本文提出了使用低應變測樁儀檢查樁身缺陷的新方法，並通過大量實例總結出了一套曲線分析方法，通過實踐取得了較好的效果。
  4. The presence of small amount of liquid at grain boundaries tends to form thin viscous layer which surrounds the finer grains. intergranular fracture may occur at the grain boundaries between two fine grains not covered by viscous phases. the high ductility achieved at low strain rates is generally attributed to dislocation glide - creep accommodation mechanisms

    原始晶界上產生少量液相，形成薄的固液共存粘性層並包圍細化的晶粒，沿晶斷裂主要發生在無粘性層的細晶粒間；而在較低應變速率下，三叉晶界位錯攀援?蠕變協調機制鬆弛晶界滑移產生的應力集中，晶界上產生較多液相，有利於晶界滑移進行。
  5. Abstract : the results of hi - lo strain - gauge test on 9 dead - load testing piles are analyzed. the bearing strength of single piles is evaluated preliminarily by using high strain and low strain process and conditions for correlating dynamic and dead loads and technical factors affecting the test accuracy are discussed

    文摘:通過對一組靜載試驗樁高低應變動測結果的分析，對高應變法、低應變法檢測單樁承載力的可靠性作出了初步評價，並對動靜對比成立的條件及影響其測試準確性的一些技術因素進行了探討。
  6. The alloys, which were cold - worked followed by recrystallization annealing, display cyclic softening in the range of low strain because the cyclic stress - strain curve lies below the monotonic stress - strain curve, and show cyclic hardening in the range of high strain because the cyclic stress - strain curve lies above the monotonic stress - strain curve

    在低應變范圍，冷加工后經再結晶退火處理的錯合金的循環應力一應變曲線位於單調拉伸曲線的下方，表現為循環軟化;在高應變范圍則位於單調拉伸曲線的上方，表現為循環硬化。
  7. Application of low strain dynamic measuring technique by reflected wave method to pile foundation of standard embankment

    淺談應力波反射法基樁檢測的方法局限性
  8. From the point of kinematics and dynamics, the author analyses the propagation rules of stress waves in concrete, namely time - space relations, wave amplitude attenuation, dispersion effect and characteristics of transmission of reflected waves and acoustic waves. combining with engineering practices, the author also concluded the main points of low strain detection of integrity of longdiameter underwater cast - in - situ piles, and pointed out that comprehensive and relational utilization of reflected waves method and acoustic wave transmission method can accurately evaluated the integrity of pile shaft and then improve the reliability of detection. 6figs., 3refs

    從運動學和動力學角度，分析應力波在混凝土中的傳播規律：時空關系、波幅衰減、頻散作用以及反射波與聲波透射的特點，結合工程實踐，總結大直徑水下灌注樁低應變檢測的工作要點，指出綜合、合理運用反射波法與聲波透射法，可以較準確地評價樁身完整性，提高檢測結果的可靠性.圖6 ，參3
  9. During the low strain dynamic test of the foundation pile, the adoption of the velocity sensor to the direct measurement of the relative displacement of the pile head is helpful to reducing the improper dependence upon the measured intrinsic frequency valuesof the pile soil system in calculating vertical bearing capacity of the single pile, and is hence conducive to raising the accuracy of the calculated vertical bearing capacity of the single pile

    基樁低應變動測中，採用速度傳感器直接測出樁頭的相對位移，在推算單樁豎向承載力時，有助於降低對樁土體系固有頻率測定值的過分依賴，從而有利於提高單樁豎向承載力推算值的準確程度。
  10. Numerical experimental study on low strain test of foundation piles

    基樁低應變測試數值實驗研究
  11. A mathematical model of the vibration at the upper segment of a pile when there exist severe defects is put forward based on theoretical analysis, and the curve characteristics of its low strain test is described according to engineering practice under condition of transient shock

    摘要從理論上給出了當基樁存在淺部嚴重缺陷時，在受到瞬態激振力的情形下，樁體上段振動的數學模型，並結合工程實踐，描述了其低應變實測曲線的特徵。
  12. Abstract : a mathematical model of the vibration at the upper segment of a pile when there exist severe defects is put forward based on theoretical analysis, and the curve characteristics of its low strain test is described according to engineering practice under condition of transient shock

    文摘:從理論上給出了當基樁存在淺部嚴重缺陷時，在受到瞬態激振力的情形下，樁體上段振動的數學模型，並結合工程實踐，描述了其低應變實測曲線的特徵。
  13. Preliminary discussion on application of low - strain dynamic monitoring method to examining engineering quality of cement - earth piles

    低應變動測法在水泥土樁工程質量檢測中的應用初探
  14. Examples for misjudgment in inspection of pile quality by using method of reflection wave with low strain

    反射波法小應變樁身質量檢測中易誤判的幾種實例
  15. A study of waveform fitting technique in low - strain reflected wave method

    低應變反射波法波形擬合技術的研究
  16. Test of borehole cast - in - place pile quality through combination of low - strain reflection method and coring method

    低應變反射波法結合鉆芯法檢測鉆孔灌注樁樁身質量
  17. The electrical cut scanning mirror shows : this bilinear behavior results from different cracking ways under high and low strain amplitudes, that is, elastic cracking and brittle cracking respectively. cyclic hysteresis energy is an important fatigue parameter. the total cyclic hysteresis energy of gh4145 / sq increases gradually as strain amplitude goes from 1 % to 0. 5 %, but it decreases when strain amplitude is lower than 0. 5 %

    在高溫低周疲勞下， gh4145 / sq合金的循環滯?能具有如下特徵：在1 0 . 5應變幅范圍內，循環總滯?能是一個逐漸增大的過程，而當應變幅小於0 . 5時，總滯?能隨應變幅減小而趨于減小；半壽命處的循環滯迥能和總滯?能與壽命之間的關系曲線表現出雙線性特徵，轉折點對應0 . 5應變幅。
  18. Standard test method for low strain integrity testing of piles

    樁柱的低應變完整性測試的標準試驗方法
  19. Specification for low strain dynamic testing of piles

    基樁低應變動力檢測規程
  20. Low strain dynamic testing for special piles

    特殊樁的低應變動力測試
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