vacuum preloading 中文意思是什麼
vacuum preloading
解釋
地基處理真空預壓- vacuum : n （pl vacuums vac ua ）1 真空；空處，空虛，空白。2 〈美口〉吸塵器（＝ vacuum cleaner）。vi vt 〈...
- preloading : 初始負載
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Through analyzing the requirement of sea reclamation project, this paper expatiates about the application of vacuum preloading drainage consolidation method in large - scale sea reclamation project
摘要從填海造陸工程的要求出發，闡述真空預壓排水固結法在大型填海造陸工程中的應用。 -
Abstract : the paper describes the application of vacuum preloading in combination with surcharge preloading to improve soft soils for la rge working load in the storage area of phase of nanjiang coal terminal of ti anjin port. analysis is made on the result of the improvement and it is concluded that the technique of vacuum proloading in combination with surcharge preloadin g can be used to improve soft soils for large working load and the result can be remarkable
文摘:本文介紹了大使用荷載條件下真空聯合堆載預壓技術在天津港南疆煤碼頭堆場（二期）軟基加固工程中的應用情況，並對加固效果進行了詳細分析，得出了大使用荷載條件下可採用真空聯合堆載加固軟基且加固效果明顯的結論。 -
Based on the results of testing site, some problems of vacuum preloading was analyzed by plane strain finite element method. the relative stable seepage velocity field can be produced with the pumping time. the depth of negative pore - water pressure transferring increases with the pvds length
最後，對真空聯合堆載預壓的施工工藝進行了研究，提出了在真空聯合堆載預壓的中期，出水量已相對較少，可適當減少開泵量，並可採用停抽結合的變真空能量法，在不影響加固效果的前提下，可以大大節省用電量。 -
The cause of vacuum degree formation under groundwater table is discussed in the paper. the testing results show that vacuum degree above the groundwater table is produced directly by pumping air, and that vacuum degree below groundwater table is produced mainly by dewatering and by escaping of sealed air from the end of flexible pipe. based on the bernoulli equation, the limit lowering of groundwater table is analyzed, which is about 5 ~ 7m. the effective influence depth of vacuum preloading has relationship with pvds depth and can be more than 10m
對地下水位線以下的真空度成因進行了分析，結果表明，地下水位線以下測到的真空度是由於測試軟管中水位下降或部分封存氣體從軟管末端逃逸引起的，與地下水位線以上的真空度由抽氣直接形成在成因上存在不同；根據伯努俐方程，對地下水位下降的極限深度進行了分析，得出真空預壓中地下水位的極限下降深度為5 7m ；對有效影響深度的分析結果表明，真空預壓的有效影響深度與塑料排水板的打設深度具備一定關系，有效影響深度可以超過10m 。 -
Based on the results from both laboratory test and field application of vacuum preloading it can be concluded that soil is water - saturated in the processes of vacuum consolidation or vacuum preloading. thus, the consolidation properties in negative - pressure area cannot be calculated by using the theory based on non - saturation soil. negative pore - water pressure and suction were specified
在室內試驗及現場試驗基礎上，證明真空預壓加固地基過程中，負壓區土體仍是飽和的，不能用非飽和土理論來計算負壓區的固結性狀，並辨析了負壓與吸力的概念。 -
( 2 ) improved the laboratory test apparatus, and made four kinds of laboratory experiment, those are vacuum preloading, surcharge preloading, vacuum combined surcharge preloading and each direction equal loading
（ 2 ）改進了現有的試驗儀器，並進行了真空預壓、堆載預壓、真空-堆載聯合預壓及各向等壓的試驗。 -
Treatment of weak soil foundation of shenzhen airport by vacuum preloading
真空聯合堆載預壓處理深圳機場軟土地基 -
The mechanics of vacuum preloading was discussed by contrast of vacuum preloading and heaped preloading. the factors affecting the result of vacuum preloading for ground consolidation were as follows : the geological conditions of site, the intensity of vacuum pumping, the condition of underground water and installation of vertical drainage line. through analysis of these factors, some conceptions and design principles were proposed for vacuum preloading
在此基礎上，通過堆載預壓與真空預壓的對比闡述了真空預壓加固地基機理，分析了影響真空預壓加固地基最終加固效果的各個因素：場地地質條件、抽真空作用強度、地下水賦存情況及豎向排水體的設置等。 -
A method to back analysis the distribution pattern of negative pore - water pressure along vertical drainage line was proposed. some practical vacuum preloading projects were analyzed. the results showed that distribution patterns of negative pore - water pressure along the vertical drainage line were uniform and the magnitude was about half of the vacuum degree under the membrane
提出由現場實測資料反分析豎向排水體中的負壓分佈的方法，通過對若干工程實例的反分析，認為真空預壓下負壓分佈沿豎向排水體的分佈基本均布，其值約在膜下真空度的50左右。 -
But the mechanism of vacuum preloading is not clear, it is necessary to study the method
為弄清機理，提高設計和施工水平，有必要作進一步深入的研究。 -
Then, combined with the mechanism of vacuum preloading and based on the layer method, settlement calculation of vacuum preloading was analyzed. the study shows that the vacuum degree under membrane equivalent load method does not accord with the mechanism of vacuum preloading. based on the layer method, vacuum degree difference method and effective stress method are presented. the results show that the final settlement calculated by the vacuum degree difference method is more close to the observation results
然後，結合真空預壓的機理，基於分層總和法的思想，對真空預壓沉降計算方法進行研究：指出用現有的膜下真空度等效荷載法進行沉降計算不符合真空預壓機理；提出了符合真空預壓機理的真空度差值法與有效應力法，前者所推算的最終沉降量較接近實測推算結果，後者與實際結果存在一定差距。 -
Monitoring and analysis of displacements of soft soil embankment with jointed vacuum - preloading treatment
軟土路基真空聯合堆載預壓位移監測與分析 -
In recent years, vacuum preloading is extensively used to treat soft clay ground, whereas the development of the theoretic study in vacuum preloading cannot follow the progresses in engineering, which has limited the progress and application in engineering practice
目前有關真空預壓加固地基的理論研究落後于工程實踐，制約了該工法的進一步發展和工程應用，有必要對此進行系統的研究。 -
Stress and strain variations during vacuum consolidation were analyzed and the effect of mandel in vacuum preloading was evaluated. some solutions for vacuum preloading consolidation were derived on the basis of previous research findings
在與加載固結比較的基礎上進行了真空固結過程的應力、應變分析，對真空預壓加固地基的曼德爾效應做了初步評價。 -
Analyzing quantitatively the structural features of soft soil from marine accumulation around vacuum preloading by means of x - ray, scanning electronic microscope and computer image processing technique, together with the experiment and comparing the changes of soft soil in microstructure and engineering properties, the authors studied the consolidation mechanism of vacuum preloading
摘要藉助x -射線、掃描電鏡及計算機圖像處理等技術，對海積軟土真空預壓加固前後的結構特徵進行定量分析，並結合室內試驗，對比研究土體微觀結構和工程性質的變化，探討真空預壓加固的機理。 -
( 7 ) axisymetrical analytical solutions of vacuum preloading was deduced to compute pore water pressure and degree of consolidation, the effect of vacuum loading speed, well resistance and smear were considered
（ 7 ）在軸對稱單井模型的基礎上，推導了考慮真空荷載施加過程的真空預壓下地基孔壓及固結度的解析解，同時可考慮井阻、塗抹等因素。 -
Analysis of strengthening effect of the rui ' an part of wenzhou expressway soft foundation by vacuum preloading method
甬臺溫高速公路瑞安段真空預壓軟基處理效果分析 -
The vacuum combined with surcharge preloading developing from vacuum preloading is a useful strengthening method to soft soil foundation
真空堆載聯合預壓法是在真空排水預壓法的基礎上發展起來的一種加固軟土地基的有效方法。 -
Vacuum preloading and vacuum combined surcharge preloading are effective methods to improve soft foundation. along with our country ' s construction upsurge, these two methods were used more widely
真空預壓法及真空-堆載聯合預壓法作為一種軟土地基處理方法，具有諸多優點。 -
( 9 ) simplified calculate method of settlement under negative pressure was researched. integrated with axisymetrical analytical solution, we can design the foundation improved by vacuum preloading and vacuum combined surcharge preloading
（ 9 ）研究了真空作用下地基沉降與堆載的不同之處，提出了負壓下地基沉降計算的修正方法。
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