preloading 中文意思是什麼

preloading 解釋
初始負載
  1. High - strength structural bolting for preloading - hrc system - preloaded bolts

    預荷載高強度結構螺栓. hrc系統.預荷載螺栓
  2. Experimental study on mechanism of reinforcing soft foundation of bridge head by vacuum combined with surcharge preloading

    真空聯合堆載預壓法軟基加固現場測試研究
  3. 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。
  4. For the foundation treatment of the experimental segment of the south shore expressway of the hangzhou bay cross sea bridge, the in situ monitoring has been conducted for more than two years by use of vacuum - surcharge preloading

    摘要結合杭州灣跨海大橋南岸接線高速公路試驗段工程,對真空堆載聯合預壓技術處理的試驗斷面進行了長達兩年多的現場測試。
  5. In addition, these methods rarely consider the case of multi - stage preloading. several studies has been made to solve these problems : ( 1 ), an error processing is present to manage settlement data. based on fairing filtration theory, a fairing program is compiled to fair the observed data. ( 2 ), according to classical consolidation theories, an analysis model of settlement data has been built under conditions of multi - stage preloading

    針對目前存在的問題,本文主要做了以下研究工作: ( 1 )建立了沉降觀測數據誤差處理流程,並基於光順濾波理論,對沉降觀測數據進行光順處理,編制了光順程序; ( 2 )結合經典固結理論,建立了分級加載條件下沉降數據分析模型。
  6. 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。
  7. Through analyzing the in - situ data such as total settlement, layered settlement and pore water pressure, the actual deformation behavior of soft foundation are mastered. after summarizing the methods of predicting settlement of soft foundation and bring forward a method to predict the post construction settlement of the surcharge preloading soft foundation. and the engineering application of the predicting foundation settlement based on “ law of massaction ” and the traditional predicting methods are compared, the results shows that the model is useable and it deserves more validation in more projects

    本文以深圳灣軟基處理工程試驗區為背景,通過對淺層沉降、分層沉降、孔隙水壓力等資料的分析,掌握了軟基變形的實際性狀;在總結軟基路堤沉降預測方法的基礎上,探討了軟基超載預壓工后沉降預測的參數反演法;並對地基沉降預測的「質量作用定律」模型的工程應用與傳統的預測方法進行了對比,驗證這種方法是可行的,得出了一些有用的結論。
  8. High - strength structural bolting assemblies for preloading - part 2 : suitability test for preloading

    預加負荷用高強度結構螺栓組件.第2部分:預加載適用性試驗
  9. According with the characteristics of pore water seepage and soil deformation, the 1 - d rebound anti - consolidation model is set up. then the anti - consolidation differential coefficient equation is deduced and the corresponding a nalytical solution is obtained. in succession using the above theory, the influence to effective stress area ratio of some factors, such as preloading time, surcharge ' s magnitude and the depth of vertical drain

    針對卸載后淺部地基孔隙水滲流和土體變形特性,建立了軟土地基一維回彈吸水固結模型,推導了吸水固結微分方程,並求出了方程的解,同時,給出了回彈變形計算公式。
  10. 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。
  11. Among soft - base improvement methods, prefabricated drain preloading is one of the most popular vertical drain methods. it is developed from sand drain preloading method

    塑料板排水預壓法是在砂井排水預壓法的基礎上發展起來的,是一種行之有效的軟基加固方法。
  12. Taking dayaowan project as an example, this paper discusses the applicable scope, construction technology and reinforcement effect of ground improvement methods including preloading, vibroflotation and dynamic consolidation

    摘要以大窯灣實際工程為背景,對堆載預壓法、強夯法、振沖加強夯法和強夯置換法的適用范圍、施工工藝和加固效果進行了研究。
  13. 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 。
  14. The shear strength increases by 3 - 6 times after improvement through vane shear test and the resistance increases largely through cpt. the soft foundation treated by vacuum combined with surcharge preloading is very effective. second, the mechanism and some problems of vacuum combined with surcharge preloading were analyzed

    通過十字板剪切試驗與靜力觸探試驗,加固後土體的抗剪強度一般可提高3 6倍,錐尖阻力與側壁阻力也有大幅增長,說明真空聯合堆載預壓加固軟土地基的效果顯著。
  15. This paper introduces the preloading model set technological in heating furnace, preloading model set technological can increase the quality of heating furnace and the life of furnace lining highly

    摘要在加熱爐中採用預加載荷支模工藝,能提高加熱爐施工質量,大大提高爐襯壽命。
  16. Based on the former research, several works in this paper is listed as follow, which is studied by experiment research, theoretical analysis and numerical calculate : firstly, based on local observation and laboratory experiment result, consolidation mechanism of vacuum - surcharge preloading is analyzed form typical mechanics and microstructure seepage factor. a great deal of observed dada is employed to analyze the deformation characteristics of soil after being treated and variation law of pore water pressure

    本文在前人工作的基礎上,通過試驗研究、理論分析、數值計算等手段主要進行了以下幾方面地工作: ( )分析了大量現場觀測成果及室內外試驗資料,從經典力學和微觀滲流兩個角度解釋了塑料板排水真空-堆載聯合預壓法加固軟基機理,總結了該法加固的土體變形特點、孔隙水壓力變化規律。
  17. Secondly, the shape of reinforcement area which have a great influence upon the effect is discussed here, effective embedding depth of plastic drain board and the applying conditions for prefabricated drain preloading method are researched. combined with practice project, a new unloading criterion is proposed

    ( )根據實測資料,討論了加固區形狀對加固效果的影響;對塑料板排水預壓法適用的場地、土質條件以及塑料排水板的有效打設深度進行了探討;提出了該法卸載條件的計算方法,並結合實踐工程進行了驗證。
  18. 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。
  19. High - strength structural bolting assemblies for preloading - suitability test for preloading

    預加負荷用高強度結構螺栓組件.預加負荷的適合性試驗
  20. Preloading loads the add - in the first time that visual studio starts after placing the. addin file on disk

    Addin文件放在磁盤上后,首次啟動visual studio時,預加載將加載外接程序。
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