預壓固結 的英文怎麼說
中文拼音 [yùyāgùjiē]
預壓固結
英文
preconsolidation-
Study on heaped pre - compaction settlement consolidation of f1 international autodrome in shanghai city
1國際賽車場堆載預壓沉降固結的研究Based on the terszige and biot theory, initially analyze the economical of this experiment, directly save investment 22 % after compute. after that, computing the settlement of highway foundation, comparing the computing and survey value, the predict formula of vacuum - heaped load combining precompression for designing, this formula show that the distortion law of consolidation progress. at the same time, based on the position and room experiment, analyzes the intension transformation in soft soil and criteria of stabilization control
在太沙基和比奧固結理論的基礎上,先分析了此次試驗的經濟性,經核算直接節約投資22 ,經濟效益十分明顯;隨后對真空堆載聯合預壓法加固軟土路基的沉降量進行了估算,並與實測值作對比分析,得出了真空堆載聯合預壓下的沉降量估算公式,能反映「真空」加固過程的變化規律;同時根據現場和室內試驗,分析了軟土強度的變化,以及給出並驗證了工后沉降控制標準。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。Study on primary consolidation of saturated soft clay under pre - loading drainage condition should be started with its drainage in nature, i. e., study the variation discipline of primary consolidation by its water content variation of soft clay through the pre - loading course, utilizing the basic property index of clay, then deduce the primary consolidation ration formula and get the theoretical calculation solution of primary consolidation ( settlement ), absolute primary consolidation, as well as absolute consolidation degree
摘要對飽水軟粘土的預壓排水主固結研究應從其排水的本質出發,即從軟土在預壓過程的含水量變化上研究主固結量的變化規律,利用土的基本性質指標導出主固結比基本公式及主固結量(沉降量) 、絕對主固結量、絕對固結度等理論計算方法。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。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。Finally, two examples show that, the availability and practicability of the new model is verified. the analysis of calculation result of berthiervill test embackment shows different part of compression curve have different influence upon the course of consolidation, and correct coefficient and viscous effect have great significance on deformation forecast. associated with the wenzhou airport runway engineering, the reason of increasing of pore - water pressuer in under - lying soft layer and post - construction settlement are given
最後,通過兩個工程實例的分析來說明本文模型的有效性和實用性:一是對berthiervill填土試驗場的軟基實測數據和理論成果進行對比分析,闡明考慮結構性擾動和粘滯性效應對分析天然粘土固結壓縮性的重要性;二是對溫州機場袋裝砂井超載預壓工程進行數值模擬,指出停荷預壓期間下臥層孔壓增加和工后沉降大的原因。Abstract : based on laboratory test results, a model for predicting the residual deformation of soft clay under impact loading is proposed in this paper, which fits well with other test results. this model, considering several factors which affect the residual deformation such as confining pressure, impact energy and the number of impacting, can be used for the deformation prediction in the treatment of saturated soft clay by the drainage consolidation method of combining static and dynamic loading
文摘:在試驗基礎上建議了一個預測沖擊荷載作用下飽和軟粘土殘余變形的計算模式,該模式考慮了周圍壓力、沖擊能大小、沖擊次數和沖擊遍數等幾個因素.對計算模式的驗證表明,預測值與實測值吻合較好.該模型可用於動靜結合排水固結法處理軟基時的變形計算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。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。That is, the partially penetrating sand drain ground is viewed as the double - layered ground, and its consolidation is analyzed with 1 - d consolidation theory, through the transformation from 3 - d consolidation to 1 - d consolidation in the region of sand drain. this can overcome the disadvantage that the excess pore water is discontinuous between the region of sand drain and under - lying soft layer. to the double - layered ground, based on the consolidation mechanism under surcharge, the excess pore water pressure calculation formula is deduced under the condition of multilevel equably loading or unloading, which perfects the consolidation theory
然後,在充分考慮豎井區井阻、塗抹作用以及土體結構損傷破壞對固結影響的基礎上,將未打穿豎井地基合理地轉化為雙層地基,按一維固結理論計算,克服了傳統固結計算方法在豎井處理區與下臥層交界面處存在孔壓間斷的缺點;在此基礎上,從超載預壓法的基本原理出發,分析了雙層地基超載預壓固結、沉降機理,推導了多級等速加、卸載情況下雙層地基的固結計算公式,進一步完善了雙層地基固結理論。Through site monitor and numerical simulation result, technical measure and parameter optimization were given from foundation stability ; inject slurry ; controlling soil pressure, which mitigate the influence on the structure to least. the best shield construction condition was given at the end
通過現場監測與數值模擬分析,本文從預加固措施、襯砌背後注漿、開挖面土壓力、盾構推進速度、盾構姿態等方面提出盾構穿越結構物過程中施工技術措施和參數優化及匹配,使推進中對周圍地層、地面、既有結構物的影響最小,得出了最佳盾構推進狀態。By using the constitutive model, we can establish the creep and consolidation model, the variation trend of super pore water pressure and the development of viscoelastic settlement and viscoplastic settlement. at last forecasting the long term creep settlement in the metallurgy industrial estate at the backward position of haihe river in tianjin
並利用此本構關系建立蠕變與固結模型,計算出土層在大面積填土作用下超靜水壓力發展趨勢,同時得出其粘彈性、粘塑性沉降發展趨勢,最後對冶金工業區軟土長期蠕變沉降作出預測。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。In the same time, this paper applied the plane strain fem based on biot theory to analyzed calculated result and observation information hi scene. finally, this paper put forward a settlement forecast model based on the modified gaomujunjie method, using by inversion analysis theory to compare and analyze the settlement process of vhlcp. result indicated that the model inosculated with the fact data and the consolidation degree have finished 86 %, back - work settlement was 87mm
最後,根據實測沉降資料,採用一維反演分析法,推導最終沉降量計算公式,結合改進后的高木俊介固結度計算方法,建立真空堆載聯合預壓的沉降預測模型,並根據計算結果,對比實際沉降過程,對比表明:所建沉降預測模型與實測數據吻合,由此所得現場試驗的地基平均固結度達86 ,剩餘沉降為87mm ,滿足高速公路質量要求。The strength line of consolidation undrained shear of field soft clay is polygonal. on the basis of the character, and the calculation formula of stability and strength increase of structural soft clay ground can be obtained
原狀結構性軟土的固結不排水強度包線為折線型,根據此特徵給出了考慮結構性影響的預壓地基的強度增長和穩定安全系數計算公式。( 8 ) for the sake of overcoming the shortage of the former work, axisymetrical analytical solutions of vacuum combined surcharge preloading were deduced, the effect of surcharge loading speed was considered and vacuum was regard as instantaneous load, so we can take account of effect of surcharge loading time, well resistance and smear, it is more closed to practical engineering
( 8 )根據以前真空-堆載聯合預壓解析解的不足之處,推導了真空-堆載聯合預壓下地基孔壓及固結度的解析解。本文的解析解將真空荷載視為瞬時施加,而將堆載荷載的施加考慮為線性施加過程,因此可以考慮堆載施加的時間影響,與實際工程情況更摘要加接近,並可同時考慮井阻、塗抹的影響。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。分享友人