constitutive relation of soil 中文意思是什麼

constitutive relation of soil 解釋
土的本構關系（本構模型）
  • constitutive : adj. 1. 構成的，組織的；要素的，本質的。2. 有制定權的。
  • relation : n 1 說話，敘述，報告；故事。2 關系，聯系；〈pl 〉（利害）關系，交情；〈pl 〉國際關系。3 親戚關系...
  • of : OF ＝Old French 古法語。
  • soil : n 1 泥土，土壤；土質。2 土地，國土。3 滋生地，溫床。4 農業生活，務農。n 1 臟東西，污物，污穢，污...
  1. 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。
  2. Because of the different material property of the piles and soil, shear stress is produced on the contact surface between piles and soil, which may cause slide and crazing of the soil mass under workload. in order to reflect the mechanical character precisely on the contact surface, a new kind of element, plane - plane contact element is introduced. the principle of the process is presented in detail and the finite element model is established with the consideration of the soil ' s elastoplastic constitutive relation

    由於樁體結構的材料性能與周圍土層性質相差較大，在荷載作用下有可能在其接觸面上產生較大的剪應力從而導致錯動或開裂，為了充分反映樁土接觸面上的受力及變形特徵，考慮樁土之間的共同作用，在樁土接觸面處設置面面接觸單元，將採用接觸單元和不採用接觸單元兩種演算法的計算結果與模型試驗結果進行比較，驗證了本文接觸界面處理的合理性。
  3. The research indicate that the structured soft clay has below several characteristic, the viscous strain is produced during the stage of primary consolidation and of second consolidation, and in the prophase, the relation of stress - strain - strain rate is unique, so the form of constitutive model, such as, f ( v ', e ) = 0, f ( ' v, e, t ) = 0, ca n ' t describe strain behavior of soil skeleton rationally ; the time - dependent properties involve three aspects, in addition the time - dependent strain, apparent preconsolidation pressures that depend on strain rate, and the effect of creep compression on apparent preconsolidation pressures ; because of holding structural strength, the mechanics characteristic is determined by the magnitude of stress, and the compression curve is composed of several sections. by combining structural yield stress and it ' s characteristics with the improved time line model, a new one - dimensional elastic visco - plastic consolidation model is established

    研究結果表明，結構性土的固結過程具有以下特性：主固結和次固結階段都包含有因土骨架的粘滯性移動而產生的變形，而且在正常固結階段，存在應力?應變?應變速率的唯一性， f （ _ v ， e ） = 0 、 f （ _ v ， e ， t ） = 0形式的本構關系不足以描述土骨架的變形行為；固結壓縮過程中的時間效應包括三個方面的內容，除了應力應變關系與時間相關外，還包括粘滯性變形引起表觀前期固結壓力增加和屈服應力的應變速率效應；軟土的結構性使其力學特性與應力水平相關，壓縮曲線具有分段性。
  4. ( 2 ) some studies are made for the subject of various effects on wave propagation and ground motion of multi - dry, multi - saturated, and alternate dry and saturated soil layers. a comprehensive computer program is compiled, accounting for soil dilatancy, linear and non - linear constitutive relation, rigidity degradation and suiting to any combinations of soil layers, dry and / or saturated with different thicknesses, properties, continuity conditions at interfaces, and inputs at base and top boundaries. from the numerical results obtained for a quite large number of typical cases, some knowledge of general trends of response for, especially, the cases of alternate dry and saturated soil layers are gained both quantitatively and qualitatively

    （ 2 ）對不含水土層分層排列、飽水土層分層排列、不含水土層與飽水土層分層交錯排列情況下對波傳播和地面運動的影響做了一些研究，考慮到土壤的剪脹性、線性和非線性本構關系，剛度退化等因素，編制了可適用上述各種情況和任意多土層（包括含水或不含水、力學性質不同、厚度不同、邊界連續條件不同等） ，在不同基底輸入或上邊界輸入作用下的通用分析程序，通過對相當數量的典型情況進行的分析計算，得到了一些趨勢性的認識，特別是對飽水與不含水土層分層交錯情況，取得了一些新認識。
  5. They include compiling a computer program which permits to incorporate various constitutive relation of soil skeleton, dilatancy, stiffness deterioration etc. comparative studies are made for various cases of soil stiffness, resistance of percolation, drain condition on boundary, loading form, constitutive relation, and stratification

    通過計算對各種土壤剛度、滲透條件、邊界透水條件、荷載形式、本構關系和不均勻性等情況做了比較研究，發現了一些新規律和新現象。並對它們做了一些討論和分析。
  6. 2. by analyzing and comparing the soil ? stress - strain relation of the non - linear - elasticity and elastoplasticity, an elastoplastic constitutive model of reinforced earth is created for numerical calculating, and the dynamic stress - strain relations is derived

    2 、通過對土體非線性彈性本構模型和彈塑性本構模型的分析、對比和評價，提出了分析加筋土擋土結構的用於數值計算的彈塑性本構模型，並建立了加筋土動本構模型。
分享友人
分享到 Line

分享到臉書