pore path 中文意思是什麼
pore path
解釋
孔道-
Abstract : reviewed are five methods for the analysis of the penetration of jacked - in piles, namely, cavity expansion method, strain path method finite element method, slip line method and calibration model test. after analysis, it is pointed out that it is more rational to adopt sub - statical spatial axisy numerical formulas based on traditional plane - strain cavity expansion method in the analysis. after spatial closed - form solutions are obtained for soil movements, stresses and initial excessive pore pressures generated durihy pile penetration are found out. it is suggested that finite element analysis together with centrifugal model test be used in verifying the results
文摘:在分析飽和粘土中靜壓樁的貫入機理的基礎上，對靜壓樁沉樁分析的圓孔擴張理論、應變路徑法、有限元分析、滑移線理論和模型槽試驗等五種方法逐一進行評述，並提出在傳統的平面圓孔擴張理論基礎上加以改進，採用準靜態空間軸對稱方程組對靜壓樁貫入過程進行模擬，從而得出土體位移、應力、初始超孔壓的空間解析解，同時採用有限元分析、模型槽試驗相互印證的研究方法 -
The membrane layer is formed by the vacuum forming technology. by controlling the weight and the ratio of long path of ceramics fiber, changing the operation factor reasonably of vacuum forming, we can obtain the ceramic fiber composite membrane layer, which has pore diameters of about 5 to about 30um, porosity i s 50 - 80 %, and tensile strength is about 4. 1to 18. 1mpa and thickness of membrane layer is 0. 5 - 2 mm, has the good thermal shock resistance and peal off
膜層採用真空抽濾成型工藝，通過控制膜組分中陶瓷纖維長徑比、纖維加入量、成型時料漿濃度、成型壓力及成型時間等可以獲得膜孔徑5 ? 30 m 、氣孔率50 ? 80 、抗折強度4 . 3 ? 18mpa 、膜層厚度0 . 5 ? 2mm 、具有良好熱性能和耐剝離性能的陶瓷纖維復合微濾膜材料。 -
The addition of aluminium powders induced cement mortar to produce a mount of pore, the existing of pore could block path of through pore, so increased cement mortar impermeability. the experiments results revealed that appropriate addition amount of aluminium powders in cement mortar was 0. 004 - 0. 005 wt %
氣泡的引入可以阻斷水泥石中的貫通孔的通路，從而增加其抗滲性能，通過試驗研究，鋁粉在水泥砂漿中的摻量以（ 0 . 004 0 . 005 ）為宜。 -
Four types of constitutive models are provided by the code : linear elastic model, duncan - chung model, nonlinear elastic model taking stress path into account and modified three - element model. contact element is used to simulate possible sliding between soil and structure. with this code, analysis is made concerning the pore pressure dissipation, lateral deformation of the support, ground settlement, bottom heave, and variation in earth pressure and support forces ; both effects of consolidation and coupled effects of consolidation and creep are considered ; furthermore, different combinations of cohesion, permeability and excavation width are elaborated
該程序採用了更合理的開挖荷載的計算方法，可以引入線彈性、鄧肯張非線彈性、考慮應力路徑的非線性彈性和修正三元件模型等四種本構模型，並在擋墻和土之間設置薄層接觸面單元以模擬土體和墻體在開挖過程中可能產生的滑移。 -
With the data recorded by computer, the author studies the experiment progress in detail, which includes the development of pore press, strain, strength of the sand, etc. connecting the development of these phenomena with the development of stress path, the author finds new mechanism which can explain the phenomena in the experiment. what is more, according to the dynamic test of the sand, there appears a steady state at the last phase of the development of strain and stress path, in which the strength of the sand is studied because it is an important parameter in evaluating the stability of sand against liquefaction. secondly, the dynamic constitutive relation was studied through the dynamic tri - axial test
本文首先採用目前國內較先進的微機控制動三軸儀，利用其可以適時採集和儲存數據的優勢，對砂土的實驗過程進行了細致的分析，研究該過程中孔隙水壓力發展、軸向應變發展以及它們與應力路徑之間的關系，對飽和砂土的剪脹、剪縮和卸載體縮等多個方面進行了研究，探索了砂土的動力特性，分析了影響砂土抗剪強度的各種因素，這些因素既包括土本身的特性（土的密度、結構、級配、透水性以及初始狀態等） ，又包括動荷載的特徵（振動力幅值大小和振動頻率等） 。 -
The pore pressure, relationship of stress and strain, and the shear strength parameters obtained by unloading tests are different from those obtained by loading tri - axial tests. later the difference is analyzed in the respect of stress path and microstructure. at last, by use of a practical project the author compared and analyzed the two sets of shear strength parameters obtained by two different stress paths
模擬基坑開挖的三軸試驗得出了與常規三軸試驗不同的孔隙水壓力和應力-應變關系，這樣得到的抗剪強度指標也低於常規三軸固結不排水加荷試驗所得抗剪強度指標，繼而本論文對抗剪強度指標的差異從應力路徑的角度和微觀結構的角度進行了分析。
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