layered soil 中文意思是什麼
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Characteristics and calculation model of phreatic evaporation of sand - layered soil
夾砂層狀土壤潛水蒸發特性及計算模型 -
Effect of the sand layer position on the phreatic evaporation in the layered soil profile
層狀土壤中砂層層位對潛水蒸發的影響 -
In this thesis, studies are focused on as follows : ( 1 ) based on analyzing the general transfer - matrix, the conception of the generalized double layer soil model is proposed, and the transfer - matrix ( r ) of half - infinite elastic mass is introduce - d to the analytic expressions of stress and settlement under the uniform circular, rectangular and strip vertical loads in multi - layered soil ; ( 2 ) according to the analytic expressions of the additional stress and settlement under unifo - rm circular in multi - layered soil, rectangular and strip vertical loads, the programs are develop - ed to resolve and debugged. the results show that the programs are correct ; ( 3 ) through calculating the coefficient of additional stress on the central axis of uniform circ - ular vertical loads, under the corner point of the uniform rectangular vertical loads, and on the central axis of uniform strip vertical loads, and the settlement on the center of uniform circular vertical loads and uniform rectangular loads in double - layered soil, the characters of stress and settlement are discussed ; ( 4 ) a case, as an example, is studied with different calculation methods, such as traditional theory, fem. the results obtained are compared
本文在已有研究成果的基礎上進一步開展了以下幾方面的研究： （ 1 ）在對層狀地基傳遞矩陣法中的總傳遞矩陣分析的基礎上，提出了廣義雙層地基模型的概念，並把半無限體的傳遞矩陣r引入到多層地基在圓形垂直均布荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式中； （ 2 ）根據多層地基在圓形荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式，編制了程序，調試通過並驗證了其正確性； （ 3 ）通過對雙層地基圓形垂直均布荷載中心軸線上的附加應力系數和荷載中心沉降，矩形垂直均布荷載角點下的附加應力系數和荷載角點沉降及條形垂直均布荷載中心軸線上的附加應力系數進行的計算，探討了雙層地基中的附加應力與沉降特性； （ 4 ）應用本文的層狀地基體系理論對一個工程實例進行了計算分析，並與傳統的計算方法的計算結果和有限單元方法的計算結果進行了對比分析，結果表明利用層狀地基理論計算更能反映地基中附加應力分佈的實際情況。 -
So the topic for farther discussion will be developed on the ground of soil - foundation - structure interactions, and em phasizes particularly on the investigation for dynamic effects on interaction of pile - supported structures subjected to lateral seismic load at layered - soil media. it will provide engineering application with practical and concise computational method, but also provides the aseismatic design for pile - supported structures with proper theory foundations and schemes to some extent on condition that definite codes are absent at present. the full article is divided into six chapters, as follows : 1
本論文工作將圍繞地基-基礎-上部結構共同作用這一課題作進一步探討，側重於水平地震作用下層狀地基土中的樁基-建築物的動力相互作用的研究，為實踐應用提供了適合於工程目的的、比較簡捷的實用計算方法，亦擬為沒有明確規范指導的樁（土）基礎-結構抗震設計提供一定的理論依據和設計建議。 -
Along with variability of vertical coefficient of consolidation rising, the sensitivity of probability characteristics of average percent consolidation of double - layered soil to the variability of vertical coefficient is falling, and the sensitivity of it to the variability of vertical coefficient is rising
雙層地基平均固結度的概率特性對豎向固結系數變異性的敏感性隨著其變異系數的增大由強變弱；隨著豎向固結系數的變異系數的增大，平均固結度的概率特性對豎向固結系數分佈概型的敏感性由弱變強。 -
Maximum height of upward capillary water movement in layered soil
層狀土壤毛管水最大上升高度分析 -
Soil capillary water upward movement from sand layered soil column
夾砂層土體構型毛管水上升的實驗研究 -
Random wave - theory analysis of layered soil sites under p - and sv - wave excitations
波作用下層狀土層隨機波動分析 -
The research involves two problems how to estimate the water and earth pressures on the supporting structure around a foundation pit and choose the strength parameters. the paper analyses the shear strength parameters for the unconsolidated - undrained triaxial test and the consolidated - undrained triaxial test in layered soil
課題從室內三軸試驗著手，通過大量的試驗對不同深度下各層土體的不固結不排水抗剪強度指標和固結不排水抗剪強度指標進行了比較和分析。 -
Though scholars at home and abroad had made corresponding research during the last century and at the same time they had made great achievements, most of them confine themselves to the research on perfect pile buckling, not considering the influence of many special situations such as the initial bend, the defects in construction and the layered soil, etc. . the reliability design has not been advanced according to the design method of probability theory until recent years
基樁的屈曲分析是一個相當復雜而又具有實際工程意義的課題，其影響因素繁多。盡管國內外學者上世紀就已有相應的探討，取得了許多研究成果，但大多局限於對基樁本身的屈曲研究，而未考慮基樁本身的初始彎曲、施工缺陷和土體分層等諸多特殊情況的影響。 -
The formulas for computing mean and deviation of the average consolidation degree of double - layered soil are derived as vertical coefficient of consolidation submitting to gamma distribution. with these formulas, the influence of geotechnical auto - correlation distance to the probability characteristics of consolidation degree is studied. it shows that along with the rising of auto - correlation distance, the sensitivity of probability characteristics of consolidation degree to auto - correlation distance is falling
當豎向固結系數為gamma分佈時，推導了雙層地基平均固結度均值和方差的計算公式：利用該公式分析了土性自相關距離對平均固結度概率特性的影響，結果顯示，自相關距離越大，平均固結度的概率特性值對自相關距離越不敏感。 -
Vertical soil - pile interaction during the passage of raileigh waves in two - layered soil
瑞利波作用下成層地基中單樁橫向振動分析 -
The axisymmetric mixed boundary - value problem of the vertical vibration of a rigid foundation on saturated layered soil subgrade
上覆單相彈性層的飽和地基上剛性基礎豎向振動的軸對稱混合邊值問題 -
( 3 ) according to the principle of equality of consolidation degree, an equivalent method of converting vertical drain to layered soil was proposed, and we can use plane strain fem to analyze ground with vertical drain via translating it to layered soil foundation
（ 3 ）根據固結度等效的原則，提出了與單井固結理論等效的成層均質地基等效滲透系數計算方法，從而將復雜砂井地基轉化為無砂井成層地基，可用於平面應變有限元簡化計算。 -
The analytic solutions of isotropic elastic layered soil under axisymmetrical, rectangular and strip loads were derived from the basic equations of isotropic elastic mechanics by means of transfer - matrix method. by the result, can easily calculate the additional stress and settlement in layered soil. but these solutions could not properly assess the errors from the elastomer of the bottom layer in foundation soil
從各向同性彈性力學基本方程出發，利用傳遞矩陣法推導出的多層彈性地基問題在軸對稱荷載、矩形荷載和條形荷載作用下附加應力與沉降的解析解，可以方便地求出層狀地基中的附加應力和沉降，而他們均沒有考慮最下層彈性體計算深度引起的誤差影響。 -
At the same time, the paper deduces the essential character of the model, gets the solution of model parameters and discusses the problems during engineering application of the analysis model. ( 3 ), one dimensional consolidation theory of impeded boundary by linear loading is deduced for layered soil, which expands the consolidation theory of impeded boundary. afterwards, the paper discusses the application of the model for settlement data of layered soil
分析了沉降數據模型的基本性質，得出了模型參數的解法，探討了沉降數據分析模型在工程應用中存在的常見問題； （ 3 ）針對分層地基，推導了等速加荷條件下半透水邊界一維固結理論解，完善了半透水邊界固結理論，並討論了沉降數據分析模型在分層沉降數據分析中的應用問題； （ 4 ）結合工程實例，闡述了沉降數據分析模型的應用。 -
An integral equation approach and parametric analysis for single pile in layered soil
層狀地基中單樁性狀的積分方程解法及其參數 -
The reliability of consolidation of double - layered soil is analyzed by monte - carlo method. a probability design coefficient is defined, and the relation between the coefficient and failure probability is given, then the process for probability design of double - layered soil consolidation is provided
定義了一個概率設計系數，在豎向固結系數服從不同概率分佈的情況下，給出了其與失效概率的關系式，並給出雙層地基固結的概率設計的步驟 -
Theoretical study of horizontally loaded single pile in layered soil considering consolidation and rheology of soil
考慮固結和流變的層狀地基中的水平單樁的理論分析 -
With the consideration of the vertical wave effect of soil and soil - pile interaction, an approximate analytical solution to vertical vibration of pile system with variable impedance in visco - elastic layered soil is developed. a simplified and practical mathematical model for interaction between soil layers is proposed, and its applicability is theoretically investigated. based on this model and by using laplace transforms and the transmit property of impedance function, the analytical expression of the impedance function and solutions of the displacement and velocity response function in frequency domain and in time domain at the pile head are derived
4 、從三維軸對稱土模型出發，對考慮樁土耦合作用、土層層間聯系以及樁周土豎向應力梯度變化條件下的成層粘彈性土中完整樁及變阻抗樁系統縱向振動問題進行了研究，提出了成層土中變阻抗樁系統縱向振動問題的近似解析解法和樁周土層層間相互作用的簡化而實用的數學模型，並利用拉氏變換和阻抗函數的傳遞性，獲得了成層土中任意段變阻抗樁樁頂阻抗函數的解析表達式，以及樁頂速度導納和時域速度響應解析解和半解析解。
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