鄧肯維 的英文怎麼說
中文拼音 [dèngkěnwéi]
鄧肯維
英文
duncansville-
In the paper, static and dynamic triaxial tests were conducted on fiy ash at shanmenxia longgou ash dam, and the static and dynamic parameters of fly ash were obtained. thirdly the 2 dimensions static analysis of the ash dam was conducted based on biot ' s consolidation theory and duncan ' s nonlinear stress - strain model. finally the plane dynamic behaviors of the ash dam during earthquake of intensity 7 were analyzed based on the exponent function model of excess pore water pressure aroused by earthquake, which is put forward in the paper, and equivalent visco - elastic dynamic fem model and principle of effective stress
本文結合實際工程，對三門峽火電廠龍溝灰壩的築壩粉煤灰進行了靜、動三軸試驗，確定了該壩粉煤灰的靜動力學指標；然後根據比奧（ biot ）固結有效應力原理，採用鄧肯（ duncan ）非線性應力應變模型，對該灰壩的二維靜力應力和變形狀態進行了分析；最後利用本文提出的地震超靜孔壓指數函數模型，採用等價粘彈性動力有限元方法，對該灰壩在地震作用下的動力穩定性進行了分析評述。( 3 ) fem basic theory of foundation pit excavation stimulation is expounded, numerical model and method of construction simulation are determinated, which includes simplification of two - dimension problem and constitutive model of soil mass i. e. constitutive model of duncan - chang hyperbola model, numerical ways of initial situ stress, stimulation of equal nodal load of foundation pit excavation, nonlinear solutions of basic equations, fem disposing of inner supporting and pre - axial force etc. further fem code of stimulation of foundation pit excavation is compiled
闡述了基坑開挖模擬的有限元基本理論，確定計算模型及施工模擬方法。包括二維問題的簡化、土體的本構模型，即鄧肯-張雙曲線本構模型、初始地應力場的計算方法、基坑開挖等效結點荷載模擬、基本方程的非線性解法、內支撐及預加軸力的有限元處理等，並編制了模擬基坑開挖的有限元程序。“ timmy did a great job on the boards and i thought the whole team did well, ” said popovich. “ it was really an emphasis for us because they are so athletic and they score so much, we really couldn ' t afford to give them second - chance points
「鄧肯在籃板球上十分出色，而全隊也表現不錯」波波維奇說： 「這絕對是一個我們必須重視的地方，他們的速度很快，得分能力非常強，要是再給他們第二次進攻的機會我們就完了。This thesis, based on the true three - dimension consolidation theory namely biot ' s consolidation theory, adopting duncan - chang model and non - thickness goodman friction element, compiles practical 3d non - linear fem program. the conceptual geological model is established according to the north anchorage and feature of its foundation soil in zhenjiang - yangzhou yangtse bridge
本文從「真三維固結理論」即比奧固結理論出發，採用鄧肯-張e模型和無厚度的古德曼（ goodman ）接觸面單元編制了三維非線性有限元程序實用程序biot2000 ，並結合潤揚長江公路大橋南汊橋北錨碇及地基土的組成結構特徵建立了概化地質模型。The several ones that have more lager sensitivity to embankment settlement are found out. then, aimed at the traditional three - layer bp network ' s shortages : easily getting into local minimum value and slow convergence, the modification combined momentum method with self - adaptation study velocity is made, and one improved bp network is put forward. finally, according to the results from above sensitivity analyses, the nonlinear model main parameters of each natural layer in roadbed are approximately rectified using the improved bp network technology founded on its stronger nonlinear mapping capacity and the settlement measurements
採用非線性有限元程序，對鄧肯-張模型中8個參數與路堤沉降的關系進行了詳細分析，找到了影響沉降的主要參數；接著，針對傳統的三層bp網路具有收斂速度慢、易陷入局部極小點等不足，對其進行了修正，提出了改進的bp神經網路模型；最後，根據上述靈敏度分析結果，基於改進的bp網路模型較強的非線性映射能力和前期沉降實測資料，對路基中各天然土層的非線性模型主要參數進行了反分析修正； （ 4 ）路堤沉降計算一維法中考慮應力歷史、側向變形的研究。By adopting the three - dimensional nonlinear finite element program, using drucker e - b model, demonstrating the actual construction progress and water impounding of gongboxia hpp main dam, comparing the two schemes of the existence and nonexistence of extruded concrete curb, made three - dimension simulation calculation, the result proved that while the existence of extruded concrete curb between face slab and rockfill, the deformation and stress of face slab are better than that while the nonexistence of extruded concrete curb
採用三維非線性有限元計算程序，使用鄧肯e b模型，模擬公伯峽面板壩的實際施工進度、蓄水過程，對比有無擠壓邊墻兩種方案，進行三維模擬計算。結果表明，面板與堆石體之間有擠壓邊墻時，其面板的變形及應力值均小於無擠壓邊墻的相應結果。分享友人