fine sand layer 中文意思是什麼
fine sand layer
解釋
細砂層-
Abstract : in this paper, the efficient stress method is used as main means, while the railway engineering anti - earthquake design specification and the dynamic triaxial test are used as additional means. the authors analyze the ground layer liquefaction of shield tunnelling built on powder soil or fine sand, whose top plate is buried under two kinds of depth, and conclude that the liquefaction area is different with different buried depth. finally, the rational buried depth is proposed
文摘:以有效應力原理的有限元計算分析為主、鐵路工程抗震設計規范及室內動三軸實驗為輔，對修建在粉土或粉細砂層中的盾構隧道進行了兩種不同埋深情況下的液化分析，得出了埋深不同液化區出現區域不同的結論，並提出隧道抗液化的合理埋深。 -
Stripping of water - containing fine powder sand layer in loose slope at iron open - pit mine
露天鐵礦鬆散邊坡內含水粉細沙層的剝離方法 -
2 ) from the analysis of the aerodynamic parameters and turbulent flux transfer under different synoptic conditions we achieve the conclusion that on sands raising and sandstorm days turbulent momentum and sensible - heat fluxes are important exchange factors in the boundary layer, with turbulent exchange stronger in sandstorm weather than both on fine and sand raising days. prior to the occurrence of such an event, in particular, the super - adiabatic instability in the near - surface boundary will reinforce sandstorm weather condition. 3 ) atmospheric turbulent diffusion parameters z and y have apparent daily variation
沙塵天氣下以親地殼元素為主的氣溶膠元素濃度均高於背景大氣和浮塵天氣，而且沙塵天氣強度愈強，元素濃度的增加愈顯著；背景大氣、浮塵天氣條件下親地殼元素的濃度一般在10 ~ （ - 1 ） 10 ~ 0 g m ~ 3量級，揚沙、沙塵暴時一般達10 ~ 1 g m ~ 3量級，特強沙塵暴時高達10 ~ 2 g m ~ 3量級。 -
For the case of transporting suspended fine sand, a single - fluid model is used to calculate the flow resistance by solving the navier - stokes equations. the computed agrees well with the measured. and for the case of transporting medium - sized sand, a two - layer model is used and the model produces a good agreement with the experiment data
對管道輸送細沙懸移質的流場，採用單流體模型進行數值求解n - s方程，計算結果與實驗資料相吻合;對具有分層流動的中沙管道水力輸送，採用兩層代數模型進廳了計算分析，阻力損失的預測結果與實驗吻合較好;最後對管道輸送粗沙的阻力特性和運動機理進行了分析探索，提出了進一步研究的方向。 -
The foundation are formed by the inter - layer of fine and crude earth, in the different level of the layer, are distributed lenticular sand, which result in the poor uniformity
由粗、細粒土相互迭置成層，層內不同高程上有透鏡狀砂層分佈，均一性較差，地基可能出現不均一沉陷變形。 -
Uniformed fine sand. if appropriate geotechnical fabric is difficult to be used, a layer of sand may be laid between the fabric and protected soil in order to solve the uneven soil and to improve the filtration effects
本文在實驗研究的基礎上，對水利工程中土工織物反濾作用的機理和功能進行了分析，提出了針對不同應用目的的土工織物應用特點和技術。 -
The fact that grain of sand is fine or silty, with thin layer and little - scale scours means that the water energy was low. grain analysis tells its transiting character between turbulent flow and drag flow with the same character as sub - fan. in the core, every sequence is positive rhythm and debris flow that is not developed in delta was also found
巖電關系分析表明，孔隙度與聲波時差成正相關關系，與自然伽瑪呈負相關關系，而滲透率與孔隙度具有較好的指數關系，據此建立了解釋模型，在測井數據標準化的基礎上進行了測井解釋，較為準確地反映了井點處的物性特徵。
分享友人