permeable mass 中文意思是什麼
permeable mass
解釋
滲透性物質-
The main contents are as follows. ( 1 ) filter cloth and the surrounding soil mass are taken as an approximate isotropy in horizontal section, the relationship of stress and strain is studied, the anisotropy is fully considered, the constitutive model of filter cloth reinforcement fly - ash compound is obtained, it is tested with numerous indoor experiments. ( 2 ) the permeable coefficient is introduced into the constitutive relationship of soil mass with relevant seepage theory ( kozeny - carman experience formula ). the test of filter cloth depositing hi the condition of long term seepage flow is done hi the dissertation, the varying regular of permeable coefficient without pressure is presented
本文首先對國內外的研究現狀作了回顧和總結，然後主要針對土工織物加筋粉煤灰復合體的本構關系和計算理論進行研究，主要內容有： （ 1 ）將土工織物和周圍土體視為一種近似的彈性非線性橫觀各向同性體，研究它的應力應變關系，充分考慮它的各向異性，得到土工織物加筋粉煤灰復合體的本構模型，然後通過大量室內試驗進行分析驗證； （ 2 ）引入有關滲流理論，即柯茲尼-卡爾曼（ kozeny - carman ）經驗公式，將滲透系數引進到土體本構關系中。 -
Thus, the piping - induced failure of two - layer foundation was verified as that ： mass flow firstly appears in the upper weakly permeable layer, and then underground erosion and scouring gradually occur from downstream to upstream between the serviously and weakly permeable layers
從而驗證了二元結構堤基的滲透破壞模式為：首先在上層弱透水層中發生流土，然後在強、弱透水層之間發生自下游向上游的逐步潛蝕沖刷。 -
The cold heavy oil production ( chop ) technology can be applied to form in - situ high permeable channels by mass sand inflow and allow the heavy oil to be produced by means of foam - oil effects
而稠油出砂冷采技術通過大量出砂形成高滲流通道，並藉助于泡沫油的作用等機理來開采稠油油藏，可以較好地解決熱采中遇到的問題。 -
The jinan spring catchment is a complicated karst water system, the following major work had been done in order to discuss the proplem of spring protection and water supply. 1. having conduced exploration, experiment and comprehensive research, the southern boundary of the jinan spring catchment is determined to be the surface water divide ( changecheng mountain ), the source of yufu river and baedasha river ; the northern one is the carbonniferous and permian strata, together with the igneous rock mass in the north of jinan, and the eastern and the western ones are dongwu and mashan faults respectively, which are weakly permeable boundaries. the total area of the spring catchment is 1486 km2
濟南泉域為一復雜的巖溶水系統，為了探討保泉供水問題，主要做了以下工作： （一）經過勘查、試驗和綜合研究確定濟南泉域邊界是：南邊界為玉符河、北大沙河源頭的地表水分水嶺（即長城嶺） ；北邊界為濟南北部的石炭、二迭系煤系地層和巖漿巖體；東、西兩側分別以弱透水的濟南東部的東塢斷裂和西部的馬山斷裂為邊界。 -
4 were calculated in curved tube with permeable arterial wall and effects of parameters, such as shear stress, mass flux of arterial wall, on mass transfer were studied. it was found that steady laminar flow become unsteady with the increase of de. the concentration in inner section of transverse section of the tube is higher than other areas, and with the increase of de and pe, the concentration there increase obviously. it indicates that for the permeable arterial wall, the macromolecules are likely to gather in the areas where axial velocity and shear stress are relatively low, thus indicates why location of atherosclerosis frequently occurs at inner side of curved tube
4 ，在可滲透邊界條件下彎曲血管內的濃度場分佈，並分析了諸如壁面剪應力及跨壁流量等參數對傳質的影響。計算表明隨著dean數的增加，定常層流開始失穩。血管截面內側區是濃度分佈較高區域，並且隨著dean數和peclet數的增加，內側區濃度明顯增大。
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