impervious soil 中文意思是什麼

impervious soil 解釋
不可滲透的土壤
  • impervious : adj. 1. 不可滲透的，穿不過的，透不過的。2. 不受干擾的，不受影響的。3. 對（批評等）無動於衷的，不接受的。adv. -ly ,-ness n.
  • soil : n 1 泥土，土壤；土質。2 土地，國土。3 滋生地，溫床。4 農業生活，務農。n 1 臟東西，污物，污穢，污...
  1. Broken gravel soil as impervious material for rockfill dam with core

    石土作為心墻堆石壩防滲土料的初步研究
  2. In this article the conclusion was got from some experiments and researches that the crux of the matter is to solve the seepage stability of the soil and it is possible that gravelly soil is made into impervious core with the protection of filter

    但是存在土料的含礫量不均勻、粘粒含量低、滲透系數偏大、天然含水量偏低、塑性較差等缺陷。試驗研究還認為，只要解決好滲透穩定問題，做好反濾保護，礫質土作心墻防滲體是可行的。
  3. At present, with the development of land, there appear many phenomenon that soil structure was deteriorating, soil was getting hardened and impervious, black soil layer was getting thinner

    黑土是我國的主要耕作土壤，目前隨著土地的開發，一些地區土壤結構破壞，板結嚴重，黑土層變薄，地力減退。
  4. For impervious layer, the anti - inrushing stability of the pit is analyzed from the plastic damage of soil, but for semipervious layer, the anti - inrushing stability of the pit is analyzed from the seepage damage of soil

    坑底為不透水層土時，應從土體發生突涌塑性破壞的角度進行分析；坑底為弱透水層土時，應從土體發生突涌滲透破壞的角度進行分析。
  5. The gravelly soil is a better kind of damming material. it ' s usually used as impervious core and also as dam shell

    礫質上是一種良好的築壩材料，既能作防滲材料，又能填築壩殼。
  6. The condition of water pressure acting on the both sides of cement - soil retaining wall is researched by computing the seepage field around the wall. it is illustrated that the coefficient of water pressure, which isn ' t constant along the height, is affected seriously by some factors, e. g., the distribution and relative hydraulic permeability of the soil beside the wall, the hydraulic permeability of its foundation, and the buried depth of the impervious layer. as a whole, the lateral pressure acting on the wall based on seepage is always smaller than that without regard to seepage in the non - excavated zone. moreover, the pressure based on seepage is greater than that without regard to seepage in the excavated zone if the coefficient of passive pressure is smaller than 1. 176. this case is of great advantage to the stability of the wall

    通過計算水泥土擋土墻周圍的滲流場，研究了墻側水壓力的變化規律.結果表明：水壓力系數沿高程並非常數，且受到墻側土層分佈及其相對透水性、墻基土的透水性和下臥不透水層埋深等因素的嚴重影響.總體來說，考慮滲流時墻后的側壓力總小於不考慮滲流時的相應值，且當墻前的被動土壓力系數較小時，考慮滲流時該側的側壓力則大於不考慮滲流時的相應值，因此，這種情況有利於擋土墻的穩定
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