凍脹性質 的英文怎麼說
中文拼音 [dòngzhàngxìngzhí]
凍脹性質
英文
heaving properties- 凍 : Ⅰ動詞1 (液體或含水分的東西遇冷凝固) freeze 2 (受冷或感到冷) feel very cold; freeze; be frostb...
- 脹 : 動詞1. (膨脹) expand; dilate; inflate 2. (脹大) swell; distend; bloat
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 質 : Ⅰ名詞1 (性質; 本質) nature; character; essence 2 (質量) quality 3 (物質) matter; substance;...
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The slity soil has the greatest frost heave strength in all of soil and the aerolian sandy soil belongs to it, so it is necessary to the study on frost heave mechanics of aeolian sandy soil and measure of prevent frost heave in railway construction
風積砂土屬于粉質土,而粉質土的凍脹強度是最大的,因而對風積砂土的凍脹性及其對鐵路危害的研究是非常有必要的。It was shown that salt expansion value of low liquid - limit clay was accumulated before the sixth freezing and thawing cycles, but the increment of salt expansion was reduced gradually with increasing cycles ; the salt expansion accumulation of low liquid - limit clay could be separated into three phases ; the deformation of clayey sand was mostly frost heave and subsidence under cycles, and collapsibility value of clayey sand was accumulated with increasing cycles ; the variation of salt expansion ratio and collapsibility ratio was a parabolic function of freezing and thawing cycles
試驗結果表明:低液限粘土前五次凍融循環過程中鹽脹具有較好累加性,隨著凍融循環次數的增加,鹽脹量增長速度逐漸降低;含砂低液限粘土的鹽脹過程可以被分為三個階段;粘土質砂在凍融循環過程中的變形主要為凍脹和沉降變形,具有較好的溶陷累加性;低液限粘土、含砂低液限粘土的鹽脹率和粘土質砂的溶陷率與凍融周期之間的關系符合二次拋物線變化規律。In the area of seasonal frozen region, the road takes place the cycle of freezing and thawing variety with the season, the mainly disease harm generating from this is the frost heave and frost boiling etc. . the disease harm belongs to the heat transfer problem, but the effective measure to prevent and cure the frost boiling has something to do with the gradient of temperature and humidity
在季節性凍土地區,道路隨季節交替發生凍融循環變化,由此產生的病害主要是凍脹和翻漿等。病害的形成歸根結底屬于熱質遷移問題,而防治凍脹與翻漿的有效措施無不與溫度和濕度有關,搞清冬季凍結過程道路結構體系溫度、濕度及應力的狀況,是正確設計路基路面,防治凍脹和翻漿的先決條件。The numerical simulation indicate that it promote permafrost growth and accelerate the course of recover frozen greatly after fluting via natural convection dropping temperature effect, the top line of permafrost rises greatly, consequently enhance pile bearing capability and so do the capability for resisting frost heaving and thaw settlement
數值模擬分析的結果表明,樁身刻槽后,利用多孔介質自然對流降溫效應,促進了凍土的發育,使樁的回凍時間大為縮短;凍土上限大幅度抬升,從而使得樁的承載力提高,抗凍脹融沉性能提高。In this paper, the calculating model for coupling function of water movement and heat conduction in subgrade is established based on the theory of continuum mechanics and the thermodynamics. the load function ’ s influence to frost heave is qualitative consideration in the model. the relationship of moisture content and temperature change with time and depth is calculated by use of matlab
本論文基於連續介質力學和熱力學理論,建立了路基土的水分運移和熱傳導耦合模型,並定性的考慮荷載對凍脹性的影響,利用matlab數值計算軟體,求解出了路基土在凍結過程中的含水量和溫度在不同時間隨深度的變化關系。The study on frost heave is always a hot subject in the frozen soil research field, it has great difference in frost heave characteristics to each kind of soil
土體凍脹一直是凍土研究領域的熱門課題,不同性質土的凍脹特性有很大差異。分享友人