凍下土 的英文怎麼說

中文拼音 [dòngxiàtǔ]
凍下土 英文
subgelisol
  • 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...
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  1. The result of experiment shows that und er the conditions of proper ai r - entraining, concrete with 20 % fly ash has excellent frost - resistance. the frost - resistance of concrete with 55 % fly - ash which is admixed with united expansive agent ( uea ) has been improved greatly. the frost - resistance of sulfate aluminate cement concrete with high volume of fly - ash is dramatically lower than that of silicate cement concrete with the same volume of fly - ash

    試驗結果表明：粉煤灰摻量為20的混凝土在適量引氣的條件下具有良好的抗鹽凍性能；粉煤灰摻量為55的混凝土在摻加uea膨脹劑后其抗鹽凍性能有明顯改善；大摻量粉煤灰硫鋁酸鹽水泥混凝土的抗鹽凍性大大低於同摻量的硅酸鹽水泥混凝土。
  2. The research results show that when the fly ash content is under 30 %, the strength of rcc can be increased but the effect is a little ; and with the fly ash content increased the dry shrinkage of the rcc reduced straightly, and the abrasion resistance and freeze resistance increased obviously. ( 3 ) fly ash can increase durability of the rcc and under the experiment condition, the perfect mixing content is 30 %

    試驗結果表明： （ 1 ）粉煤灰摻量小於30 %時能提高碾壓混凝土強度但影響度不大； （ 2 ）隨著粉煤灰摻量的增加，碾壓混凝土的干縮呈直線降低，且抗磨性和抗凍融能力明顯提高； （ 3 ）粉煤灰能有效提高碾壓混凝土的耐久性，且在試驗條件下的最佳摻量為30 % 。
  3. Following is the factors ideating with the surface of old concrete in different way ( including brushing surface, chiseling surface, cleaving surface ), adherence agent ( including cement slurry, cement sand slurry, cement slurry with the u expansion agent ), the freeze - thaw circulation times and air - entraining. as a result, we found that the roughness influence on the adhesion capability of the new on old concrete to a large degree. the larger rougeness is, the larger the splitting tensile strength on the adhension face is. the kind of adhesion agent is also influence on the adherence capability of new on old concrete. the circulation times of freez - thaw have a large influence on the splitting tensile strength of adherence face of new on old concrete. the analysis of tests give some advices to the practical engineering

    主要考察了老混凝土表面不同處理方式（刷毛面，鑿毛面，劈裂面） 、界面粘結劑類型（水泥凈漿，水泥砂漿， u型膨脹劑水泥漿） 、凍融循環次數等對新老混凝土粘結面劈拉強度的影響，以及凍融作用下新混凝土加氣對粘結面劈拉強度的影響。試驗結果表明，粗糙度對新老混凝土粘結性能有重要影響，隨著粘結面粗糙度的增大，粘結面劈拉強度不斷增加；界面粘結劑類型對新老混凝土粘結性能有一定影響，在凍融作用下， u型膨脹劑水泥漿粘結效果不如水泥凈漿和水泥砂漿；凍融循環對粘結面劈拉強度有較大影響，加氣能明顯改善新老混凝土粘結面的抗凍能力。
  4. Perhaps this is caused by the sudden melting of subsurface permafrost.

    可能是地下永久凍土突然融化所造成。
  5. The harder the material under the permafrost is, the larger the chamber charge required.

    永凍層之下的土壤越硬，所需要的藥室裝藥量也越大。
  6. There is an annual movement of salt with water in coastal solonchak in liaoning as follows : the thawing - evapo - salinization period in spring, irrigation - leaching - desalting period in rice growing season from may to september, evapo - salinization period again in late fall and relatively stable period in winter

    遼寧沿海鹽土中鹽分每年隨水移動如下：春季為凍融-蒸發-鹽化期， 5 ~ 9月為灌溉-淋洗-脫鹽水稻種植期，晚秋為蒸發-鹽化期，冬季為相對穩定期。
  7. It can be applied to break firm and freezed ground in civil engineering, substruction and civil air defence works and so on

    土木工程及地下建築，人防施工等工作中摧毀堅固凍結的地層。
  8. The first geologic reason for degeneration of the eco - environment in the headwater area of the yellow river is that the increase of the recent geologic function caused desertification and grasslands resource decreased and underside changed, destroied the balance of water - air - heat in the area ; the second is that the water environment changes by the degradation and atrophy of frozen earth cause multilayer and synthesis cause of formation degeneration of the eco - environment ; the third is that the man and rats function accelerated degeneration of the eco - environment in the headwater area of the yellow river

    摘要黃河源區生態環境惡化的地質原因之一是現代地質作用增強，形成以荒漠化為主的草地資源退化與下墊面改變，地區水氣熱平衡破壞；二是因凍土退化、萎縮，引起水環境變異，導致多層面與綜合成因的生態環境惡化；三是人為及鼠類活動對源區生態環境惡化起著推波助瀾的作用。
  9. Abstract : the result of experiment shows that und er the conditions of proper ai r - entraining, concrete with 20 % fly ash has excellent frost - resistance. the frost - resistance of concrete with 55 % fly - ash which is admixed with united expansive agent ( uea ) has been improved greatly. the frost - resistance of sulfate aluminate cement concrete with high volume of fly - ash is dramatically lower than that of silicate cement concrete with the same volume of fly - ash

    文摘:試驗結果表明：粉煤灰摻量為20的混凝土在適量引氣的條件下具有良好的抗鹽凍性能；粉煤灰摻量為55的混凝土在摻加uea膨脹劑后其抗鹽凍性能有明顯改善；大摻量粉煤灰硫鋁酸鹽水泥混凝土的抗鹽凍性大大低於同摻量的硅酸鹽水泥混凝土。
  10. During analysis of former edge slope stabilization, it is not especially that affects of freezing - melting eroding to edge slope to slide. the thesis puts forward beiyin channel was destroyed by cold freezing eroding, freezing - melting and runoff of melting snow ect

    本文提出北引渠道由於地處高寒和多年凍土地區，在寒冷剝蝕、凍融剝蝕以及融雪徑流等的動力作用下，渠道將發生較為嚴重的破壞。
  11. The performance of concrete at the later age ( after 60 days ) is improved when fly ash is added into concrete, and the abrasion resistance of concrete is perfect at 28 days. entraining air into concrete, the compressive strength is reduced but the flexural strength is improved when the air content less than 5. 5 %

    摻粉煤灰混凝土的各項性能在後期（ 60d后）均有所改善，其中耐磨性在28d時表現了較好的結果。在混凝土中引氣后，混凝土的抗壓強度下降較多但抗折強度在適宜的含氣量范圍內（小於5 . 5 % ）有所提高，混凝土的抗凍性顯著提高，同時不會降低混凝土的耐磨性。
  12. Under the different freezing - thawing cycle circumstance, three factors of water binder ratio, air content and mineral admixture are analyzed by using the method of orthogonal table. the test results show that the chief influencing factor is the water binder ratio in water freezing - thawing cycle circumstance, and in salt freezing - thawing cycle circumstance is the air content. this could illustrate that entraining air into concrete can improve the frost resistance of concrete effectively in salt freezing - thawing cycle

    分析了在純水和3 . 5 % nacl溶液中受凍后，水膠比、含氣量和摻合料對混凝土飽和系數及變化速率的影響規律，試驗結果表明水膠比對混凝土水凍時的飽和系數及變化速率影響顯著，而鹽凍情況下含氣量則是主要影響因素，說明引氣能顯著提高混凝土的抗鹽凍性能。
  13. The test obsvervation include air temperature, ground temperature, foundation moisture, freeze depth, freeze capicity, freeze residual capicity, groundwater table and shape transform of canal lining, etc. throught systemic observation, analysis of impact about each factor on fundation freeze capicity, evaluate effect on anti freeze of various canal lining, comparison on technology and ecnomic of different method, a kind of main canal lining format is been recommended to engineering practice with siutable to ningxia local feature, fufilling the need of main canal safey i application, economic and practical, that is using polystyrene plate laying under concrete slate and grit taking replace of filling layer and optimizing design

    試驗觀測內容包括氣溫、地溫、基土含水量、凍深、凍脹量、凍脹剩餘量、地下水位和砌體外觀變化等項目。通過系統的觀測，分析各因素對基土凍脹量的影響，評價各種襯砌型式的防凍西安理工大學工程碩士專業學位論文脹效果，並進行技術和經濟綜合分析比較，推薦出了適合我區特點、滿足乾渠安全運行、經濟實用、防凍脹效果好的乾渠防滲襯砌型式，即混凝土板下鋪設聚苯乙烯板和砂礫石換填層結構型式，加以優化設計，用於工程實踐。
  14. Permanently frozen subsoil, occurring throughout the polar regions and locally in perennially frigid areas

    永凍土永久冰凍的下層土壤，出現在整個北極地區和部分長期寒冷的地區
  15. The strength of frozen soil will decrease obviously if it is thawed, especially when ice lens is abundant in it, which is the main cause of the mud pumping in subgrade as well as the instability of foundation in seasonal frozen ground regions

    摘要凍土，特別是含冰透鏡體的凍土解凍時，出現強度大幅度下降的弱化現象，這是季節凍土區內路基春季翻漿冒泥、地基失穩的重要原因。
  16. Landforms, soil, climate and characteristics of distribution in time and space in ningxia of draughts, disasters caused by wind and sand, floods and waterlodgging caused by hail, frost injury and earthquakes. the eighth chapter is on the relationships of environmental changing and the development of the agriculture and livestock husbandry in ningxia autonomous region which covers two sections : namely the historical processes of the human activities and the changing of the forests in ningxia, and the human activities and spreading of the deserts. the ninth chapter is a chapter that studies the regional divergence of the productivity level and the experiences and lessons of the development of agriculture and livestock husbandry

    下篇是寧夏農牧業發展等因素與環境變遷的關系，這又包括三章：第七章是農牧業發展的自然條件，即地貌、土壤、氣候，以及歷史時期寧夏旱災、風沙災害、水澇災害、雹災、霜凍災害、地震災害的時空分佈特徵；第八章是寧夏農牧業發展等因素與環境變遷的關系，這包括人類活動與寧夏森林的變遷、人類活動與寧夏土地沙漠化的歷史演進兩部分；第九章是寧夏南、北農牧業生產力水平的地區差異及農牧業開發的經驗教訓。
  17. Results showed that the temperature distribution of the traditional embankment was asymmetrical ; the asymmetrical status was changed after ripped - rock revetment was installed and the soil under the ripped - rock was cooled obviously ; the ripped - rock revetment could cool embankment and adjust the temperature difference between the north - facing slope and the south - facing slope ; the ripped - rock revetment was an available technique to protect embankment from thawing settlement and longitudinal cracks in permafrost regions

    結果表明：普通路基的陰陽坡兩側溫度分佈極不對稱；鋪設拋石護坡后，這種狀況得到了很大改善，並且拋石護坡下土體溫度明顯降低；拋石護坡能夠降低路基溫度和調節路基陰陽坡的溫度差異；拋石護坡是多年凍土區防治路基融沉和縱向裂縫病害的一種可行措施。
  18. In this paper, based on the tracing field infiltration tests into frozen and unfrozen soils with three species of soil texture and eight species of soil structure in seasonal frozen soil regions during three overwinters, the basic infiltration characteristics, reduction infiltration mechanism and major factors influencing soil infiltration characteristics are studied all - sidedly and systematically. to master frozen soil infiltration characteristics and supply scientific directions for winter irrigation

    本文基於季節性凍土區田間三種質地、八種結構歷時三個越冬期的凍土、非凍土入滲跟蹤試驗，全面、系統地研究了凍融土壤的入滲特性、阻滲機理和影響凍融土壤入滲特性的主要因素，掌握凍融條件下土壤水分入滲特性，為冬灌及農業節水灌溉提供科學依據。
  19. Ground water table influences the infiltration capacities of frozen soils by its influence on ground soil moisture

    地下水位對凍融土壤入滲能力的影響通過對土壤含水量的影響實現。
  20. The varying procedure of the infiltration capacities of frozen soils within a year is in keeping with second - degree polynomial functions and the varying procedure of the infiltration capacities of frozen soils within a day corresponds with third - degree polynomial functions

    凍結土壤的入滲能力明顯小於相同條件下非凍結土壤的入滲能力，其年變化過程符合二次多項式關系，日變化過程符合3次多項式關系。
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