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   风吹雪 在 铁路运输 分类中 的翻译结果: 查询用时:0.855秒
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风吹雪
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  drifting snow
    Study on the Drifting Snow Disaster along Railway and Preventive Treatment
    铁路沿线风吹雪灾害及其防治研究
短句来源
    The mean value of the maximum wind speed is 14.0 m·s~(-1) in the drifting snow disaster frequently (occurred) region along Jinghe-Yining railway of Xinjiang. The maximum wind speed and the maximum snow cover depth occurred once every 30 years is 20.3 m·s~(-1) and 160 cm respectively. The average precipitation in winter is 153.2 mm.
    新疆精—伊铁路经过的风吹雪灾害多发区最大风速平均值为14 0m·s-1,30年一遇的最大风速与最大积雪深度分别为20 3m·s-1和160cm,平均冬季降水量153 2mm。
短句来源
    In drifting snow frequently occurred region, the adequate design height for railway embankment is 200-1 500 cm.
    在风吹雪害多发区,铁路路堤设计的适宜高度为200~1500cm。
短句来源
    In drifting snow frequently occurred region, the main type of drifting snow disaster is drifting snow deposition in cutting and secondly drifting snow deposition on low-fill embankment.
    在风吹雪多发区,铁路风吹雪灾害的主要类型是路堑型风吹雪沉积,其次是低填路堤型风吹雪沉积。
短句来源
    Drifting snow deposition easily occurs on low embankment, embankment with gentle slope and road surface.
    路堤低、路堤边坡平缓,路面上易发生风吹雪沉积;
短句来源
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  drift snow
    It is considered that the suitable height of subgrade for preventing drift snow disasters is in a range of 200~1500cm, and the drift snow deposition can easily occur on the pavement if the subgrade is lower than 200 cm;
    在风吹雪多发区,路堤防风吹雪的适宜高度为200~1500cm,路堤若低于200cm,路面易形成风吹雪沉积;
短句来源
  “风吹雪”译为未确定词的双语例句
    By field observation and laboratory investigation,the meteorologic elements and wind field changes along Jinghe-Yining Railway are analyzed. Results indicate that the mean value of the maximum wind speed is 14.0 m/s, the maximum wind speed and the maximum snowcover depth occurring once every 30 years are 20.3 m/s and 160 cm respectively, and the average precipitation in winter is 153.2 mm.
    实地调查、观测和对铁路沿线气象要素的分析与推算结果表明,在所研究的丘陵地区,最大风速平均值为14.0m/s,30年一遇的最大风速与最大积雪深度分别为20.3m/s和160cm,冬季平均降水量达153 2mm,为风吹雪灾害的发生提供了物质与动力条件。
短句来源
    Prevention of Windy Snow Disasters along Jinghe-Yili Railway Mountain Areas
    山区铁路风吹雪灾害的防治
短句来源
    It is suggested fences secondarily using corridors and lower wind-guiding boards mainly, and with side wind-guiding boards, snow-catching.
    在风吹雪多发区,风吹雪的主要危害类型是路堑型风吹雪沉积,其次为低路堤型风吹雪沉积等。
短句来源
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  snow drift
(3) Upper zone (snow drift avalanche zone): the movement of snow mantle creates disaster in this zone.
      
Calculations are made of the effects of thermal stability under a range of conditions, over the sea and land, on the physical factors (including the critical wind speed) affecting dust-storm generation, snow drift, and rough sea conditions.
      
The snow drift rate caused by creep, that is, by the ripple migration, was estimated to amount, at least, to 6% of the total snow drift rate.
      
Wind component fluctuations have been decomposed into contributions of large and small-scale eddies to study turbulence structures in the atmospheric surface layer over snow-covered pack ice for a case with snow drift and another without.
      
Impact Of Snow Drift On The Antarctic Ice Sheet Surface Mass Balance: Possible Sensitivity To Snow-Surface Properties
      
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  drifting snow
Nests were situated at sites which gave shelter from drifting snow or rain, from prevailing winds and from extreme radiation.
      
Transport rate of drifting snow and the mean wind speed profile
      
Snow ripples and their contribution to the mass transport in drifting snow
      
Morphological characteristics of snow ripples formed by drifting snow were investigated as functions of wind velocity in a cold wind tunnel at -15 °C.
      
However, the time variations of the turbulent kinetic energy and the friction velocity, determined by the small eddies, are suppressed when there is drifting snow.
      
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  drift snow
Air temperature averaged -14? C (range +2? to -29? C) and wind speed 11 ms-1 (range 0 to 22 ms-1); on half the days there was wind-blown ("drift") snow.
      
The distribution, biomass and species diversity of terrestrial lithic algae, mosses and lichens is influenced positively by availability of meltwater from drift snow and by additional nutrient supply (probably N and P) near bird nest sites.
      
Since the direction of prevailing wind in this area is northeast, thick drift snow is found in the lee side of icebergs and pressure ridges.
      


Snow disaster of three railway lines going to Tibet is introduced, and the significance of risk evaluation for avalanche in selecting the railway line and disposing avalanche protective facilities described. The main snow calamity of Qinghai-Tibet is snow drift, and that of Sichuan-Tibet and Yunnan-Tibet is avalanche. The requirements of avalanche formation are the thickness of snow and the slope angle. By theoretical calculation, the critical snow thickness and the critical slope angle are obtained. On the...

Snow disaster of three railway lines going to Tibet is introduced, and the significance of risk evaluation for avalanche in selecting the railway line and disposing avalanche protective facilities described. The main snow calamity of Qinghai-Tibet is snow drift, and that of Sichuan-Tibet and Yunnan-Tibet is avalanche. The requirements of avalanche formation are the thickness of snow and the slope angle. By theoretical calculation, the critical snow thickness and the critical slope angle are obtained. On the basis of analyzing the main factors affecting avalanche, the method of fuzzy-combining to one is used to evaluate the risk of avalanche and a foreign method is used to compute the probability of avalanche reaching point. The points need to be improved of the evaluation method and precautions in line selection are also suggested.

简要介绍了 3条进藏铁路的主要雪害 ,指出雪崩危险度评价对铁路选线和配置防护雪害设施有重要意义。青藏铁路的雪害主要是风吹雪 ,滇藏、川藏铁路的雪害主要是雪崩。雪崩的形成和发生的必要条件是一定深度的积雪和一定范围的坡度。笔者通过理论计算得出积雪的临界厚度和山坡的临界安全角度。在分析影响雪崩的主要因素的基础上 ,利用模糊归一化方法来评价雪崩的发生危险度 ,并引用国外方法来计算雪崩达到某点的概率。最后 ,指出雪崩评价方法需要改进之处和铁路选线时应注意的问题。

The mean value of the maximum wind speed is 14.0 m·s~(-1) in the drifting snow disaster frequently (occurred) region along Jinghe-Yining railway of Xinjiang. The maximum wind speed and the maximum snow cover depth occurred once every 30 years is 20.3 m·s~(-1) and 160 cm respectively. The average precipitation in winter is 153.2 mm. In drifting snow frequently occurred region, the main type of drifting snow disaster is drifting snow deposition in cutting and secondly drifting snow deposition on low-fill embankment....

The mean value of the maximum wind speed is 14.0 m·s~(-1) in the drifting snow disaster frequently (occurred) region along Jinghe-Yining railway of Xinjiang. The maximum wind speed and the maximum snow cover depth occurred once every 30 years is 20.3 m·s~(-1) and 160 cm respectively. The average precipitation in winter is 153.2 mm. In drifting snow frequently occurred region, the main type of drifting snow disaster is drifting snow deposition in cutting and secondly drifting snow deposition on low-fill embankment. Drifting snow deposition easily occurs on low embankment, embankment with gentle slope and road surface. While drifting snow deposition does not likely occur on cutting slope with small angle, deep cutting and the small inclination angle between the cutting strike and the prevailing wind direction is small. In drifting snow frequently occurred region, the adequate design height for railway embankment is 200-1 500 cm. The preventive treatment for drifting snow disaster should be focused on corridor and wind-inducing board and with side wind-inducing board and snow blocking wall, etc. as the secondary preventive treatment.

新疆精—伊铁路经过的风吹雪灾害多发区最大风速平均值为14 0m·s-1,30年一遇的最大风速与最大积雪深度分别为20 3m·s-1和160cm,平均冬季降水量153 2mm。在风吹雪多发区,铁路风吹雪灾害的主要类型是路堑型风吹雪沉积,其次是低填路堤型风吹雪沉积。路堤低、路堤边坡平缓,路面上易发生风吹雪沉积;路堑边坡的角度越小、路堑越深、路堑走向与主导风向的夹角越小,风吹雪沉积越不易发生。在风吹雪害多发区,铁路路堤设计的适宜高度为200~1500cm。风吹雪的防治应以设防风吹雪走廊和下导风板为主,并辅以侧导板和挡雪墙等。

By field observation and laboratory investigation,the meteorologic elements and wind field changes along Jinghe-Yining Railway are analyzed. Results indicate that the mean value of the maximum wind speed is 14.0 m/s, the maximum wind speed and the maximum snowcover depth occurring once every 30 years are 20.3 m/s and 160 cm respectively, and the average precipitation in winter is 153.2 mm. It is considered that the suitable height of subgrade for preventing drift snow disasters is in a range of 200~1500cm, and...

By field observation and laboratory investigation,the meteorologic elements and wind field changes along Jinghe-Yining Railway are analyzed. Results indicate that the mean value of the maximum wind speed is 14.0 m/s, the maximum wind speed and the maximum snowcover depth occurring once every 30 years are 20.3 m/s and 160 cm respectively, and the average precipitation in winter is 153.2 mm. It is considered that the suitable height of subgrade for preventing drift snow disasters is in a range of 200~1500cm, and the drift snow deposition can easily occur on the pavement if the subgrade is lower than 200 cm; the drift snow deposition may not occur if the subgrade slope is steep, the cutting slope is gentle, the cutting is deep, and the angle between the cutting strike and the prevailing wind direction is small. It is suggested to prevent and control drift snow disasters with corridors and lower wind-guiding boards mainly, and with side wind-guiding boards, walls for blocking drift snow deposition, etc.,secondly. Avalanche ocoures mainly in mountain region, avalanche occurred at south side of hill has low hazard, oppositely,avalanche at north side is more dangerous than that at south side. Railway should be built at south side of hill in these region, the buildings and facilities should be far away from the active area of the avalanch. At the opening,the tunnel should be elongated about 3 meters and guide-dike should be built at up-side; during construction of the project,the vegetation should not be destroyed.

实地调查、观测和对铁路沿线气象要素的分析与推算结果表明,在所研究的丘陵地区,最大风速平均值为14.0m/s,30年一遇的最大风速与最大积雪深度分别为20.3m/s和160cm,冬季平均降水量达153 2mm,为风吹雪灾害的发生提供了物质与动力条件。在风吹雪多发区,路堤防风吹雪的适宜高度为200~1500cm,路堤若低于200cm,路面易形成风吹雪沉积;若路堤的边坡较陡,则路面不易形成风吹雪沉积;路堑边坡的角度越小,路堑越深,路堑走向与主导风向的夹角越小,风吹雪沉积越不易发生;风吹雪的防治应以防风吹雪走廊和下导风板为主,并辅以侧导板、挡雪墙等防雪工程。雪崩灾害主要发生在崇山峻岭区,阳坡雪崩危害相对较小;阴坡雪崩危害大。铁路选线时明线工程最好选在阳坡,永久性建筑物或设施要尽量避开沟槽雪崩的运动区和堆积区。在所有的隧道出入口,隧道要再向外延伸3m,上方修建导雪堤;在工程建设过程中,要求尽少破坏铁路两侧的植被。

 
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