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seasonal frozen
相关语句
  季节冻土
    Annual Change and Abrupt Change of the Seasonal Frozen Soil in Xinjiang,China during 1961-2002
    1961—2002年新疆季节冻土多年变化及突变分析
短句来源
    Annual mean ground temperature increases about 0.3~0.7℃ in island permafrost and seasonal frozen ground areas ,and about 0.1~0.4℃ in predominantly continuous permafrost area.
    岛状多年冻土和季节冻土区年均地温升高约0 3~0 7℃,大片连续多年冻土区升幅较小,为0 1~0 4℃。
短句来源
    Analysis of the Cause of the Differentia in Interannual Variation BetweenSnow Cover and Seasonal Frozen Soil in the Tibetan Plateau
    青藏高原冬春积雪和季节冻土年际变化差异的成因分析
短句来源
    A New Method of Observing Delamination Frost- heave Amount and Its Applicability in the Seasonal Frozen Area
    一种新的分层冻胀量观测方法及其在季节冻土区的应用(英文)
短句来源
    Based on the analysis of earthquake damages in Dedu County of Heilongjiang Province and the experimental data from dynamic triaxial stress strain test of frozen soil in low temperature, this paper presents the necessity of research of the dynamic characters of seasonal frozen soil, and gives out the calculated result of the values of elastic modulus, Poisson′s ratio, shear modulus and damping ratio of frozen soil under dynamic conditions,and also their relations with temperature of frozen soil and frequency of cyclic loading.
    在分析黑龙江省德都县震害基础上,提出季节冻土动力特性研究的必要性。 根据大量低温动三轴应力-应变实验资料给出冻土的动弹模量、动泊桑比、动剪切模量、动阻尼比的数值及它们与冻土温度、振动频率的关系。
短句来源
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  “seasonal frozen”译为未确定词的双语例句
    In this paper, the data of the average and maximum depths of seasonal frozen earth and the frozen duration of soil at 10 cm in depth in Xinjiang during the 40-year period of 1961~2002 are analyzed.
    根据对新疆40年(1961-2002年)冬季平均冻土深度、最大冻土深度、土壤10cm深度封冻时段资料分析表明.
    Analysis on the Multi-annual Change and Saltation of Seasonal Frozen Earth in Xinjiang
    新疆季节性冻土多年变化及突变分析
    It is not cold enough to form permafrost. According to the temperature measurement from pits and boreholes (in July 1992), the ground temperature is 5 0~8 4℃ in the depth of 1 0~2 2 m, and shallow ground water temperature is 6 0~7 8℃. The seasonal frozen depth is 1 0~2 0 m.
    据1992年7月间试坑和钻孔测温,在1.0~2.2m深处地温为5~8.4℃,浅层地下水温6.0~7.8℃,由此判断不存在多年冻土,季节冻结深度为1.0~2.0m。
短句来源
    Seasonal frozen soil is a special soil water system where ice and water coexist.
    季节性冻土是一种冰水共存的特殊土水体系。
短句来源
    CHANGES OF GROUND WATER AT THE FORWARD FARMS OF DUNES IN SEASONAL FROZEN GROUND AREA AND THEIR INFLUENCE ON AGRICULTURE
    季节冻土地带沙丘前沿农田地下水变化及其对农业的影响
短句来源
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  seasonal frozen
According to the spatial distribution of the third loading eigenvectors of (Ts-Ta) over the Qinghai-Xizang Plateau in cold season, the permafrost response region and the seasonal frozen ground response region are identified.
      
Seasonal frozen ground occurs in large parts of the territory in northern China, including Northeast, North, Northwest China and the Tibetan Plateau except for permafrost regions, and accounting for about 55% of the land area of China.
      
The seasonal frozen soil on the Qinghai-Tibet Plateau has strong response to climate change, and its freezing-thawing process also affects East Asia climate.
      
Anomaly feature of seasonal frozen soil variations on the Qinghai-Tibet Plateau
      
Permafrost with MAGT higher than-2°C will turn into seasonal frozen soils and even unfrozen soils.
      
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At the present time two kinds of fossil ice margins have been found, con-gelifolds and fossils sand (loess) wedges in the strata of the studied area. The former is mainly found in the limnetic strata at the top of the Salawusu Group(Q31), The middle Chengchuan Group (Q32-2), The middle and the lower Dagouwan Group (Q43) and at the bottom of Dishaogouwan Group (Q43) along the Salawusu He in the southeastern depression Among them the middle Chengchuan Group is the largest and the widest.Besider, it can also be...

At the present time two kinds of fossil ice margins have been found, con-gelifolds and fossils sand (loess) wedges in the strata of the studied area. The former is mainly found in the limnetic strata at the top of the Salawusu Group(Q31), The middle Chengchuan Group (Q32-2), The middle and the lower Dagouwan Group (Q43) and at the bottom of Dishaogouwan Group (Q43) along the Salawusu He in the southeastern depression Among them the middle Chengchuan Group is the largest and the widest.Besider, it can also be found in certain horizons along the wuding He, Lu He, Hailuitu He, yulin He and Salawusu He near the loess hilly areas. The latter is mainly presented in the Tertiary mud stone or red earth, in the lower-middle Pleistocene loess or the lower part of the late Pleistocene sand (earth) gravel layer and on the top of the middle Chengchuan Group in the central-western dry denuded upland and the flat and lower areas on the low ridge land of its extending part to the depression.According to the morphological characteristics of the profile, these folds and wedges had not any relation to the genesis of tectonic movement fluvial-erosion, accumulation, glacier, mudflow, hard press of landslide and drying crack of ground surface, but to the stratum deformation or disturbance caused by seasonal nonhomogeneous melting and freezing processes for a long time in the frozen eartn area.The big or medium type of nondeveloped congeli-folds (mainly situated in the upper late pleistocene strata) and sand (loess) wedges(situated in the middle and lower profile)were related to the seasonal process of the permafrost and the other congelifolds located in the middle and lower Holocene strata and the small type of sand (loess) wedges located in the upper profile might possibly be formed under the condition of the deep seasonal frozen earth and even the other year's frozen earth.According to the relation of the phenomenon of fossil ice margins with the existing horizon and the physterogenetic or contemporaneous association of over-rlying eolian sand or loess, and referring to the measured data of absolute age of the strata concerned, it is roughly determined that the congelifolds on the top of the Salawusu Group, in the middle Chengchuan Group, the middle and lower Dagouwan Groop and at the bottom of Dishaogouwan Group were formed at the early and late sections of the late stage of the late pleistocene of 70,000 and 25,000 years B.P.and the mid-late stage and at the beginning of the late stage of the Holocene of 5000 years or 3200 years and 2300 years B.P.respectively, the situation of sand (loess) wedges was very similar to the above-mentioned situation.These periods correspond to the early Yumu glacial epoch, the late Yumu glacial epoch and the beginning of new glacial epoch and the small glacial epoch.It shows that during these periods the studied area was influenced by the fluctuation of cold weather of the four glacial epochs of the Northern Hemisphere.The above-mentioned data of fossil ice margins have provided new reliable evidences for the reconstruction of the ancient climatic environment, the division of climatic strata, the comparison and the prode in the genesis in the study area since late pleistocene.The study suggests that the study area at the early and late sections of the late stage of late pleistocene and the mid and late Holocene or late Holocene was island-like permafrost and deep seasonal frozen earth or the other yearxs frozen earth area at the southern periphery of the continuous permafrost zone,the climate then was generally dry and cold and there was much northwest wind;eolian sand or loess and the deposition of fluviolacustrine facies or fossil soil belonged to the products of dry and cold ice margins or near ice margin environment and warm wet non-ice margin environment respectively, since late pleistocene the study area had undergonemany times of climatic fluctuation of the replacement of ice margin of warm wet facies with that of dry cold facies.The main cause was that the study area was situated in the transitional

本文概述了鄂尔多斯高第三系至全新统地层中融冻(衤习)皱和沙(土)楔两类古冰縁现象的分布与形态特征,探索了它们的成因以及同所在地层和上覆风成沙或黄土的关系,並对古冰縁现象的气候地层学意义作了讨论。

The seasonal frozen ground developpe widely in Heilongjiang. The general law of distribution is that the frozen depth expands from the southeast to the northwest gradually, ranging from 1. 8~2. 0m to 2. 6~2. 8m.The seasonal frozen ground is formed under the conditions of negative temperature, the lower the temperature the greater the depth of seasonal frozen. The maximum depth of the seasonal frozen ground becomes shallower with the decrease of latitude and it increases about 35cm...

The seasonal frozen ground developpe widely in Heilongjiang. The general law of distribution is that the frozen depth expands from the southeast to the northwest gradually, ranging from 1. 8~2. 0m to 2. 6~2. 8m.The seasonal frozen ground is formed under the conditions of negative temperature, the lower the temperature the greater the depth of seasonal frozen. The maximum depth of the seasonal frozen ground becomes shallower with the decrease of latitude and it increases about 35cm while the latitude rises 1?. The depth of seasonal frozen ground is also changed with the change of altitude. (In the same latitude zones). Generally, the depth of the seasonal frozen ground increase 3.35cm while the altitude rises 10m.It's Hazards consist of: (1) Phenomena of frost boil; (2) Phenomena of frost heaving and subsidence of the foundation of buildings; (3) Phenomena of frost cracking.Measures of preventing and protecting for its damage consist of: (1) Doing the prospecting work well; (2) The foundation should be laid below the seasonal ground layers; (3) Exchanging soils and padding the foundation with sands; (4) We must select site and handle the foundation well for roads. (5) Water must be well drained.

本文论述了黑龙江省季节性冻土分布特征,分析了气温、纬度、海拔高程等与季节性冻土深度的关系,列举了道路翻浆、建筑物基础冻胀融沉、冻裂等季节性冻土的灾害现象,并提出了防害措施。

The seasonal freeze-thaw action is one of important external agencies and inducing factors of slope deformation, failure in the north-west of China. It cause not only failure on the surface of slope strongly, but also the frozen perched water effect in the depth of slope. The effects are: 1) collect the groundwater 2) enlarge the soften range of soil mass 3) increase the dynamic and hydrostatic pressure It impels the large scale entire deformation, failure of slope as well as collapse, landslide....

The seasonal freeze-thaw action is one of important external agencies and inducing factors of slope deformation, failure in the north-west of China. It cause not only failure on the surface of slope strongly, but also the frozen perched water effect in the depth of slope. The effects are: 1) collect the groundwater 2) enlarge the soften range of soil mass 3) increase the dynamic and hydrostatic pressure It impels the large scale entire deformation, failure of slope as well as collapse, landslide. So the freeze-thaw season is also the frequency duration of serious landslides hazards in this area. Therefore, the research on the seasonal freeze-thaw action and the entire deformation, failure of slope will be great helpful to monitor, forecast and protect the hazards of collapses and landslides in this area.

季节性冻融作用是斜坡变形破坏的重要外动力因素和促发因素之一,不但在斜坡表层产生强烈作同,而且可引起斜坡深处地下水富集,土体软化范围扩大,静、动水压力增大等冻结滞水效应,促使斜坡整体性大规模变形破坏,促发崩塌、滑坡发生,冻融季节也是重大滑坡灾害的多发时期。研究季节性冻融作用与斜坡整体变形破坏,将有助于崩塌、滑坡灾害的监测预报和防治。

 
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