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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
    Soil Nailing Under the Influence of the Seasonal Frozen Soil
    季节冻土对土钉支护的影响
    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℃。
    Calculation of frost heave in seasonal frozen soil under piled foundation restrain condition
    桩基础约束条件下季节冻土场地冻胀量的二维数值求解
    Discussion stability calculation against frozen uplift for pile foundation in seasonal frozen soil areas
    季节冻土区桩基础抗冻拔稳定计算的探讨
    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
    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)
    Seasonal Frozen Soil and Its Effect on Vegetation Production in Haibei Alpine Meadow
    海北高寒草甸的季节冻土及在植被生产力形成过程中的作用
    Research on Structure of Anti-Seepage Channels in Seasonal Frozen Soil Region
    季节冻土区渠道防渗结构型式的研究
    In this paper,a theory of non-equilibrium thermodynamics is applied to the ecologic system offorest in zone of deep seasonal frozen soil on Mt. Maxian.
    本文采用非平衡态热力学理论,研究兰州马衔山深季节冻土区的森林生态系统,从研究森林演替入手得出生态环境演变的规律。
    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。
    Freezing and heaving damage prevention measures for pile and plate foundation and retaining wall in seasonal frozen soil zones were discussed.
    论述了季节冻土区桩基础、板基础、挡土墙三种类型水工建筑物抗冻胀措施。
    Annual hydrology activity of streamflow in the upper reaches of Heihe River can be divided into three periods due to the influence of ever frozen ground and seasonal frozen ground, and maximum runoff occurs during the snowmelt streamflow period in frozen ground.
    由于多年冻土和季节冻土的影响黑河上游河川径流年内水文活动可分为三个时期 ,多年冻土区最大径流产生于融雪径流期。
    According to fluctuation theory, considering soil nonlinearity, earthquake response spectrum answer is obtained. By using plane stratum earthquake response equivalent linearization program, earthquake response spectrum is calculated with different temperature and different overlay thickness on permafrost site and seasonal frozen soil site.
    根据波动理论考虑土体的非线性,得到地震反应谱的解答,应用求解水平层状场地地震反应谱的等效线性化程序,数值求解不同负温、不同覆盖层厚度多年冻土场地的地震加速度反应谱,季节冻土场地冬夏季地震加速度反应谱。
    Accordin g to the type of seasonal freezing,the seasonal frozen ground can been divided into intergradati on,semi -intergradation,long -term stability and stability.
    按季节冻结类型可把黑龙江省季节冻土分为过渡型、半过渡型、长期稳定型和稳定型等类型。
    According to the statistics about standard frost of the seasonal frozen soil area in China, it founds the relative mathematic model of standard frost and freezing index of the seasonal frozen soil area by the method on monadic regression analysis.
    以我国季节冻土区关于标准冻深的统计资料为依据,用一元回归分析的方法建立季节冻土区黏性土标准冻深与冻结指数的相关关系的数学模型。
    In this paper the cause of the differentia in interannual variation between snow cover and seasonal frozen soil in the Tibetan Plateau is analyzed by using conventional meteorological observations in 72 stations, including daily snow depth, frozen soil depth, air temperature, precipitation and ground surface temperature.
    利用青藏高原上72个常规气象观测站的逐日积雪厚度、冻结深度、气温、降水和地表温度资料,分析了高原积雪和季节冻土年际变化差异的原因.
    By analyzing the rule of temperature distribution in seasonal frozen soil area, the function of temperature with time is established.
    通过分析季节冻土区的温度分布规律,建立了温度随时间的变化函数。
    2) A long-term maintenance of the seasonal frozen soil is good for plant survivor and organism remaining in soil, which migrate with soil freezing and melting.
    2)季节冻土的长时间维持,有利于植物残体和土壤有机质留存于土壤,并随土壤冻结和融化过程发生迁移,可提高土壤肥力;
    The area of seasonal frozen soils and permafrost is rather wide in the province.
    研究表明:季节冻土和多年冻土在青海高原分布十分广泛;
 

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