1) soil freezing heave/thawing settlement
土壤冻胀融沉
2) frost heaving and thaw collapsing
冻胀融沉
1.
The burying depth of many bungalows bases in corps farm company is usually under the frozen line Under frost heaving and thaw collapsing circumstance,such freeze injury destroying phenomena as crack and partial inclination are common The reasons for these were investigated and analyzed in the paper Meanwhile,seven concrete tacking methods were purposely put forwar
兵团农场连队平房建筑居多,基础埋深一般小于冻结深度,在冻胀融沉条件下出现裂缝、倾斜等冻害破坏现象较为普遍。
3) frost heaving of soil
土壤冻胀
1.
The difficulties in the establishment and solution for mathematical model of frost heaving of soil are introduced.
介绍了土壤冻胀数学模型建立及求解的难点 ,综述了国内外有关土壤冻胀的数学模型研究的现状 ,展望了在土壤冻胀数学模型研究领域中需进一步改进和完善的方向及有关的发展趋
5) soil freezing and thawing
土壤冻融
1.
Review of the study on land surface process in soil freezing and thawing;
土壤冻融条件下的陆面过程研究综述
2.
Coupled model of moisture and heat reaction during soil freezing and thawing under environmental climate condition
环境气候条件下土壤冻融过程中湿热耦合作用模型研究
3.
Using the model of simultaneo us moisture and heat transfer during soil freezing and thawing, a numerical sumulation is carried out to the whole course of freezing and thawing in Hetao irrigation areas in Inner Mongolia Autonomous Region.
应用土壤冻融过程中水热耦合迁移模型,对内蒙古河套灌区地下水浅埋条件下整个土壤冻融过程进行了模拟,分析了越冬期土壤水热迁移规律。
6) freezing and thawing soils
冻融土壤
1.
BP network model research on water and salt transfer forecast in seasonal freezing and thawing soils;
季节性冻融土壤水盐动态预测BP网络模型研究
补充资料:冻土融沉
冻土融化时的下沉现象。包括与外荷载无关的融化沉降和与外荷载直接有关的压密沉降。
冻土融化时发生着两个相反的过程:压密和膨胀。①冻土中的各种冰融化后体积缩小,使土因自重下沉;冰变成水后通过孔隙逐渐排出,使土压密而进一步下沉。②土粒及其集合体在融化时由于水化作用而膨胀。通常情况下,冻土融化时的压密大于膨胀,故产生融化下沉。当整体冷生构造的冻土融化时,其融沉量一般不大。但层状和网状冷生构造的冻土融化时,常有明显的沉降,有时会发生突陷。当冻土的融化速度很快时,会出现冰变成水的速率大于水能从土中排出的速率,从而使土中的孔隙压力增加,常造成斜坡和各种建造物的不稳定。融沉是多年冻土区建造物破坏的主要原因。在天然情况下,冻土的融沉会形成各种热喀斯特现象(见冰缘地貌)。
冻土融化时发生着两个相反的过程:压密和膨胀。①冻土中的各种冰融化后体积缩小,使土因自重下沉;冰变成水后通过孔隙逐渐排出,使土压密而进一步下沉。②土粒及其集合体在融化时由于水化作用而膨胀。通常情况下,冻土融化时的压密大于膨胀,故产生融化下沉。当整体冷生构造的冻土融化时,其融沉量一般不大。但层状和网状冷生构造的冻土融化时,常有明显的沉降,有时会发生突陷。当冻土的融化速度很快时,会出现冰变成水的速率大于水能从土中排出的速率,从而使土中的孔隙压力增加,常造成斜坡和各种建造物的不稳定。融沉是多年冻土区建造物破坏的主要原因。在天然情况下,冻土的融沉会形成各种热喀斯特现象(见冰缘地貌)。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条