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- The lengthwise cracks caused by frost heave,and settlem ent, bulge, rut caused by spring thaw are the main forms of frost damage of roa ds in seasonally frozen soil region. 冻胀形成的纵向裂缝和道路翻浆导致的沉陷鼓包及车辙变形是季节冻土区高速公路路基冻害的主要形式。
- The effect of the result of teston mineral component was analyzed qualitatively by the test of frost heave, thawing settlement and creep consolidate. 并根据冻胀试验,融沉试验以及人工冻融土的蠕变固结试验,定性地分析人工冻融土的矿物成分对其试验结果的影响。
- A dynamic module damage model was built to predict the dynamic strength and maximum dynamic module of the silty clay after every freeze thaw cycle. 建立了动模量损失模型,能够预测每一次冻融循环后的动强度和最大动模量。
- Based on the ideal of stochastic medium, the ground ridging induced by frost heave submits to normal distribution. 摘要根据随机介质的思想,土体冻胀引起的地表隆起近似为正态分布。
- This paper introduces the road frost heave damage causes and prevention and control measures. 介绍了道路冻胀的破坏原因以及防治措施。
- The built prediction model is characterized by high precision, can be used to evaluate the effect of the freeze thaw cycles on the service life of the silty clay roadbed. 通过与试验对比可知,预测模型具有较高的精度,可以用来评估冻融循环对粉质黏土路基使用寿命的影响。
- Based on the hydraulics model, a large number of computations of frozen soil's frost heave with changeful boundary conditions were carried out. 摘要基于水动力学冻胀模型,对变化的边界条件下土体的冻胀量进行了大量计算。
- Critical water content of frost heaving. 土壤开始产生冻胀时的临界含水率。
- Resultant differential frost heaving and/or thaw settlement and other unpredictable causes might lead to pipeline rupture, erosion and consequent oil spilling. 受力不均匀对管道造成机械性破坏,管道破裂、泄漏现象不断发生。
- Objective To investigate the anti-chronic myeloid leukemia(CML) effect of cytotoxicity T lymphocytes(CTL) activated by dendritic cells(DC) pulsed with freeze thaw K562 lysates antigan. 目的研究K562冻融抗原负载的健康供者来源的树突状细胞(DC)诱导细胞毒性T淋巴细胞(CTL)体外杀伤慢性粒细胞白血病(CML)细胞的毒性效应。
- The effects of the hydrophilic monomer AA and initiator K 2S 2O 8 on the electrolyte stability, freeze thaw stability and mechanical stability for the copolymer(MMA/BA/AA) soap free emulsion(pH=8)have been studied. 研究了亲水性单体AA和引发剂K2 S2 O8用量对三元共聚物 (MMA/BA/AA)无皂乳液 (pH =8)的电解质稳定性、冻融稳定性和机械稳定性的影响。
- On the basis of the results obtained from comparison teats of fly ash soils and silty clay on dynamic strength under freeze thaw cycles, the dynamic strength was quantitatively analyzed. 摘要根据粉煤灰土和粉质黏土经过冻融循环后动强度的对比试验,对粉煤灰土和粉质黏土的动强度做出了定量分析。
- In this experiment PST lipsome was produced by freeze thawing method. 采用冰冻熔融法制备脂质体,包封率进行测定可达29%25。
- Standard Test Methods for Frost Heave and Thaw Weakening Susceptibility of Soils 土壤的冻胀和降低溶解敏感性的标准测试方法
- Recent Studies of Concrete to Freeze Thaw Damage 混凝土冻融破坏研究现状
- Frost heave causation and prevention in roadbed 路基翻浆产生原因及防治
- Frost Heave in Big U-shaped Concrete Canals 大U形混凝土渠道冻胀试验
- freeze thawing and frost boiling 冻融翻浆
- salt expansion and frost heave force 盐胀和冻胀力
- frost heave and thawing subsidence 冻胀融沉