shrinkage limit of soil

Soil shrinkage characteristics were analyzed.

结果表明:土壤持水特征测定中随着压力的增加,有效收缩距离增大,其变化规律可用对数函数来描述;土壤收缩过程分为超正常段、结构段和伪饱和段三个阶段,适用于用直线模型描述;不同方法测定土壤持水特征时,土壤收缩受水分散失和压力的控制,特别是离心机和压力膜法要充分考虑压力对土壤收缩变化的影响。

Soil shrinkage characteristics is related to change in soil volume with water content in the process of soil drying and wetting.

土壤收缩特征是土壤在干燥、湿润交替变化过程中所表现出的土壤容积随含水量改变的关系。

The review is summarized in some aspects,such as expression methods of soil volume change,characteristic of soil crack,water move mechanics in expansive soil,models of soil shrinkage characteristics curve and related factors affecting soil swelling-shrinkage.

土壤胀缩是土壤在干燥、湿润交替变化过程中所表现出的土壤容积随含水量改变的关系。

Experimental Study on Soil Shrinking and Swelling Characteristics during the Alternative Drying and Wetting Processes;

干湿交替过程中土壤胀缩特征的试验研究

Research on Swelling-shrinkage Law of Expansive Soil and Pile-soil Interaction;

膨胀土胀缩规律及桩—土共同作用研究

The soil expands upon imbibing water.

土壤会由于吸水而膨胀。

Research on Swelling-Shrinking Characteristic and Pile-Soil Interaction of Expansive Soil Foundation;

膨胀土地基胀缩特性及桩—土相互作用研究

The soil contracts upon drying.

土壤会由于变干而紧缩。

Application of Fuzzy Neural Network to Classification about the Grade of Swelling-Shrinkage for Expansive Soils;

模糊神经网络在膨胀土胀缩等级分类中的应用

SOM Neural Network Judgment and Validation on Swelling and Shrinking Grade of Expansive Soil

膨胀土胀缩等级的SOM神经网络评判及验证

FEOZEN-HEAVING OF GROUND-SOURCE HEAT PUMP SYSTEM IN COLD REGION

寒区土壤源热泵埋管冻胀安全性分析

Experimental study of ionic soil stabilizer-improves expansive soil

离子土壤固化剂改性膨胀土的试验研究

Study on Effect of Absorbent on Soil Aggregates and Ratio of Soil Bulks Expanding

保水剂对土壤体积膨胀率及土壤团聚体影响研究

Experimental Research on Stabilized Expansive Soil and Analysis of Swelling-shrinkage Deformation of Foundation;

膨胀土改良的室内试验研究及地基胀缩变形分析

Experimental Study on One-dimensional Compression Creep Characteristics for Unsaturated Remodeling Expansive Soil

非饱和重塑膨胀土一维压缩蠕变特性试验研究

Cause of Hole Shrinkage of Bored-grouting Pile in Expansive Soil and the Prevention Measures

膨胀土地层钻孔灌注桩缩径原因及预防措施

The study of protecting condition influence of mixing inflate concrete contracting rate

养护条件对掺膨胀剂混凝土收缩率影响的研究

Experimental Study on Compression Creep Characteristics for Nanning Unsaturated Expansive Soils

南宁非饱和膨胀土压缩蠕变特性试验研究

gradually reduce and root out the soil on which they rely to breed,

逐步缩小和剔除它们借以滋生的土壤。

Study on Soil Improvement of Expansive Soil Slope with Ecotypic Soil Stabilizer in Ning-Huai Expressway

宁淮高速公路膨胀土边坡生态土壤稳定剂土质改性试验研究

Shrinking change in undisturbed soils during mesuring soil retention characteristics

土壤持水特征测定中的原状土收缩变化研究