Experimental Studies on Unloading Deformation Properties of Soft Clay in Binhai New Area
详细信息
- 责任者：Wei Shaowei (Tianjin University ; Tianjin 300072 ; China) ; Zheng Gang
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2010
- 卷期：37(5)
- 关键词：软土 ; soft clays ; 卸荷 ; unloading ; 三轴试验 ; triaxial tests
- 页码：p.77-82
- 图表：14 illus., 2 tables, 9 refs.
- 分类号：1702
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
With high speed development of the city construction in Tianjin Binhai New Area,a great deal of underground engineering such as deep foundation excavations came forth.This made the research on the properties of soft clay in Binhai New Area become necessary,especially for the unloading properties.Using the improved triaxial equipment,a series of ko consolidation and undrained tests have been carried out to study the unloading deformation properties of the soil in Tianjin Binhai New Area.According to the experimental results,it can be conclude that the unloading deformation properties of the soft clay are relative to the stress path.The stress-strain curves of the soil under lateral or vertical unloading path can be simulated by hyperbola function and the initial tangent modulus is proportional to the confining pressure.
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