Prototype experimental study of expansive force of pile embedded in expansive soil

被引：0

作者：

Wu, Zhi-Wei ^{[1
,2
]}

Song, Han-Zhou ^{[2
]}

Wang, Hong-Yu ^{[1
]}

Liu, Chang-Ji ^{[1
]}

Jiang, Yong ^{[1
]}

机构：

[1] Northeast Electric Power Design Institute, Changchun 130033, China

[2] College of Earth Science and Engineering, Hohai University, Nanjing 210098, China

来源：

Yantu Lixue/Rock and Soil Mechanics | 2012年 / 33卷 / SUPPL. 2期

关键词：

Soil mechanics - Soil moisture;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The working pattern of single pile embedded in expansive soil will be influenced by the soil's water content directly. In order to study how the soil influencing pile when it is soaking with water, the prototype test of expansive force of bored pile is carried out. The test result shows that the vertical displacement of soil increases slowly and to be stable finally. Influenced by soil water content and compactness, the vertical displacement of shallow area is always greater than that in depth. During the soil expansive process, the uplift force of pile top increases rapidly and then increases slowly; and at last to be stable. According to mechanical analysis of pile and test results, the expansive force is a comprehensive representation parameter of expansive shear force, pile weight and pile-soil interface friction. For more safety, pile length should be long enough to make sure the anchoring force of pile is larger than ultimate expansive force.

引用

页码：173 / 177