Casing for I-Shaped Cast-in-Place Pile and Its Deformation Control Countermeasures
详细信息
- 责任者：Zou Zhengsheng (College of Civil Engineering ; Henan Polytechnic University ; Jiaozuo 454003 ; China) ; Mo Yunbo
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2013
- 卷期：40(4)
- 关键词：灌注桩 ; cast-in-place piles
- 页码：p.83-87
- 图表：illus., 16 refs.
- 分类号：1702
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
Advantage of I-shaped supporting pile is shown with an example.Tube-sinking test of hollow I-shaped casing and pile-formed technology for I-shaped case-in-place pile are also introduced.Aiming at the disadvantages of its smaller stiffness and weak resistance to deformation during tube-sinking,the deformation control countermeasures for I-shaped casing is illustrated in the paper.The test shows that the full-length hollow casing with I-shaped section is not suitable for construction of long tube-sinking cast-in-place piles due to its small stiffness and large deformation induced by soil-squeezing effect,while the rectangular casing with wings in bottom can make I-shaped pile into reality due to its skillful structure,stronger stiffness,strong anti-deformation ability,lower induced excess pore pressure and easy to dissipate.
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