Numerical Study of the Effect of Material Modulus upon Cement-Soil Pile Composite Foundation
详细信息
- 责任者：Zhang Weili (Engineering Research Center of Rock-Soil Drilling & Excavation and Protection ; Ministry of Education ; China University of Geosciences ; Wuhan 430074 ; China) ; Guo Jia
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2011
- 卷期：38(2)
- 关键词：深层搅拌桩 ; deep mixing piles ; 复合地基 ; composite foundations ; 地基承载力 ; foundation bearing capacity
- 页码：p.67-72
- 图表：10 illus., 1 table, 11 refs.
- 分类号：1702
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
Numerical simulation model was established with FLAC3D to calculate the stress of pile and soil and the settlement of composite foundation with different modulus of cushion, bearing stratum and pile. The rules of the effect of material modulus upon cement-soil pile composite foundation have been obtained. The results show that the bearing capacity of soil between piles is affected by the material and modulus of cushion, so graded joint sand is appropriate for cushion, and the range of cushion modulus is from 20 MPa to 50 MPa.