Discussion on Calculation Method of Compression Modulus of CFG Pile Composite Foundation
详细信息
- 责任者：Liu Laixin (Beijing Aidi Geotechnical Investigation and Foundation Engineering Company ; Beijing 100144 ; China)
- 刊名：Exploration Engineering
- 出版年：2012
- 卷期：39(8)
- 关键词：复合地基 ; composite foundations ; 水泥粉煤灰碎石桩 ; cement fly-ash gravel piles
- 页码：p.57-60
- 图表：illus., 6 tables, 8 refs.
- 分类号：1702
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
CFG pile has many successful engineering cases in ground treatment of high buildings. Composite modulus method is recommended by “Technical Code for Ground Treatment of Buildings” JGJ 79-2002 in deformation calculation with stress ratio method formula of composite earth layer compression modulus. In this paper,a modified formula of area ratio method is put forward based on the loading test data of composite foundation. The composite foundation settlement value calculated by this method has a good agreement with the building settlement observation value.