Dynamic Method for Calculating the Compressive Modulus of Vibro-Replacement Stone Column
详细信息
- 责任者：Shi Shaomin (College of Construction Engineering ; Jilin University ; Changchun 130026 ; China)
- 刊名：Journal of Jilin University
- 出版年：2011
- 卷期：41(1)
- 关键词：复合地基 ; composite foundations ; 桩基检测 ; pile foundation detection
- 页码：p.172-176
- 图表：4 illus., 3 tables, 10 refs.
- 分类号：1702
- issnNo：ISSN1671-5888
- isbnNo：CN22-1343/P
摘要
Vibro-replacement stone column is uncemented structure. The deformation formed by the vertical load on the vibro-replacement stone column composite ground is more than that on rigid piles composite foundation. The relationship between a vibrator power performance indicators and stone column body strength is established for the study of the stone column composite ground settlement. In the light of compressive modulus concept, combined with vibrating stone column technology, established the relationship of stone column compressive modulus with vibrating force, density column long, density current and vibration time-which is called dynamic method. The compressive modulus from a dynamic method was used in settlement calculation and compared with that settlement using the modulus from load test. The deviation of the settlement with both methods from that based on actual observation projected value is less than 10%.