1. Study on Vibro-Replacement Stone Pile Test for Soft Soil Foundation
- Author
-
Jing Meng, Lei Fei Deng, Yan Qiang Cui, Tie Liang Li, Gan Zhang, and Qiang Zhang
- Subjects
Engineering ,business.industry ,Foundation (engineering) ,Feeding mode ,Geotechnical engineering ,General Medicine ,Standard penetration test ,Structural engineering ,Reinforcement ,Pile ,business - Abstract
This paper studies the applicability of vibro-replacement stone pile in combination of a port project in Dalian as well as heavy dynamic sounding and standard penetration test, studies the reinforcement effect of pile distance and feeding type on vibro-replacement stone and analyzes reinforcement effects of the side pile and the earth among piles. The results show: smaller pile distance will bring better pile compactness; for the vibro-replacement stone pile constructed in soft earth with undrained strength less than 20kPa with the conventional method, it is not easy to form compact pile; the reinforcement effect works only within 0.6m on the top; vibro-replacement stone pile with bottom feeding mode can form compact piles, but the pile has the interlayer which is not compact enough partially; the strength of the earth among piles fails to improve obviously before and after the stone pile is formed.
- Published
- 2014