Model tests on consolidation behavior of soft clay ground improved by plastic board drain

被引：0
作者：
You, SK [1 ]
Oda, K [1 ]
Matsui, T [1 ]
机构：
[1] Osaka Univ, Osaka, Japan
来源：
PROCEEDINGS OF THE ELEVENTH (2001) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL II | 2001年
关键词：
plastic board drain; consolidation behavior; model test; stress level; ground improvement;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Recently, the plastic board drain method has widely been used in Japan for accelerating the consolidation of soft clay ground. The accurate prediction of consolidation behavior of the ground improved by plastic board drains, however, is very difficult because the consolidation characteristics of the improved ground have not sufficiently been elucidated. The shape of drains is one of the most important factor which affect the consolidation characteristics of the improved ground. In this paper, a series of model consolidation tests of soft clay ground improved by plastic board drain was carried out, in order to investigate the effect of both plastic board width and stress level on consolidation characteristics of the improved ground. As the results, behaviors of both settlement and excess pore pressure dissipation were elucidated. Also, the non-uniform distribution of water content in the model ground is obtained. It was concluded that the consolidation time became shorter in cases of wider plastic boards. Finally, through the comparison between experimental consolidation behaviors and Barron's theoretical ones, the validity of this experimental study was estimated.
引用
收藏
页码：687 / 693
页数：7
相关论文
共 5 条
[1]  
BARRON RA, 1948, T AM SOC CIV ENG, V113, P718
[2]  
CRAIG RF, 1997, E FN SPON, P275
[3]  
HANSBO S, 1981, 10TH P INT C SOIL ME, V3, P677
[4]  
MATSUI T, 1996, P ISOPE 96, V4, P582
[5]   THE PERMEABILITY OF NATURAL SOFT CLAYS .2. PERMEABILITY CHARACTERISTICS [J].
TAVENAS, F ;
JEAN, P ;
LEBLOND, P ;
LEROUEIL, S .
CANADIAN GEOTECHNICAL JOURNAL, 1983, 20 (04) :645-660
1