A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Laboratory Studies on Property Changes in Surrounding Clays Due to Installation of Deep Mixing Columns
This paper has identified six major factors causing property changes in surrounding soils during and after installation of deep mixing columns: soil thixotropy, soil fracturing, cement penetration and diffusion, cementation, consolidation, and heating. Laboratory tests were performed to investigate the effects of soil thixotropy, soil fracturing, and cementation in a soft marine clay, Ariake clay. Laboratory tests were conducted to evaluate property changes in surrounding clays due to installation of deep mixing columns. Test results showed that an influential zone of property changes existed in surrounding clay ranging from the edge of the columns to the distance of about twice the radius of the columns. Within this influential zone, water content decreased as samples neared the columns, while pH values and electric conductivity increased. Test results also showed that undrained shear strengths of the surrounding clays decreased during mixing but regained after a 7-day curing period and continued increasing during 28 days in this study.
Laboratory Studies on Property Changes in Surrounding Clays Due to Installation of Deep Mixing Columns
This paper has identified six major factors causing property changes in surrounding soils during and after installation of deep mixing columns: soil thixotropy, soil fracturing, cement penetration and diffusion, cementation, consolidation, and heating. Laboratory tests were performed to investigate the effects of soil thixotropy, soil fracturing, and cementation in a soft marine clay, Ariake clay. Laboratory tests were conducted to evaluate property changes in surrounding clays due to installation of deep mixing columns. Test results showed that an influential zone of property changes existed in surrounding clay ranging from the edge of the columns to the distance of about twice the radius of the columns. Within this influential zone, water content decreased as samples neared the columns, while pH values and electric conductivity increased. Test results also showed that undrained shear strengths of the surrounding clays decreased during mixing but regained after a 7-day curing period and continued increasing during 28 days in this study.
Laboratory Studies on Property Changes in Surrounding Clays Due to Installation of Deep Mixing Columns
SHEN, SHUI-LONG (author) / HUANG, XING-CHUN (author) / DU, SHOU-JI (author) / HAN, JIE (author)
Marine Georesources & Geotechnology ; 21 ; 15-35
2003-01-01
21 pages
Article (Journal)
Electronic Resource
Unknown
Evaluation of Property Changes in Surrounding Clays due to Installation of Deep Mixing Columns
| British Library Conference Proceedings | 2003
Deep Mixing Induced Property Changes in Surrounding Sensitive Marine Clays
| British Library Online Contents | 2008
Deep Mixing Induced Property Changes in Surrounding Sensitive Marine Clays
| Online Contents | 2008