With the increasing use ofprefabricated vertical drains in the improvement of soft clay there are many types of these drains, both composite (with geotextile wrapping) and monolithic (without geotextile wrapping), available in Malaysia. Some engineers have the impression that all drains perform satisfactorily. However, case studies have shown that there are cases where vertical drains failed to...

Soft clay deposits cause many problems due to low bearing capacity and high deformation. This paper presents the results of laboratory model tests for studying improvement soft clay-bearing using two kinds soil columns, first is slag-cement dust columns second bentonite column. Three from SCC (slag-cement columns) encased by Woven Geotextile are installed beneath a steel plate representing foot...