Strength of soft clay reinforced with 13mm diameter of single crushed coconut shell column

• Main Author: Nurrul Nisya, Anuar
• Format: Undergraduates Project Papers
• Language: English
• Published: 2018
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://umpir.ump.edu.my/id/eprint/27639/1/Strength%20of%20soft%20clay%20reinforced%20with%2013mm%20diameter%20of%20single%20crushed%20coconut%20shell.pdf; http://umpir.ump.edu.my/id/eprint/27639/; https://efind.ump.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=90940

Stone column could be used as a ground improvement technique where a portion of soft soil is replaced with granular material such as stone or sand. The benefit of using stone columns in low strength soil has been proved as an efficient method to improve bearing capacity and reduce settlement of soft soils. This study was aimed to investigate the improvement in shear strength of soft clay by reinforce the 13mm crushed coconut shell column. This research was done by determine the effect of area replacement ratio and height penetration ratio of a single coconut shell column on shear strength characteristics. Unconfined Compression Triaxial Test (UCT) was conducted for 12 batch kaolin samples including control sample in order to determine the shear strength. The research variable are diameter and height of crushed coconut shell column which under a concept of critical length of column. The increment of shear strength by embedded with crushed coconut shell column are 17.28%, 20.50% and 18.25% with 6.76% area replacement ratio at column penetration ratio of 0.60, 0.80 and 1.0 respectively. From the result obtained, the relationship of the increment of shear strength with the various column penetration show different pattern