Consolidation Behaviour of Dredged Marine Soils Considering the Incorporation of Granular Drainage Layer

• Main Authors: Siti Farhanah, SM Johan, Chee Ming, Chan
• Format: Article
• Language: English
• Published: IOP Publishing Ltd 2020
• Subjects: T Technology (General); TA Engineering (General). Civil engineering (General); TC Hydraulic engineering. Ocean engineering
• Online Access: http://ir.unimas.my/id/eprint/45553/3/Consolidation.pdf; http://ir.unimas.my/id/eprint/45553/; https://iopscience.iop.org/article/10.1088/1757-899X/713/1/012015
• Institution: Universiti Malaysia Sarawak

The extraction of DMS from seabed along the Malaysian coastal generate millions cubic meters every year. Dredge-transport-dump the DMS at the specified open waters are unfavourable in context of environmental and geotechnical engineering. This paper describes consolidation behaviour of DMS using a modified large- oedometer with a layer of recycled granular materials such as palm oil clinker and recycled pavement materials. DMS were obtained to have high ratio of Wc with 3.27LL and considered as silty clay. A layer of drainage materials accelerates the rate of consolidation and changes in hydraulic conductivity, k of DMS. At the end of consolidation, both RPM and POC layer expediate the water from DMS and it becomes stiffer and structured.