Ground improvement for infrastructure projects in Malaysia

Ground improvement techniques utilising vibro methods, deep soil mixing and grouting technologies are finding increasing application in Malaysia to solve a broad spectrum of geotechnical problems. Recent applications in Malaysia for four separate projects, namely jet grouting to form stable cutter-head interventions for a tunnel project, deep soil mixing to support deep vertical basement excavation with a limestone interface for a commercial complex, vibro concrete columns to found reinforced concrete tanks in a former domestic landfill for a sewage treatment plant, and vibro stone columns to support high reinforced soil walls for a highway, are described herein. The importance of quality control measures are emphasised and available proving methods are also discussed. The case histories presented demonstrate that the techniques can provide effective solutions to challenging engineering problems.