ABSTRACT:
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.
This paper will describe recent applications in Malaysia for four separate projects – Jet Grouting to form stable
cutter-head interventions for a tunnel project; Deep Soil Mixing to support deep vertical basement excavation with
limestone interface for a commercial complex; Vibro Concrete Columns to found reinforced concrete tanks in
former domestic landfill for a sewage treatment plant; Vibro Stone Columns to support high reinforced soil walls
for a highway project. The importance of quality control measures are emphasized and available proving methods
are also discussed. The case histories presented demonstrate that the techniques can provide effective solutions
to challenging engineering problems.
1 Introduction
Malaysia has seen extensive growth for the past one decade with many infrastructure projects in the construction
industry. Current technology affords many ground improvement techniques to suit a variety of soil conditions,
structure types and performance criteria. These ground improvement techniques can offer alternative foundation
systems to the conventional pile foundation systems. For more details on various available ground improvement
techniques, the reader is referred to “Ground Improvement 2nd Edition” book edited by Moseley & Kirsch (2004).
This paper illustrates four recent case histories in Malaysia, where innovative ground improvement techniques
were employed to suit varying needs of application type and performance criteria. The chosen techniques varied
from Jet Grouting, Deep Soil Mixing, and Vibro Concrete Columns to Vibro Stone Columns as shown in the
Figure 1.
The construction methodology and quality control procedures during execution of works were in accordance with
relevant Code of Practices (e.g. BS EN 12716:2001, BS EN 14679:2005, BS EN 14731:2005, etc.). These
techniques offered reasonably environmental friendly solutions, especially in urban areas.

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