Principal Investigator

Dr. Hwa Kian Chai
University of Malaya (UM), Malaysia

ASEAN Co-Investigator


Japanese Co-Investigator

Assoc. Prof. Dr. Tomoki SHIOTANI
Kyoto University

Awarded year



Collaborative Research Program with Industry (CRI)


Geological and Geo-Resource Engineering


This proposed research is venturing into the emerging and potentially transformative research idea of establishing an AE-based warning system for soil slope failure to mitigate its disastrous consequences on the lives and social-economy. The research aims at catalyzing rapid and innovative advances in the monitoring technology for soil slopes in Malaysia, of which the promising fundamental outcome could help ignite future research work of similar kind among the stakeholders within the country. In the case for soil slopes, apart from understanding the release of wave energy associated with complicated mechanism of soil fracture, the main challenges for effective implementation of AE technique lie in aspects related to instrumentation (sensor choice, location etc.), signal processing (attenuation, frequency response, filtering process etc.) and data interpretation (considerations for intrinsic properties, slope gradient, water runoff etc.). Fundamental laboratory investigation utilising soil box samples and scaled-down slopes were undertaken to clarify the unique features of AE propagating in soil with different compositions of clay and sand as well as moisture content.

Project at glance