PPT Slide

History of Cavity and Tunnel Detection and

Emergence of Geophysical Technology

Tunnel Detection Problems/Programs

1960's

Tunnels in Viet Nam

Cavities in Karst Regions

1970's

Cavities in Karst Regions

DOT/FHWA Cavity Detection Program

COE/WES Cavity Detection Program

Korean Intrusion Tunnels Discovered

• DARPA Tunnel Detection Program

file:tunnel13

• DARPA Rapid Excavation Program

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