Demonstration Mobile Seismic Unit for Detecting Subterranean Passageways
Abstract
A mobile seismic unit for detecting shallow subterranean passageways was designed and constructed. The unit was successfully field tested and/or demonstrated at six known tunnel sites (tunnel diameters ranged from 0.6 4.0 m; tunnel depths ranged from 0.3 1.5 m). The locations of the six tunnels were determined with an average accuracy of 0.5 m; on average, one false positive was identified on each of the six test site data sets. The mobile unit consists of an ATV, a 24-channel seismograph, an acoustic weight drop source, a 17 m-long land streamer, a camera, a GPS system, a survey wheel and a laptop computer. The demonstration unit can be operated by non-technical personnel and is capable of acquiring ~0.5 km of field data per day. The data can be interpreted in the field by non-technical personnel using fully-automated built-in interpretational software.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2009
- Accession Number
- ADA548143
Entities
People
- A. Nasseri-moghaddam
- Colin Stagner
- Evginey Torgashov
- Neil Anderson
- Niaklas Putman
- Oleg Kovin
- Peng Xie
- Preetam Modur
- Steve Grant