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Application Example / Civil
Application Example
Tunnel, Underground-cavern, Dam, Bridge, Elevated-railway, Slope, Port, Airport
– Acoustic Emission for micro crack
– Tomography for damaged area
– Vibration monitor by accelerometer and seismometer
– Stress measurement (over-coring)
– Micro-wave Displacement measurement
Case 1
AE Monitoring of rock structure during excavation at Underground LPG Storage
With embedded AE sensors (FOD and PZT) near underground cavern, EDZ (Excavated Damaged Zone) was evaluated after excavation work by dynamite.
Case 2
Measurement of rock stress of an underground cavern
With over-coring method which utilizes a molded strain gauge, stress analysis was made for underground rock.
Case 3
AE measurement of rock destruction test
Obtain rock strength data, from sample core extracted at site.
