Study of dynamic properties of rocks around an underground opening using seismic inverse techniques

✍ Scribed by Wu, Cliff X. ;Dusseault, Maurice B.

• Book ID: 104408876
• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 426 KB
• Volume: 34
• Category: Article
• ISSN: 0148-9062
• DOI: 10.1016/s1365-1609(97)00162-7

✦ Synopsis

A reverse vertical seismic profiling/crosswell seismology (RVSP/CSW) inverse technique which is based on an elastic model has been developed to quantify the dynamic mechanical parameters and map the structural anomalies in a solid rock medium around an underground opening, and these dynamic mechanical parameters and structural images are used to address the dynamic properties of the rock., for example, stability analysis of a critical region of a tunnel. Higher quality and higher resolution seismic data are required in the inverse technique to allow very small scale (less than 25cm) geo-engineering targets to be suitably investigated and get the inverse algorithm convergent at a reasonable response time. The corresponding data acquisition requirements and physical environmental conditions are carefully considered and designed.

The results show that the proposed inverse technique has the potential to be used as a field monitoring tool.