3-D Measurement of Fractures in Rock Using Directional Borehole Radar with Loop Array Antenna

References

1. Balanis, C. A. [2005] Antenna Theory, 3rd ed. Hoboken, NJ, USA: Wiley.
   [Google Scholar]
2. Ebihara, S., Kawai, H., and Wada, K. [2013] Estimating the 3D Position and Inclination of a Planar Interface with a Directional Borehole Radar, Near Surface Geophysics, 11, 185–195.
   [Google Scholar]
3. Ebihara, S., Yamamoto, S., Inada, K., Ishida, K., and Kawasaki, A. [2016] Experiments in skarn with a polarization-sensitive directional borehole radar, Proceeding of the 16th International Conference on Ground Penetrating Radar (GPR), Hong Kong, China, 2016. 1–6.
   [Google Scholar]
4. Ebihara, S. and MatsumotoM. [2022] Loop Array Antenna in a Borehole for Directivity to a Horizontally Polarized Wave.IEEE Transactions on Geoscience and Remote Sensing, 60, 1–10.
   [Google Scholar]
5. Miwa, T., Sato, M. and Niitsuma, H. [1999] Subsurface fracture measurement with polarimetric borehole radar, IEEE Transactions on Geoscience and Remote Sensing, 37, 828–837.
   [Google Scholar]
6. Wada, K., Karasawa, S., Kawata, K., and Ebihara, S. [2015] Fractures and rock properties estimated by 3D directional borehole radar, Proceeding of the 2015 8th International Workshop on Advanced Ground Penetrating Radar (IWAGPR), Florence, Italy, 1–4.
   [Google Scholar]
7. Wang, J., Chen, L., Su, R. and Zhao, X. [2018] The Beishan underground research laboratory for geological disposal of high-level radioactive waste in China: Planning, site selection, site characterization and in situ tests, Journal of Rock Mechanics and Geotechnical Engineering, 10, 411–435.
   [Google Scholar]