Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5020240 | International Journal of Rock Mechanics and Mining Sciences | 2017 | 8 Pages |
Abstract
Our study also shows that, keeping the borehole spacing and borehole diameter as constant, a through crack can be formed between the adjacent boreholes when the delay time, spacing of PBH and TBH, and transverse wave velocity obey a certain relationship. Keeping the hole spacing between PBH and TBH, borehole diameter and the delay time for PBH and TBH as constant, borehole through cracks between the adjacent boreholes can be formed only when the spacing of TBH equal or below 25 times of borehole diameter.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geotechnical Engineering and Engineering Geology
Authors
Xin Ping Li, Jun Hong Huang, Yi Luo, Ping Ping Chen,