1. Blasting for Fracturing and Improving the Permeability of Deep, Soft, Outburst Prone Coal Seams Using Blasthole and Relief Hole Drilled into the Underlying Stratum: Optimal Hole Distance. (22nd July 2022) Authors: Zhang, Jianyu; Zhao, Xingguo; Fu, Shigui; Qiao, Guodong; Zhang, Xin; Yang, Shuai Other Names: Zhang Zetian Academic Editor. Journal: Geofluids Issue: Volume 2022(2022) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗