Method for determining principal stress direction of coal face

• Main Authors: TANG KUN, ZHOU XIYONG, YANG XIUGUO, ZOU CHAOYANG, DING CHUANHONG, WANG XIUFENG, SHI KUANGMIN, WENG MINGYUE, WU JIANHU
• Format: Patent
• Language: Chinese; English
• Published: 20.08.2024
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The invention discloses a method for determining the main stress direction of a coal face. The method comprises the following steps: drilling two drill holes in a specific position; wherein the specific positions ensure that the two drill holes are located in the waist line position of the roadway a...