Surrounding rock blasting damage crack range prediction method, storage medium and equipment

• Main Authors: LIANG CHAO, CHEN JIAJUN, PENG BO, HAN YONGGANG, ZHANG ZHANJUN, SHEN ZHIJUN, CHEN YUE, CHEN WENYIN, WEI LIANG, LE HONGLEI, ZHAO LIANHENG, ZHANG HONGBIN, LIU WENSHENG, SUN JINGMAO, LI LIANG
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS; PHYSICS

The invention discloses a surrounding rock blasting damage fracture range prediction method. The method comprises the steps of obtaining working condition parameters, constructing a surrounding rock blasting damage fracture range prediction model to obtain a surrounding rock failure partition fracture range relational expression, and obtaining a surrounding rock blasting damage fracture range based on the working condition parameters and the surrounding rock failure partition fracture range relational expression. According to the method, principal stress, initial crustal stress, initial damage, blast hole cavity expansion, rock mass plastic damage and shear expansion characteristics in the surrounding rock are comprehensively considered, and the influence mechanism of the initial crustal stress and the middle principal stress on the surrounding rock blasting damage crack range can be revealed; while the efficiency of blasting the surrounding rock is improved, the actual crack range of the deep tunnel drilling