Experimental testing method for rock engineering disturbance dynamics behaviors in deep in-situ coupling environment

• Main Authors: XIAO KUN, WANG MENGNI, ZHANG ZETIAN, SUN JUNLONG, YANG ZEQIAN, LYU YOU, ZHANG RU, YAN ZHIWEI, LOU CHENDI, REN LI, XIE JING, ZHANG ZHILONG, YIN RONGJIE, ZHANG ANLIN
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides a rock engineering disturbance dynamics behavior experimental test method under a deep in-situ coupling environment, and relates to the field of deep rock mechanics tests. Comprising the following steps: determining initial in-situ coupling environment parameters before surrounding rock excavation at a research depth; obtaining a deep cylindrical rock sample, and placing the deep cylindrical rock sample in a rock mechanics experiment system; loading the boundary conditions of the sample to a corresponding initial in-situ coupling environment; calculating the stress state of each point from the first stress disturbance point to the fourth stress disturbance point in the excavation disturbance process; calculating a pore water pressure value after excavation; the ratio relation between the loading and unloading rates of the confining pressure and the axial pressure is determined; determining the unloading rate of the pore water pressure; disturbance pretreatment is carried out before the