Rigid-flexible composite rock fracture evolution monitoring device and monitoring method

The invention discloses a rigid-flexible composite rock fracture evolution monitoring device and monitoring method. The generation and expansion process of a gap in composite rock under a three-shaftstress state is dynamically monitored in real time by the device, wear layer characteristic of a gap in a contact surface of different rocks is particularly monitored, and the rigid-flexible compositerock fracture evolution rule is summarized; and meanwhile, the stress distribution and the dependent variable of the rigid-flexible composite rock is researched during the fracture evolution process,a relation among the stress distribution, the dependent variable and a gap development rule of different rocks is analyzed in a coupling way, and the rigid-flexible composite rock fracture formationmechanism is further described. 本发明公开了一种刚-软复合岩层断裂演化监测装置及监测方法，装置通过实时动态监测三轴应力状态下复合岩层中裂隙的萌生、扩展过程，尤其监测不同岩性岩层接触面处裂隙的穿层特征，总结刚-软复合岩层断裂演化规律，同时研究断裂演化过程中刚-软复合岩层应力分布及应变量，并耦合分析不同岩性岩层应力分布、应变量与其裂隙发育规律的关系，进而阐明刚-软复合岩层断裂形成机理。