TRUE TRIAXIAL MULTI-FIELD MULTI-PHASE COUPLING DYNAMIC TEST SYSTEM AND METHOD

摘要

Disclosed are a true triaxial multi-field multi-phase coupling dynamic test system and method. One end of an incident rod (2) and one end of a transmission rod (4) are fixed to two ends of a triaxial loading device (3) respectively; the triaxial loading device (3) is a hexahedron, comprises three sets of pressure devices which are set opposite to each other in pairs and is capable of separately controlling compression and unloading of all faces of a rock sample and can change the pre-stress loading value of six oil cylinders freely, both the incident rod (2) and the transmission rod (4) are provided with strain gages beneficial for measuring mechanical performance of the rock sample when the rock sample is impacted; and furthermore, a temperature effect test system and a chemical effect test system are additionally added, the temperature field and chemical field where the rock sample is located are changed by adjusting the temperature of the system and injecting different chemical solvents and various gases, meanwhile, in combination with the stress field borne by the rock sample, the mechanical characteristics of the rock sample under the multi-field multi-phase coupling action of the stress field, the temperature field, the chemical field, solid, liquid, gas and the like are obtained, and data and theoretical support are provided for follow-up studies.