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根据对防护工程、爆破工程、地震工程和其它高压、高速工作的研究需要,研制了一台岩石高压动力三轴仪。它可研究岩石或其它材料在三轴动、静力条件下的应力-应变关系。该三轴试验仪的特点是高压、高速,能使岩石试件在围压为0—1000MPa,轴压达0—4000MPa的条件下进行试验,快速加载只需4—9ms就可使荷载由零上升至峰值,应变速率达10~0s~(-1)。本文介绍了三轴仪的主要结构,动加载原理,密封,高油压下的测量手段等,还介绍了用这台设备对各种岩石在各种应力条件下所进行的应力-应变关系、强度、变形、破坏、应变速率效应等试验的情况和所获得的试验数据。这台设备填补了我国空白。
According to the research needs of protective engineering, blasting engineering, seismic engineering and other high-pressure and high-speed work, a high-pressure rock triaxial apparatus was developed. It can study the stress-strain relationship of rocks or other materials under triaxial and static conditions. The triaxial tester is characterized by high pressure and high speed, which can make rock specimens under confining pressure 0-1000 MPa and axial pressure reach 0-4000 MPa. The rapid loading only takes 4-9ms to make the load from zero. Rise to the peak, strain rate of 10 ~ 0s ~ (-1). This paper introduces the main structure of the triaxial apparatus, dynamic loading principle, sealing, and measurement methods under high oil pressure. It also introduces the stress-strain relationship of various rocks under various stress conditions using this equipment. Test conditions such as strength, deformation, failure, strain rate effects, and test data obtained. This device fills the gap in our country.