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本文介绍一种室内水压致裂法.使用的是具有孔隙压、围压和轴向压力三种各自独立的加荷系统联合作用的压力容器,其特点是可以调整不同的载荷条件和应力途径,对各类岩石和混凝土材料进行大批量试验.通过电阻应变仪、声发射、声脉冲速度等手段观测试件的变形和破裂过程,获得精度较高的定量指标,作现场试验的辅助与对比,并为科研和工程设计提供预期依据.
This article describes an indoor hydraulic fracturing method. Pressure vessels are used that have a combination of three independent loading systems: pore pressure, confining pressure, and axial pressure. Their characteristics are the ability to adjust different loading conditions and stress paths. , Performing large-scale tests on various types of rock and concrete materials. Viewing the deformation and rupture process of the test pieces through resistance strain gauges, acoustic emission, and acoustic pulse velocity, and obtaining high-precision quantitative indicators for the aid and comparison of field tests. , and provide the expected basis for scientific research and engineering design.