A multi-dimensional dynamic and static combined loading rock mechanics experimental device

Abstract

The invention relates to the field of rock mechanics experiments, in particular to a multi-dimensional dynamic and static combined loading rock mechanics experimental device, including a workbench, an adjustment mechanism, a one-dimensional horizontal dynamic and static combined loading mechanism, a lifting mechanism and a two-dimensional dynamic and static combined loading mechanism, and a one-dimensional horizontal dynamic and static combined loading mechanism. The combined dynamic and static loading mechanism includes a dynamic loading component and a static loading component, and the two-dimensional dynamic and static combined loading mechanism includes a moving component, a horizontal loading component and a vertical loading component. The invention can carry out experiments in different dimensions by controlling the combined work of the dynamic load component, the static load component, the horizontal load component and the vertical load component, and adjust the one-dimensional horizontal dynamic and static combination through the adjustment mechanism, the lifting mechanism and the moving component. The location of the loading mechanism and the two-dimensional dynamic and static combined loading mechanism facilitates fixing and experimenting on rocks of different sizes, and further improves the experiment.

Description

technical field [0001] The invention relates to the field of rock mechanics experiments, in particular to a multi-dimensional dynamic and static combined loading rock mechanics experiment device. Background technique [0002] Rock is a common geological material. Rock is not only an important object of mine and rock mining operations, but also widely used in various industries of national economic construction to study the mechanical properties and brittleness of rock under various complex loads. Breaking strength is the main basis for rock engineering design and excavation in mining, water conservancy and hydropower, civil construction, tunnels and underground structures. [0003] Patent 1: Chinese Patent No. CN200510032031.6 discloses a dynamic and static combined loading rock mechanics experiment device, including a fixed frame, the two ends of the test piece in the fixed frame are respectively provided with an incident rod and a transmission rod, and the outer end of the...

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Problems solved by technology

[0005] Both the above-mentioned patent 1 and patent 2 have deficiencies in the use process; first, patent 1 is to improve the principle of the Hopkinson rod, so as to realize the combination of dynamic and static loading of rocks, but this patent can only carry out one-dimensional research, Dynamic and static loads are applied from both sides of the rock. This research method is not perfect, and it is impossible to judge the influence of the rock on its mechanical properties when it is stressed in other dimensions. Second, the second patent is to use the distribution in x, y, z Three hydraulic cylinders in three directions apply force to the rock from three directions, and then conduct multi-dimensional experiments. However, this kind of experiment method can only test the mechanical properties of the rock under static load, and the experimental ability will not be perfect at that time; Third, both patent 1 and patent 2 need to cut the rock into a specified size before performing experiments on the equipment. However, whether the size of the rock will affect its mechanical properties also needs to be experimentally explored, resulting in patents 1 and 2. The second test is incomplete

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