True three-dimensional sliding variable dimension loading box device used for geomechanical model test

Abstract

The invention discloses a true three-dimensional sliding variable dimension loading box device used for a geomechanical model test, comprising a true three-dimensional loading box and jacks. The true three-dimensional sliding variable dimension loading box device is characterized in that the true three-dimensional sliding variable dimension loading box is composed of six bearing plates, each bearing plate is provided with an inner surface, an outer surface and four sides, the jack is arranged on the outer surface of each bearing plate, a first side and a second side of each bearing plate are respectively arranged on the inner surfaces of two adjacent bearing plates, and the first side and the second side are adjacent. The true three-dimensional sliding variable dimension loading box device disclosed by the invention can be widely applied to geomechanical model test research in the fields of hydroelectric power, transportation, energy source, resource and national defense and can effectively guide and optimize design and construction of underground engineering; and a three-dimensional geomechanical model test can be effectively guaranteed to be carried out at high quality.

Description

Technical field [0001] The invention relates to a true three-dimensional sliding type variable size loading device used for geomechanical model tests. Background technique [0002] The 21st century is the century of human development and utilization of underground space. With the rapid development of my country's national economy, many underground projects under construction and planning continue to go deep. Whether it is underground tunnels for mining mineral resources, underground tunnels for transportation construction, and underground caverns for hydropower development, they are gradually developing to a depth of several thousand meters. With the increase of buried depth and the increase of engineering scale, deep engineering geology and hydrogeological conditions are becoming more and more complicated. For the complex mechanical deformation characteristics of deep underground engineering rock mass, it is bound to be studied through model tests. To carry out deep geomechanic...

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Problems solved by technology

[0015] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a true three-dimensional sliding type variable-size loading box device for geomechanics model tests, which has a simple structure and is easy to operate. The directional deformation is uniform, and all parts of the model body can be pressurized to the predetermined load value, eliminating the phenomenon of stress concentration, and truly and effectively realizing the three-dimensional loading of the underground engineering model

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