Numerical control air pressure flexible loading experimental device

Abstract

The invention relates to a numerical control air pressure flexible loading experimental device, comprising an air loading and unloading device, a visual man-machine interactive interface and an air pressure numerical control system, wherein, the air pressure loading and unloading device is used in the internal part and external part of an experimental model; the air loading and unloading device is connected with the air pressure numerical control system through a line; and the air pressure numerical control system is connected with the visual man-machine interactive interface through a line. When the invention is used, operators input an air-pressure value or an air pressure variation curve through the visual man-machine interactive interface; and the air pressure numerical control system automatically controls air pressure loading of the internal boundary and external boundary of the experimental model after reading an air pressure instruction, and dynamically monitors, displays and stores the air pressure variation in real time. The air pressure flexible loading device effectively realizes air pressure loading digitization, visualization and automation of the structural model. The invention has the advantages of evenly distributed boundary stress, no environmental pollution, high precision, accurate control, convenience, shortcut, digitization, visualization and automation and wide application range and the like.

Description

technical field [0001] The invention relates to a loading experiment device, in particular to a numerically controlled air pressure flexible loading experiment device. Background technique [0002] With the rapid development of transportation infrastructure and the development of underground resources, underground caverns, as a main type of underground structure, have been widely used in the fields of hydropower, transportation, resources, and energy. At the same time, the construction safety of underground caverns is also affected. more and more attention and attention. With the deepening of underground engineering and the improvement of project scale, the engineering geological conditions and hydrogeological conditions of the rock mass in the proposed underground engineering area are becoming more and more complex. In addition to research and numerical calculation methods, it is necessary to rely more on model experiments to analyze and evaluate the stability of surroundi...

AI Technical Summary

Problems solved by technology

Although its loading is in the form of air pressure, it cannot be loaded by numerical control air pressure

[0007] (4) "Journal of Rock Mechanics and Engineering", No. 21, 2004, introduced a plane strain roadway model loading control system, which uses hydraulic jacks for rigid loading, and cannot perform flexible loading with numerical control air pressure

Its loading adopts rigid loading of hydraulic jack, and cannot carry out flexible loading of numerical control air pressure

[0009] (6) "Journal of Civil Engineering" No. 12 in 2005, and the Chinese patent application number 200510045291.7 introduced a new type of rock and soil geomechanics model experiment system, which uses hydraulic jacks for rigid loading, and cannot perform flexible loading with numerical control air pressure

Its loading adopts rigid loading of hydraulic jack, and cannot carry out flexible loading of numerical control air pressure

Images