A two-dimensional similar simulation experiment device for simulating large excavation space

Abstract

The invention discloses a two-dimensional analog simulation experiment device used for simulating big excavation space. The device comprises a supporting system, a lifting system and a self-moving guide track system, wherein a protecting plate is connected with a base through stop levers, front and rear support plates are fixedly connected with the protecting plate through nuts, and resistance strain gages in different directions are attached to the front and rear support plates and connected with wires; one end of each support top rod is connected with one of the front and rear support plates, the other ends of the support top rods are connected with drive gears, two ends of each drive rod are connected with one drive gear and one brake gear respectively, the brake gears are connected with cranking handles, the cranking handles are fixed on external buckles, two ends of the base and slide tracks are connected through clamping port type sliders, two ends of each slide track are connected with the external buckles, and the external buckles are connected with vertical walls of two ends of an experiment table through fastening parts. The controllability, the fineness and the experiment standardability in the experiment process are improved, the experiment time is shortened, the experiment operators are reduced, and the cost is saved.

Description

technical field [0001] The invention relates to the field of coal mining experiment research, in particular to a two-dimensional similar simulation experiment device for simulating a large excavation space. Background technique [0002] As an important laboratory research method, similarity simulation experiment is widely used in mining, geotechnical, geological and other fields. Design various excavation models in the experimental device according to the project, and study the deformation, destruction, collapse and seepage of the surrounding rock of the project by observing and detecting the phenomena that occur in the model during the excavation process, so as to obtain the cause of the problem phenomenon or mechanism. [0003] The similar simulation experimental device is mainly based on the requirements of the experiment, the shape and law of the research object, according to certain principles, the complex geological form in reality is reflected on the model in a certa...

AI Technical Summary

Problems solved by technology

In the similar simulation experiment, due to the limitation of space and the influence of operability, the similar simulation in the laboratory does not pay attention to this part of the influence, and generally does not support it or adopts a simple way to support it. The phenomenon of experimental response cannot be matched with reality, and the pressure and strain in the deformation process cannot be effectively monitored

Moreover, the existing stope support brackets are all manually controlled. During the experiment, at least two people are required to operate and one person to check the records, which affects the progress of the experiment and increases the cost of personnel, and increases the time cost and cost of similar simulation experiments. capital cost

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