Large-inclination-angle coal seam similar simulation experimental device and method

Abstract

The invention discloses a large-inclination-angle coal seam similar simulation experimental device and method. According to the large-inclination-angle coal seam similar simulation experimental device, on the basis of a mining physical similar simulation experimental device in the prior art, a hydraulic hoisting device or a lifting device is eliminated, and a right-triangle-shaped protection plate is additionally arranged; by virtue of different combinations of the right-triangle-shaped protection plate and a horizontal protection plate, the using functions of laying horizontal similar materials and laying large-inclination-angle similar materials can be realized. The invention also discloses the experimental method using the experimental device. The experimental method is easy to operate, labor and material resources are saved, and different inclination angles of coal seam similar materials can be obtained by replacing triangular protection plates with different angles; more importantly, the whole experimental device does not need to be raised or lifted to be inclined in the experimental process, so that the similar materials can be compacted, and the truth and reliability of a simulation experiment result are further improved.

Description

technical field [0001] The invention relates to a similar material simulation experiment device and an experiment method thereof, in particular to a large dip angle coal seam similar simulation experiment device and an experiment method thereof. Background technique [0002] In order to better ensure the safe production of underground mines, maximize the exploitation of mineral resources, protect the mining environment and ground facilities, it is necessary to study the mine pressure and the law of rock formation activity, and develop rock formation support technology and control measures. This is an eternal aspect of mining science. important theme. However, for a mechanical problem with many influencing factors, severe human disturbance, and very complex physical processes, it is difficult for people to clearly understand all the influencing factors of the problem, and it is impossible to accurately obtain the stress tensor and strain tensor describing the rock mass. Ther...

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Problems solved by technology

But at the same time, there are four defects in the following aspects: First, during the experiment, due to the increase in the working space when laying similar materials, the difficulty of laying similar materials increases; second, due to its weight of more than ten tons when fully loaded, its balance and poor stability, especially in the subsequent compaction process of similar materials, there will inevitably be side-to-side swaying or accompanied by a certain degree of up-and-down displacement, which will affect the compaction effect of similar materials, and because the vertical downward pressure is similar to that of inclined coal seams Due to the angle between the materials, there are dead angles in the compaction process, which affects the validity of the experimental results; third, the equipment cost is high, the power consumption is large, and the operation space required is large; the fourth is that there are certain safety hazards

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