A method for simulating goaf mining and a device for realizing the method

Abstract

The invention discloses a method for simulating the exploitation of a worked-out section, and solves the problems that an iron box-pull-out method and a paraffin-resistor burn melt method are difficult to realize and the experiment effect is poor in the prior art. The method comprises the following steps: (1) arranging a plurality of rubber pipes and laying the rubber pipes according to the size of a to-be-simulated worked-out section; (2) fully filling each rubber pipe with flowing filling substances, knotting two end parts of each rubber pipe, and winding the knotted positions by utilizing steel wires; (3) laying a rock layer on the laid rubber pipes which are fully filled with the flowing filling substances, and exposing the end part of one section of each rubber pipe out of the upper rock layer; (4) cutting off the end part of one end, exposed out of the upper rock layer, of each rubber pipe; (5) inserting a hollow pipeline into each rubber pipe from the cut-off end part of the rubber pipe, so that the flowing filling substances in the rubber pipes can flow out from the hollow pipeline; and (6) repeating the step (5), so that the exploitation of the worked-out section can be simulated. The method is convenient and simple to realize, and good in experiment effect and is suitable for being popularized and applied in a large range.

Description

Technical field [0001] The invention relates to a simulated mining experiment of a goaf, in particular to a method for simulating the mining of a goaf and a device for realizing the method. Background technique [0002] The mined-out area is a “cavity” created by man-made excavation or natural geological movement under the surface. The existence of the mined-out area makes the safe production of the mine face great safety problems, and personnel and mechanical equipment may fall into the goaf. hurt. When building on the goaf, sometimes it is difficult to ensure the safety of the ground building only by using various ground protection measures. Therefore, the mining method of the simulated goaf is particularly important. In the prior art, in the physical simulation experiment of the mined-out area, there are mainly two methods for simulating the excavation of the mined-out area. One is the iron box-pull-out method. The disadvantage of this method is that the pressure of the overb...

AI Technical Summary

Problems solved by technology

In the prior art, in the physical simulation experiment of the goaf, there are mainly two methods for simulating the excavation of the gob, one is the iron box-pull method, and the disadvantage of this method is: due to the pressure of the overlying strata, the The iron box is often difficult to pull out, and the experimental results are not good; the other is the paraffin-resistance burning method. The disadvantage of this method is that it takes a long time to burn and melt, which not only affects the ecological environment; moreover, it cannot get good experimental results. Effect

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