Water-preserved coal mining simulation experiment platform with spiral water-bearing stratum simulation system

Abstract

The invention discloses a water-preserved coal mining simulation experiment platform with a spiral water-bearing stratum simulation system, and the experiment platform comprises a simulation frame (1)and a coal seam (2) and a plurality of rock stratums disposed in the simulation frame (1). A water-bearing stratum (3) is disposed above the coal seam (2), and a water-bearing stratum simulation system is disposed in the water-bearing stratum (3). The water-bearing stratum simulation system comprises an outlet pipe (301) and an inlet pipe (302) which are connected at one end and arranged in a spiral manner, wherein the other end of the outlet pipe (301) is connected with a first intelligent pressure control tank (303), and the other end of the inlet pipe (302) is connected with a second intelligent pressure control tank (304). The water-bearing stratum simulation system is entirely elliptical, and the bottoms of the inlet pipe (302) and the outlet pipe are provided with water spray holes(305), and the water spray holes (305) are covered by plastic stickers. The platform is high in experiment stability and reliability, and is simple and scientific in structure.

Description

technical field [0001] The invention relates to the fields of coal mines and education, in particular to a simulation experiment platform for coal mining with a spiral aquifer simulation system. Background technique [0002] Similarity simulation research is an important scientific research method. It is to make a model similar to the prototype in the laboratory according to the similarity principle, observe the mechanical parameters and their distribution laws in the model with the help of test instruments, and use the results of the research on the model to infer The mechanical phenomena that may occur in the prototype and the law of rock mass pressure distribution can solve practical problems in rock mass engineering production. The 3D physical simulation test can solve the problems of model boundary effects, loading and testing, which is more intuitive for the simulation of mining areas with aquifers, because the water has strong fluidity. If the boundary effects are ign...

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Problems solved by technology

The 3D physical simulation test can solve the problems of model boundary effects, loading and testing, which is more intuitive for the simulation of mining areas with aquifers, because the water has strong fluidity. If the boundary effects are ignored, the accuracy of the experimental results will be greatly affected. At the same time, it is necessary to consider the occurrence of aquifers, the geomechanical conditions of mining, and the structural characteristics of coal and rock mass. At present, many scholars and scientific research institutions have carried out research on this, but it is difficult to break through the stability and high-precision characteristics of the aquifer system. At the same time, there is not much research on the relevant methods and structures for the protection and use of the aquifer during the entire experiment

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