A solid-liquid coupling similar simulation test device suitable for water-retaining coal mining in short-distance coal seams
A technology of water-retention coal mining and similar simulation, which is applied in soil material testing, material inspection products, etc., can solve the problem of inability to provide more accurate information for water-retention coal mining in short-distance coal seams, and achieve the effect of reducing costs.
Active Publication Date: 2017-11-28
HUNAN UNIV OF SCI & TECH
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[0005] The purpose of the present invention is to provide a solid-liquid coupling similar simulation test device suitable for water-retaining coal mining in short-distance coal seams, aiming at solving the problem that the prior art cannot provide more accurate information for water-retaining coal mining in short-distance coal seams
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[0054] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0055] Attached below Figures 1 to 4 and specific embodiments to further describe the application principle of the present invention.
[0056] The solid-liquid coupling similar simulation test device suitable for water-retaining coal mining in short-distance coal seams includes a casing 1, a water-repellent layer 13 is laid on the bottom of the casing 1, and a humidity sensor 4 is installed in the water-resistant layer 13; Aquifer 12, the upper end of the aquifer 12 is equipped with a dividing plate 11, the upper end of the dividing plate 11 is laid with a lower coal seam 10, the upper end of the lower coal seam 10 is equ...
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Abstract
The invention discloses a water-preserved mining solid-liquid coupling similarity simulation test apparatus suitable for near coal seams. The bottom of a shell is provided with a water separation layer, and a humidity sensor is arranged in the water separation layer; the upper end of the water separation layer is provided with a water-bearing layer, the upper end of the waterproof layer is provided with a separator plate, the upper end of the separator plate is provided with a lower coal seam, the upper end of the lower coal layer is provided with a pressurizing device, and the pressurizing device is provided with a pressure sensor; the upper end of the pressurizing device is provided with a working surface wind duct, the upper end of the working surface wind duct is provided with a horizontal well, the upper end of the horizontal well is provided with an upper coal seam, a displacement sensor is arranged in the upper coal seam, and the upper end of the upper coal seam is provided with a rock layer; and the external of the shell is provided with a controller, the controller is provided with a display device, and the signal output ends of the displacement sensor, the pressure sensor and the humidity sensor are respectively connected with the controller. The apparatus can effectively simulate the water and rock stratum coexistence state in the water-bearing layer before mining of the near coal seams, and provides accurate data for water-preserved mining.
Description
technical field [0001] The invention belongs to the technical field of test devices, and in particular relates to a solid-liquid coupling similarity simulation test device suitable for coal seam water retention mining in short-distance coal seams. Background technique [0002] Large-scale mining of coal will cause damage to aquifers, a great waste of surface water and groundwater resources, and water damage will cause serious economic losses and casualties to the development and utilization of coal resources. Due to the complexity and unpredictability of rock strata changes in the actual underground stope, it is an effective way to study the law of overburden failure and movement in coal seam water conservation mining by using a simulation test bench for simulation experiments. [0003] The use of simulation test devices for complex coal seam mining research has long been associated with devices, especially in the study of physical similarity simulation tests for water-retai...
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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 谢东海
Owner HUNAN UNIV OF SCI & TECH