Device for simulating subsidence deformation of collapsible loess surface during mining of coal seams with different dip angles
The utility model discloses a device for simulating collapsible loess surface subsidence deformation of coal seams with different dip angles, the device comprises an adjustable inclination test device and a surface deformation measuring device, the adjustable inclination test device is composed of a...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a device for simulating collapsible loess surface subsidence deformation of coal seams with different dip angles, the device comprises an adjustable inclination test device and a surface deformation measuring device, the adjustable inclination test device is composed of a test base, an upper rack and an adjustable inclination device; the upper rack is composed of a bottom plate and adjustable inclination test racks arranged at the two ends of the bottom plate. The adjustable inclination device consists of a jack, a top cover, a roller bracket and a roller; the earth surface deformation measuring device is composed of a horizontal bearing measuring steel plate, a telescopic vertical measuring ruler and a sliding block. The angle of the model is convenient to adjust, and the mining conditions of coal seams with different dip angles are simulated; during simulation, movement deformation of the earth surface and overlying strata is observed, the position of a cross curve measuring poin |
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