Mine shaft deformation simulation experiment device

Abstract

The invention discloses a mine shaft deformation simulation experiment device. The device comprises a water storage barrel (1) which is connected with a high-pressure water pump (4) through a water pump water inlet pipe (3), and the high-pressure water pump (4) is connected with a pressurizing pipe water inlet (6) through a water pump water outlet pipe (5); a pressurizing pipe (15) and a pressurerelief pipe (16) are mounted on the base (14), and electromagnetic valve water valves (17) are mounted on the pressurizing pipe (15) and the pressure relief pipe (16) respectively; a shaft (7) is detachably and fixedly connected with the base (14), a telescopic high-pressure water hose (10) is installed on the shaft (7) and connected with the pressurizing pipe (15) and the pressure relief pipe (16), an operating table (2) controls opening and closing of the electromagnetic valve (17) and starting and stopping of the high-pressure water pump (4), and pressure adjustment in the telescopic high-pressure water hose (10) is achieved. According to the invention, shaft stresses of different stratum division layers and different geological conditions can be simulated, arbitrary adjustment of the pressure in the telescopic high-pressure water hose is realized, and the simulation effect is more accurate.

Description

technical field [0001] The invention relates to a mine shaft deformation simulation experiment device, which belongs to the technical field of mine shaft deformation. Background technique [0002] With the continuous development and exhaustion of shallow mineral resources, the exploration and exploitation of deep mineral resources has become the strategic direction of my country's mining industry development. With the rapid increase of mining depth and lifting load, the geological conditions become more complex, and the mine pressure continues to increase, which makes the wellbore bear increasingly high pressure and aggravates the risk of wellbore deformation. According to incomplete statistics, since the 1980s, more than 100 shafts have been damaged to varying degrees in Huainan, Huaibei, Datun, Xuzhou, Yanzhou, Jining and other mining areas in China. A common feature of these deformed shafts is that the shaft depth is relatively large, and the topsoil layer is hundreds of...

AI Technical Summary

Problems solved by technology

Monitoring the deformation of the wellbore through the state of the tank should grasp the form and mechanism of the change of the state of the tank caused by the deformation of the wellbore. Due to the limitations of the safety and production conditions of the coal mine site, the field experiment cannot be implemented, so the experimental device should be used to study the state of the tank caused by the deformation of the wellbore Mechanism of change

However, the existing experimental devices only study the deformation of the wellbore caused by geological conditions, and have not considered the state change of the tank caused by the deformation of the wellbore. Difficult, there is a certain error with the force of the wellbore in the actual situation, and it cannot accurately reflect the mechanism and state of the deformation of the wellbore and the deformation of the tank

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