Thick loose bed mining rock stratum movement and surface subsidence detection device

Abstract

The invention belongs to the technical field of surface subsidence detection, and specifically relates to a thick loose bed mining rock stratum movement and surface subsidence detection device. The device comprises a subsidence detection unit and a detection observation unit; the subsidence detection unit is arranged according to a coal mine measurement design manual; the bottom end of a tapered pile core penetrates through a sealing lantern ring and is located at the bottom end of a hollow fixed pile, and the top end of the tapered pile core is connected with a rubber buoy; a water guide cavity is formed on the side wall of a sliding cavity, and the water guide cavity is located between the rubber buoy and the sealing lantern ring; and a transparent baffle uniformly divides a glass detection water tank into a plurality of water storage cavities, and the bottom ends of the plurality of water storage cavities respectively communicate with water guide cavities formed on a plurality of hollow fixed piles through a water guide pipe. Through the arrangement of the subsidence detection unit and the detection observation unit, whether a rock layer in a coal mining area collapses or movescan be detected accurately in real time, so that the inspection personnel can carry out safety protection on the rock layer in the coal mine area in a targeted manner.

Description

technical field [0001] The invention belongs to the technical field of surface subsidence detection, in particular to a detection device for rock layer movement and surface subsidence in thick loose layer mining. Background technique [0002] The surface subsidence of goafs in coal mines has seriously damaged the mining environment. The monitoring and control of goaf surface subsidence has become an important measure for environmental governance in mining areas. Real-time monitoring of the law of surface subsidence is an important means of surface subsidence control and environmental assessment in goafs. . [0003] Mine surface subsidence monitoring is an important measure to ensure the safety of ground derricks, winch houses and other buildings, structures and other facilities. However, mine surface subsidence has been in the process of dynamic excavation disturbance for a long time. How to carry out long-term, effective and accurate surface monitoring is the key A difficu...

AI Technical Summary

Problems solved by technology

[0005] In the contact measurement method, regular monitoring of fixed points on the surface is carried out through the buried point, which is a common monitoring method today. The traditional buried method is buried with concrete piles, and this traditional concrete buried detection method is difficult to detect accurately. When the coal mine is being mined, the movement or subsidence of the rock layer area makes it difficult to effectively support the rock layer after mining, which leads to the collapse and subsidence of the surface layer

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