Monitoring device for mining ground fissures of shallow coal seam

Abstract

The invention discloses a monitoring device for mining ground fissures of a shallow coal seam, which comprises a placing main frame, a side fissure surface contact detection assembly, a main support column body and a fixing anchor, and is characterized in that a plurality of ground fissure monitoring devices are circumferentially buried in a shallow coal seam monitoring area outside a mining area; each ground fracture monitoring device monitors the ground surface in a monitoring range where the ground fracture monitoring device is located in real time and transmits a data signal to an external monitoring platform, the placing main frame is horizontally supported and fixed on the ground surface of a shallow coal seam, and a main supporting column body is vertically and coaxially installed in the placing main frame; the main supporting column body is arranged in the placing main frame in a relatively sliding and penetrating manner, and one end of the main supporting column body extends into an underground rock-soil layer; a plurality of side crack surface contact detection assemblies are arranged on the main supporting column body and located below the placing main frame in a circumferential array mode, and the side crack surface contact detection assemblies work independently and conduct crack detection and monitoring on the contact rock-soil surfaces within the range radians of the side crack surface contact detection assemblies; and a fixing anchor piece is further installed on the lower end face of the main supporting column body.

Description

technical field [0001] The invention relates to the technical field of ground fissure monitoring equipment, in particular to a monitoring device for mining ground fissures in shallow coal seams. Background technique [0002] Coal mining areas generally have the characteristics of rich resources, shallow burial, and large mining thickness. As the mining cycle gets longer, the coal resources in shallow coal seams are increasingly depleted, and a large number of land subsidence areas will be accompanied by natural disasters such as surface cracks and landslides. As a serious geological disaster, mining ground fissure disasters have caused irreversible damage to the ecological environment; in mining ground fissures, predecessors have accumulated a large amount of data after years of research, but data standardization and normalization are lacking , failed to form a unified system, which seriously hindered the development of digital and intelligent research on ground fissure disa...

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Problems solved by technology

[0002]Coal mining areas generally have the characteristics of rich resources, shallow burial, and large mining thickness. Land subsidence areas will be accompanied by natural disasters such as surface cracking and landslides, especially mining ground fissure disasters, as a serious geological disaster, have caused irreversible damage to the ecological environment; , has accumulated a large amount of data, but the data standardization and normalization are lacking, and a unified system has not been formed, which seriously hinders the development of ground fissure disaster research towards digitalization and intelligence.

Moreover, when monitoring the deformation of ground fissures, there is no unified, standard and standardized monitoring method to follow. In actual monitoring, there are inevitably problems such as relatively random monitoring process, poor monitoring effect, and labor-intensive and time-consuming problems. It is necessary to propose a monitoring device for mining ground fissures in shallow coal seams to solve the above problems

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