Dynamic monitoring device of roadway-beside filling body and tunnel roof of gob-side entry and operating method thereof

Abstract

The invention discloses a dynamic monitoring device of the roadway-beside filling body and the tunnel roof of a gob-side entry and an operating method thereof, belonging to the technical field of coal mine roadway monitoring. The monitoring device comprises a cross section monitoring point, a communication substation and a communication master station, wherein, the cross section monitoring point is connected with the communication substation; the communication substation is connected with the communication master station through an underground optical cable; the cross section monitoring point comprises a sinking amount monitoring point, a side-to-side displacement monitoring point, a filling body vertical stress monitoring point and a filling body horizontal stress monitoring point; the sinking amount monitoring point and the side-to-side displacement monitoring point are respectively provided with a KBU101-200 monitor; the KBU101-200 monitors are respectively arranged on a roadway vertical supporting pipe and a horizontal moving pipe; the filling body vertical stress monitoring point and the filling body horizontal stress monitoring point are respectively provided with a pressure sensor; and the pressure sensor is arranged in the roadway-beside filling body. The operating method comprises the following steps: the monitoring signal on each cross section monitoring point is transmitted to a KJF70 communication substation through a 485 bus, and the communication substation surveys each monitoring point at regular time under the control of the communication master station, and stores and analyzes the monitoring data at real time.

Description

technical field [0001] The invention relates to a dynamic monitoring device and a working method for a filling body and a roadway roof beside a gob-side roadway retaining roadway, and belongs to the technical field of coal mine roadway monitoring. Background technique [0002] Gob-side retaining is a form of coal-pillar-free roadway protection, among which non-coal-pillar roadway protection is a major reform of coal mining technology, and gob-side retaining roadway technology is the main aspect of the technical reform of mining roadway support. It is beneficial to the rational development of coal resources, improves the recovery rate of coal resources, reduces the amount of roadway excavation, fundamentally improves the tense situation of mine excavation replacement, improves the maintenance of roadways, and improves the efficiency of mine mining. It has been widely valued. In terms of environmental protection of coal mining, people try to realize green mining of coal mines ...

AI Technical Summary

Problems solved by technology

There is no mature technical solution for the monitoring and control effect evaluation of surrounding rock movement in gob-side entry retaining roadways in coal mines

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