Simulation experiment device and collaborative monitoring method for mining overburden movement affecting mine pressure

Abstract

The invention discloses a mining overlying strata movement influence mine pressure simulation experiment device and a cooperated monitoring method, and belongs to the field of mining engineering. The method comprises stope overlying strata movement monitoring, stope overlying strata stress transmission monitoring and stope mine pressure display monitoring; the stope overlying strata movement monitoring comprises key layer primary breaking movement monitoring and key layer period breaking movement monitoring; the stope overlying strata stress transmission monitoring is the stress transmission monitoring on each key layer bottom interface of the overlying strata; the stope mine pressure display monitoring comprises support frame work resistance monitoring and support frame compression quantity monitoring. All detections are collected by the same dynamic collecting card and the same host computer. The device has the advantages that the structure is simple; the use is convenient; the detection effect is good; the influence of the stope mine pressure rule the abnormal phenomena, the period fracture movement of the overlying strata multi-key layers and high-layer position key layers on the work face mine pressure can be studied.

Description

technical field [0001] The invention relates to an underground mining experiment device and a monitoring method, in particular to a simulation experiment device and a collaborative monitoring method for the influence of mining overlying rock movement on mine pressure, and belongs to the field of mining engineering. Background technique [0002] The stope rock pressure mainly depends on the nature and movement of the overlying rock in the stope. The study of the internal relationship between the general law and abnormal phenomena of the stope rock pressure is inseparable from the study of the overlying rock movement in the stope and the mechanism of its influence on the stope. To this end, the methods of theoretical analysis, field measurement and simulation experiments are used for research. [0003] In the research on the structure and movement of the overlying rock in the stope, the masonry beam theory and the key layer theory controlled by the corresponding rock strata ar...

AI Technical Summary

Problems solved by technology

At present, there are several problems in the simulation experiment research of stope rock pressure: for multiple quantitative observation indicators such as stope rock pressure and overlying rock movement, only one or several objects or indicators are often observed; some indicators The observation is only through static observation at a specific moment, and the influence of the overlying rock movement in the stope on the mine pressure in the stope is a dynamic process that manifests through time; observations such as infrared energy observation, microseismic technology, acoustic emission technology, and dynamic photographic displacement measurement technology Although the method can achieve dynamic observation of the overlying rock, it is extremely susceptible to interference from the experimental environment and operation, and the requirements for use are extremely demanding; methods such as visual phenomenon judgment and phenomenon description cannot be compared with other quantitative indicators in a good synchronous analysis

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