Application of “coal-rock” spatial three-dimensional micro-seismic monitoring array for floor water hazard in the floor of Xinji No.2 Mine

CHEN Jiandong; ZHAO Lisong; ZHANG Aihua; LU Gang

Safety in Coal Mines > 2023 > 54(5): 133-139.

CHEN Jiandong, ZHAO Lisong, ZHANG Aihua, LU Gang. Application of “coal-rock” spatial three-dimensional micro-seismic monitoring array for floor water hazard in the floor of Xinji No.2 Mine[J]. Safety in Coal Mines, 2023, 54(5): 133-139.

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Application of “coal-rock” spatial three-dimensional micro-seismic monitoring array for floor water hazard in the floor of Xinji No.2 Mine

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Published Date: May 19, 2023

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Abstract

Taking Xinji No.2 mine in Xinji Mining Area as the research object, with the help of the field advantage of the floor rock roadway in the mining area, the monitoring array effects under different combinations of coal roadway and floor rock roadway were compared and analyzed through field tests. Three spatial three-dimensional “coal-rock” micro-seismic monitoring arrays based on floor rock roadway are proposed, which are “point-surface”, “line-line” and “line-surface” respectively, and the existing micro-seismic monitoring array layout was optimized. The research shows that the “coal-rock” spatial three-dimensional micro-seismic monitoring method has made significant progress in terms of positioning accuracy, monitoring range, service cycle and economic cost.

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