DOI: 10.11799/ce201703012
Grouting reconstruction and effect analysis of coal floor aquiferin Xingyang Coal Mine
WANG Zhi-feng
ZHANG Yi-xin
Abstract：According to theoretical analysis,coal seam floor failure caused by mining 9th coal came through 10606up working face,and increased 23% and 12% to each water inrush coefficient of the confined aquifers,so the threat of water inrush in working face gone up.Based on the actual production of mine,floor grouting was carried out to enhance the aquiclude and ensure the safety of 10606up working face.Combined with grouting diffusion radius and water yield of the 17 grouting drills and mining situation,the thickness of aquiclude increased and zone of aquiclude got enhanced,so the mining safety was guaranteed.
Keywords：floor water inrushaquiferwater-resisting layergrouting reconstructionwater control
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 40-43 )