DOI: 10.11799/ce201701013
Control technology for roadway water drainage construction in strong aquifer with cataclastic rock mass
SUN Jing-tao
YANG Li-juan
Abstract：The roadway construction control technology of drilling to draw off water and grouting to plug water was put forward based on summary and analysis of soft roadway water burst mechanism of coal mines in Western China. The roadway deformation and stress distribution characteristics of surrounding rock with two control methods of grouting to plug water and dredging and plugging were analyzed with numerical simulation, and the key construction control technology of roadway in strong aquifer was established. The results show that the lithology of water-resisting layer and mining pressure are the key cause of roadway water inrush. The deformation and stress development of surrounding rock had been effectively controlled drainage and plugging construction in water-rich roadway, the roof subsidence decreased by 60% and surrounding rock stress concentration reduced by 22%, which ensured the overall stability of roadway.
Keywords：cataclastic rock massstrong aquiferwater drainage roadwaynumerical analysiswater plugging with grouting
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( 42-45 )