DOI: 10.11799/ce201802016
Research on water prevention-control drilling engineering and hydrochemical characteristics of roadway driving under water pressure zone
FANG Gang
Abstract：In this paper, we took the advance drilling engineering of extended roadway drivage under water pressure zone in Suancigou Coal Mine as an example, and determined the water filling factors of roadway drivage according to the hydrogeological condition analysis of coal mine. Through on-site construction of advance detection based on the principal of"geophysical exploration and drilling verification", we found there were some big cracks under coal seam floor of the main west air-return way area. In the drilling engineering, about 31000m3water was discharged from roadway coal seam floor, and water quality characteristics of drilling water was analyzed, and the water quality was HCO3-Ca·Mg·Na type, which was different from HCO3·Cl-Ca·Na type of the Ordovician limestone water. No abnormal conductivity structure of collapse column was found in the exploration area, the safe roadway drivage under water pressure zone was ensured. The study can provide the basis for mine safety production in the future.
Keywords：under water pressure zoneroadway drivageadvanced drillinganalysis of water quality characteristicswater prevention
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 59-62 )