DOI: 10.11799/ce201606016
Research and application of borehole sealing technology with drilling cuttings in Daping coal mine
LI Hui
XIAO Yun-tao
Abstract：Mine gas disaster is one of the major factors affecting coal mine safety production, gas pre-drainage can effectively release the gas potential in the coal seam, the nature of the change of coal itself, achieve the goal of eliminating coal seam outburst danger area. Aiming at the low gas concentration, substandard drainage effect and poor hole sealing effect, the paper introduces a new type gas drainage hole sealing process, namely the capsule bag pressured grouting hole sealing technology with drilling cuttings backfilling; analyzes the hole sealing principle, method of hole sealing, hole sealing effect and hole sealing cost, etc. Compared with the polyurethane sealing in Daping coal mine, the sealing effect, sealing efficiency, and labor intensity are greatly improved. Favorable effect is achieved in the laboratory test and hole grouting sealing practice in Daping mine.
Keywords：drilling cuttings backfillinghole sealing methodcapsule bag pressured groutingpolyurethane hole sealing processcoal seam gas pre-drainage
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 51-53,57 )