DOI: 10.11799/ce201704011
Technological set of gas drainage drilling hole sealing and its application
LIU Yan-bao
Abstract：The sealing quality of gas drainage drilling hole is one of the major factors for gas drainage effect.Aiming at the problems of gas drainage sealing quality,a hole sealing technological set with novel inorganic sealing material and hole sealing implement was proposed,which perfected the pressurized grouting hole sealing technology of "two sealing and one grouting".The technology was tested in the Baode Coal Mine,and the average gas concentration of test drilling group was over 80% in the 100 days inspection period,the problem caused by poor-quality hole sealing was effectively solved.And it provided the data reference and suggestion for the selection of gas drainage hole sealing technology in Baode Coal Mine.
Keywords：gas drainagesealing technologysealing qualitytechnological set
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( 32-35 )