DOI: 10.11799/ce201709006
Deformation regularity and control of surrounding rock under the effect of roadway roof drainage and slow penetration grouting
YANG Teng
ZHANG Qing-song
ZHANG Xiao
ZUO Jin-xin
SUI Hai-tong
Abstract：Combined with engineering practice of Guotun Coal Mine, through the grouting treatment for water gushing of fault in air -return roadway, the drainage and slow penetration grouting technology was put forward. In this paper we expounded the dynamic deformation regularity of surrounding rock of roadway under drainage and grouting construction, carried out related theoretical analysis, and put forward the technical points and the corresponding suggestions for deformation control of surrounding rock. The monitoring results show that the factors affecting the deformation of surrounding rock are the arrangement of drainage holes, the design of shallow grouting holes and grouting parameters. The former two are the main factors, and the latter is the dynamic factor. In the actual operation, two main factors can be optimized, and the grouting parameters can be adjusted dynamically to control the deformation of surrounding rock, eliminate the potentially dangerous. The application showed that the surrounding rock monitoring and control technology achieved the purpose of improving the quality of the roof, and the water plugging rate was as high as 96%. Compared with the traditional grouting technology for crushed zone, it has been greatly improved to ensure the effect of governance and reinforcement.
Keywords：drainage and pressure relieflow pressure penetrationgroutingmonitoring measurementsurrounding rock deformationdynamic adjustment
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( 23-26 )