Research on the strain law of shaft wall during ground grouting for resolving shaft wall rupture
MIAO Lei
XI Baoyin
ZHAO Yanpeng
WEI Kai
QIN Daoxia
Abstract：Taking the ground grouting treatment of the broken and leaking shaft in the auxiliary shaft of Chenmanzhuang Coal Mine as an example,the changes in the shaft wall strain during the grouting process were analyzed through the shaft wall strain monitoring system.The results show that the ground grouting effectively"released"and"suppressed"the additional stress of the shaft wall,but could not fundamentally eliminate the additional stress;the vertical strain was mainly"released",while the horizontal strain was mainly"accumulated",but the degree of strain"release"or"accumu-lation"at different layers and in different directions was different;under the condition of ensuring safety,there was no obvious regularity between the grouting volume and grouting pressure and the triggering of shaft wall strain;the height difference between the grouting point and the monitoring point had an important influence on the change of shaft wall strain,while the angle difference between the two had no obvious influence bias.This conclusion can provide guidance for similar mine shaft wall fracture prevention and treatment projects.
Keywords：shaft wall rupturereinforcementground groutingshaft wall strain
Publication Date：2026-02-28
Online Publishing Date：2026-01-31(First online date of this platform, not the publication date of the document)
Pages：8( 99-106 )