Post-grouting technology has been extensively used in geotechnical engineering to improve the bearing capacity of various piles, which overcomes technical limitations bored piles and recovers mechanical performance strata. A considerable amount earlier research conducted investigate behavior reinforcement mechanism grouted while very few studies focus on area post-grouting technique. The theore...

Abstract Grouting reinforcement is an effective method for controlling fractured rock in the deeply buried roadways of coal mines. However, quantitatively evaluating strength grouted masses remains a challenge. The design grouting primarily based on empirical knowledge. Consequently, this study proposes real-time in-situ quality using measure while drilling (MWD) roofbolter. Initially, we valid...

Abstract The shield construction is a mature tunnel technology. Grouting behind segment wall synchronously during an important measure to control stratum deformation, reduce ground settlement and prevent water seepage. quality of grouting can significantly affect the construction. method judgment in early inefficient uncertain. To ensure safety structure, it urgent technical innovation study no...

this study aims at presenting a numerical model for predicting grout flow and penetration length into the jointed rock mass using universal distinct element code (udec). the numerical model is validated using practical data and analytical method for grouting process. input data for the modeling, including geomechanical parameters along with grout properties, were obtained from a case study. the...