DOI: 10.11799/ce202512002
Analysis on development and application of gob-side entry retaining and high-water material backfilling technology
CHEN Zhisong
XU Youlin
CHEN Shoukun
LI Bin
WU Shaokang
WU Xukun
ZHANG Jitao
Abstract：In order to improve the stability and safety of roadway in mining engineering,through 60 years of sustained global research optimization,the mining engineering community has established a robust theoretical-practical framework for gob-side entry retaining and surrounding rock control.We analyzed the application of gob-side entry retaining in different mining modes,such as forward,regressive and reciprocating mining.At the same time,we elaborated on the five key surrounding rock control technologies of gob-side entry retaining,namely surface support,anchorage,modification,pressure relief and joint control.On this basis,we further discussed the application scenarios of filling and roof-cutting gob-side entry retaining.In particular,in the practice of filling gob-side entry retaining,by comparing with other filling materials and methods,the unique properties of high water material and their application characteristics in the filling process were deeply analyzed.Experiments and field data proved that the filling technology of high water material can effectively strengthen the structural strength of roadway,significantly reduce the risk of safety accidents,and significantly improve the recovery rate of coal resources.In addition,we also studied the construction technology,including the key elements of material proportioning and filling methods.
Keywords：high-water materialsnon-pillar coal miningStay along the empty lanesurrounding rock controlroadside support
Publication Date：2025-12-20
Online Publishing Date：2026-01-29(First online date of this platform, not the publication date of the document)
Pages：11( 7-17 )