Abstract：Tieshan tunnel of the Bapeng road is located in Daxiang of Shichuan province with the total length of 2 099 m. The tunnel passes through coal mined-out area K17-1，K21 and K24. The deformation，cracking，alteration and falling occur at the secondary lining at the station of K140+527～608 due to the influence of mined-out area，underground water and other factors，which do harm to the traffic safety，and must be cured. The stability of roof rocks of mined-out area is analysed according to engineering geological conditions and the reinforcement technology of mined-out area is presented.
李治国. 铁山隧道采空区稳定性分析及治理技术研究[J]. 岩石力学与工程学报, 2002, 21(08): 1168-1173.
Li Zhiguo. STABILITY ANALYSIS AND REINFORCEMENT TECHNOLOGY OF MINED-OUT AREA IN TIESHAN TUNNEL. , 2002, 21(08): 1168-1173.
2002, Vol. 21 
