Numerical Simulation for Combined Support of Large Deformation in Road Way Very Weak Cementation Mudstone

In view of failure problems of Chagannaoer No.1 well, according to the methods of theoretical analysis, lab experiments, field monitoring and numerical analysis, combined with a variety of research methods, we reveal the causes of large deformation and failure; and with the help of finite element numerical simulation software MIDAS/GTS, we explore the different support schemes of roadway, finally, bolt + grouting + roof and floor anchor + steel + spray lining for controlling large deformation of the roadway has a significant effect.