 The GERC method is an advanced mining technique that improves coal recovery and reduces accidents in hard rock formations, but requires further research on soft rock formations like mudstone. This paper analyzes the failure mechanism of roadways at the CineCole mine, proposes the GERC method with strength and support, establishes evaluation indexes, conducts a numerical comparison test, and finds that CRCSS reduces deformation by 75.77%. The field application results show that CRCSS reduces surrounding rock deformation by more than 55%, improves cable safety margin, and reduces over pressure and stability distance of the roadway. The mechanism to control roadway deformation by CRCSS is discussed, providing a reference for similar geological conditions. This article was authored by Ting Chun Li, Ching Wen Xu, Ching Nan Lu, and others.