## 7 Conclusions  
Aiming at solving the problem of support failure caused by large deformation of roadway surrounding rock in deep soft coal seam, the support effect of the supporting system of gob-side entry in a deep soft coal seam was studied by using a numerical simulation and field industrial test and inspection. The deformation characteristics of various supporting systems of metal mesh, diamond mesh, metal mesh with anchor rod, steel ladder beam, and M-shaped steel belt in the goat supporting body of deep soft coal seam were studied under vertical load. The supporting effect of the effective compressive stress zone generated by bolt and cable under different row spacings and lengths was analyzed, the law of variation in compressive stress field generated by supporting members with supporting parameters was explored, and the reasonable supporting parameters were optimized. The main conclusions are as follows:  
1. Based on the effective compressive stress zone generated by the anchor bolt and cable support components, the supporting effect of the support components was analyzed, and the law of the compressive stress field generated by the support components that varied with the supporting parameters was obtained. The supporting effect of bolt and cable under different length, spacing, and preload was simulated and analyzed, respectively. The turning point of compressive stress-zone change under different supporting parameters was determined, and the critical supporting parameters of effective compressive stress zone continuous and good supporting effect were selected. 2. When different support systems were under the same fixed load, the maximum deformation of the metal mesh was 239.61 mm, the maximum deformation of the diamond mesh was 578.86 mm, the maximum deformation of the 12# steel ladder beam was 193.77 mm, the maximum deformation of the 14# steel ladder beam was 161.62 mm, the maximum deformation of the M-shaped steel strip was 78.066 mm, and the maximum deformation of 14#b channel steel was 110.87 mm, while that of 11# I-steel was 135.57 mm. The strongest resistance to deformation was observed in the M-shaped steel strip, and the worst resistance to deformation was observed in the diamond mesh. 3. The support scheme of the 1331 (1) track roadway was designed, and the industrial test was carried out. The investigation results of the stability of the surrounding rock of the 1331 (1) track roadway showed that the maximum displacement of the roof and floor of the roadway was 86 mm, the maximum displacement of the solid coal side was 50 mm, the maximum displacement of the coal pillar side was 70 mm, and the maximum separation of strata was 22 mm. The load of the anchor bolt and anchor cable was less than the critical warning value stipulated by the coal industry company, there was no failure phenomenon of anchor bolt and cable, and the overall deformation of the roadway surrounding rock was small. The results of the stability investigation of the surrounding rock of the 1331 (1) track roadway show that the overall deformation of the surrounding rock of the roadway was small, which indicated that the roadway support scheme in this study was reasonable, and the research results can provide a reference for other roadway-surrounding-rock control under similar conditions in the 11-2 coal seam of Zhujidong Coal Mine. **Author Contributions:** Methodology, H.M. and Z.L. ; software, C.J. and H.Z. ; validation, S.Z. ; investigation, S.Z., H.Z., C.J. and H.M.; data curation, H.Z. and C.J. ; writing--original draft preparation, H.M. and C.J. ; writing--review and editing, Z.L. and S.Z. ; visualization, S.Z. and Z.L. ; supervision, Z.L. All authors have read and agreed to the published version of the manuscript. **Funding:** This research was funded by the National Natural Science Foundation of China Youth Program (52304074, 51974007), the Anhui University of Science and Technology 2022 Graduate Core (first-class) Course Construction Project (2022 HX002), and the 2023 New Era Education Quality Project (2023 zyxwjzalk070).