###### Abstract  
Aiming at solving the problem of support failure caused by a large deformation of roadway surrounding rock in a deep soft coal seam, and taking the surrounding rock control of the roadway in the 11-2 coal seam in Zhujidong Coal Mine as the research background, numerical simulation and field industrial test and inspection methods were used to study the support effect of a supporting system of gob-side entry in deep soft coal seam. The deformation characteristics of various supporting systems of metal mesh, diamond mesh, metal mesh with anchor rod, steel ladder beam, M-shaped steel belt, 14# channel steel, and 11# I-steel in the goat supporting body of deep soft coal seam were studied under vertical load. The supporting effect of effective compressive stress zone generated by bolt and cable under different row spacings and lengths was analyzed, and the law of variation in the compressive stress field generated by supporting members with supporting parameters was explored. The length and interrow distance of bolt and cable were compared, respectively, and reasonable supporting parameters were selected. Based on the abovementioned research results and the geological conditions of the 1331 (1) track roadway, the support scheme of the 1331 (1) track roadway was designed, and the industrial test was carried out. The results show that the surrounding rock of the roadway is within the effective anchorage range of the supporting body, the active support function of the supporting components has been fully brought into play, and the overall control effect of the surrounding rock of the roadway is good, which can ensure the safety and stability of the goat roadway. The maximum displacement of the roof and floor of the roadway is 86 mm, the maximum displacement of the solid coal side is 50 mm, the maximum displacement of the coal pillar side is 70 mm, and the maximum separation of layers is 22 mm. There is no failure phenomenon in relation to the anchor bolt and cable, and the overall deformation of the roadway surrounding the rock is good, which can provide some references for roadway-surrounding-rock control under similar conditions in deep coal seams. gob-side entry; combined components of anchor bolt and anchor cable support; stability of roadway; deep soft coal seam; numerical simulation +
Footnote †: journal: Medicalseries of support problems. The support technology of gob-side roadway in deep soft coal seams has always been one of the main research focuses in the field of coal mining. Scholars at home and abroad have put forward many classical theories on the control of the surrounding rock of roadway and achieved a lot of research results. [PERSON] and [PERSON] [1; 2] conducted a statistical analysis on the diversity of dangerous sources of deep-coal-mining accidents, established a comprehensive safety index system for deep-well roadway rock accidents, and evaluated the stability of deep-roadway surrounding rock. Plastic deformation and failure first appear on the side of the roadway and then expand to other parts to explore the stability of the surrounding rock during deep mining. A control scheme for the surrounding rock of deep roadways is proposed and verified through on-site industrial tests [3]. The stress concentration area of the surrounding rock of deep roadways is far away from the surrounding area and has a larger size. The maximum concentration coefficient is slightly smaller than that of shallow roadways. There is a large range of broken zones in the surrounding rock of deep soft rock roadways [4]. Aiming to solve the support problem of rock burst in the deep roadway of the 401,111 fully mechanized caving working face, a control scheme for the surrounding rock of the return air roadway is proposed with large-diameter pressure relief and deep hole blasting as the main pressure-relief means [5].