###### Abstract  
The focus of this paper is the thick soft rock mass roof of the track roadway in the No. 3606 panel of the Chaili Coal Mine. Due to its substantial thickness, the soft rock mass roof of the roadway is susceptible to damage and deformation during the mining process. In order to preserve the integrity of the roadway roof, a full anchor cable support scheme is proposed after studying the mechanism of bolt-anchor cable support. The supporting parameters and feasibility of the scheme were determined through support experience and numerical simulation analyses in the field. Moreover, on-site monitoring and data analysis were conducted, revealing that the anchor cables and anchor bolts played a stable role in supporting the roadway. The displacement of the roadway's roof and floor was minimal, as was the displacement of the two ribs. The overall deformation of the roadway was minor. Practice demonstrated that the full anchor cable support method was effective in supporting the immediate roof of thick soft rock. thick soft rock mass roof; full anchor cable support; surrounding rock stress; support parameters +
Footnote †: journal: Medical  
support technology through engineering practice and laboratory research. [PERSON] et al. studied the deformation properties of the surrounding rock of soft rock mass roadways based on theoretical mechanics and elastic-plastic mechanics, which provided a foundation for soft rock roadway support design [8; 9; 10; 11; 12; 13]. These are examples of innovative support techniques developed to address the challenges of supporting thick soft rock mass roofs in underground engineering. [PERSON] proposed support strategies based on energy balance theory to reinforce the roof support structure, cooperative control of roof support, and roadway support principles to investigate the instability factors and sensitivities of the extra-thick muddy roof in the roadway [14; 15]. [PERSON] developed an arch-beam-coupled support structure and applied it to a thick soft rock mass roof, resulting in significant improvement in roof stability control [16]. [PERSON] proposed an anchor cable-Tesla support system that can effectively control roof deformation and breakage, further demonstrating the effectiveness of anchor-cable-based support systems for thick soft rock mass roofs [17]. [PERSON] developed a mechanical model for energy-absorbing bolts that better models the yield support effect of energy-absorbing bolt cables in soft rock mass roofs [18]. [PERSON] utilized UDEC to simulate the movement behavior of a soft and thick roof in the goat of a fully mechanized caving face, concluding that the immediate roof forms an \"arch\" structure while the main roof fracture develops a \"three-hinged arches\" structure [19]. [PERSON] proposed using retractable U-shaped steel to support the thick soft rock mass roadway. Tests have shown that retractable U-shaped steel is capable of providing sufficient support to reduce deformation of the thick soft rock mass roof. However, compared to full anchor cable support, the installation of retractable U-shaped steel requires more time and is more expensive [20]. Some scholars have proposed a combined support system consisting of a strong cable truss and short cable to address the failure characteristics of roadways with strong dynamic pressure and thick mudstone roofs. They discussed the supporting principle of a strong stress zone in an arch bridge under the influence of strong support, and the coupling mechanism of a double arch bridge, which theoretically validates the rationality of the strong truss support system [21]. [PERSON] proposed the use of the coal wall water-flooding technology and metal roof frame support to improve the safety of roadway excavation [22]. Through continuous research and field tests by scholars, the support technology of roadways has been continually improved.