## 1 Introduction
[23] discussed the characteristics of unstable failure in kilometer-deep roadways under different pressure coefficients and analyzed the severe impact of high in situ stress on the stability of coupling-bearing strata. [PERSON] [24] studied the failure scope, displacement trend, and stress distribution of elastic, plastic, and fracture zones in the surrounding rock before and after excavating deep soft rock roadways. Due to the complexity of geologic conditions and the diversity of engineering rock mass, there are various types of deep soft rock roadways whose failure mechanisms remain to be revealed. The high-stress soft rock roadways are also studied at home and abroad concerning control techniques through engineering practice. The existing techniques are mainly divided into active reinforcement and passive load bearing, such as U-shaped steel supporting, pre-stressed bolt-cable supporting, rock grouting, and surrounding rock pressure releasing. [PERSON] et al. [25] proposed the collaborative control concept of \"three-actives\" (active support with high-stress bolts--active grouting modification--active pressure relief by hydraulic fracturing) for high-stress and high-strength mining roadways in kilometer-deep mines. [PERSON] et al. [26] discovered the butterfly-shaped plastic zone and put forward the theory of malignant expansion and the control theory of deep large-scale deformation. [PERSON] et al. [27] developed the full-section deep-shallow coupled bolt grouting support for deep soft rock roadways. [PERSON] et al. [28] suggested supporting the high-stress soft rock roadways using concrete-filled steel tubes to avoid large deformation. [PERSON] et al. [29] stabilized the soft rock readways at a depth of \(-1180\) m using \"U-shaped steels + roof bolts and cables + floor grouting cables\". [PERSON] and [PERSON] et al. [30] realized the gob-side entry retaining design in multiple mining areas by \"anchoring + grouting + I-shaped beams + articulated steel bars + paste filling\". [PERSON] et al. [31] proposed an integrated support scheme for complementary control over seriously deformed high-stress roadways. [PERSON] et al. [32] believed that the key to surrounding rock control in deep roadways was to strengthen the surrounding rock, transfer the high stress, and adopt reasonable support. [PERSON] et al. [33] established the new square steel confined concrete (SQCC) supporting system. The surrounding rock in many deep soft rock roadways has been effectively controlled by existing support schemes, but these schemes, with their own geological characteristics, are not exactly applicable to other projects, especially in tectonic stress zones, fault fracture zones, and complex crossing-seam zones. As the primary type of roadway in coal mining operations, crossing-seam roadways typically cut through various rock formations at an incline to meet the requirements of the mining process. This results in highly complex conditions for the surrounding rock of the tunnel, particularly in deep areas where high stress is present. In these cases, it can be extremely challenging to maintain and control roadways that pass through weaker rock layers and their surrounding formations. The return air subinclined shaft in the Wuju Coal Mine is a typical deep soft rock roadway with high stress, which passes through dozens of strata composed of mudstone, coal, sandy mudstone, and sandstone. Additionally, this roadway is significantly affected by geologic structures, with a side-pressure coefficient of 1.4-1.5, complicating the occurrence conditions and stressful environments of its surrounding rock. However, it is only supported by the conventional \"bolt-cable-mesh-spraying\" method, which is so inadequate that the surrounding rock located in soft rock formations deforms within one month and cannot be stabilized through repeated restoration.