Abstract: Integrated tunneling and bolting for rapid excavation represents a key pathway to resolving the imbalance between mining and excavation, unleashing advanced production capacity, and implementing intelligent, minimally-manned tunneling operations.Based on the bolter miner system, this study investigates its active zoning rapid excavation support mechanism and the resulting roof stability issues. It clarifies the equipment's coordinated support characteristics in both the axial direction and cross-sectional profile of the roadway, quantifies the relationship between equipment parameters and excavation speed, and defines the parallel tunneling-bolting zoning support mechanism. A Reissner thick-plate mechanical model is established for the zonal heading roof, and a new potential function is introduced to derive the relationship among spatial dimensions, deflection, and three-dimensional stress. Combined with numerical simulation, the spatiotemporal effects of variations in the partially supported zone on heading roof stability are analyzed, revealing the instability mechanism of the unsupported roof area following active zoning support during rapid excavation. Finally, field measurements, including roadway surface displacement, borehole imaging, and bolt (cable) stress, validate the rationality of the research.The study demonstrates that rationally quantifying the dynamic coupling relationship between the characteristic parameters of the integrated tunneling-bolting unit and the roadway advance rate enables the spatiotemporal transformation from “equipment parameters → support zone partitioning → spatiotemporal parameters” and facilitates the determination of zoning parameters. The Reissner thick-plate model indicates the existence of a critical value for the support intensity in the partially supported zone, beyond which roof subsidence and stress concentration are significantly alleviated, and identifies an optimal critical range for the length of the partially supported zone. Numerical simulations under specific roadway conditions reveal that as the length of the partially supported zone increases from 4 m to 10 m, the vertical displacement of the roof increases significantly while the vertical stress decreases markedly. When the lagging support time is extended from immediate to delayed support, roof displacement continues to grow, stress release intensifies, the plastic zone expands notably, and the self-supporting capacity of the surrounding rock weakens considerably. Field measurements in actively zoned roadways show that both surface displacement and bolt stress exhibit a trend of “initial rapid increase, followed by gradual growth, and eventual stabilization.” Borehole fractures undergo a dynamic evolution process: initially propagating from the unsupported zone, then being compacted and reduced in the partially supported zone, and finally closing after full support is installed. This indicates that after progressing from active zonal support to complete support, deep fractures, surface displacement, and bolt/cable stresses in the roadway roof all tend to stabilize. Thus, the coupling between the active parallel zoning process and roof stability is achieved, providing a theoretical foundation for the application of zoned support in rapid excavation.