Abstract：Addressing the challenge of preventing dynamic-static coupling disasters during deep high-gas coal seam mining, this study investigates gas-stress coupling mechanisms to evaluate mining pressure hazards in the No. 3 coal seam at 700m depth in the Zhao Zhuang Mine. Through a combined approach of laboratory experiments, in-situ stress testing, and numerical simulation, this study reveals the weakening effect of gas adsorption on coal strength and establishes an integrated dynamic-static mine pressure hazard assessment system. Experiments demonstrated that the uniaxial compressive strengths of coal samples under gas pressures of 0 MPa, 1 MPa, and 2 MPa were 9.838 MPa, 9.254 MPa, and 8.338 MPa, respectively, confirming that the combined action of adsorbed and free gas leads to deterioration of coal strength. Field in-situ stress testing revealed the maximum horizontal principal stress direction as N36.67°W, aligning with the regional tectonic stress field orientation. This dominant horizontal stress significantly exacerbates roadway deformation risks. Based on three-dimensional in-situ stress inversion and dynamic excavation simulation, stress concentration zones ranging from 10 to 66.1 MPa were identified in the Zhao Zhuang Mine 1311 working face during the initial excavation phase (150-350 m), secondary excavation phase (415-655 m), cyclic pressure phase, and final mining phase (100 m ahead of the retreating support passage). Through comprehensive multi-factor coupling analysis, an evaluation method incorporating key indicators such as geological structures, face-out effects, and coal pillar zones was established, dividing the working face into four medium-risk and four general-risk zones. A targeted integrated prevention plan combining “roof directional fracturing + shaped charge blasting + controlled-rate mining” was proposed. This involved drilling 433 roof hydraulic fracturing holes, 317 shaped charge blasting holes, and 1,542 large-diameter pressure-relief holes. The research findings elucidated the mechanism of mining pressure-induced disasters in deep gas-bearing coal seams, establishing a technical framework encompassing “experimental research-in-situ stress inversion-dynamic evaluation-zonal prevention and control.” This achievement provides theoretical support and practical reference for preventing dynamic disasters in mines with similar conditions.