针对冲击地压临空回采巷道超前支护区域频繁发生冲击地压问题，以某严重冲击地压矿井为例，在深入分析41次冲击地压发生规律基础上，建立了本面采空区与侧向采空区上覆顶板连通作用工程力学模型，揭示了其诱发冲击机理，提出了交叉扇形断顶爆破防冲技术。研究结果表明：临空巷道侧向支承压力、侧向采空区支承压力、工作面超前支承压力和巷道交叉对冲击地压具有显著影响，叠加因素越多，发生冲击地压的概率越大，本面采空区与侧向采空区上覆厚硬顶板连通叠加作用是主控因素；本面采空区与侧向采空区上覆厚硬顶板连通形成直角扇形悬顶结构，大面积悬顶为冲击启动提供静载荷，达到极限垮断时提供动载荷，是冲击地压启动的载荷来源；临空巷道内超前支承压力影响区域是冲击危险性最高的区域，在该区域内实施交叉扇形断顶爆破卸压技术，可有效缩短侧向采空区、本面采空区连通直角扇形悬顶长度，降低动载荷源强度。研究为临空巷道回采期间冲击地压频繁发生提供了防治思路与方法。

This study investigated the frequent occurrence of rockbursts in the advanced support areas of gob-side mining roadways. Taking a mine with severe rockburst occurrences as an example, based on an in-depth analysis of the occurrence patterns of 41 rockburst events, an engineering mechanics model of the interaction between the overlying roof of bocal goaf and the lateral goaf was developed. The triggering mechanism was revealed and cross fan-shaped roof-cutting blasting technology for preventing rockburst was proposed. The results showed that lateral support pressure in the gob-side roadways, support pressure in the lateral goaf area, advanced support pressure in the working face, and roadway intersections all have a significant impact on the occurrence of rockbursts. The probability of rockbursts increased with the number of interacting factors, with the combined effect of the overlying thick and hard roof in both the local and the lateral primary goaf as the primary controlling factor. The interaction between these areas formed a right-angle fan-shaped hanging roof structure. The large hanging roof provided static load, which triggered rockbursts, and dynamic load when ultimate collapse occurred, thus acting as the load source for the occurrence of rockbursts. The area influenced by advanced support pressure in the gob-side roadway was identified as the highest-risk zone for rockbursts. Implementing cross fan-shaped roof-cutting blasting technology in this zone effectively shortened the length of the right-angle fan-shaped hanging roof connecting the lateral goaf and the local goaf, thereby reducing the intensity of the dynamic load source. This study provides a novel approach and methodology for preventing and controlling the frequent occurrence of rockbursts during gob-side roadway mining.