7201 coalface in Longgu Mine,based on the overhead mining stress influence range,the authors put forward a scheme,which is called sub area reinforcement using small aperture anchor.

• 文中针对龙固煤矿7201工作面赋存特点,根据跨采采动应力对下山影响范围,提出了对跨采下山以小孔径锚索进行"分区加固"的方案。