CAJ | 학술논문

采用数值模拟的方法，针对南屯煤矿93下05工作面上覆及侧向采空复杂条件下多工作面相继采空的复杂地质条件，对多工作面开采下93下05工作面沿空侧围岩结构的动态演化过程进行了研究，得出基于南屯煤矿的近距离煤层多工作面开采后的沿空侧相应的围岩结构动态演化规律：93下07工作面回采后，93下07采空区下帮侧6 m范围内围岩以碎裂结构为主，沿空巷道附近其他位置以块裂结构为主；93上05工作面及93上03工作面回采后，3下煤顶板以碎裂结构为主，沿空巷道附近其他位置仍以块裂结构为主。
채용수치모의적방법，침대남둔매광93하05공작면상복급측향채공복잡조건하다공작면상계채공적복잡지질조건，대다공작면개채하93하05공작면연공측위암결구적동태연화과정진행료연구，득출기우남둔매광적근거리매층다공작면개채후적연공측상응적위암결구동태연화규률：93하07공작면회채후，93하07채공구하방측6 m범위내위암이쇄렬결구위주，연공항도부근기타위치이괴렬결구위주；93상05공작면급93상03공작면회채후，3하매정판이쇄렬결구위주，연공항도부근기타위치잉이괴렬결구위주。
By adopting the method of numerical simulation, a research has been conducted to study the dynamic evolutional course of surrounding rock structure of 93 d 05 working face along gob side after excavation of multiple working faces, in response to the complex geological condition of 93 d corresponding 05 work-ing face with overlying and lateral excavation in Nantun coal mine. The dynamic evolu-tional course is obtained as follows:surrounding rock in the 93 d 07 working face along gob side within a range of 6 m is mainly cataclastic structure after excavation of 93 d 07 working face,and the rock in the other location around gob-side entry is mainly block structure;3 d coal roof is mainly cataclastic structure after excavation of 93 u 05 working face and 93 u 03 working face, and the other rock around gob-side entry is mainly block structure.