山东煤炭科技2025，Vol.43Issue(5)：162-167,6.DOI:10.3969/j.issn.1005-2801.2025.05.031
厚松散层薄基岩开采覆岩破坏及裂隙发育规律研究
Research on Overburden Rock Failure and Fissure Development Laws in Thick Loose Layer Thin Bedrock Mining
靳磊 1张光明 2丁银磊1
作者信息
- 1. 山东科技大学能源与矿业工程学院,山东 青岛 266590
- 2. 兖矿能源集团股份有限公司兴隆庄煤矿,山东 济宁 272100
- 折叠
摘要
Abstract
Aiming at the problem of loose aquifer communication through roof fissures,which leads to the intrusion of water-sand mixture into working faces and causes water and sand inrush,this study takes the water and sand inrush accident in Wanfu Coal Mine of Juye Coalfield as the engineering background,and adopts the method of similar material simulation experiment to study the overburden rock failure and fissure development laws during the coal seam mining process under thick loose layers.The focus is on observing the height of fissure development,the state of roof failure,and changes in overburden rock displacement.The experimental results show that the height of the fissure zone obtained from the similar model test is slightly higher than the calculation result of the standard formula,mainly due to the conditions of relatively large burial depth of coal seams in the study area and the high geostress.Overall,model tests can effectively reflect the development laws of water conducting fissure zones after overburden rock failure,providing an important reference basis for mine safety production.关键词
厚松散层/薄基岩/突水溃砂/裂隙发育Key words
thick loose layer/thin bedrock/water and sand inrush/fissure development分类
矿业与冶金引用本文复制引用
靳磊,张光明,丁银磊..厚松散层薄基岩开采覆岩破坏及裂隙发育规律研究[J].山东煤炭科技,2025,43(5):162-167,6.
