采矿与岩层控制工程学报2026，Vol.8Issue(1)：293-305,13.DOI:10.13532/j.jmsce.cn10-1638/td.2025-1166
采场覆岩裂隙空间演化与矸石浆体介入充填规律研究与应用
Research and application of the spatial evolution of overburden fractures and the law of gangue slurry interventional filling in the stope
摘要
Abstract
This study is aimed at addressing the challenges in quantitatively characterizing the spatial distribution features and filling volume of overburden fractures during gangue slurry filling.To achieve this aim,the overburden migration patterns and fracture development mechanisms within the stope were systematically investigated.Besides,a quantitative computational model was developed to evaluate cavity and fracture spaces in both caved and fractured zones,and the regulatory effects of key parameters including mining height,rock fragmentation coefficient,compacted zone length of the caved zone,and working face advance length on fracture space evolution were elucidated.The results show that the volume of cavity and fracture spaces in the non-compacted zone of the caved zone is about 2.5 times that in the compacted zone and about 7.5 times that in the fractured zone.On this basis,three gangue slurry interventional filling experiments of different scales were performed,and the flow and diffusion dynamics within the caved zone were analyzed.Furthermore,a theoretical predictive model for gangue slurry interventional filling volumes applicable to both low-level grouting and adjacent grouting methods was established.Field validations demonstrate that gangue slurry exhibits excellent flow and diffusion performance in the caved zone,with model predictions showing strong agreement with actual filling volumes.The proposed framework provides reliable theoretical guidance for gangue slurry filling engineering applications.关键词
矸石浆体/覆岩裂隙/介入充填/理论预测Key words
coal gangue slurry/overburden fractures/interventional filling/theoretical prediction分类
矿业与冶金引用本文复制引用
潘浩,谢生荣,古文哲,宋天奇,秋丰岐,杜星..采场覆岩裂隙空间演化与矸石浆体介入充填规律研究与应用[J].采矿与岩层控制工程学报,2026,8(1):293-305,13.基金项目
国家自然科学基金资助项目(52074296) （52074296）
