化工矿物与加工2025，Vol.54Issue(1)：39-48,10.DOI:10.16283/j.cnki.hgkwyjg.2025.01.006
基于KCC模型-ALE算法的充填体动力响应数值模拟研究
Numerical simulation study on dynamic response of backfill based on KCC model and ALE algorithm
摘要
Abstract
The cemented filling material,as an artificial pillar,is often disturbed by blasting from adjacent mining rooms,seriously affecting its stability.Based on the KCC(Karagozian and Case concrete)constitutive model and ALE(Arbitrary Lagrangian-Eulerian)fluid structure coupling algorithm,LS-DYNA software was used to conduct numerical simulation research on the effect of adjacent mining room blasting disturbance on cemented backfill.The effects of dif-ferent side hole spacing(0.6,1.2,1.8,2.4 meters)and curing age(14 days,21 days,28 days)were considered to reveal the propagation law of blasting waves in the backfill,and to explore the dynamic response and instability failure of cemented backfill caused by blasting disturbance.The research results indicate that the damage to the cemented backfill caused by blasting in adjacent mining areas is mainly concentrated at the boundary.To increase the ore recovery rate and ensure the safety of the backfill,it is recommended to adopt a 1.2 m spacing scheme between side holes;At least 21 days of maintenance are required for the backfill in mining blasting and mining;The area at the top and bottom of the backfill pillar at a young age is the weak part of the entire pillar,which is prone to instability,which should be closely monitored.关键词
胶结充填体/KCC模型/ALE流固耦合算法/边孔间距/LS-DYNA/爆破波/数值模拟Key words
cemented backfill/KCC model/ALE fluid structure coupling algorithm/edge hole spacing/LS-DYNA/blasting wave/numerical simulation分类
矿业与冶金引用本文复制引用
王平,景瑞华,程爱平,郑先伟,李鑫鹏,骆正杰..基于KCC模型-ALE算法的充填体动力响应数值模拟研究[J].化工矿物与加工,2025,54(1):39-48,10.基金项目
国家自然科学基金项目(51604195) （51604195）
湖北省自然科学基金项目(2018CFC818). （2018CFC818）
