南华大学学报（自然科学版）2025，Vol.39Issue(1)：44-55,12.DOI:10.19431/j.cnki.1673-0062.2025.01.007
考虑围岩应力梯度分布的岩爆预测的FCM-ANFIS模型
FCM-ANFIS Model for Rock Burst Prediction Considering Stress Gradient Distribution of Surrounding Rock
摘要
Abstract
On the basis of in-depth analysis of the influencing factors of rock burst,in order to quantitatively express the secondary stress distribution in the disturbed zone of sur-rounding rock,the concept of"stress concentration"is introduced,and the FCM-ANFIS(fuzzy clustering mean-adaptive network-based fuzzy inference system)model of rock burst is established.The results show that the stress concentration,strength stress ratio,brittle-ness coefficient and elastic energy index are used as the input indexes of the rock burst prediction model,and the influence of the stress distribution of surrounding rock is consid-ered,which makes the rock burst prediction index more comprehensive and reasonable.The ANFIS model improved by FCM algorithm avoids the defect that the number of fuzzy rules increases exponentially when the number of mesh segmentation is large,and improves the calculation efficiency and prediction accuracy.The prediction results of the test samples show that the prediction error of the FCM-ANFIS model considering the influ-ence of stress concentration is smaller and the prediction accuracy can be improved to 90%.关键词
岩爆预测/梯度应力/应力集度/FCM-ANFIS模型Key words
rock burst prediction/gradient stress/stress concentration/FCM-ANFIS mode分类
土木建筑引用本文复制引用
张文,陈文昭,胡荣,卢铎方..考虑围岩应力梯度分布的岩爆预测的FCM-ANFIS模型[J].南华大学学报（自然科学版）,2025,39(1):44-55,12.基金项目
湖南省自然科学基金项目(2023JJ30511) （2023JJ30511）
湖南省自然资源科研项目(20230144DZ) （20230144DZ）
湖南省教育厅项目(重点)(18A252) （重点）
