Spatial deduction of mining-induced stress redistribution using an optimized non-negative matrix factorization model

作     者：Xu-yan Tan Weizhong Chen Luyu Wang Changkun Qin Xu-yan Tan;Weizhong Chen;Luyu Wang;Changkun Qin

作者机构：State Key Laboratory of Geomechanics and Geotechnical EngineeringInstitute of Rock and Soil MechanicsChinese Academy of SciencesWuhan430071China University of Chinese Academy of SciencesBeijing100049China Department of Civil and Environmental EngineeringThe Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)

年 卷 期：2023年第15卷第11期

页      面：2868-2876页

核心收录：

学科分类：08[工学] 080104[工学-工程力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.51991392) Key deployment projects of Chinese Academy of Sciences(Grant No.ZDRW-ZS-2021-3) Project for Research Assistant of Chinese Academy of Sciences,and National Key R&D Program of China(Grant No.2021YFC3100805) 

主　　题：Machine learning Underground construction Monitoring Mining-induced stress Prediction 

摘      要：Investigation of mining-induced stress is essential for the safety of coal *** the field monitoring and numerical simulation play a significant role in obtaining the structural mechanical behaviors,the range of monitoring is not sufficient due to the limits of monitoring points and the associated numerical result is not *** this study,we aim to present a spatial deduction model to characterize the mining-induced stress distribution using machine learning algorithm on limited monitoring ***,the framework of the spatial deduction model is developed on the basis of non-negative matrix factorization(NMF)algorithm and optimized by mechanical *** this framework,the spatial correlation of stress response is captured from numerical results,and the learned correlation is employed in NMF as a mechanical constrain to augment the limited monitoring data and obtain the overall mechanical ***,the developed model is applied to a coal mine in Shandong,*** results show the stress distribution in one plane is derived by several monitoring points,where mining induced stress release is observed in goaf and stress concentration in coal pillar,and the intersection point between goaf and coal seam is a sensitive *** indicators used to evaluate the property of the presented model indicate that 83%mechanical performances have been captured and the deduction accuracy is about 92.9%.Therefore,it is likely that the presented deduction model is reliable.