School of Mines China University of Mining and Technology Xuzhou 221116 ChinaState Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology Xuzhou 221116 China;
School of Mines China University of Mining and Technology Xuzhou 221116 ChinaState Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology Xuzhou 221116 China;
State Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology Xuzhou 221116 ChinaSchool of Resources and Safety Engineering Central South University Changsha 410083 China;
Constitutive law; Cement-grouted coal specimens; Machine learning; Regression tree; Ensemble learning;