Comparative evaluation of different statistical tools for the prediction of uniaxial compressive strength of rocks

• 作者: Ahmet Teymen Engin Cemal Mengu?
• 来源期刊: 矿业科学技术学报（英文版）
• 年，卷（期）: 2020,（6）
• 页码范围: 785-797
• 页数: 13页
• 语种: 英文

摘要

In this study,uniaxial compressive strength (UCS),unit weight (UW),Brazilian tensile strength (BTS),Schmidt hardness (SHH),Shore hardness (SSH),point load index (Is50) and P-wave velocity (Vp) properties were determined.To predict the UCS,simple regression (SRA),multiple regression (MRA),artificial neural network (ANN),adaptive neuro-fuzzy inference system (ANFIS) and genetic expression programming(GEP) have been utilized.The obtained UCS values were compared with the actual UCS values with the help of various graphs.Datasets were modeled using different methods and compared with each other.In the study where the performance indice PIat was used to determine the best performing method,MRA method is the most successful method with a small difference.It is concluded that the mean Plat equal to 2.46 for testing dataset suggests the superiority of the MRA,while these values are 2.44,2.33,and 2.22 for GEP,ANFIS,and ANN techniques,respectively.The results pointed out that the MRA can be used for pre-dicting UCS of rocks with higher capacity in comparison with others.According to the performance index assessment,the weakest model among the nine model is P7,while the most successful models are P2,P9,and P8,respectively.