An evolutionary adaptive neuro-fuzzy inference system for estimating field penetration index of tunnel boring machine in rock mass

Parsajoo M. Mohammed A.S. Yagiz S. Armaghani D.J. Khandelwal M.
December 2021 Chinese Academy of Sciences

Journal of Rock Mechanics and Geotechnical Engineering
2021 #13 Issue 6 1290 - 1299 pp.

Field penetration index (FPI) is one of the representative key parameters to examine the tunnel boring machine (TBM) performance. Lack of accurate FPI prediction can be responsible for numerous disastrous incidents associated with rock mechanics and engineering. This study aims to predict TBM performance (i.e. FPI) by an efficient and improved adaptive neuro-fuzzy inference system (ANFIS) model. This was done using an evolutionary algorithm, i.e. artificial bee colony (ABC) algorithm mixed with the ANFIS model. The role of ABC algorithm in this system is to find the optimum membership functions (MFs) of ANFIS model to achieve a higher degree of accuracy. The procedure and modeling were conducted on a tunnelling database comprising of more than 150 data samples where brittleness index (BI), fracture spacing, α angle between the plane of weakness and the TBM driven direction, and field single cutter load were assigned as model inputs to approximate FPI values. According to the results obtained by performance indices, the proposed ANFIS_ABC model was able to receive the highest accuracy level in predicting FPI values compared with ANFIS model. In terms of coefficient of determination (R²), the values of 0.951 and 0.901 were obtained for training and testing stages of the proposed ANFIS_ABC model, respectively, which confirm its power and capability in solving TBM performance problem. The proposed model can be used in the other areas of rock mechanics and underground space technologies with similar conditions.

Artificial bee colony (ABC) , Evolutionary computation , Field penetration index (FPI) , Neuro-fuzzy technique , Tunnel boring machine (TBM)

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Department of Mining Engineering, Imam Khomeini International University, Qazvin, 34149-16818, Iran
Civil Engineering Department, College of Engineering, University of Sulaimani, Kurdistan Region, 46001, Iraq
School of Mining and Geosciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
Department of Urban Planning, Engineering Networks and Systems, Institute of Architecture and Construction, South Ural State University, Chelyabinsk, 454080, Russian Federation
School of Engineering, Information Technology and Physical Sciences, Federation University Australia, Ballarat, 3350, Australia

Department of Mining Engineering
Civil Engineering Department
School of Mining and Geosciences
Department of Urban Planning
School of Engineering

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