Calculation of surface settlements caused by EPBM tunneling using artificial neural network, SVM, and Gaussian processes |
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| Authors: | Ibrahim Ocak Sadi Evren Seker |
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| Institution: | 1. Mining Engineering Department, Engineering Faculty, Istanbul University, Avcilar, Istanbul, Turkey
2. Computer Engineering Department, Engineering Faculty, Istanbul University, Avcilar, Istanbul, Turkey
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| Abstract: | Increasing demand on infrastructures increases attention to shallow soft ground tunneling methods in urbanized areas. Especially in metro tunnel excavations, due to their large diameters, it is important to control the surface settlements observed before and after excavation, which may cause damage to surface structures. In order to solve this problem, earth pressure balance machines (EPBM) and slurry balance machines have been widely used throughout the world. There are numerous empirical, analytical, and numerical analysis methods that can be used to predict surface settlements. But substantially fewer approaches have been developed for artificial neural network-based prediction methods especially in EPBM tunneling. In this study, 18 different parameters have been collected by municipal authorities from field studies pertaining to EPBM operation factors, tunnel geometric properties, and ground properties. The data source has a preprocess phase for the selection of the most effective parameters for surface settlement prediction. This paper focuses on surface settlement prediction using three different methods: artificial neural network (ANN), support vector machines (SVM), and Gaussian processes (GP). The success of the study has decreased the error rate to 13, 12.8, and 9, respectively, which is relatively better than contemporary research. |
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