Jamal Rostami

TL;DR: In this paper, a series of full-scale laboratory disc cutting tests was conducted with a single disc cutter (432 mm diameter and a constant cross-section profile) and a single rock type (a coarse-grained red granite).

TL;DR: In this article, the authors proposed a new TBM performance prediction model based on a database of actual machine performance from different hard rock TBM tunneling projects, and analyzed the available data and offer new equations using statistical methods, relationships between different geological and TBM operational parameters were investigated.

TL;DR: In this paper, the authors used multivariate linear, non-linear and polynomial regression analyses of RMR input parameters to predict the TBM field penetration index (FPI).

TL;DR: In this paper, the authors present an overview of the Karaj Water Conveyance Tunnel (KWCT) operation and review the results of field performance of the machine, including analysis of available data including geological and geotechnical information and machine operational parameters, actual penetration and advance rates compared to the estimated machine performance using prediction models, such as CSM, NTNU and QTBM.

TL;DR: In this paper, the authors present a review of the capabilities of some of the more commonly used TBM performance prediction models and evaluate the accuracy of these models to support an improved level of predictive accuracy in penetration rate estimating.