https://zealpress.com/jms/index.php/ijrat <p>International Journal of Robotics and Automation Technology providing a platform to researchers, scientists, engineers and practitioners throughout the world to publish the most up-to-date accomplishment, upcoming challenges and thrilling applications in the field of Robotics and Automation Technology.</p> <p>This technology deals with the design, construction, operation, and application of robots as well as control systems for operating equipment such as machinery, processes in factories, boilers and heat treating ovens, switching in telephone networks, steering and stabilization of ships or aircraft and other applications with minimal or reduced human intervention.</p> Zeal Press en-US International Journal of Robotics and Automation Technology 2409-9694 https://zealpress.com/jms/index.php/ijrat/article/view/640 <p>This study is based on the background that the tunnel of Ningbo Metro Line 8 passes beneath the tunnel of Line 1. A three-dimensional numerical model was developed using Midas to simulate the deformation induced by the construction of the new Line 8 tunnel beneath the existing Line 1 tunnel. The results show that the maximum lateral horizontal deformation, longitudinal horizontal deformation, and vertical deformation of the Line 1 tunnel occur after the excavation of the Line 8 tunnel is completed. Notably, all deformations comply with the settlement control standards for existing tunnels in urban rail transit systems in China. After the excavation of the Line 8 tunnel is completed, the maximum surface settlement is less than the settlement control value, indicating that the excavation of Line 8 tunnel has less additional impact on the Line 1 tunnel. It is recommended that, during the construction of the new tunnel, intensive monitoring of the existing tunnel is implemented, particularly focusing on settlement in the central section, to mitigate the risk of structural damage due to excessive deformation.</p> Pingchuan Lai Kai Yan Linlong Mu Copyright (c) 2025 International Journal of Robotics and Automation Technology 2025-02-03 2025-02-03 12 1 8 10.31875/2409-9694.2025.12.01