OICC Press Iranian Journal of Earth Sciences 2228-785X 17 3 2025 07 10 Assessment of Field Displacement for Implications of Support Design in Tunneling 10.57647/j.ijes.2025.16863 EN Naeem Abbas Faculty of Land Resources Engineering, Kunming University of Science and Technology, China; Department of Mining Engineering Karakoram International University (KIU), Gilgit, Pakistan Ke-Gang Li Faculty of Land Resources Engineering, Kunming University of Science and Technology, China Muhammad Zaka Emad King Fahad University of Petroleum and Minerals-KFUPM Dhahran, Kingdom of Saudi Arabia Qingci Qin Faculty of Public Security and Emergency Management, Kunming University of Science and Technology, China Mingliang Li Faculty of Land Resources Engineering, Kunming University of Science and Technology, China Kausar Sultan Shah Department of Mining and Mineral Resource Engineering, NUST, Quetta, Pakistan Rui Yue Faculty of Land Resources Engineering, Kunming University of Science and Technology, China Shuai Qiu Faculty of Land Resources Engineering, Kunming University of Science and Technology, China Khan Gul Jadoon Department of Mining Engineering Karakoram International University (KIU), Gilgit, Pakistan Journal Article 2025 07 10 In tunnel engineering, accurately predicting displacement in jointed rock masses is crucial for stability and safety. Analytical and numerical methods are commonly used to evaluate tunnel wall displacement and the effectiveness of support systems. Duncan-Fama and Carranza-Torres solutions have been employed to predict tunnel wall displacement using the ground reaction curve, both before and after support installation. A significant difference in tunnel wall displacement were observed between the two methods when the support was applied. The numerical method yielded lower displacement values compared to the analytical method. The pullout test shows the rock bolts' effective stress distribution and stability, evident through their linear stress-displacement relationship and significant yield strength expansion. The integration of both analytical and numerical methods allows for a comprehensive understanding of displacement behavior, enhancing the design and implementation of effective support systems in tunnel engineering.