Timalsina, A., Nischal Dhakal, & Ujjan Paudel. (2022). A Case Study of Cavity Formation and its Rectification Works in Small Sized Tunnels with Excessive Water Inflow. American Scientific Research Journal for Engineering, Technology, and Sciences, 88(1), 15–25. Retrieved from https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/7458