Dynamic evolution of the fractures and hydraulic pressures in water-resistant strata between karst cavity and tunnel based on discrete element method
- 10.2991/ifeesm-17.2018.2How to use a DOI?
- karst tunnel; large-scale karst cavity; water-inrush; discrete element method
Based on the discrete element software (UDEC), the variation laws of the seepage field and displacement field in water-resistant strata between karst cavity with high-pressuried water and tunnel are simulated and analyzed in thin limestone strata. The results show that under the same karst water pressure, when the thickness of water-resistant strata is 2m, the water-resistant strata is in the whole collapse tendency and the water-inrush channels are formed in a short time, but when the thickness of water-resistant strata is 4m, the rock mass in the 1m range above the tunnel vault is slumped to form a collapse arch, which is less prone to water-inrush.
- © 2018, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Zhenyu He AU - Jiaqi Guo AU - Fan Chen PY - 2018/02 DA - 2018/02 TI - Dynamic evolution of the fractures and hydraulic pressures in water-resistant strata between karst cavity and tunnel based on discrete element method BT - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017) PB - Atlantis Press SP - 7 EP - 10 SN - 2352-5401 UR - https://doi.org/10.2991/ifeesm-17.2018.2 DO - 10.2991/ifeesm-17.2018.2 ID - He2018/02 ER -