An optimal method to design reinforced concrete lining of pressure tunnels | ||
| Journal of Mining and Environment | ||
| مقاله 5، دوره 9، شماره 4، دی 2018، صفحه 829-837 اصل مقاله (1.6 M) | ||
| نوع مقاله: Research Note | ||
| شناسه دیجیتال (DOI): 10.22044/jme.2018.6776.1500 | ||
| نویسندگان | ||
| E. Dadashi1؛ A. Noorzad* 2؛ K. Shahriar3؛ K. Goshtasbi4 | ||
| 1Department of Mining Engineering, Science, and Research Branch, Islamic Azad University, Tehran, Iran | ||
| 2Faculty of Civil, Water & Environmental Engineering, Shahid Beheshti University, Tehran, Iran | ||
| 3Department of Mining and Metallurgy Engineering, Amir Kabir University of Technology, Tehran, Iran | ||
| 4Department of Mining Engineering, Tarbiat Modares University, Tehran, Iran | ||
| چکیده | ||
| The utilization of the lining type in pressure tunnels is highly dependent on the geological and hydraulic conditions. There are two types of lining, namely concrete and steel lining but steel lining is one of the most expensive arrangements. To decrease the length of steel lining in these tunnels, the concrete lining, which prevents water seepage from the surrounding rock mass, is the appropriate alternative. In this work, a special attention is devoted to limit water losses in the concrete lining of pressure tunnel based on the critical reinforcing ratio in concrete lining. In order to evaluate the effect of internal water pressure on the permeability coefficient variation of the concrete lining and the surrounding rock mass, some simulations of reinforced concrete lining is implemented in the ABAQUS finite element software based on the coupled pore fluid-stress analysis. The results obtained indicate that although the critical reinforcing ratio has an important role in capturing the seepage flows and water losses, it is not sufficient to rely only on this parameter. However, among the various influential factors involved, a suitable arrangement of the reinforcement in the concrete lining should also be considered. | ||
| کلیدواژهها | ||
| Pressure Tunnel؛ Reinforced Concrete Lining؛ Finite Element Model؛ ABAQUS Software؛ Seepage Control | ||
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آمار تعداد مشاهده مقاله: 986 تعداد دریافت فایل اصل مقاله: 2,161 |
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