An Analytical Investigation on the Estimation of Water Inflow into a Circular Tunnel Based On-site Data
Sign Up to like & getrecommendations! Published in 2020 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-020-02114-2
Abstract: Pre-excavation grouting (PEG) was developed in early 1980s to reduce water inflow in hard rock tunnelling. Over the years, positive experiences have been made with this method, particularly during the construction of subsea tunnels and… read more here.
Keywords: estimation; water; water inflow; site data ... See more keywords
Water inflow forecasting for tunnel considering nonlinear variation of permeability coefficient
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Central South University"
DOI: 10.1007/s11771-017-3566-x
Abstract: To assess the water inflow which is more suitable to the actual conditions of tunnel, an empirical correlation about the permeability coefficient changing with depth is introduced. Supposing that the surrounding rock is heterogeneous isotropy,… read more here.
Keywords: water; water inflow; tunnel; permeability coefficient ... See more keywords
Investigation on the causes of abnormal increase of water inflow in underground water-sealed storage system
Sign Up to like & getrecommendations! Published in 2019 at "Tunnelling and Underground Space Technology"
DOI: 10.1016/j.tust.2019.02.013
Abstract: Abstract Water inflow is a crucial factor in underground water-sealed storage for both safety and operation costs. Water inflow control measurements have mainly focused on the grouting of the cavern regardless of considering the influence… read more here.
Keywords: water inflow; abnormal increase; access tunnel; water ... See more keywords
A Sequential Structure for Water Inflow Forecasting in Coal Mines Integrating Feature Selection and Multi-Objective Optimization
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3028959
Abstract: To construct an accurate and stable approach for water inflow forecasting, a series of advanced and effective techniques, such as variational mode decomposition (VMD), outlier robust extreme learning machine (ORELM) and multi-objective grey wolf optimizer… read more here.
Keywords: sequential structure; structure water; multi objective; water inflow ... See more keywords
Analysis of the impact of groundwater level decrease caused by drainage on tunnel water inflow
Sign Up to like & getrecommendations! Published in 2023 at "Quarterly Journal of Engineering Geology and Hydrogeology"
DOI: 10.1144/qjegh2023-019
Abstract: Affected by the excavation, the phenomenon of groundwater level drop around mountain tunnels is widespread, resulting in poor accuracy of the existing water inflow calculation formula derived when the groundwater level is fixed. Based on… read more here.
Keywords: groundwater level; tunnel water; water; water inflow ... See more keywords
Analytical Solution for the Steady-State Karst Water Inflow into a Tunnel
Sign Up to like & getrecommendations! Published in 2019 at "Geofluids"
DOI: 10.1155/2019/1756856
Abstract: An analytical solution for the karst water inflow into a lined tunnel in an infinite plane is derived based on conformal mapping. The new solution considers the center distance between the tunnel and the cavern,… read more here.
Keywords: water inflow; tunnel; karst water; solution ... See more keywords
Impact of Long-Term Water Inflow Uncertainty on Wholesale Electricity Prices in Markets with High Shares of Renewable Energies and Storages
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DOI: 10.3390/en13092347
Abstract: Renewable energy shares in electricity markets are increasing and therefore also require an increase in flexibility options. Conventional electricity price modelling with optimisation models in thermally dominated markets is not appropriate in markets with high… read more here.
Keywords: uncertainty; water inflow; renewable energies; electricity ... See more keywords