...Jinfeng Bi; Hong Jiang Underwater tunnels are often subject to groundwater infiltration, which can pose risks both to the tunnel's safety and the groundwater environment. Analytical solutions are commonly used to estimate the rate of water infiltration in tunnels. However, there is a lack...

.... The evaluation of the groundwater regime, and the associated evolution of pore water pressures, is therefore key to assessing the safety of slopes against sliding by means of, for example, limit equilibrium or finite-element methods (Ye et al., 2005 ; Li et al., 2016 ; Le et al...

... settlement. Based on the numerical simulations of D-wall deformation and groundwater change, in this case, the ground settlement within the area extending two times the depth of unloading (two times the depth of dewatering, 2H_d) from the excavation was found to be caused by both...

... wall designs through trade-offs among various parameters such as target diameter, column spacing and number of rows. 07 10 2017 15 06 2018 © 2018 Thomas Telford Ltd 2018 cut-off walls and barriers groundwater grouting seepage statistical analysis Cut-off walls...

... equation (1) , the exact total form factor for case 1 is easily determined to be 5 Φ = 2 K / K ′ 17 08 2017 13 03 2018 © 2018 Thomas Telford Ltd 2018 embankments finite-element modelling groundwater seepage The analysis of seepage beneath water...

... discussed below the effect of gravel permeability was investigated using values of 0·1, 0·01 and 0·001 m/s. Groundwater control is frequently needed at building sites in Christchurch and considerable volumes of water are pumped from wells. This indicates that parts, at least, of the gravel have...

... at constant s are named ‘main isosuction swelling curves’ and ‘main isosuction compression curves’, respectively. Inspection of equation (4b) indicates that constitutive relations groundwater partial saturation pore pressures seepage suction Understanding water retention...

... compressibilities of the mixture, the pure water and the air, respectively, are groundwater laboratory tests numerical modelling permeability Measurement of permeability characteristics of low-permeability materials including rocks, clays and clay shales forms an important branch of geotechnical...

... ( 6 ) centrifuge modelling clays groundwater landfills permeability Low-permeability soil barriers are often used in geotechnical works for controlling leakage flow and contaminant migration. There are several methods of measuring the permeability of soils including: the British...

... and results are plotted. earth pressure failure finite-element modelling groundwater numerical modelling sheet piles and cofferdams The stress field is computed by the method of stress characteristics. The method of stress characteristics (or the slip lines method) is a standard method...

.... groundwater in situ testing permeability, water flow where k is the isotropic hydraulic conductivity, and h is the hydraulic head used in the calculations. Table 1 and Fig. 3 show the intake factors obtained for L = 2–32 cm and D = 3–6 cm. In Fig. 3...

...-dependent function describing the pore pressure variations at the boundary with respect to the steady-state value. Moreover, it is assumed that at a distance H from the groundwater level (Fig. 1) there is an impervious surface: that is, (6) ∂ u ∂ z = 0   at   z = H...

... bidimensionnelles pour la validation du système. groundwater liquefaction numerical modelling pore pressures The discrete-element method (DEM) (Cundall & Strack, 1979) is widely used in geo-engineering problems to simulate the mechanical response of granular materials or geo-materials...

...J.J. NADER The present analysis takes into account the acceleration term in the differential equation of motion to obtain exact dynamic solutions concerning the groundwater flow towards a well in a confined aquifer. The results show that the error contained in the traditional quasi-static solution...

... relations deformation groundwater permeability sands shear strength stress analysis water flow Methane hydrate, which is one form of gas hydrate, is a metastable solid material that consists of methane (CH_{4) and water (H2O) molecules. As illustrated in Fig. 1 , water}...

...M.A. BEVAN; W. POWRIE; T.O.L. ROBERTS Large-scale anisotropy and inhomogeneities resulting from the presence of fissures, fractures and high-permeability zones can have a major impact on local groundwater flows, and affect significantly the performance of a construction dewatering system...

... simples méthodes d'évaluation des pressions d'eau interstitielles sur les tunnels existants. Il s'agit de méthodes indirectes et non destructives, représentant une pratique à la fois pratique et simple d'évaluer la pression interstitielle résiduelle sur le revêtement. groundwater numerical...

...J. S. Dickinson; N. Buik; M. C. Matthews; A. Snijders Aquifer thermal energy storage (ATES) systems provide a method of improving the performance of more commonly installed mono-direction groundwater heating and cooling systems. Rather than using the prevailing temperature of the abstracted...

...M. Preene; W. Powrie Ground energy systems use the ground and groundwater beneath a site as a heat source or sink to reduce energy costs and improve the environmental performance of buildings. The design and performance of the ground element of these systems (boreholes and ground loops...

... [ K ( 1 ) ] ) { C } n – 1     + Δ t 2 ( { Q } n + { Q } n – 1 ) 04 08 2007 21 02 2008 © 2008 Thomas Telford Ltd 2008 contaminated material environmental engineering groundwater numerical...