WebIn our example, the two Lam'e constants are both 40 MPa, the Poisson's ratio is 0.3, the Biot-Willis coefficient is 1.0, the porosity is 0.375, the hydraulic conductivity is $1\times 10^{-5} $ the compressibilities of the pore water and solid grain are $4.4 \times 10^{-10} $ and $2.8\times 10^{-10} $ respectively. Webrather than Biot’s effective stress σ ij= σ el+ B p δ . (2.2) Here B el is elastic Biot coefficient, pis the fluid pressure and σ ijare components of the (total) stress tensor. The standard sign convention for the stresses and fluid pressure is used here: the stresses are positive when they are tensile while the
arXiv:1607.04274v1 [physics.geo-ph] 14 Jul 2016
WebFeb 25, 2024 · 1), which is based on the principle of effective stresses (also named theory of poroelasticity, Biot 1955, Biot and Willis 1957): $$\sigma_{ij} ' = \sigma_{ij} - \alpha_{ij} p_{p}$$ (1) where Biot’s tensor α ij describes the influence of fluid pressure on the anisotropic elastic solid matrix. It is the key parameter of poroelastic theory. ... Webfrom scipy.special import * import matplotlib.pyplot as plt import numpy as np ## Definition der Parameter für Druckgleichung nach Rudnicki (1986) ## q = 6.0/1000 #Fluidmenge pro Fläche und Zeit [m³/s] rhof = 1000 #Dichte Flüssigkeit [kg/m³] lameu = 11.2*10**9 #Lamé-Parameter, undrained [Pa] lame = 8.4*10**9 #Lamé-Parameter, drained [Pa ... fl studio download kostenlos
固液双相作用下多孔自润滑表面渗流行为分析_参考网
Web物理探査. Elastic coefficients in the Biot theory (Biot coefficients) for fluid-saturated porous media are expressed by conventional elastic coefficients and porosity. Practical … WebA proper correlation of the Biot-Willis coefficient controlling the bulk volumetric strain is developed using the data available from various sources in a manner to meet the required endpoint ... WebJul 10, 2024 · The modeling results show that the variability of Biot coefficient and elastic moduli should be included in the geomechanical modeling to accurately predict the poroelastic responses of injection (i.e., stress changes and surface uplift). Using a constant stress-independent Biot coefficient elastic moduli, which is the assumption in poroelastic ... fl studio download mod