Comparison Between Equivalent Continuum and Discrete Crack Models of Transient Radon Transport at the Soil–Building Foundation Crack Interface Using TOUGH2/EOS7Rn

Saâdi, Zakaria

doi:10.1007/s11242-017-0994-x

Cited by 2 publications

(1 citation statement)

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“…Several known models are based on the hypothesis of the significant (and even dominant) role of the convective mechanism of radon transport over diffusion. For example, the total flux term in the mass balance equations in the works (Saaˆdi, 2018;Saaˆdi and Marie, 2017) is assumed to be a result from both advection and diffusion, and is calculated according to Darcy's and Fick's laws. However, it was shown in Minkin's (2002) and Minkin and Shapovalov's (2008) works that, as follows from the analysis of experimental and theoretical data, in many cases this hypothesis is not confirmed; there are many uncertainties and contradictions between the model of radon transport due to pressure drop and experimentally established facts.…”

Section: Introductionmentioning

confidence: 99%

Resistance of building foundation to radon penetration

Gulabyants

Livshits

Kalaydo

et al. 2019

Journal of Building Physics

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Two-dimensional model of the steady-state diffusion radon transport from the soil to the ground floor of the building is developed. Radon concentration distributions in the soil and the living space are calculated at different foundation geometries. The model considers radon entry from enclosing structures, outside air, and diffusion from the soil. The radon field under the building is described. The quantitative criteria for the resistance of the building foundation to radon penetration from the soil are defined. It is found that the resistance of the ground slab to radon penetration and radon concentration in the plane of the soil structure contact have a decisive influence on indoor radon, and that the initial distribution of radon concentration in the soil changes significantly after the building erection. These changes depend on the radon potential in the soil, its radon permeability, resistance of the floor structure to radon penetration, and building geometry.

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Section: Introductionmentioning

confidence: 99%