A combined use of Archie and van Genuchten models for predicting hydraulic conductivity of unsaturated pyroclastic soils

Maio, Rosa Di; Piegari, E.; Todero, Giovanna; Fabbrocino, Silvia

doi:10.1016/j.jappgeo.2014.12.002

Cited by 8 publications

(3 citation statements)

References 47 publications

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“…; Niwas and Celik ; Di Maio et al . ; Farzamian, Monteiro Santos and Khalil ; Choo et al . ), but in general, they were used to evaluate shallow aquifers or the vadose zone.…”

Section: Discussionmentioning

confidence: 99%

“…The procedure proposed makes use of two empirical laws between FF-K and TR-T. There are more complex petrophysical models accepted (Soupios et al 2007;Niwas and Celik 2012;Di Maio et al 2015;Farzamian, Monteiro Santos and Khalil 2015;Choo et al 2016), but in general, they were used to evaluate shallow aquifers or the vadose zone. However, for deeper aquifers (50-100m) it is difficult and expensive to acquire basic data for these models, such as granulometric distribution, type of packaging and even clay content.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Estimation of hydraulic parameters using electrical resistivity tomography (ERT) and empirical laws in a semi‐confined aquifer

Perdomo

Kruse

Ainchil

2018

Near Surface Geophysics

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The estimation of hydraulic parameters is critical for the rational use of water resources and the development of reliable hydrogeological models. However, the cost of such estimation can be very high and the data are limited to the area near the pumping well. For this reason, complementary methods for estimating hydraulic conductivity and transmissivity have become increasingly important in recent years, such as the adjustment of empirical relationships between geoelectrical and hydraulic parameters. In this paper, two linear relationships were tested, combining resistivity measurements from well logging profiles and hydraulic conductivity values from pumping test data, in a semi‐confined fluvial aquifer in the province of Buenos Aires, Argentina. Furthermore, these relationships were used to obtain two‐dimensional (2D) hydraulic conductivity and transmissivity sections from electrical resistivity tomography using a high‐definition electrode array. Predicted values were compared with traditional pumping test in a near well showing very good agreement with both methods. Results showed that it would be possible to quantify the 2D variation of hydraulic parameters in aquifers and to identify high‐ or low‐productivity areas. By knowing this information in advance, it is possible to reduce the number of failures or unexpected results when drilling a well. These 2D sections also provide additional information about hydraulic parameters and their lateral variability, and can improve hydrogeological models without drilling new wells.

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“…; Niwas and Celik ; Di Maio et al . ; Farzamian, Monteiro Santos and Khalil ; Choo et al . ), but in general, they were used to evaluate shallow aquifers or the vadose zone.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Estimation of hydraulic parameters using electrical resistivity tomography (ERT) and empirical laws in a semi‐confined aquifer

Perdomo

Kruse

Ainchil

2018

Near Surface Geophysics

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show abstract

“…The simplest functions are linear or linearisable functions (exponential and logarithmic) [15][16][17][18], which are often used owing to the ease by which their coefficients are obtained, and the use of polynomial functions is also common [19,20]. Nevertheless, it must be noted that a possible physical meaning is difficult to assign to polynomials with an order higher than 2, except for those that correspond to the powers of binomials.…”

Section: Criteria For the Development Of Empirical Lawsmentioning

confidence: 99%

New Empirical Laws in Geosciences: A Successful Proposal

Díaz-Curiel,

Biosca,

Arévalo-Lomas

et al. 2023

Applied Sciences

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The importance of empirical versus theoretical laws is a controversial issue in many scientific fields, the latter being generally accepted and the relevance of which is not discussed here. As in other areas, there are well-known theoretical and empirical formulas in geosciences that do not adequately represent the reality of a given phenomenon. Quantitative comparison of geophysical and petrophysical results with data from the other multiple fields that comprise the geosciences compels a high exigency to avoid discontinuities in existing relationships. However, the proposal of new empirical laws that more accurately reflect a given phenomenon is often considered insufficient to contradict existing formulas. The aim of this work is to defend the development of new empirical laws by showing that they constitute a true model of analysed behaviour if certain criteria are followed. This defence is especially needed when non-linearisable functions are required to fit the empirical data. To achieve this aim, this study shows the established algebraic function as a function of a single variable, whose main advantage is its application to phenomena of a geological nature that show two differentiated behaviours as the variable x is increased. A series of five examples of different phenomena related to geosciences is selected to demonstrate the level of accuracy that new empirical laws can reach in contrast to the widely accepted historical relationships.

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Geotechnical, Geoelectric and Tracing Methods for Earth/Rock-Fill Dam and Embankment Leakage Investigation

Nan,

Ren,

Zhang

et al. 2023

Surv Geophys

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A combined use of Archie and van Genuchten models for predicting hydraulic conductivity of unsaturated pyroclastic soils

Cited by 8 publications

References 47 publications

Estimation of hydraulic parameters using electrical resistivity tomography (ERT) and empirical laws in a semi‐confined aquifer

Estimation of hydraulic parameters using electrical resistivity tomography (ERT) and empirical laws in a semi‐confined aquifer

New Empirical Laws in Geosciences: A Successful Proposal

Geotechnical, Geoelectric and Tracing Methods for Earth/Rock-Fill Dam and Embankment Leakage Investigation

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