Hydraulic conductivity characterization of a karst recharge area using water injection tests and electrical resistivity logging

Angulo, Bárbara; Morales, Tomás; Uriarte, Jesús A.; Antigüedad, Iñaki

doi:10.1016/j.enggeo.2010.10.008

Cited by 31 publications

(8 citation statements)

References 16 publications

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“…This borehole was utilized to obtain quantitative information on rock mass permeabilities by conducting six constant‐pressure injection tests. To minimize the possible effects of hydraulic fracking, the injection tests were carried out in 3‐m sections that were isolated between expandable double packers, according to the low‐pressure test (LPT) methodology (Angulo et al, ; Sánchez et al, ). Thus, the sequence of pressure levels consisted of 0–1–2–3–5–3–2–1 gauge pressures in bars, and the duration of each pressure step was 5 min, after stabilization.…”

Section: Methodsmentioning

confidence: 99%

“…Thus, direct measurements of the permeabilities at different ground levels were obtained (Ford & Williams, ; Nappi, Esposito, Piscopo, & Rega, ; Price, Robertson, & Foster, ; Sánchez, Foyo, & Tomillo, ). In Punta Begoña, to limit the development of hydraulic fracking processes in the fractured medium, the injection tests were carried out in accordance with the low pressure test (LPT) methodology (Angulo, Morales, Uriarte, & Antigüedad, ; Sánchez et al, ). In any case, this is an invasive technique of limited use in areas such as that studied here.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of complex groundwater flows in the environment of singular buildings by combining hydrogeological and non‐destructive geophysical (ground‐penetrating radar) techniques: Punta Begoña Galleries (Getxo, Spain)

Uriarte

Mollá

Aranburu

et al. 2020

Hydrological Processes

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Locating and quantifying groundwater flow in many built-up areas are a priority with regard to its complete restoration. In this work, a hydrogeological survey of the surroundings of the Punta Begoña Galleries (Getxo, Bizkaia), built on a coastal cliff, was completed by using ground penetrating radar (GPR) testing. Thus, the preliminary characterization of soils and rocks in accessible areas of the cliff was first improved by hydrogeological information gathered from a single survey borehole, including permeability measurements by low pressure injection tests (LPTs) and continuous water level monitoring. As a complementary method, the non-destructive GPR technique was performed during both dry and wet hydrological periods and in tandem with the injection tests, providing more complete spatial and temporal images of water flows. Specifically, GPR allows mapping of flow paths in soils and assessing the continuity of fractures in rock masses. Altogether, this complementary approach provides greater knowledge of complex underground flow dynamics in built environments, thus making it easier to make decisions for their management. K E Y W O R D Scomplex water flow, ground penetrating radar, heritage, hydrogeological survey

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterization of complex groundwater flows in the environment of singular buildings by combining hydrogeological and non‐destructive geophysical (ground‐penetrating radar) techniques: Punta Begoña Galleries (Getxo, Spain)

Uriarte

Mollá

Aranburu

et al. 2020

Hydrological Processes

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“…He et al (2011) proposed a new approach to determine the equivalent permeability tensor of fractured rock masses by combining the geological method, the packer test method, and ANN [10]. Ren et al (2016) applied the flexible tolerance inversion method to obtain the seepage parameters of rock masses and faults in the dam foundation of the Maerdang dam [23].Existing research is usually based on the field water pressure test to calculate the permeability parameters of the rock masses near the test area, but its determination object is usually hard or semi-hard rock mass [24,25]. Scholars have also adopted the stable seepage theory to assess the seepage parameters of the rock masses by an inversion method on the basis of the groundwater level monitoring data.…”

mentioning

confidence: 99%

“…Existing research is usually based on the field water pressure test to calculate the permeability parameters of the rock masses near the test area, but its determination object is usually hard or semi-hard rock mass [24,25]. Scholars have also adopted the stable seepage theory to assess the seepage parameters of the rock masses by an inversion method on the basis of the groundwater level monitoring data.…”

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confidence: 99%

A New Approach to Permeability Inversion of Fractured Rock Masses and Its Engineering Application

Gan

Chen

Shen

2020

Water

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This paper presents a new seepage inversion technique to predict the permeability coefficient of the rock mass with developed fracture or fault. With the measured data of flow and water head of boreholes, the permeability coefficient of the rock masses near the boreholes are obtained by inverse calculation on the basis of unsteady seepage tests. Then, a flexible tolerance method is proposed to invert the permeability coefficient of rock masses in different zones of the reservoir area. This comprehensive inversion analysis method is applied in one actual project of the water supply reservoir. The equivalent permeability coefficient of the rock masses in the range of 0 m to 16.0 m below the road surface near the dam axis on the left bank of the mountain is 1.12 × 10 −3 cm/s. The root mean squared error and coefficient of determination of the measured and calculated values are 1.33 × 10 −4 m 3 /s and 0.9976 m 3 /s, respectively. The rock masses in the reservoir site area have high permeability. The groundwater level in the junction area and the mountains on both sides of Shangmo reservoir is low, and the hydraulic gradient is small. The maximum error between the calculated value of the groundwater level and the measured values is −0.41 m, and the relative error is −4.36%. The recommended anti-seepage scheme can effectively solve the problem of large leakage in the reservoir area. The results show that the innovative approach is appropriate for the seepage analysis of the field with the fractured rock masses and more meaningful from an engineering point of view.Water 2020, 12, 734 2 of 17 Currently, the most direct method to determine the permeability coefficient of fractured rock mass is the field measurement method based on statistics and cubic law [10,12]. This method is simple, but it is difficult to obtain representative fracture parameters by outcrop measurement or borehole measurement. The permeability parameters of the aquifer are obtained by an analytical or a semi-analytical method on the basis of the water pressure test [13,14]. The cross-hole tests and isotopic tracer methods are developed to determine the permeability tensor of the rock masses [15][16][17][18]. This permeability tensor can only represent the seepage characteristics of medium near the test area. In recent decades, the inversion methods, such as the Pulse Spectrum method, the Numerical Optimization method, the Artificial Neural Network method (ANN), and the Genetic Algorithm (GA), are widely used in the seepage parameters inversion of fractured rock masses [19][20][21][22]. He et al. (2011) proposed a new approach to determine the equivalent permeability tensor of fractured rock masses by combining the geological method, the packer test method, and ANN [10]. Ren et al. (2016) applied the flexible tolerance inversion method to obtain the seepage parameters of rock masses and faults in the dam foundation of the Maerdang dam [23].Existing research is usually based on the field water pressure test to calculate the permeability parameters of th...

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“…In addition, groundwater inrushes also pollute the environment [2,[14][15]. Therefore, field and laboratory investigations that predict and examine water inrush [16][17][18], and the effects of groundwater inrush on the hydraulic and mechanical properties of rock masses [17,[19][20][21], have been extensively carried out.…”

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confidence: 99%

Variations in Hydraulic Properties of Sendimentary Rocks Induced by Fluid Injection: The Effect of Water Pressure

Huang¹,

Li²,

Li³

et al. 2018

Pol. J. Environ. Stud.

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Currently, China is the world's largest coal producer [1]. Although China has restricted its coal output in recent years, the economy of China will still be highly dependent on coal extraction and production in the foreseeable future [2]. However, groundwater inrush into the mine working face is a common occurrence during the extraction of this important resource [2-5], which is one of the greatest challenges in underground engineering [5-13]. Statistics for the past 20 years in China show that

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Hydraulic conductivity characterization of a karst recharge area using water injection tests and electrical resistivity logging

Cited by 31 publications

References 16 publications

Characterization of complex groundwater flows in the environment of singular buildings by combining hydrogeological and non‐destructive geophysical (ground‐penetrating radar) techniques: Punta Begoña Galleries (Getxo, Spain)

Characterization of complex groundwater flows in the environment of singular buildings by combining hydrogeological and non‐destructive geophysical (ground‐penetrating radar) techniques: Punta Begoña Galleries (Getxo, Spain)

A New Approach to Permeability Inversion of Fractured Rock Masses and Its Engineering Application

Variations in Hydraulic Properties of Sendimentary Rocks Induced by Fluid Injection: The Effect of Water Pressure

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