Investigating the Effective Parameters on Modeling the Hydraulic Conductivity Variations in Fractured Environment Using Distinct Elements Method

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Alizadeh Kaklar Sajjad; DOULATI ARDEJANI FARAMARZ

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF MINING ENGINEERING (IRJME) Year:2019 | Volume:13 | Issue:41 Page(s): 27-44

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Title

Investigating the Effective Parameters on Modeling the Hydraulic Conductivity Variations in Fractured Environment Using Distinct Elements Method

Author(s)

Alizadeh Kaklar Sajjad | DOULATI ARDEJANI FARAMARZ | Issue Writer Certificate

Keywords

Discrete Fracture NetworkQ1

CavernQ1

Finite DifferenceQ1

Hydraulic ConductivityQ1

Pumped storage power plantQ1

Roudbar Lorestan damQ1

Abstract

One of the most important and challenging issues regarding underground spaces such as tunnels and Caverns, is to estimate the amount of water entering to an underground space. A real estimation of the leakage is a very influential factor in the success of a project performance. Hydraulic Conductivity can play a significant role on subsurface water flow. Lugeon and Lofran tests are routinely used to estimate hydraulic conductivities. In this study, distinct fractured network was employed to evaluate Hydraulic Conductivity. For this purpose, preprocessing was initially carried out on the data collected on the joints. These joints were divided into three groups of sub-horizontal, sub-vertical and bedrock joints. Afterwards, Poisson, exponential and logarithmic distributions were considered. A proper distribution for the joints was obtained using the exponential distribution with the highest agreement. Taking into account the initial conditions of the model, the DFN of the joints was created by 3DEC software. In the process of solving the problem, the DFN was considered with different eliminating filters, among which a 6-meter filter was selected as the appropriate one for removing the small fractures. DFN was validated using Watson & Williams test results and P-value test. The construction of the Representative Elementary Volume model was performed by using the 7 meters blocks. It is the optimum dimension describing the area, properly. Finally, results were verified with the data obtained from the Lugeon test; showing a relatively high correlation.

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APA: Copy

Alizadeh Kaklar, Sajjad, & DOULATI ARDEJANI, FARAMARZ. (2019). Investigating the Effective Parameters on Modeling the Hydraulic Conductivity Variations in Fractured Environment Using Distinct Elements Method. IRANIAN JOURNAL OF MINING ENGINEERING (IRJME), 13(41 ), 27-44. SID. https://sid.ir/paper/117057/en

Vancouver: Copy

Alizadeh Kaklar Sajjad, DOULATI ARDEJANI FARAMARZ. Investigating the Effective Parameters on Modeling the Hydraulic Conductivity Variations in Fractured Environment Using Distinct Elements Method. IRANIAN JOURNAL OF MINING ENGINEERING (IRJME)[Internet]. 2019;13(41 ):27-44. Available from: https://sid.ir/paper/117057/en

IEEE: Copy

Sajjad Alizadeh Kaklar, and FARAMARZ DOULATI ARDEJANI, “Investigating the Effective Parameters on Modeling the Hydraulic Conductivity Variations in Fractured Environment Using Distinct Elements Method,” IRANIAN JOURNAL OF MINING ENGINEERING (IRJME), vol. 13, no. 41 , pp. 27–44, 2019, [Online]. Available: https://sid.ir/paper/117057/en

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