Volume 4, Issue 2, June 2018, Page: 23-27
Influence of Geomechanical and Hydraulic Parameters of the Fractured Rock on the Evolution of Underground Karst Cavities in Cheria Area, NE Algerea
Chamekh Khemissi, Laboratory of Water and Environment, Department of Geology, Chiekh Larbi Tebessi University, Tebessa, Algeria
Djemmal Samir, Mobilization and Management Laboratory of Water Resources, Department of Geology, El Hadj Lakhdar University, Batna, Algeria
Boukhalfa Adel, Laboratory of Physical Properties of Materials, Department of Metallurgy, Badji Mokhtar University, Annaba, Algeria
Baali Fethi, Laboratory of Water and Environment, Department of Geology, Chiekh Larbi Tebessi University, Tebessa, Algeria
Received: Jan. 13, 2018;       Accepted: Jun. 12, 2018;       Published: Jul. 24, 2018
DOI: 10.11648/j.ajwse.20180402.12      View  478      Downloads  30
Abstract
The main goal of this study is to analyze the surface part of the karst and some underground characteristics of Eocene karst system. The Karst cavities are widespread in the Eocene forming the upper formation under the Quaternary cover in the Cheria syncline. Therefore, the karstfied zone requires new methods for estimating average depth of the karts cavities from structural, geometrical, and mechanical properties of fractured rock. In that way, statistical methods is very efficient for describing in detail the shallow part of karst cavities, when Eocene limestone outcrops at the surface in the center and northern of the basin. A stochastic analysis is carried out to evaluate the influence of correlations between relevant distributions on the simulated RMR values, also to simulate the cavity depth. The model is also used in Monte Carlo simulations. The statistical analysis showed that Rock Mass Rating (RMR) depends on the hydraulically and geomechancal parameters. Naturally it is always possible to simulate a cavity depth (PKR) by several hydraulically and geometrical parameters of fractures (uniaxial compressive strength; RC), Rock Quality Designation (RQD), Spacing fracture (EJ), inflow per 10 tunnel length (D10m.L), friction cording of the angle of the rock mass (CD-I.j), layer depth (Pc), average aperture to each group of the fracture (di), average fracture frequency to each group of the fracture (fi), fracture depth (dfi)), especially in the case of k non real fracture geometry. The study of the relations between geomechanical fractured rock and fracture geometry, we can simulate any cavity depth (PRK) in Chera syncline.
Keywords
Fractures, Karst, Cavities, Simulation, Cheria, Algeria
To cite this article
Chamekh Khemissi, Djemmal Samir, Boukhalfa Adel, Baali Fethi, Influence of Geomechanical and Hydraulic Parameters of the Fractured Rock on the Evolution of Underground Karst Cavities in Cheria Area, NE Algerea, American Journal of Water Science and Engineering. Vol. 4, No. 2, 2018, pp. 23-27. doi: 10.11648/j.ajwse.20180402.12
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Reference
[1]
Baali, F., Fehdi, C., Rouabhia, A., Mouici, R., Carlier, E., 2015 “Hydrochemistry and isotopic exploration for a karstic aquifer in a semi-arid region: case of Cheria Plain, Eastern Algeria.” Carbonates Evaporites (2015) 30:99–107. DOI 10. 1007/s13146-014-0214-5.
[2]
Chamekh, K., Baali, F., Yahiaoui, A., Kerboub, D., 2017 “Hydrogeological setting of a karstic aquifer in a semi-arid region: a case from Cheria plain, Eastern Algeria.” Carbonates Evaporites DOI 10. 1007/s13146-017-0400-3.
[3]
Renshaw, C. E. 1995. “On the relationship between mechanical and hydraulic apertures in rough‐walled fractures. Journal of Geophysical Research.” 100: DOI: 10. 1029/95JB02159. ISSN: 0148-0227.
[4]
Benhammadi, H., Chaffai, H. 2017 “Climate and human impact on the Karstic environment in the semi-arid zone of the Chéria plateau (Northeast of Algeria)”. ISSN: 2220-6663 (Print) 2222-3045 (Online). Vol. 11, No. 4, p. 146-151.
[5]
Chamekh, K. 2014. “Relation fracturation-morphologie implications hydrogéologiques. Exemple des calcaires fissures de la région de Chéria (NE Algérien).” Larhyss Journal, ISSN 1112-3680, n 18, pp. 19-30.
[6]
Djemmal, S., Menani M. R., Chamekh, K., Baali, F. 2017. “The contribution of fracturations in the emergence of the thermal springs in Setif city, Eastern Algeria.” Carbonates Evaporites DOI 10. 1007/s13146-017-0375-0.
[7]
Chaffai, H., and al. 2003. “Evaluation des ressources en eaux de la plaine de Chéria (NE Algérie). Synthèse et analyse des données.” Doctorat 3ème cycle, USTL, Montpellier II, 245p.
[8]
Kiraly, L. 1971. “Groundwater flow in heterogeneous, anisotropic fractured media: a simple tow-dimensional.” Electric analog. Geological Institute, Neuchtatel, Switzerland. Journal of Hydrolog 12, pp255-261.
[9]
Ladiera. 1981. “Rock Fractures and Fluid Flow: Contemporary Understanding and Applications.” Washington, DC: The National Academies Press.
[10]
Bieniawski, Z. T. 1973. “Engineering classification of jointed rock masses. Transaction South African Institute Cicil Engineers, 15, 335-343.”
[11]
Price, Cosgrove. 1990. “Analysis of Geological.” University Press - Science - 502 page.
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