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Geomechanical properties of the ophiolites (Çankiri/Turkey) and alteration degree of diabase
Abstract The alteration state of magmatic rocks is significant in the organization of stability, excavation methods, bearing capacity and engineering applications in civil engineering works for dam construction and basement rock analysis. For this reason, alteration needs to be defined by reliable, controllable and easily applicable methods, and expressed in numerical values. As an example the geomechanical properties of Çankiri serpentinite, gabbro, and diabase have been investigated during a study for determining a dam axis location, and P-wave velocity variation, uniaxial strength, water absorption ratio of diabase determined, all of which were later evaluated under the “unified alteration index” concept, described by the author. Mathematical equations were outlined by regression analysis of the results. Thus, an approach could be achieved to various geomechanical properties and alteration states of the rock, starting with known properties. A relationship such as: Edd=2.942–0.834 $ Log_{e} $ Kc (×$ 10^{5} $ kg/$ cm^{2} $) was finally established between the dry dynamic elasticity modulus (Edd) and unified alteration index (Kc). Alteration degree can be calculated at a rate as high as 95 % significance, by using the above equation with easily obtainable dynamic elasticity modulus values.
Geomechanical properties of the ophiolites (Çankiri/Turkey) and alteration degree of diabase
Abstract The alteration state of magmatic rocks is significant in the organization of stability, excavation methods, bearing capacity and engineering applications in civil engineering works for dam construction and basement rock analysis. For this reason, alteration needs to be defined by reliable, controllable and easily applicable methods, and expressed in numerical values. As an example the geomechanical properties of Çankiri serpentinite, gabbro, and diabase have been investigated during a study for determining a dam axis location, and P-wave velocity variation, uniaxial strength, water absorption ratio of diabase determined, all of which were later evaluated under the “unified alteration index” concept, described by the author. Mathematical equations were outlined by regression analysis of the results. Thus, an approach could be achieved to various geomechanical properties and alteration states of the rock, starting with known properties. A relationship such as: Edd=2.942–0.834 $ Log_{e} $ Kc (×$ 10^{5} $ kg/$ cm^{2} $) was finally established between the dry dynamic elasticity modulus (Edd) and unified alteration index (Kc). Alteration degree can be calculated at a rate as high as 95 % significance, by using the above equation with easily obtainable dynamic elasticity modulus values.
Geomechanical properties of the ophiolites (Çankiri/Turkey) and alteration degree of diabase
Kiliç, Recep (author)
1995
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
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