Assessment of bearing capacity and permeability of foundation rocks at the Gumustas Waste Dam Site (NE Turkey) using empirical and numerical analysis

Alemdağ, Selçuk

doi:10.1007/s12517-013-1236-3

Cited by 35 publications

(11 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Eastern Pontides (NE Turkey), located within the Alpine-Himalayan orogenic belt, are a signifi cant area where volcanic and plutonic rocks are commonly observed (Arslan et al, 2000Kaygusuz et al, 2006;Kaygusuz, 2009;Saydam Eker et al, 2012;Aslan et al, 2014;Sipahi et al, 2014;Aydınçakır, 2014;Alemdağ, 2015;Temizel et al, 2012Temizel et al, , 2016Kaygusuz and Şahin, 2016;Özdamar, 2016;Yücel et al, 2014Yücel et al, , 2017. There are numerous various sized plutons in the region with a broad age range varying from Permo-Carboniferous to Eocene in the region and types varying from mainly gabbro to granite ( Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Yürekli̇ (Balikesi̇r) Volkani̇ti̇ni̇n Petrografi̇si̇ Ve Petroloji̇si̇: Bi̇ga Yarimadasinda (Kb Türki̇ye) Çarpişma Sonrasi Felsi̇k Volkani̇zmaya Bi̇r Örnek

SAATCI¹,

ASLAN²

2018

Maden Tetkik Ve Arama Dergisi

View full text Add to dashboard Cite

The Eastern Pontides comprise many intrusive bodies varying in composition, size and age from Palaeozoic to Cenozoic. Especially Cenozoic aged bodies are commonly observed in the southern part, while they are rarely exposed in the northern part of the Eastern Pontides. In this study, the petrography and mineral chemistry of the Cenozoic aged Çiçekli, Somarova, Sorkunlu, Şaşurluk, Aydıntepe, Kemerlikdağı and Pelitli plutons located to the north of Bayburt are determined, and the crystallisation conditions of the studied bodies were estimated by means of thermobarometer calculations. The studied plutons extend mostly in NE-SW directions and are approximately ellipsoid in shape. The contacts between the plutons and surrounding rocks are sharp, and plutons commonly contain mafi c microgranular enclaves (MMEs) of different sizes. Petrographic and mineral chemistry studies reveal some disequilibrium textures refl ecting the magma mixing process. Based on modal mineralogy, the plutonic rocks are gabbroic diorite, diorite, tonalite, granodiorite and monzogranite in composition. The rocks have fi ne to medium granular, porphyric, monzonitic, poikilitic, occasionally myrmekitic and micrographic textures. The main minerals are labradorite and albite (An 68-02 ), magnesiohornblende and actinolite (Mg# = 0.6-0.9), diopside and augite (Wo 44-46 ), clinoenstatite (En 53-57 ) and Fe-Ti oxide minerals. Crystallization temperatures calculated from amphibole, biotite, clinopyroxene, magnetite and ilmenite minerals are 405°C to 1161°C, pressure values are 0.1 to 2.7 kbar, and oxygen fugacity (log10 ƒO 2 ) is -20 to -12. Estimation of water content calculated by using amphiboles is between 2.9 and 6.8%. Based on obtained data, it is suggested that the studied plutons were emplaced at shallow depths (~ 1-8 km).

show abstract

Section: Introductionmentioning

confidence: 99%

Yürekli̇ (Balikesi̇r) Volkani̇ti̇ni̇n Petrografi̇si̇ Ve Petroloji̇si̇: Bi̇ga Yarimadasinda (Kb Türki̇ye) Çarpişma Sonrasi Felsi̇k Volkani̇zmaya Bi̇r Örnek

SAATCI¹,

ASLAN²

2018

Maden Tetkik Ve Arama Dergisi

View full text Add to dashboard Cite

show abstract

“…Non sedimentary rocks are increasingly recognized as reservoirs able to produce fluids. Volcanic formations host geothermal [ Arnórsson , ; Nemčok et al , ; Wilson and Rowland , ], groundwater [ Lachassagne et al , ], hydrocarbon [ Feng , ], and mineral [ Spörli and Cargill , ] resources, while also being capable of storing unwanted CO 2 [ Pollyea et al , ; Matter et al , ] and radioactive waste [ Chen et al , ], and capable of supporting surface engineering projects [ Alemdag , ]. The geometry of vesicles and fractures in volcanic units has been extensively studied in outcrops [e.g., DeGraff and Aydin , ; Gudmundsson , ; Conway et al , ] but can be difficult to quantify in reservoirs due to sparse core and wireline logging measurements.…”

Section: Introductionmentioning

confidence: 99%

“…Non sedimentary rocks are increasingly recognized as reservoirs able to produce fluids. Volcanic formations host geothermal [Arnórsson, 1995;Nemčok et al, 2004;Wilson and Rowland, 2016], groundwater [Lachassagne et al, 2014], hydrocarbon [Feng, 2008], and mineral [Spörli and Cargill, 2011] resources, while also being capable of storing unwanted CO 2 [Pollyea et al, 2014;Matter et al, 2016] and radioactive waste [Chen et al, 2001], and capable of supporting surface engineering projects [Alemdag, 2015]. The geometry of vesicles…”

Section: Introductionmentioning

confidence: 99%

Evidence for tectonic, lithologic, and thermal controls on fracture system geometries in an andesitic high‐temperature geothermal field

et al. 2017

View full text Add to dashboard Cite

Analysis of fracture orientation, spacing, and thickness from acoustic borehole televiewer (BHTV) logs and cores in the andesite‐hosted Rotokawa geothermal reservoir (New Zealand) highlights potential controls on the geometry of the fracture system. Cluster analysis of fracture orientations indicates four fracture sets. Probability distributions of fracture spacing and thickness measured on BHTV logs are estimated for each fracture set, using maximum likelihood estimations applied to truncated size distributions to account for sampling bias. Fracture spacing is dominantly lognormal, though two subordinate fracture sets have a power law spacing. This difference in spacing distributions may reflect the influence of the andesitic sequence stratification (lognormal) and tectonic faults (power law). Fracture thicknesses of 9–30 mm observed in BHTV logs, and 1–3 mm in cores, are interpreted to follow a power law. Fractures in thin sections (∼5 μm thick) do not fit this power law distribution, which, together with their orientation, reflect a change of controls on fracture thickness from uniform (such as thermal) controls at thin section scale to anisotropic (tectonic) at core and BHTV scales of observation. However, the ∼5% volumetric percentage of fractures within the rock at all three scales suggests a self‐similar behavior in 3‐D. Power law thickness distributions potentially associated with power law fluid flow rates, and increased connectivity where fracture sets intersect, may cause the large permeability variations that occur at hundred meter scales in the reservoir. The described fracture geometries can be incorporated into fracture and flow models to explore the roles of fracture connectivity, stress, and mineral precipitation/dissolution on permeability in such andesite‐hosted geothermal systems.

show abstract

“…Some researchers (Terzaghi, 1943;Skempton, 1951;Meyerhof, 1963) have noted basic dimensions of the physical and mechanical properties of soils, while other researchers (Keçeli, 1990;Richards et al, 1993;Keçeli, 2000;Kurtuluş, 2000;Türker, 2004;Çinicioğlu, 2005;Önalp and Sert, 2006;Keçeli, 2010;Tezcan et al, 2010;Uzuner et al, 2000;Tezcan and Özdemir, 2011) have used dynamic property parameters of soils. These empirical equations are commonly chosen by researchers and engineers to determine bearing capacity of soils (Alemdağ and Gürocak, 2006;Alemdağ et al, 2008;Kayabaşı and Gökçeoğlu, 2012;Uyanık and Gördesli, 2013;Alemdağ, 2015). However, for the design to be sound, the equation to be used should be chosen well and it is important that the design is made by comparing the results of different equations.…”

Section: Introductionmentioning

confidence: 99%

Zemi̇nleri̇n Emni̇yetli̇ Taşima Kapasi̇tesi̇ni̇n Beli̇rlenmesi̇nde Oturma Mi̇ktarinin Önemi̇

Alemdağ

Cinoğlu

Gacener

2016

Maden Tetkik Ve Arama Dergisi

View full text Add to dashboard Cite

In this study, it is aimed to determine safe bearing capacity of soils, which are out cropped around Tamzi and Akcakale villages located in Gumushane, providing allowable settlement conditions for an optimum foundation design. To define the geotechnical properties of soils, three trenches were dug and two seismic refraction with two Multichannel Spectral Analysis of Surface Waves (MASW) were carried out in each research area. Sieve analyses, shear box tests, triaxial compression tests were carried out on disturbed and undisturbed samples taken from the trenches. Seismic velocities of the soils are determined by seismic refraction and MASW methods. While determining the safe bearing capacity; the equations proposed by Terzaghi, Meyerhof, Kurtuluş, Tezcan and Özdemir, Türker, Keçeli were used and the obtained safe bearing capacity values were compared to each other. After, the soils were modeled numerically by using finite elements method and safe bearing capacities providing allowable settlement conditions were determined. According to the results, safe bearing capacity values obtained from empirical equations are not satisfactory to have an optimum foundation design. For the optimum foundation design, safe bearing capacity should be accepted as 190 kN/m 2 for clayey soil (CL) and 485 kN/m 2 for the clayey sand (SC).

show abstract

Assessment of bearing capacity and permeability of foundation rocks at the Gumustas Waste Dam Site (NE Turkey) using empirical and numerical analysis

Cited by 35 publications

References 32 publications

Yürekli̇ (Balikesi̇r) Volkani̇ti̇ni̇n Petrografi̇si̇ Ve Petroloji̇si̇: Bi̇ga Yarimadasinda (Kb Türki̇ye) Çarpişma Sonrasi Felsi̇k Volkani̇zmaya Bi̇r Örnek

Yürekli̇ (Balikesi̇r) Volkani̇ti̇ni̇n Petrografi̇si̇ Ve Petroloji̇si̇: Bi̇ga Yarimadasinda (Kb Türki̇ye) Çarpişma Sonrasi Felsi̇k Volkani̇zmaya Bi̇r Örnek

Evidence for tectonic, lithologic, and thermal controls on fracture system geometries in an andesitic high‐temperature geothermal field

Zemi̇nleri̇n Emni̇yetli̇ Taşima Kapasi̇tesi̇ni̇n Beli̇rlenmesi̇nde Oturma Mi̇ktarinin Önemi̇

Contact Info

Product

Resources

About