Geology seismotectonics and soil liquefaction susceptibility of Ilgın (west-central part of Turkey) residential area

Özdemir, Adnan; İnce, İsmail

doi:10.1016/j.enggeo.2004.10.002

Cited by 11 publications

(13 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Quaternary-aged and loose precipitations not only have the potential for liquefaction but also the potential for settlement due to seismic effects. Ozdemir and Ince (2005) showed that the Ilgin soils have medium to high liquefaction potentials (i.e., 70-80%).…”

Section: Resultsmentioning

confidence: 99%

“…The geology and hydrogeology of Ilgin and its vicinity has been previously researched (Boray et al, 1985;Saroglu et al, 1987;Barka et al, 1995;Kocyigit et al, 2000;Canik, 1981). The regional geology, hydrogeology, tectonics, historical earthquakes, and potential for liquefaction of the study area has also been previously investigated in detail (Ozdemir and Ince, 2005). Data from previous studies that is relevant to this study is summarised in the next paragraph.…”

Section: Location Information Morphology Geology and Hydrogeologymentioning

confidence: 99%

“…A groundwater map was drawn from data obtained by water depths measurements in 45 boreholes during July of 2000 ( Figure 3). The groundwater table depth ranges from -2 m to -4 m. (Ozdemir and Ince, 2005) Ilgin is located at the intersection of the following four active major faults: the southwest trending Sultandagi (Boray et al, 1985;Saroglu et al, 1987), the E-W trending Argithani fault (Kocyigit et al, 2000), the NNE-WWS trending Mecidiye fault, and the N-S trending Cavuscu fault. There are also numerous secondary faults in the region.…”

Section: Tectonics Seismo-tectonic and Ground Liquefaction Potentialmentioning

confidence: 99%

“…Vertical and lateral transitions at short distances are present within the Quaternaryaged units. Areas in Ilgin are underlain by loose Quaternary units, and liquefaction susceptibility of such loose precipitation is medium to high (Ozdemir and Ince, 2005). A groundwater map was drawn from data obtained by water depths measurements in 45 boreholes during July of 2000 ( Figure 3).…”

Section: Tectonics Seismo-tectonic and Ground Liquefaction Potentialmentioning

confidence: 99%

“…Although there is much interest, previous studies have not studied ground settlement due to seismic effects. Generating fundamental data to inform the planning of residential areas (in both Ilgin and other regions) and the design of earthquake-resistant structures requires determining the ground deformations due to the seismic movements, as well as liquefaction susceptibility of mediumhigh and low resistance areas (Ozdemir and Ince, 2005). This particular study determines the level of the settlements in Ilgin and similar areas by performing a full evaluation of the morphology, geology, seismotectonics, and liquefaction potential of the residential areas in Ilgin.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Potential Settlement Due to Seismic Effects in the Residential Area of Ilgin (Konya, Turkey)

Özdemir

Nalbantçılar

2016

Earth sci. res. j.

View full text Add to dashboard Cite

Ilgin lies on newly formed, loose, granular deposits, and there is substantial risk for surface liquefaction and foundation settlements due to the seismic effects resulting from groundwater close to the surface. This study evaluates potential settlement due to seismic effects in the residential areas of Ilgin using the Standard Penetration Test (SPT) performed on 45 geotechnical bores. In Turkey, where earthquakes occur frequently, the selection of residential areas is of great importance. In this research, the number of settlements was calculated considering an earthquake having a Local Magnitude of 6 (i.e., ML ≥ 6.0 and a ≥ 0.4 g) under a 0.4 g seismic force, and a potential settlement map of the residential area was prepared. The amount of settlement exceeds 20 cm at locations near Ilgin Lake and in the northern section of Ilgin residential areas; downtown, the settlement ranges from 10-20 cm. The settlements presented here exceed the allowable threshold limits for structures constructed using adobe and brick in this district. Thus, improvements to minimise earthquake-induced damages are required for structures in Ilgin. Moreover, the selection of new residential areas, along with the proper design of the structures before construction, should be examined further to avoid ground liquefaction and structure damage due to settlement.La localidad de Ilgin está ubicada sobre depósitos recién formados, granulares y no compactos, por lo que existe un riesgo sustancial de licuefacción de la superficie y la creación de asentamientos o deslizamientos debido a los efectos sísmicos resultantes del agua subterránea poco profunda. Este artículo evalúa el potencial de asentamiento debido a los efectos sísmicos en las áreas residenciales de Ilgin a través del Ensayo de Penetración Estándar (SPT, en inglés) realizado en 45 perforaciones geotécnicas. En Turquía, donde los terremotos ocurren frecuentemente, la selección de áreas residenciales es de gran importancia. En esta investigación, se calculó el número de asentamientos ante un terremoto con Magnitud Local (ML) de 6 y con una fuerza sísmica de 0.4 g para preparar un mapa de asentamientos en el área residencial. La cantidad de asentamientos supera los 20 centímetros en lugares cercanos al lago Ilgin y en la sección norte del área residencial; en el centro, los rangos de asentamiento van de 10 a 20 cm. Los asentamientos presentados exceden los límites de lo permitido para estructuras construidas en adobe y ladrillo en este distrito. Por esto, se requieren mejoras para minimizar los daños inducidos por terremotos en las estructuras de Ilgin. Además, la selección de nuevas áreas residenciales, junto con el diseño apropiado de las estructuras antes de la construcción, debe ser revisado atentamente para evitar la licuefacción del suelo y el daño de las estructuras debido al asentamiento.ABSTRACT RESUMEN

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Location Information Morphology Geology and Hydrogeologymentioning

confidence: 99%

Section: Tectonics Seismo-tectonic and Ground Liquefaction Potentialmentioning

confidence: 99%

Section: Tectonics Seismo-tectonic and Ground Liquefaction Potentialmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Potential Settlement Due to Seismic Effects in the Residential Area of Ilgin (Konya, Turkey)

Özdemir

Nalbantçılar

2016

Earth sci. res. j.

View full text Add to dashboard Cite

show abstract

Liquefaction susceptibility mapping using geotechnical laboratory tests

May¹,

Kacem

Dlala³

2009

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

ABSTRACT:The soil liquefaction potential has been evaluated for the Ariana Region because of its important socioeconomic interest and its location. Liquefaction susceptibility mapping is carried out using a decisional flow chart for evaluation of earthquake-induced effects, based on available data such as paleoliquefaction, geological, groundwater depth, seismotectonic, sedimentary features and geotechnical parameters in particular laboratory testing like grain size analyses and state parameters. Survey results showed that some of these localities are considered as possible sites to soil liquefaction. Indeed, Quaternary alluvium deposits, paleo beaches and recent deposits that edge the lake and the sebka constitute the most susceptible locations to liquefaction. In the east and the west sides of the studied zone, Quaternary deposits are less susceptible to the liquefaction due to the groundwater level deepening and to the relatively old age of the deposits. Elsewhere sedimentary formations are classified as non-liquefiable as they are heavily compacted and old.

show abstract

Mapping investigation based on engineering geology of a developing urban area (Niğde, Turkey)

et al. 2021

View full text Add to dashboard Cite

Geology seismotectonics and soil liquefaction susceptibility of Ilgın (west-central part of Turkey) residential area

Cited by 11 publications

References 11 publications

Potential Settlement Due to Seismic Effects in the Residential Area of Ilgin (Konya, Turkey)

Potential Settlement Due to Seismic Effects in the Residential Area of Ilgin (Konya, Turkey)

Liquefaction susceptibility mapping using geotechnical laboratory tests

Mapping investigation based on engineering geology of a developing urban area (Niğde, Turkey)

Contact Info

Product

Resources

About