Jeoloji Muhendisligi Dergisi最新文献

{"title":"Yüksek Sıcaklıklara Maruz Kalan Kalkarenitlerin Fiziksel ve Dayanım Özelliklerindeki Değişimin Araştırılması","authors":"C. Atalar, Hakan Ersoy, Murat Karahan, M. O. Sünnetci","doi":"10.24232/JMD.935833","DOIUrl":"https://doi.org/10.24232/JMD.935833","url":null,"abstract":"In this study, the changes in the index and strength properties of calcarenites, which are widely used as building stone in the Turkish Republic of Northern Cyprus, after being subjected to high temperatures between 200 and 1000oC, and the effects of high temperatures on microstructure of the calcarenite were investigated by using electron microscope images. In order to represent a real fire incident, the samples were heated using the temperature-time curves recommended by Eurocode, and left to cool at room temperature after 2 hours of exposure at target temperature. After the experimental studies, it was observed that there was no significant change in density and weight loss values up to 600 oC. After 600 oC, a sudden decrease in density was recorded, at 1000 oC the density dropped below 1 due to Yüksek Sıcaklıklara Maruz Kalan Kalkarenitlerin Fiziksel ve Dayanım Özelliklerindeki Değişimin Araştırılması Investigation on the Change of Physical and Strength Properties of Calcarenite Exposed to","PeriodicalId":35316,"journal":{"name":"Jeoloji Muhendisligi Dergisi","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68808250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bafa Gölü’nün Hidrokimyasal ve Hidrojeolojik İncelenmesi: Sürdürülebilir Su Kaynak Yönetimi","authors":"Anıl Küçüksümbül","doi":"10.24232/jmd.826954","DOIUrl":"https://doi.org/10.24232/jmd.826954","url":null,"abstract":"","PeriodicalId":35316,"journal":{"name":"Jeoloji Muhendisligi Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48081919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erzincan Ovası ve Dolayının Çevre Jeolojisi ve Planlanmasına Bir Yaklaşım","authors":"Doğuş Boz","doi":"10.24232/jmd.826959","DOIUrl":"https://doi.org/10.24232/jmd.826959","url":null,"abstract":"Erzincan plain is located in the area, where earthquakes, landslides, avalanches, floods and other natural disasters are mainly dominant in the upper part of Fırat River basin in the East Anatolian Region. Earthquakes of various magnitudes occurred throughout the history of Erzincan. Earthquakes occurred in the 1939 and 1992 years led to the many casualties and lost of the properties. In the present study, in the light of regional and local geology of Erzincan Plain and vicinity considering – its geomorphology, hydrogeology, natural resources, land-use capability, currentland-use and its environmentel geology have been presented and related future land use planning have been evaluated. Environmental systems have been defined in the frame of environmental geology. These systems are mainly Erzincan Plain System, Ergandağ System and Man-made or Antropogenic System. Environmental units those characterize each system have been identified. Thus, land-use capabilities of 26 environmental units have been evaluated depending on their general properties, index characteristics and natural disaster risks. The evaluation of land-use capabilities have been carried out on the basis of land-use forms. The matters, which are necessary to be considered to wards to the planning of the region in the future, have been presented. Based on recommended plan, it is possible to control a great deal of environmental problems and protect the Erzincan Plain and surroundings, as well.","PeriodicalId":35316,"journal":{"name":"Jeoloji Muhendisligi Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68808159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kapadokya Bölgesi’ndeki Kaya Oyma Depoların Tasarım Ölçütlerinin Sayısal Yöntemlerle Değerlendirilmesi","authors":"İsmail Di̇ncer","doi":"10.24232/jmd.826934","DOIUrl":"https://doi.org/10.24232/jmd.826934","url":null,"abstract":"","PeriodicalId":35316,"journal":{"name":"Jeoloji Muhendisligi Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68808094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Güdül (Ankara) Yöresi Zeminlerinin Şişme Özelliklerinin Değerlendirilmesi","authors":"Rıza Soypak","doi":"10.24232/jmd.826946","DOIUrl":"https://doi.org/10.24232/jmd.826946","url":null,"abstract":"","PeriodicalId":35316,"journal":{"name":"Jeoloji Muhendisligi Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68808147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of Engineering Properties of Al-Haweri Scoria, NW Sana’a, Yemen","authors":"I. Al-Akhaly","doi":"10.24232/jmd.826975","DOIUrl":"https://doi.org/10.24232/jmd.826975","url":null,"abstract":"Yemen has an appreciable amount of scoria aggregate, but a very small proportion is used as cement additions by local cement factories in blended Portland cement production and very rarely as aggregates into the production of lightweight blocks. Scoria aggregates are widespread in and around the volcanic cones present in Sana’a-Amran volcanic field. This paper presents the results of evaluation of engineering properties of natural scoria, collected from Al-Haweri volcanic cone, NW Sana’a, Yemen as lightweight aggregate. Chemical composition and petrographical characteristics of scoria were determined. The physical properties of the scoria aggregate such as flakiness and elongation indices, specific gravity, water absorption, unit weight, clay lumps and materials finer than 75µm gave acceptable results, but the gradation indicated it would need to be processed before use in a mix. The porosity is high, 60.79%. The Los Angeles abrasion and the aggregate crushing values are higher than the limits of ASTM and BS specification, but the aggregate impact value is close to the upper limits of BS specification. The soundness is within the ASTM specification limits. Therefore, it can be concluded that scoria aggregates can be used to produce structural concrete and masonry blocks with a relatively low density. The scoria aggregates satisfied the requirements of lightweight aggregate for structural concrete and masonry blocks purposes.","PeriodicalId":35316,"journal":{"name":"Jeoloji Muhendisligi Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68808177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"İki Farklı Örneklem Tekniği Kullanılarak Oluşturulan Heyelan Duyarlılık Haritalarının Frekans Oranı (FO) Yöntemi ile Karşılaştırılması","authors":"Gülseren Dağdelenler","doi":"10.24232/jmd.740509","DOIUrl":"https://doi.org/10.24232/jmd.740509","url":null,"abstract":"Heyelanlarin verdigi zararlarin azaltilmasi amaciyla heyelan olusumunun onceden tahmini ve heyelana duyarli alanlarin literaturde mevcut yontemlerle belirlenmesi son derece onemlidir. Bu dogrultuda, heyelanlarin ayni litolojide gelistigi Bartin ilinin Ulus ilcesinin heyelan duyarlilik haritalamasinin yapilmasi amaclanmistir. Calismanin onemli noktasi, Chebyshev teoreminin bu calismada secilen calisma alani icin sinanmasi ve bu yontemle uretilen duyarlilik haritasinin mevcut literaturde siklikla kullanilan tum heyelan kutlesi icerisindeki piksel sayma teknigi ile olusturulan veri seti kullanilarak uretilen heyelan duyarlilik haritasi ile karsilastirilmasidir. Calisma alaninda toplam 195 adet heyelan haritalanmis ve heyelanli ve heyelanli olmayan alanlarin belirlenmesinde Chebyshev teoremi ve tum heyelan kutlesi icerisindeki piksel sayma teknigi olmak uzere iki farkli orneklem teknigi kullanilmistir. Heyelan duyarlilik analizlerinde kullanilmak uzere topografik yukselik, egim, baki, egrisellik ve NDVI (normalize edilmis fark bitki ortusu indeksi) olmak uzere toplam 5 adet parametre haritasi uretilmistir. Her iki orneklem teknigi kullanilarak yapilan duyarlilik analizlerinde literaturde siklikla kullanilan Frekans Orani (FO) yontemi kullanilmis ve iki farkli harita uretilmistir. Duyarlilik haritalarinin performansi ise Egri Altinda Kalan Alan yontemine (ROCEAA) gore degerlendirilmis ve EAA degerleri sirasiyla Chebyshev teoremi icin 0.78 ve tum heyelan kutlesindeki piksel sayilarina gore yapilan orneklem teknigi icin ise 0.72 olarak belirlenmistir. Bu degerlere gore, uretilen her iki duyarlilik haritasinin da kabul edilebilir duzeyde oldugu ve Chebyshev teoremi ile orneklem yapilarak uretilen duyarlilik haritasinin performansinin, diger orneklem yontemine gore nispeten daha yuksek ciktigi gorulmustur. Elde edilen bu sonuc, calismada kullanilan Chebyshev yonteminin de heyelan duyarlilik haritalama calismalarinda etkin olarak kullanilabilir alternatif bir yontem oldugunu ve bu yontemle uretilen duyarlilik haritasinin da basarili bir kestirime sahip oldugunu gostermistir.","PeriodicalId":35316,"journal":{"name":"Jeoloji Muhendisligi Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68807952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Menderes Masifi′Nde Açılmış Açık Ocak Albit Madenindeki Bir Duraysızlığın Nedenlerinin Araştırılması ve Robotic Total Station Cihazı Kullanılarak Yenilme Öncesinde Şev Hareketlerinin İzlenmesi","authors":"Saffet Deniz Karagöz, Cem Kincal, M. Koca","doi":"10.24232/jmd.740511","DOIUrl":"https://doi.org/10.24232/jmd.740511","url":null,"abstract":"19.12.2018 tarihinde Menderes Masifi icinde, ayrismis gnayslarda yer alan bir acik ocak madeninde buyuk olcekli bir heyelan meydana gelmistir. Hemen hemen sev yuzeyine paralel uzanan bir yenilme yuzeyi oldukca sig bir derinlikte gelismistir (Maksimum derinlik: 17 m). Duraysizligin gelistigi sevin genel acisi 25° ve genel sev yuksekligi ise 80 m′dir (Kotlar: 490 m – 410 m). Kayan malzeme miktari ise yaklasik 700×103 m3′tur. Acik ocaktaki kaya sevlerinde duraysizlik tumuyle gerceklesmeden once kayda deger deformasyonlar meydana gelmistir. Heyelan olusumu oncesindeki soz konusu sev hareketlerinin zamana bagli olarak (2017–2018 yillari arasi, 750 gun) izlenmesi ve duraysizligin nedenlerinin arastirilmasi bu calismada amaclanmistir. Hareket izleme calismalari sirasinda gunluk ve saatlik yagis miktarlari da olculmus ve kaydedilmistir. Jeolojik yapi ile duraysizligin mekanizmasi arasindaki iliskiyi belirlemek icin sev hareketi olcum verileri es zamanli yagis verileriyle birlikte “GeoMoS” bilgisayar programi kullanilarak degerlendirilmistir. Onceden cevherin tavan blogunda kucuk olcekli bazi sev duraysizliklari not edilmistir. Diger taraftan, gelismis yenilme yuzeyi boyunca, yeralti suyu basinc degisimlerinin tetikledigi daha buyuk yer degistirmeleri kapsayan yogun yagisli donemler, cevherin tavan blogunda meydana gelen buyuk olcekli yenilmeyi ilerletmistir. Kurak donemlerde, sev hareketlerinin hizi ortalama 3.5 mm/gun′dur. 04.12.2018 tarihinde gerceklestirilen ucuncu dekapaj calismasi nedeniyle acik ocakta sev hareketleri bir miktar ivmelenmistir. Şev topugunda gerceklestirilen kontrolsuz kaziya kadar (14.12.2018), sevin toplam bileske yer degistirme miktari 100 cm artmistir ve bu donemde hareketlerin ortalama hizi 10 cm/gun olarak hesaplanmistir. Son olarak, topuk kazisindan duraysizligin gelistigi tarihe kadar (19.12.2018), yogun yagislarin eslik ettigi hareketin miktari 160 cm/ gun olarak gerceklesmistir. Hareket izleme olcumlerine gore sevin toplam bileske yer degistirmesi 10.5 m seviyesinde gerceklesmistir. Ayrica, duraysizligin gelisimindeki farkli safhalarini tanimlamaya yonelik olarak bazi gostergeler de belirlenmistir. En onemli gostergeler yer degistirmeler, topuktaki kabarmalar ve sev topuguna yakin yuksekliklerde meydana gelen makaslama deformasyon birikimleridir.","PeriodicalId":35316,"journal":{"name":"Jeoloji Muhendisligi Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68808022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Karabağlar (İzmir) Bölgesindeki Heyelanların Olası Yenilme Koşulları","authors":"Koray Ulamiş, Recep Kiliç","doi":"10.24232/jmd.740530","DOIUrl":"https://doi.org/10.24232/jmd.740530","url":null,"abstract":"Kentlesmede dogal afet potansiyelinin ve olasi etkilerinin onceden belirlenmesi onem arz etmektedir. Ulkemizde en sik gorulen afetlerden olan heyelan, muhendislik yapilarini ve cevreyi olumsuz etkilemektedir. Bu calismada, Izmir ili, Karabaglar ilcesi sinirlarindaki heyelanlarin muhendislik jeolojisi ozellikleri incelenerek, yenilme kriterleri degerlendirilmistir. Inceleme alaninda Ust Kretase yasli Bornova Karmasigi uzerinde uyumsuz Miyosen yasli killi kirectasi ile Kuvaterner yamac molozu bulunmaktadir. Arazide heyelanlarin boyutlari belirlenerek, kayma yuzeyi derinlikleri ile yeralti suyu seviyesini olcmek icin derinlikleri 10.0 m ile 35.0 m arasinda degisen 52 adet sondaj yapilmistir. Inceleme alanini olusturan Şamli Tepe’nin guney, bati ve kuzey kesimlerinde toplam 58 adet heyelan belirlenmistir. Heyelanlar, Miyosen yasli karbonatli seviyeler ile cakil, kum ve silt mercekleri bulunduran kil icerisinde gelismistir. Heyelanlarin kabarma ve akma bolgelerinde daha kucuk boyutlu cok sayida ikincil yenilmeler mevcuttur. Heyelanlarda geriye donuk analizler yapilarak limit denge sartlarindaki reziduel icsel surtunme acisi ve reziduel kohezyon belirlenmistir. Şamli Tepe ve guneyindeki yol kazisinda gecmiste topuktan yuk alinmasi ve K-G dogrultulu dere yataginin asindirmasi ile dusuk kotlarda baslayan yenilmeler kuzeye dogru gerileyerek daha buyuk captaki heyelani tetiklemistir. Şevlerde statik kosul yaninda inceleme alaninin depremselligi de dikkate alinarak psodostatik analizler yapilmistir. Guvenlik katsayisi ile psodostatik katsayi iliskisi incelenerek, analizlerde limit denge kosulunu saglayan katsayi 0.10 olarak belirlenmistir. Elde edilen deger inceleme alani ve cevresindeki en buyuk yatay yer ivmesi ile beraber degerlendirildiginde ileride yapilacak sev durayliligi calismalarinda kullanilabilecek niteliktedir.","PeriodicalId":35316,"journal":{"name":"Jeoloji Muhendisligi Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68808082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mikaşistlerin deformabilite, modül oranı ve anizotropik davranışlarının belirlenmesi; Burgaz baraj sahasından (İzmir-Türkiye) örnek bir çalışma","authors":"Serkan Uslu, M. Koca","doi":"10.24232/jmd.654888","DOIUrl":"https://doi.org/10.24232/jmd.654888","url":null,"abstract":"","PeriodicalId":35316,"journal":{"name":"Jeoloji Muhendisligi Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49145964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}