Kahriman, Ali
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Name Variants
Kahriman, A.
KAHRIMAN Ali
Ali, Kahriman
Kahriman Ali
A., Kahriman
Kahriman, Ali
Ali KAHRiMAN
Ali KAHRIMAN
KAHRiMAN Ali
Kahriman A.
Ali Kahriman
Kahriman,A.
Kahriman, Ali
Kahriman, A.
Kahriman,A.
Kahriman, Ali
Kahriman, A.
KAHRIMAN Ali
Ali, Kahriman
Kahriman Ali
A., Kahriman
Kahriman, Ali
Ali KAHRiMAN
Ali KAHRIMAN
KAHRiMAN Ali
Kahriman A.
Ali Kahriman
Kahriman,A.
Kahriman, Ali
Kahriman, A.
Kahriman,A.
Kahriman, Ali
Kahriman, A.
Job Title
Prof.Dr.
Email Address
ali.kahriman@okan.edu.tr
Main Affiliation
Makine / Machinery
Status
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Scholarly Output
40
Articles
5
Citation Count
36
Supervised Theses
20
11 results
Scholarly Output Search Results
Now showing 1 - 10 of 11
Conference Object Citation - Scopus: 03-D numerical modelling of ground vibration waves induced by blasting at a quary(2010) Aksoy,M.; Kahriman,A.; Makine / MachineryGround vibrations arising from excavation with blasting is one of the environmental problems in mining industry. The prediction of ground vibrations and the realization of controlled blasting based on this prediction have a great importance in order to minimize the environmental effects of blasting. The purpose of this study is to analyze the ground vibrations induced by blasting at Akyol Quarry which selected as a test site after the determination of the geomechanical properties of the rock mass with a computer software (AUTODYN 3D) that is able to model three dimensionally. During the field study, samples were taken from the different regions of the quarry. On these samples, geomechanical properties of the intact rock samples were determined. Then, geomechanical properties of the rock mass were estimated. In the numerical modeling stage, four main numerical models were prepared in the AUTODYN software by using the data obtained from the field and laboratory studies. The data obtained from these model runs was compared to the data obtained in the field measurements. As a result of this comparison, the model that would be used for future studies was selected.Article Citation - WoS: 9Citation - Scopus: 10Bench blasting design based on site-specific attenuation formula in a quarry(Springer Heidelberg, 2013) Ozer, Umit; Karadogan, Abdulkadir; Kahriman, Ali; Aksoy, Mehmet; Makine / MachineryThis research was performed on the quarry that will be opened to produce aggregates and rock filling material at Catalagzi region at Zonguldak province in Turkey. However, there are some structures which can be adversely affected by blasting at the quarry. These structures are a methane exploration drill hole and a house at the distances of 340 and 390 m, respectively. One of the main goals of this study is to perform a preliminary assessment of possible damage effect of ground vibrations induced by blasting on these structures by risk analysis based on ground vibration measurements. In order to propose a preliminary blast design models separately for aggregate and rock filling material production, six test shots with different maximum charge per delay were planned and fired at the quarry. In these shots, 90 events were recorded. To predict peak particle velocity (PPV), the relationship between the recorded peak particle velocities and scaled distances were investigated. During this investigation, the data pairs were statistically analyzed and a PPV prediction equation specific to this site with 95% prediction line were obtained. And also, this equation was used in the derivation of the practical blasting charts specific to this site as a practical way of predicting the peak particle velocity and maximum charge per delay for future blasting. A risk analysis was performed by using this equation. In the light of this analysis, preliminary blast design models were proposed to be used in this quarry for aggregate and rock filling material production.Conference Object Citation - WoS: 0THE ANALYSIS OF GROUND VIBRATION BLAST INDUCED ON ISTANBUL KAVACIK-BEYKOZ WASTE WATER TUNNEL(int Scientific Conference Sgem, 2008) Ozer, Umit; Kahriman, Ali; Aksoy, Mehmet; Karadogan, Abdulkadir; Adiguzel, Deniz; Makine / MachineryThis paper presents the results of ground vibration measurements and environmental issues occurred on tunnel blasting activities during Kavacik-Beykoz waste water tunnel construction under a residential area in Istanbul, Turkey. Within the scope of the study, the blasting pattern of tunnel was engineered by using Tunnel 2000 design software. 5 events in 5 shots at S2 shaft tunnels, , 6 events in 6 shots at S4 shaft tunnels,, 32 events in 32 shots at S6-shaft tunnels and, 7 events in 7 shots at S7 shaft tunnels were recorded.. The particle velocities and frequencies associated with 50 shots during the advancement of the tunnels were monitored and analyzed by vibration monitors at the test site. Scaled distance and peak particle velocity data pairs were analyzed statistically. During the statistical analysis, three different predictor equations widely used in the literature were used to predict peak particle velocity (PPV) and the results and comparison of the predictor equations are presented in this paper. As a result of this analysis, empirical relationships between Scaled distance and peak particle velocity for these regions were established with higher correlation coefficients. Finally, the particle velocities and frequency values of all blast events were evaluated according to T.C. Ministry of Environment and Forest's Regulation of Management and Evaluation of Noise, The United Sates Bureau of Mines (USBM) and German DIN 4150 Norms in order to predict, and compare the influence grades to the neighboring buildings, and structures.Conference Object Citation - WoS: 2A STUDY OF INVESTIGATING THE RELATIONSHIP BETWEEN BLAST FRAGMENTATION AND GROUND VIBRATIONS INDUCED BY BLASTING(int Scientific Conference Sgem, 2009) Ozer, Umit; Adiguzel, Deniz; Aksoy, Mehmet; Karadogan, Abdulkadir; Kahriman, Ali; Ozden, Hasan; Kara, M. Yasar; Makine / MachineryThe environmental problems arising from ground vibration has been faced and discussed frequently in various industries such as quarry, mining, civil works, shaft, tunneling, pipe line and dam construction etc. where the blasting operations are unavoidable. In bench blast design, not only the technical and economical aspects, such as block size, uniformity and cost, but also the elimination of environmental problems resulting from ground vibration and air blast should be taken into consideration. One of the fundamental requirements for being able to optimize blasting is the ability to predict fragmentation. The prediction of ground vibration components plays an important role in the minimization of the environmental complaints. This paper presents the results of ground vibration and particle size distribution measurements carried out in a quarry located on the Catalca region in Turkey. Ground vibration components were measured for shots during bench blasting at this quarry and particle size distributions after shots. In blasting operations; ANFO is commonly used as blasting agent at the quarry. The parameters of scaled distance (charge quantity per delay and the distance between the source and the station) were recorded carefully, the ground vibration components were measured for all blast events using vibration monitor and the absolute distances between shot points and monitor stations were determined by using GPS. The method of fragmentation assessment is to obtain digital images of rock fragments and to analyze these images by using digital image processing software. In this study, Split Desktop digital image analysis software was used to determine particle size distribution. The main goal of this study is to investigate the relationship between ground vibration induced by blasting and blast fragmentation. The data obtained at this quarry were gathered together to represent the region and analyzed statistically. At the end of statistical evaluation of these data, an empirical relationship with a reasonable correlation coefficient was established between peak particle velocity, scaled distance and particle size distribution.Conference Object Citation - Scopus: 0The analysis of ground vibration blast induced on Istanbul Kavacik-Beykoz waste water tunnel(2008) Ozer,U.; Kahriman,A.; Aksoy,M.; Karadogan,A.; Adiguzel,D.; Makine / MachineryThis paper presents the results of ground vibration measurements and environmental issues occurred on tunnel blasting activities during Kavaci{dotless}k-Beykoz waste water tunnel construction under a residential area in Istanbul, Turkey. Within the scope of the study, the blasting pattern of tunnel was engineered by using Tunnel 2000 design software. 5 events in 5 shots at S2 shaft tunnels, 6 events in 6 shots at S4 shaft tunnels, 32 events in 32 shots at S6-shaft tunnels and, 7 events in 7 shots at S7 shaft tunnels were recorded. The particle velocities and frequencies associated with 50 shots during the advancement of the tunnels were monitored and analyzed by vibration monitors at the test site. Scaled distance and peak particle velocity data pairs were analyzed statistically. During the statistical analysis, three different predictor equations widely used in the literature were used to predict peak particle velocity (PPV) and the results and comparison of the predictor equations are presented in this paper. As a result of this analysis, empirical relationships between Scaled distance and peak particle velocity for these regions were established with higher correlation coefficients. Finally, the particle velocities and frequency values of all blast events were evaluated according to T.C. Ministry of Environment and Forest's Regulation of Management and Evaluation of Noise, The United States Bureau of Mines (USBM) and German DIN 4150 Norms in order to predict, and compare the influence grades to the neighboring buildings, and structures.Conference Object Citation - WoS: 03-D NUMERICAL MODELLING OF GROUND VIBRATION WAVES INDUCED BY BLASTING AT A QUARY(int Scientific Conference Sgem, 2010) Aksoy, Mehmet; Kahriman, Ali; Makine / MachineryGround vibrations arising from excavation with blasting is one of the environmental problems in mining industry. The prediction of ground vibrations and the realization of controlled blasting based on this prediction have a great importance in order to minimize the environmental effects of blasting. The purpose of this study is to analyze the ground vibrations induced by blasting at Akyol Quarry which selected as a test site after the determination of the geomechanical properties of the rock mass with a computer software (AUTODYN 3D) that is able to model three dimensionally. During the field study, samples were taken from the different regions of the quarry. On these samples, geomechanical properties of the intact rock samples were determined. Then, geomechanical properties of the rock mass were estimated. In the numerical modeling stage, four main numerical models were prepared in the AUTODYN software by using the data obtained from the field and laboratory studies. The data obtained from these model runs was compared to the data obtained in the field measurements. As a result of this comparison, the model that would be used for future studies was selected.Article Citation - WoS: 26Citation - Scopus: 29A new damage criteria norm for blast-induced ground vibrations in Turkey(Springer Heidelberg, 2014) Karadogan, Abdulkadir; Kahriman, Ali; Ozer, Umit; Makine / MachineryEnvironmental problems such as vibration and air blast are often faced and discussed in mining, quarrying, civil construction, shaft tunnel, pipeline, and dam operations, where blasting is inevitable. It is necessary to establish national standards in order to minimize environmental problems induced by blasting and judicial matters in our country as it is in the USA, European Union (EU) countries, and other developed countries. This necessity and the obligation of Turkey, which has started the procedure of joining the EU, to accept EU criteria emphasize the importance of this study. In other words, the establishment of a particular national standard related with this subject is inevitable for Turkey. This will be possible only by studying and applying scientific methods and techniques by experts. This paper presents a new damage criterion norm for blast-induced ground vibrations in Turkey. In this study, first, numerous vibration records were taken in blasting operations performed at different sites and rock units. For these rock units, particle velocity predictions and frequency analysis were done. At the same time, structures in the neighborhoods of these blasts were also observed and investigated. Finally, a damage criterion norm based on risk analysis was established and proposed by using these collected data. In light of the norm to be obtained from the data that were collected in the research, it will lead the excavation work in our country to be performed in such way that they are more effective and will cause minimum environmental problems.Conference Object Citation - Scopus: 1The analysis of blast-induced ground vibrations for different rock units(2009) Karadogan,A.; Kahriman,A.; Ozer,U.; Makine / MachineryThis paper presents the analysis of ground vibration parameters induced by blasting excavations realized at different sites located close to the residential areas. Within the scope of this study, in order to predict peak particle velocity and determine the slope of the attenuation curve for all sites and rock units, ground vibration components were measured for all blast events over a long period. During the study, while the parameters of scaled distance were recorded carefully, the ground vibration components were measured by suitable monitors for the all blast events of all blasting sites. At the end of evaluation of the data pairs, empirical relations, which gives average line at 95% confidence level and upper bound 95% prediction line with good correlation coefficients were established and suggested for each site and rock unit. As a result of the studies in different rock units in question, some practical charts are created in order to minimize the psychological effects of the shots and make the authorities of shots job easier and make sure that the shots in different rock units will be done in a controlled way. © 2009 All Rights Reserved by the International Multidisciplinary Scientific GeoConference SGEM.Master Thesis Türkiye ticari patlayıcı portföyü ve patlayıcı madde emniyet tedbirleri(2018) Deniz, Engin; Kahriman, Ali; Makine / MachineryPatlayıcı Madde Mühendisleri tarafından icra edilecek faaliyete uygun patlayıcı maddenin seçilmesi, patlayıcı maddenin nakliyesi, patlayıcı maddelerinin uygun depolama alanlarında uygun depolama şartlarında depolanması ve patlayıcı madde ile ilgili iş güvenliği çok önemli olduğu bilinmektedir. Bu bakımdan Bölüm 2'de öncelikle patlayıcı maddenin tanımı yapılmış olup ve ardından kısaca patlayıcı madde tarihçesinden bahsedilmiştir. Müteakiben patlayıcı maddeler sınıflandırılarak gösterilmiş ve açıklanmıştır. Mühendislik uygulamalarında kullanılacak olan patlayıcının performans karakteri ve özellikleri bu bölümde detaylı olarak açıklanmıştır. Sırasıyla ticari patlayıcılar ve askeri patlayıcılar tek tek gösterilmiş ve hemen ardından elektriksiz ateşleme sistemleri, elektronik ateşleme sistemleri ve elektrikli ateşleme sistemleri çalışma esasları açıklanmıştır. Bu bölümde son olarak fitil sistemleri ve ateşleme kaynaklarından bahsedilmiştir. Günümüzde çok büyük önem kazanan delme ve patlatma hakkında genel bilgiler Bölüm 3'ün başlangıcında yer almaktadır. Günümüzde delme patlatma teknolojisi temel kullanım alanı madencilik sektörü olarak bilinmektedir. Fakat madencilik sektörü dışında özellikle askeri alanlarda, tarım ve ormancılık alanında, inşaat alanında yaygın olarak kullanılmaktadır. Delme patlatmanın genel ve özel kullanım alanları hakkında bilgiler bu bölümde geniş yer kaplamaktadır. Patlatma uygulamalarının detaylı olarak anlatılmasına müteakip patlatma kaynaklı çevresel sorunlardan bahsedilmiştir. Taş savrulması patlatma uygulamalarının en belirgin çevresel sorunudur. Taş savrulmasını kontrol edilebilmesi maksadı için alınması gereken önlemler açıklanmıştır. Ayrıca hava şoku, toz emisyonu ve yer sarsıntısı ve bunların meydana getirmiş olduğu etkileri azaltmak için neler yapılması gerektiği anlatılmıştır. Bölüm 4'ün başlarında delme ve patlatma faaliyeti öncesinde, esnasında ve sonrasında uyulması gereken emniyet tedbirleri belirtilmiştir. Patlayıcı maddelerin üretiminden kullanılmasına kadar olan süreçte patlayıcı maddelerin nakliyatı, patlayıcı maddelerin depolanması çok dikkat edilmesi gereken hususların başında yer almaktadır. Patlayıcın uygun patlayıcı depolarında uygun depolama koşullarında depolanması gerekmektedir.. Bölüm 5'te ise patlayıcı madde yangınları hakkında bilgiler yer almaktadır. Olası bir patlayıcı madde yangının önlenmesi için öncesinde alınması gereken tedbirler detaylı olarak anlatılmıştır. Ayrıca olası bir patlayıcı madde yangını durumunda uygulamamız gereken hareket tarzlarını çok iyi seviyede bilmek büyük felaketlerin önlemesini sağlayabilir. Bilindiği üzere patlayıcı maddeler bir yangın halinde meydana getirdikleri yangın tehlikeleri bakımından dört gruba ayrılmış ve bu gruplar 1,2,3 ve 4 rakamları ile sembolize edilmiştir. Söz konusu hususlar hakkında detaylı bilgiler bu bölümde açıklanmıştır. Yangın çeşitlerine göre hareket tarzı ve kullanılacak olan malzemeler herkes tarafından bilinmesi gereken hususların başında yer almaktadır. Bu bölümde patlayıcı madde yangını, alınması gereken tedbirler, uygulanması gereken hareket tarzları detaylı olarak anlatılmıştır. Bölüm 6'da ise ülkemizde patlayıcı madde üreten firmalar tarafından üretilen yemlemeye duyarlı patlayıcılar, kapsüle duyarlı patlayıcılar, elektrikli ateşleme elamanları ve elektriksiz ateşleme elemanları araştırılmıştır. Araştırma esnasında patlayıcılar detonasyon hızı, enerji, patlama ısısı, gaz hacmi, yoğunluk, suya dayanıklılık, duyarlılık, kullanım sahası ve grizu güvenliği özellikleri kıyaslanmıştır. Ateşleme elemanları ise gecikme aralığı, gecikme sayısı, şarj tabanı ve kullanım sahası özellikleri kıyaslanmıştır.Conference Object Citation - WoS: 0Blasting Effect Based Vibrations on Existing Buildings Specific to Interior Forces with Dynamic Analysis(Agro Arge Danismanlik San ve Tic As, 2016) Yildizlar, B.; Akcay, C.; Oztorun, N. K.; Kahriman, A.; Makine / MachineryThe rock excavation works are mainly performed on blasting in mines or construction sites close to settlements may mostly bring along some environmental problems as well. The increase in dimensions and capacities of blasting activities in parallel to requirements raises the dimensions of the environmental problems. The most important negative effect on the environment is the vibrational motion which is created by the lost energy released from the blasting activity. Because the vibrations occurred due to blasting activities performed close to settlements has the possibility to damage surrounding buildings. Although source of the grievance is mostly seeming to be the blasting activity creating the vibration, it may be the existing buildings in some circumstances which are under their design capacity. In order to review the possible impacts of vibrational effect on surrounding buildings among the blasting based environmental problems; an existing building which is selected as specimen, serves as an office and has RC frame and shear wall system was examined specific to interior forces. The existing buildings were individually examined in terms of design loads and blasting based effects and evaluated as a result of dynamic analyses performed by damage risk finite element method, and it was determined that interior forces which are formed by blasting based vibrations on structural members were at a lower level than the interior forces values obtained from design loads. In case the building gets damaged by the realization of blasting activities, although the effect of blasting activity is determinant, the building should bear the effects in case of such damage.
