|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Geotechnical investigations and remediation design for failure of tunnel portal section: a case study in northern Turkey显示文摘Mass movements are very common problems in the eastern Black Sea region of Turkey due to its climate conditions, geological, and geomorphological characteristics. High slope angle, weathering, dense rainfalls, and anthropogenic impacts are generally reported as the most important triggering factors in the region. Following the portal slope excavations in the entrance section of Cankurtaran tunnel, located in the region, where the highly weathered andesitic tuff crops out, a circular toe failure occurred. The main target of the present study is to investigate the causes and occurrence mechanism of this failure and to determine the feasible remedial measures against it using finite element method(FEM) in four stages. These stages are slope stability analyses for pre-and postexcavation cases, and remediation design assessments for slope and tunnel. The results of the FEM-SSR analyses indicated that the insufficient initial support design and weathering of the andesitic tuffs are the main factors that caused the portal failure. After installing a rock retaining wall with jet grout columns and reinforced slope benching applications, the factor of safety increased from 0.83 to 2.80. In addition toslope stability evaluation, the Rock Mass Rating(RMR), Rock Mass Quality(Q) and New Austrian Tunneling Method(NATM) systems were also utilized as empirical methods to characterize the tunnel ground and to determine the tunnel support design. The performance of the suggested empirical support design, induced stress distributions and deformations were analyzed by means of numerical modelling. Finally, it was concluded that the recommended stabilization technique was essential for the dynamic long-term stability and prevents the effects of failure. Additionally, the FEM method gives useful and reasonably reliable results in evaluating the stability of cut slopes and tunnels excavated both in continuous and discontinuous rock masses. | Ayberk KAYA Kadir KARAMAN Fikri BULUT | 2017 | Journal of Mountain Science2017，14，6： | 7 |
| 2 | Slope stability evaluation and monitoring of a landslide: a case study from NE Turkey显示文摘Landslides are quite common natural hazards in the eastern Black Sea region of NE Turkey.Following the heavy rainfall in the K?prülü(Rize)village settlement area,located in this region where the slope debris overlies the agglomerates,a failure occurred.Due to the developed tension cracks and deformations on the ground,houses,tea gardens,and roads were damaged completely.To figure out the causes and mechanism of the sliding and to suggest the precautions,a detailed geotechnical study was carried out.Along the five survey lines,twelve boreholes were drilled with a total depth of 300 meters.Also,the geophysical surveys on ten profiles were conducted and the inclinometer measurements were taken in five boreholes.Undisturbed and disturbed samples were collected and laboratory experiments were performed.Inclinometer measurements indicated that the sliding started in the slope debris and then spread to the agglomeratic bedrock.The slope stability was examined using the limit equilibrium(LE)and finite element(FEM)analysis methods.The results of the slope stability analyses showed that the failure mode is talus slide with composite shape and outputs coincide with the inclinometer monitoring results.Based on the collected data,it is determined that there will be unavoidable engineering problems if no precautions are taken.Because of the negative reasons which make the application of supporting methods meaningless in the study area,it is considered that transferring the residences to a safer place without risk of natural hazards will be economical and reliable. | Ayberk KAYA Umit Murat MIDILLI | 2020 | Journal of Mountain Science2020，17，11： | 4 |
| 3 | An investigation of halogens in Izmit hazardous and clinical waste incinerator显示文摘 | Cetin S Veli S Ayberk S | 2004 | WasteManage2004，24，： | 1 |
| 4 | Three column stabilization through posterior approach alone:transpedicular placement of distractable cage with transpedicular screw fixation显示文摘 | Ayberk G Ozveren MF Altundal N | 2008 | Neurol Med Chir(Tokyo)2008，48，1： | 1 |
| 5 | Cellular schwannoma of the greater superficial petrosal nerve presenting with abducens nerve palsy and xerophthalmia: case report 显示文摘 | Ayberk G Ozveren M F Uzum N | 2008 | Neurosurgery2008，63，4： | 1 |
| 6 | Ecological Risk Assessment Using Trace Elements from Surface Sediments of Izmit Bay ( Northeastern Marmara Sea) Turkey 显示文摘 | Pekey H Karakas D Ayberk S | 2004 | Marine Pollution Bulletin2004，48，910： | 1 |
| 7 | Imaging problems and clinical findings in adolescent lumbar disc herniation: a retrospective study 显示文摘 | Keskil S Seakin Z Ayberk G | 2002 | Zentralbl Neurochir2002，63，4： | 1 |
| 8 | Three column stabilization through posterior approach alone:transpedicular placement of distractable cage with transpedicular screw fixation显示文摘 | Ayberk G Ozveren MF Altundal N | 2008 | Neurol Med Chir(Tokyo)2008，4，8： | 1 |
| 9 | Ecological risk assessment using trace elements from surface sediments of Izmit Bay( Northeastern Marmara Sea) Turkey显示文摘 | Pekey H Karakas D Ayberk S | 2004 | Mar Ponut Bull2004，48，： | 1 |
| 10 | Three column stabi- lization through posterior approach alone:transpedicular place- ment o: diatractable cage with transpedieular screw fixation 显示文摘 | Ayberk G Ozveren M F Altundal N | 2008 | Neurol Med Chit(Tokyo)2008，48，： | 1 |
| 11 | Three column sta- bilization through posterior approach alone: transpedicular placement of distraetable cage with transpedicular screw fix- ation显示文摘 | Ayberk G Ozveren MF Altundal N | 2008 | Neurol Med Chir(Tokyo)2008，48，1： | 1 |
| 12 | The effects of low mixing temperature on dough rheology and bread properties显示文摘 | Ayberk Ba?aran Duygu G??men | 2003 | European Food Research and Technology2003，，2： | 1 |
| 13 | Three column stabili- zation through posterior approach alone: transpedieular placement of distractable cage with transpedieular screw fixation显示文摘 | Ayberk G Ozveren MF Altundal N | 2008 | Neurol Med Chir (Tokyo)2008，48，1： | 1 |
| 14 | Three column stabilizationthrough posterior approach alone:transpedicular placement of distract-ible cage with transpedicular screw fixation显示文摘 | Ayberk G Ozveren MF Altundal N | 2008 | Neuro Med Chir(To-kyo)2008，1，： | 1 |
| 15 | Three column stabiliza- tion through posterior approach alone: transpedieular placement of dis- tractable cage with transpedieular screw fixation显示文摘 | Ayberk G Ozveren MF Ahundal N | 2008 | Neurol Med Chir Tokyo2008，48，1： | 1 |
| 16 | Minimally invasive osteosynthesis of adult tibia fractures by means of rigid fixation with anatomic locked plates显示文摘 | Melih Güven Emrah Ceviz Murat Demirel Turhan ?zler Onur Kocadal Ayberk ?nal | 2013 | Strategies in Trauma and Limb Reconstruction2013，，2： | 1 |
| 17 | Three column stabilization through posterior approach alone: transpedicutar placement of distractible cage with transpedicular screw fixation显示文摘 | Ayberk G Ozveren MF Ahundal N | 2008 | Neuro Med Chir (Tokyo)2008，1，： | 1 |
| 18 | Ecological risk assessment using trace elements from surface sediments of Izmit Bay(Northeastern Mar- mara Sea)Turkey显示文摘 | Pekey H Karakas D Ayberk S | 2004 | Marine Pollution Bulletin2004，48，9： | 1 |
| 19 | Three column sta- bilization through posterior approach alone: transpedcular placement of diatrctable cage with teanspedicular screw fixa- tion显示文摘 | Ayberk G Ozveren WF Ahundal N | 2008 | Neurol Med Chir(Tokyo)2008，48，1： | 1 |
| 20 | Subarachnoid, subdural and interdural spaces at the clival region: an anatomical study显示文摘 | Ayberk G Ozveren MF Aslan S | 2011 | Turk Neurosurg2011，21，3： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员