Geotechnical Inspections and Geotechnical Applications in Underground Rail System Constructions: Halkalı - İstanbul Airport Metro Line Example

Rabia Keleş; İsa Vural

Article Details

Geotechnical Inspections and Geotechnical Applications in Underground Rail System Constructions: Halkalı - İstanbul Airport Metro Line Example

Authors:

Rabia Keleş | İsa Vural

Publisher:

Bingol University

Main Topics:

Mühendislik

Journal:

Türk Doğa ve Fen Dergisi Vol.12 Issue 2, pp.93-98

Document Type:

Article

Publication Date:

6/2023

Document Language:

English

Document ID (Org No.):

2001292405

pISSN:

2149-6366

Keywords:

Abstract:

 In this study, geological researches carried out before the construction of underground rail systems and geotechnical application methods preferred during the construction were examined within the scope of Halkalı-İstanbul Airport metro project. The metro line consists of a total of 66.2 km long underground tunnels, 31.32 km main line and 1.82 km repertorium connection line. 1006 soil and 1230 rock samples were collected for the main line whose geological research was carried out with 198 core drillings with a total length of 9588.5 m. The results of the laboratory tests on the samples and the field tests carried out in the boreholes were obtained. In addition, a total of four two-dimensional inverted solution resistor underground sections were obtained by using the Multiple Electrode Electrical Resistance Tomography measurement method in the middle of two lines Line-1 Km. 61440  61 660 Line-2 Km: 61 400 - 61620, in the Olympic Stadium station Km: 62215  62 490 and in the TBM route Line-2 Km: 62 835  63050. The geological sections obtained from the drillings and the geophysical sections obtained by the electrical resistivity method were compared.

 In this study, geological researches carried out before the construction of underground rail systems and geotechnical application methods preferred during the construction were examined within the scope of Halkalı-İstanbul Airport metro project. The metro line consists of a total of 66.2 km long underground tunnels, 31.32 km main line and 1.82 km repertorium connection line. 1006 soil and 1230 rock samples were collected for the main line whose geological research was carried out with 198 core drillings with a total length of 9588.5 m. The results of the laboratory tests on the samples and the field tests carried out in the boreholes were obtained. In addition, a total of four two-dimensional inverted solution resistor underground sections were obtained by using the Multiple Electrode Electrical Resistance Tomography measurement method in the middle of two lines Line-1 Km. 61440  61 660 Line-2 Km: 61 400 - 61620, in the Olympic Stadium station Km: 62215  62 490 and in the TBM route Line-2 Km: 62 835  63050. The geological sections obtained from the drillings and the geophysical sections obtained by the electrical resistivity method were compared.

 In this study, geological researches carried out before the construction of underground rail systems and geotechnical application methods preferred during the construction were examined within the scope of Halkalı-İstanbul Airport metro project. The metro line consists of a total of 66.2 km long underground tunnels, 31.32 km main line and 1.82 km repertorium connection line. 1006 soil and 1230 rock samples were collected for the main line whose geological research was carried out with 198 core drillings with a total length of 9588.5 m. The results of the laboratory tests on the samples and the field tests carried out in the boreholes were obtained. In addition, a total of four two-dimensional inverted solution resistor underground sections were obtained by using the Multiple Electrode Electrical Resistance Tomography measurement method in the middle of two lines Line-1 Km. 61440  61 660 Line-2 Km: 61 400 - 61620, in the Olympic Stadium station Km: 62215  62 490 and in the TBM route Line-2 Km: 62 835  63050. The geological sections obtained from the drillings and the geophysical sections obtained by the electrical resistivity method were compared.

 Bu çalışmada yeraltı raylı sistemleri inşası öncesinde gerçekleştirilen jeolojik araştırmalar ve inşası sırasında tercih edilen geoteknik uygulama yöntemleri Halkalı-Yeni Havalimanı metro projesi kapsamında incelenmiştir. Metro hattı 31,32 km ana hat, 1,82 km depo bağlantı hattı olmak üzere toplam 66,2 km uzunluğundaki yeraltı tünellerinden oluşmaktadır. Jeolojik araştırması toplam 9588,5 m uzunluğunda 198 adet karotlu sondaj ile gerçekleştirilen ana hat için 1006 adet zemin, 1230 adet kaya numunesi toplanmıştır. Numuneler üzerinde yapılan laboratuvar deneylerinin ve sondaj kuyularında gerçekleştirilen arazi deneylerinin sonuçları elde edilmiştir. Ayrıca TBM Tünel Açma Makinesi güzergahı iki hattın ortasında Hat-1 Km. 61440  61660  Hat-2 Km: 61400  61620, Olimpiyatköy Stadı istasyonunda Km: 62215  62490 iki adet ve TBM güzergahında Hat-2 Km: 62835  63050 olmak üzere Çoklu Elektrotlu Elektrik Özdirenç Tomografi ölçüm yöntemi kullanılarak toplam dört adet iki boyutlu ters çözüm özdirenç yeraltı kesiti elde edilmiştir. Sondajlardan elde edilen jeolojik kesitler ile elektrik özdirenç yöntemi ile elde edilen jeofizik kesitler karşılaştırılmıştır.

Article Details

Geotechnical Inspections and Geotechnical Applications in Underground Rail System Constructions: Halkalı - İstanbul Airport Metro Line Example

Authors:

Rabia Keleş | İsa Vural

Publisher:

Bingol University

Main Topics:

Mühendislik

Journal:

Türk Doğa ve Fen Dergisi Vol.12 Issue 2, pp.93-98

Document Type:

Article

Publication Date:

6/2023

Document Language:

English

Document ID (Org No.):

2001292405

pISSN:

2149-6366

Underground tunnels,

Geotechnics,

Geophysics,

Electrical resistivityYeraltı tünelleri, Jeoteknik, Jeofizik, Elektrik özdirenç

Issues

Article Details

Geotechnical Inspections and Geotechnical Applications in Underground Rail System Constructions: Halkalı - İstanbul Airport Metro Line Example

Authors: Rabia Keleş | İsa Vural

Publisher: Bingol University

Main Topics: Mühendislik

Journal: Türk Doğa ve Fen Dergisi Vol.12 Issue 2, pp.93-98

Document Type: Article

Publication Date: 6/2023

Document Language: English

Document ID (Org No.): 2001292405

pISSN: 2149-6366

Underground tunnels,

Geotechnics,

Geophysics,

Electrical resistivityYeraltı tünelleri, Jeoteknik, Jeofizik, Elektrik özdirenç

Issues

Authors:

Rabia Keleş | İsa Vural

Publisher:

Bingol University

Main Topics:

Mühendislik

Journal:

Türk Doğa ve Fen Dergisi Vol.12 Issue 2, pp.93-98

Document Type:

Article

Publication Date:

6/2023

Document Language:

English

Document ID (Org No.):

2001292405

pISSN:

2149-6366