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IF 3.7 2区工程技术 Q3 ENGINEERING, ENVIRONMENTAL

Bulletin of Engineering Geology and the Environment Pub Date : 2025-03-19 DOI:10.1007/s10064-025-04217-y

Servet Karahan, Evren Posluk, F. Burak Büyükdemirci, Candan Gokceoglu

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引用次数: 0

摘要

在 2023 年 2 月 6 日帕扎克（Pazarcık）地震（威力 7.7 级）中，马拉蒂亚-纳尔勒常规铁路线上的 T3 号隧道与地表断裂处相交，部分隧道完全受损。本研究介绍了调查结果以及隧道的重新设计。T3 号隧道建于 1933 年，采用互锁石砌衬砌，被东安纳托利亚断裂带（EAFZ）的其中一段--埃尔肯内克断层切开，隧道入口周围引发了山体滑坡。在这两个因素的影响下，隧道发生了坍塌和各种变形。为了解塌方的特征，除了现场观测外，还进行了详细的地质、地球物理和岩土工程研究。随后，对隧道进行了重新设计和修复，以恢复铁路的运营。为此，重新设计项目包括两个阶段的工程解决方案，包括隧道内和隧道内施工。在第一阶段，利用支撑系统对入口滑坡进行修复；在第二阶段，进行隧道加固注浆、重新设计入口结构和重建隧道支撑系统。获得的数据和科学评价与分析一并提交。交通结构在地震中和地震后继续发挥作用至关重要。因此，本研究中介绍的案例是隧道文献中罕见而有趣的案例之一。地震发生 6 个月后，T3 号隧道的施工工作顺利完成，而余震却持续了 30,000 多次。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Re-design of a railway tunnel intersected by surface rupture of the Erkenek fault segment during the 6 February 2023 Pazarcik (Mw 7.7) Earthquake (Türkiye)

The T3 Tunnel on the Malatya-Narlı Conventional Railway Route was intersected by the surface rupture during the February 6, 2023 Pazarcık Earthquake (Mw 7.7), and a part of the tunnel was damaged completely. In this study, the investigation results, and re-design of the tunnel, are presented. The T3 Tunnel, which was built in 1933 with interlocking stone masonry lining, was cut by the Erkenek fault, one of the segments of the East Anatolian Fault Zone (EAFZ), and a landslide was triggered around the tunnel portal. Under the influence of these two factors, collapse, and various deformations occurred in the tunnel. To understand the character of the failure, detailed geological, geophysical, and geotechnical studies were carried out in addition to in-situ observations. Subsequently, the tunnel was re-designed and repaired to open the railway to service. For this purpose, a re-design project was developed that included 2-stage engineering solutions including on-tunnel and in-tunnel construction efforts. In the first stage, the portal landslide was rehabilitated using support systems, and in the second stage, tunnel consolidation injection, redesign of the portal structure, and reconstruction of the tunnel support system were carried out. The obtained data and scientific evaluations are presented together with analyses. It is of vital importance that transportation structures continue to function during and after earthquakes. Therefore, the case presented in the study is one of the rare and interesting cases in terms of tunneling literature. The construction efforts in the T3 Tunnel were completed without any problems 6 months after the earthquakes, while more than 30,000 aftershocks continued.

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来源期刊

Bulletin of Engineering Geology and the Environment 工程技术-地球科学综合

CiteScore

7.10

自引率

11.90%

发文量

445

审稿时长

4.1 months

期刊介绍： Engineering geology is defined in the statutes of the IAEG as the science devoted to the investigation, study and solution of engineering and environmental problems which may arise as the result of the interaction between geology and the works or activities of man, as well as of the prediction of and development of measures for the prevention or remediation of geological hazards. Engineering geology embraces: • the applications/implications of the geomorphology, structural geology, and hydrogeological conditions of geological formations; • the characterisation of the mineralogical, physico-geomechanical, chemical and hydraulic properties of all earth materials involved in construction, resource recovery and environmental change; • the assessment of the mechanical and hydrological behaviour of soil and rock masses; • the prediction of changes to the above properties with time; • the determination of the parameters to be considered in the stability analysis of engineering works and earth masses.