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Constant Resistance and Yielding Support Technology for Large Deformations of Surrounding Rocks in the Minxian Tunnel
المؤلفون المشاركون
Tao, Zhigang
Qiao, Xiaobing
Fan, Jinyan
Guo, Zhibiao
Wang, Fengnian
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-09-28
دولة النشر
مصر
عدد الصفحات
13
التخصصات الرئيسية
الملخص EN
During the excavation of the Minxian tunnel, problems of large deformations of surrounding rocks and failure of support structures appeared frequently, which caused serious influences on construction safety and costs of the tunnel.
Based on laboratory analysis of mineral composition and field investigations on deformation characteristics of the surrounding rocks, the large deformation mechanism of surrounding rocks of the tunnel was considered as water-absorbing swelling molecules of carbonaceous slate and stress-induced asymmetric structural deformations of the surrounding rocks.
The structural deformations of surrounding rocks mainly include bending deformation, interlayer sliding, and crushing failure of local rock blocks.
Then, a new constant resistance and yielding support technology based on the constant resistance and large deformation (CRLD) anchor cable was proposed to control large deformations of surrounding rocks.
The field tests and deformation monitoring were carried out.
The monitoring results showed that compared with original support measure, the surrounding rock deformations, stresses of primary supports, and permanent lining using new support technology decreased greatly.
Among them, the maximum deformation of surrounding rock was only 73 mm.
The effects of field application and results of deformation monitoring showed that the new support technology can effectively control large deformations of the surrounding rocks in the Minxian tunnel.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Fan, Jinyan& Guo, Zhibiao& Qiao, Xiaobing& Tao, Zhigang& Wang, Fengnian. 2020. Constant Resistance and Yielding Support Technology for Large Deformations of Surrounding Rocks in the Minxian Tunnel. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1123985
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Fan, Jinyan…[et al.]. Constant Resistance and Yielding Support Technology for Large Deformations of Surrounding Rocks in the Minxian Tunnel. Advances in Civil Engineering No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1123985
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Fan, Jinyan& Guo, Zhibiao& Qiao, Xiaobing& Tao, Zhigang& Wang, Fengnian. Constant Resistance and Yielding Support Technology for Large Deformations of Surrounding Rocks in the Minxian Tunnel. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1123985
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1123985
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