Evaluation of methods for analyzing early-age cracking risk in concrete walls of tunnel structures

  • Tu Anh Do

    University of Transport and Communications, No. 3 Cau Giay Street, Dong Da District, Hanoi, Vietnam
  • Luan Minh Ha

    Alstom Transport SA, 109 Tran Hung Dao Sstreet, Cua Nam, Hoan Kiem District, Hanoi, Vietnam
  • Quang Thac Nguyen

    Campus in Ho Chi Minh City, University of Transport and Communications, No. 450- 451 Le Van Viet Street, Tang Nhon Phu A Ward, District 9, Ho Chi Minh City, Vietnam
  • Tam Duc Tran

    Hoa Binh Department of Transportation, No. 724, Cu Chinh Lan Street, Dong Tien, Hoa Binh, Vietnam
  • Thang Quoc Tham

    University of Transport and Communications, No. 3 Cau Giay Street, Dong Da District, Hanoi, Vietnam
    Hoa Binh Department of Transportation, No. 724, Cu Chinh Lan Street, Dong Tien, Hoa Binh, Vietnam
Email: thangtq@utc.edu.vn
Từ khóa: early-age concrete, early-age cracking, temperature, shrinkage, tunnel walls

Tóm tắt

This paper is concentrated on investigating the modern methods to evaluate the probability of cracking in urban tunnel structures during construction. The study considers the current standard methods for assessing reinforced concrete walls of an urban tunnel, which experienced early-age cracking. The results obtained using guidelines were compared with actual observations of crack widths in the urban tunnel wall. Examples of using specifications in wall design were also described. The proper method is highlighted with suggestions for a possible path for considering early-age thermal and shrinkage effects in urban reinforced concrete tunnel walls

Tài liệu tham khảo

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15/06/2020
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11/09/2020
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14/09/2020
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30/09/2020
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