TY - GEN
T1 - Study on the mechanical behavior of excavation and support construction of shallow tunnel
AU - Yang, Zhen Xing
AU - Song, Liang
AU - Wang, Hao
AU - Jiao, Yu Yong
AU - Li, Shu Cai
AU - Adoko, Amoussou Coffi
AU - Zhang, Huan Qiang
PY - 2013
Y1 - 2013
N2 - In this paper, the mechanical behavior of excavation and support construction of Weishe tunnel, which is a section of the Yangwu expressway, is studied quantitatively using 3D finite difference numerical simulation method. A sequential excavation method is used and the results show that the vault settlement occurs mainly on the phase of upper bench excavation. The convergences of upper and lower sidewalls occur mainly on the phase of lower bench excavation. During the construction, the surrounding rock pressure in the vault and sidewall of the tunnel decrease. Axial force of anchor reaches the maximum value after the finish of second lining. However, the surrounding rock pressure and internal force of steel arch reach the maximum value after completing the upper bench excavation, and then become as smaller as half of the peak value during the lower bench excavation.
AB - In this paper, the mechanical behavior of excavation and support construction of Weishe tunnel, which is a section of the Yangwu expressway, is studied quantitatively using 3D finite difference numerical simulation method. A sequential excavation method is used and the results show that the vault settlement occurs mainly on the phase of upper bench excavation. The convergences of upper and lower sidewalls occur mainly on the phase of lower bench excavation. During the construction, the surrounding rock pressure in the vault and sidewall of the tunnel decrease. Axial force of anchor reaches the maximum value after the finish of second lining. However, the surrounding rock pressure and internal force of steel arch reach the maximum value after completing the upper bench excavation, and then become as smaller as half of the peak value during the lower bench excavation.
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U2 - 10.4028/www.scientific.net/AMM.353-356.1693
DO - 10.4028/www.scientific.net/AMM.353-356.1693
M3 - Conference contribution
AN - SCOPUS:84883144782
SN - 9783037857755
T3 - Applied Mechanics and Materials
SP - 1693
EP - 1698
BT - Advances in Civil and Industrial Engineering
T2 - 3rd International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2013
Y2 - 24 May 2013 through 26 May 2013
ER -