A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prediction Method of Surface Settlement Considering Excess Pore Water Pressure Distribution in Soft Clay
The surface settlement while shield tunneling in clay is consistent of the instantaneous settlement and the consolidation settlement. The consolidation settlement develops with the dissipation of the excess pore water pressure after the shield tail leaves. Considering the excess pore water pressure dissipation, a theoretical method of predicting surface settlement is proposed in this study. The exponent parameter α in the method is determined with a field measurement of the excess pore water pressure. The method is verified by the monitoring data of a large diameter shield tunnel in soft clay, Hangzhou. The result shows that the prediction method has a good feasibility in predicting the surface settlement caused by shield tunneling. In addition, the assumption of parabolic distribution is suitable for the excess pore water pressure above the tunnel axis, and has a reference value for the control of the surface settlement in soft clay.
Prediction Method of Surface Settlement Considering Excess Pore Water Pressure Distribution in Soft Clay
The surface settlement while shield tunneling in clay is consistent of the instantaneous settlement and the consolidation settlement. The consolidation settlement develops with the dissipation of the excess pore water pressure after the shield tail leaves. Considering the excess pore water pressure dissipation, a theoretical method of predicting surface settlement is proposed in this study. The exponent parameter α in the method is determined with a field measurement of the excess pore water pressure. The method is verified by the monitoring data of a large diameter shield tunnel in soft clay, Hangzhou. The result shows that the prediction method has a good feasibility in predicting the surface settlement caused by shield tunneling. In addition, the assumption of parabolic distribution is suitable for the excess pore water pressure above the tunnel axis, and has a reference value for the control of the surface settlement in soft clay.
Prediction Method of Surface Settlement Considering Excess Pore Water Pressure Distribution in Soft Clay
Lin, Zhijun (author) / Shen, Bihui (author) / Wang, Youwen (author) / Jin, Yuyin (author)
21st COTA International Conference of Transportation Professionals ; 2021 ; Xi’an, China
CICTP 2021 ; 798-808
2021-12-14
Conference paper
Electronic Resource
English
| British Library Conference Proceedings | 2011