A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Strain characteristics of reinforced soft clay around tunnel under metro loads
AbstractThis study investigates the Strain characteristics of reinforced soft clay surrounding a tunnel subjected to cyclic loading, employing the Global Digital Systems cyclic triaxial test on the saturated reinforced clay near Shanghai Metro Line 4’s Hailun Road station. Initially, the study examines the impacts of frequency, dynamic stress amplitude (DSA), and loading cycles on cumulative plastic strain. Following this, the orthogonal design method was employed to organize tests, and an evaluation method for assessing soil strain was developed through mathematical statistical analysis. The results indicate at the constant vibration frequency, cumulative plastic strain increases with an increase in DSA and decreases with as load frequency increases. DSA is the primary factor influencing the axial deformation of subway tunnels, whereas the interaction between load frequency and vibration frequency is negligible. The findings suggest that measures to prevent and control subway tunnel settlement should concentrate on DSA during the early stages of subway operation.
Strain characteristics of reinforced soft clay around tunnel under metro loads
AbstractThis study investigates the Strain characteristics of reinforced soft clay surrounding a tunnel subjected to cyclic loading, employing the Global Digital Systems cyclic triaxial test on the saturated reinforced clay near Shanghai Metro Line 4’s Hailun Road station. Initially, the study examines the impacts of frequency, dynamic stress amplitude (DSA), and loading cycles on cumulative plastic strain. Following this, the orthogonal design method was employed to organize tests, and an evaluation method for assessing soil strain was developed through mathematical statistical analysis. The results indicate at the constant vibration frequency, cumulative plastic strain increases with an increase in DSA and decreases with as load frequency increases. DSA is the primary factor influencing the axial deformation of subway tunnels, whereas the interaction between load frequency and vibration frequency is negligible. The findings suggest that measures to prevent and control subway tunnel settlement should concentrate on DSA during the early stages of subway operation.
Strain characteristics of reinforced soft clay around tunnel under metro loads
Discov Appl Sci
Lin, Zhongcai (author) / Yan, Chunling (author) / Sang, Biaowei (author) / Tang, Yiqun (author)
2024-07-20
Article (Journal)
Electronic Resource
English
Strain characteristics of reinforced soft clay around tunnel under metro loads
| Springer Verlag | 2024
Uplift resistance and progressive failure mechanisms of metro shield tunnel in soft clay
| British Library Online Contents | 2018
Parametric study of twin tunnel under seismic loads for Cairo Metro Line No. 4
| Taylor & Francis Verlag | 2021
Amplitude Ratio Effect on Dynamic Characteristics of Remolded Soft Clay Under Train Loads
| Springer Verlag | 2018
Amplitude Ratio Effect on Dynamic Characteristics of Remolded Soft Clay Under Train Loads
| Online Contents | 2018