Analysis of hoop stress variation of shield tunnel based on Hurst index
Lianyuan Chang, Daiguo Liu, Xu Li
Available Online August 2015.
- https://doi.org/10.2991/ic3me-15.2015.169How to use a DOI?
- Fractal Theory; R/S analysis; V/S analysis; Hurst index; Time series
- Considering the nonlinearity and uncertainty of first tunnel hoop stress changes that caused by the construction of underwent tunnel in Suzhou metro line 4. According to the basic principles of fractal theory, Hurst index of the hoop stress time series was calculated by using R/S and V/S analysis method. The effectiveness of both method and non-cycle of surface deformation are analyzed combined with V statistic. The results show that both R/S and V/S analysis method for the analysis of time series of hoop stress has good validity. The Hurst index gets from R/S analysis method is bigger than that of V/S analysis method. Hurst index of B section in hoop stress time series approaches to one, which suggest that change rule with a strong regularity. The time series of non-cycle of three monitoring points is about 37 days and the hoop stress will be in a stable state after 37 days.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Lianyuan Chang AU - Daiguo Liu AU - Xu Li PY - 2015/08 DA - 2015/08 TI - Analysis of hoop stress variation of shield tunnel based on Hurst index BT - 3rd International Conference on Material, Mechanical and Manufacturing Engineering (IC3ME 2015) PB - Atlantis Press SN - 2352-5401 UR - https://doi.org/10.2991/ic3me-15.2015.169 DO - https://doi.org/10.2991/ic3me-15.2015.169 ID - Chang2015/08 ER -