Data-driven safety early warning system for underground construction

Dr. Ling Ma

Huazhong University of Sci & Tech (HUST)

© 2014, Dr. Ling Ma 

HUST BIM center

• 25 Metro lines planned
• >200 kilometers with >130 stations have been built since 2009
• Yangzi river: longest river in Asia and the third-longest in the world
• Chicago of China
• 10.6 million people

Wuhan

© 2014, Dr. Ling Ma 

Safety Early-warning System

© 2014, Dr. Ling Ma 

HUST BIM center

Daily Inspection - Collecting data

© 2014, Dr. Ling Ma 

HUST BIM center

Semantic enrichment

Ma, L., H.B. Luo, and H.R. Chen, Safety risk analysis based on a geotechnical instrumentation data warehouse in metro tunnel project. Automation in Construction, 2013. 34: p. 75-84.

© 2016, Dr. Ling Ma 

ETL-From Data to Information

For each settlement measurement

●Time of the measurement

●Position of the measurement

●Geological profile beneath the marker

●Tunnel face distance to the marker

Ma, L., H.B. Luo, and H.R. Chen, Safety risk analysis based on a geotechnical instrumentation data warehouse in metro tunnel project. Automation in Construction, 2013. 34: p. 75-84.

© 2014, Dr. Ling Ma 

HUST BIM center

Data Denoise

Ding, L., L. Ma, H. Luo, et al., Wavelet Analysis for tunneling-induced ground settlement based on a stochastic model. Tunnelling and Underground Space Technology, 2011. 26(5): p. 619-628.

© 2014, Dr. Ling Ma 

HUST BIM center

Settlement Distribution

Ma, L., L. Ding, and H. Luo, Non-linear description of ground settlement over twin tunnels in soil. Tunnelling and Underground Space Technology, 2014. 42(0): p. 144-151.

Guo, J., L. Y. Ding, H. B. Luo, C. Zhou and L. Ma, Wavelet prediction method for ground deformation induced by tunneling. Tunnelling and Underground Space Technology, 2014. 41(0): p. 137-151.

© 2014, Dr. Ling Ma 

HUST BIM center

Knowledge discovery from the data

Ma, L., H.B. Luo, and H.R. Chen, Safety risk analysis based on a geotechnical instrumentation data warehouse in metro tunnel project. Automation in Construction, 2013. 34: p. 75-84.

The settlement trough width is correlated with the thickness of soil layers

The settlement trough width is time invariant

© 2016, Dr. Ling Ma 

From Knowledge to Wisdom

© 2014, Dr. Ling Ma 

HUST BIM center