Risk assessment and management of excavation system based on fuzzy set theory and machine learning methods.

This paper presents a brief review on major accidents and conducts bibliometric analysis of risk assessment methods for excavation system in recent year. The summarization of potential risks during excavation provides an important index for establishing an early warning system. The applications of fuzzy set theory and machine learning methods in risk assessment during excavation are presented. A case study of excavation in Guangzhou metro station is used to demonstrate the application of a machine learning method for risk evaluation. The large amount of data collected by 3S techniques (RS, GIS and GPS) and sensors increases accuracy of risk assessment levels in excavation. These procedures, integrated into building information modelling (BIM) management platform, can manipulate dynamic safety risk monitoring, control, and management. Finally, the processing and analysis of big data obtained from 3S techniques and sensors provide promising perspectives for establishing integrated technology system for excavation. Unlabelled Image • Potential risks occurred during excavation construction are summarized. • The methods for risk assessment of excavation are presented. • Characteristics of excavation risk assessment: (i) subjective to objective; (2) qualification to quantification. • Random forest model for evaluating risk for excavation system is illustrated. • Perspective using advanced technologies for excavation management is proposed. [ABSTRACT FROM AUTHOR]