1. Institute for Smart City of Chongqing University in Liyang, Chongqing University, Liyang, China
2. School of Resources and Safety Engineering, Chongqing University, Chongqing, China
3. School of Civil Engineering, Chongqing University, Chongqing, China
4. Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University, Chongqing, China