About the Authors

Xingzhong Nong

Roles Writing – original draft

Affiliation Guangzhou Metro Design & Research Institute Co., Ltd., Guangdong, Guangzhou, China

Wenfeng Bai

Roles Writing – review & editing

bwf124565@163.com

Affiliation Guangzhou Metro Design & Research Institute Co., Ltd., Guangdong, Guangzhou, China

Guanlan Liu

Roles Supervision, Validation

Affiliation School of Geodesy and Geomatics, Wuhan University, Wuhan, China

Competing Interests

The authors have declared that no competing interests exist.