Problems and countermeasures of environmental geotechnical engineering on Changsha subway line No.1

This paper analyzes characteristics of environmental geotechnical engineering on Changsha subway line No.1,the paper explores main geotechnical engineering problems resulting from subway construction,puts forward effective control countermeasures in light of major environmental geotechnical engineering,with a view to ensure the subway construction safety operation,as well as to protect urban ecological environment balance.