Taking Guangzhou Underground Line 2 and Nanjing Underground Line 1 as examples? the article introduces application of single layer bush waterproofing system and single layer zoning grouting bush waterproofing system domestically.

• 通过广州地铁二号线和南京地铁一号线的工程实例,介绍了单层衬套防水系统和单层分区注浆衬套防水系统在国内的应用。