针对基坑工程周边无排水条件、区域位置敏感等不利条件下的高承压水处理的技术难题，以杭州地铁1号线三期机场风井项目为例，优化基坑设计参数，采用抽灌一体化承压水处理方案，设计承压水回灌系统。研究结果表明，基坑各项监测数据均在可控范围内，验证了抽灌一体化承压水处理方案的可行性，对于类似工程条件下的深基坑施工具有一定的借鉴价值与指导意义。

Effective treatment of confined aquifers is an important factor that determines excavation safety. By taking the example of the project of the airport ventilation shaft of Hangzhou Metro Line 1 Phase III, this study optimizes the design parameters of excavation and adopts the treatment measure of pumping and recharging the confined aquifer, effectively solving the technical difficulties; for example, no drainage conditions near the excavation engineering and the adverse conditions of the sensitive surrounding location. The monitoring results indicate that each excavation-monitoring dataset is under control. The treatment measures for pumping and recharging confined aquifers can not only reduce engineering costs but also effectively protect the surrounding environment, providing a certain reference value and guiding significance to the construction of deep excavations under similar engineering conditions.

U231