深基坑承压水抽灌一体化设计及工程应用

Design and Application on Pumping-recharge Integration System of Deep Foundation Excavation

为控制因水位下降而引起的保护建(构)筑物的环境变形,提出了一种深基坑承压水抽灌一体化设计及运行控制的理念。其中"双水位"控制是一体化设计及运行控制的导向标,而抽汲出的水经一体化管路直接回灌至地层中,可避免含水层的污染,同时相对自来水回灌大大节约了水资源。对深基坑抽灌一体化的内涵、相关原理、组成特点及控制要点进行了阐述。最后以上海汉中路枢纽站为例,总结分析了深基坑抽灌一体化设计及运行控制在该工程实践中的应用。

To control the environmental deformation of buildings constructed caused by falling groundwater levels, pumping-recharge integration design and operation control concept of deep foundation excavation were put forward. Dual groundwater level control is the guidepost of integrated design and operation control, the method that pumping water by the pipeline was injected directly into aquifers can avoid contamination of aquifers, and compared with the tap water it can save the water resource. The connotation, principle, characteristics and control points of pumping-recharge integration system were discussed. At last taking the hub station of Hanzhong Road Station in Shanghai as an example, the application and engineering practice of the deep foundation excavation pumping-recharge integration design and operation control were summarized.