海绵城市建设是减缓城市内涝、提高雨水资源利用、优化生态环境的重要举措，而滨海典型区是复杂的水文、生态交错带，受限于滨海地区特有的地理和生态环境，地下水的埋藏条件往往会对海绵城市的建设产生一些约束，因此理清该区域地下水对海绵城市建设的响应机制与约束条件十分必要。本研究以资料收集、实际调查为基础，以室内实验和计算机模拟技术为手段，以理清区域地下水动态过程为目标，从水均衡角度出发对海绵城市水文循环过程进行定性分析，提出地下水对海绵城市建设的响应机制与约束控制条件；针对雨洪补给过程中可能带来的地下水位壅高、雨水中颗粒物堵塞海绵体等潜在问题，设计利于雨水高效利用的新型复合功能LID（Low Impact Development）设施并进行物理模拟及优化，为海绵城市建设提供理论基础、技术手段和实践依据。

Sponge urban construction is an important measure for slowing down urban waterlogging, improving usage of rainwater resources, and optimizing the ecological environment. The buried conditions of groundwater often have some constraints on the construction of sponge city, so it is necessary to clarify the response mechanism and constraints of groundwater in the area to sponge city construction. Based on data collection, actual investigation, indoor experiments and computer simulation techniques, this research aims to clarify the dynamic process of groundwater in the region, and to conduct a qualitative analysis of the hydrological cycle process in sponge city from the perspective of water equilibrium. The response mechanism and control conditions of groundwater to sponge city construction are put forward. In response to potential problems such as high water table congestion and particulate matter blocking sponge in rainwater during the rain flood supply process, a new compound function LID（Low Impact Development） facility that is conducive to the efficient use of rainwater is designed and physical simulation and optimization is carried out. It provides theoretical basis, technical means and practical basis for the construction of sponge city.