This paper briefly describes the development background of water storage caverns,analyzes the significant advantages of water storage caverns in land use,safety,environment,water quality,and other aspects,as well as the disadvantages of high investment,small scale,poor construction conditions.It proposes classification of water storage caverns based on regulation and storage methods,pressure states,and water flow dynamics categories,and described the characteristics of each type of cavern.It discusses the key technologies for the construction of water storage caverns,including site selection,overall layout,structural design,inlet and outlet and supporting facilities design,anti-seepage and drainage design,water and aerodynamic design,water quality simulation,underground engineering construction,calculation and analysis,etc.Finally,a planning case is provided to illustrate the advantages of water storage caverns in flood control,drainage,and water resource development and utilization.The results indicate that water storage caverns have significant advantages such as less land acquisition and higher safety levels.Research and exploration are needed on issues such as water and gas dynamics control,and the transformation and degradation laws of pollutants inside the caverns.
water storage cavernadvantages and disadvantagestypeskey technique