In deep foundation pit construction process, it is necessary to control underground water effectively. Starting from the damage pattern and formation mechanism of underground water, based on the underground water flow theory, this paper discusses several underground water control method's application condition and practice key point, e.g., light well point water lowering, deep well water lowering, waterproof curtain, etc., analyses the impact on surrounding environment due to water lowering and prevention method, and suggest that the comprehensive application of waterproof and water lowering i...
