This standard is formulated according to the plan of the formulation and revision of technical standards of water resources and the requirements of SL 1-2002,Specification for the Drafting of Technical Standards of Water Resources.This standard is composedof 9 chapters and 3 annexes.The main contents include the following:-Conditions for setting surge chambers.-Arrangement of surge chambers.-Conventional surge chambers.-Air cushion surge chambers.-Design of surge chambers for water diversion projects.-Structural design and detailing requirements.-Model test,safety monitoring and operation management.