1.0.1 This standard is formulated with a view to adapting to construction and development demands of concrete gravity dam, normalizing design of concrete gravity dam and achieving safety and usability, economic rationality, advanced technology and quality assurance in engineering design.
1.0.2 This standard is applicable to the design of Grades 1, 2 and 3 concrete gravity dam on the batholith of large-scale and medium-scale water resources and hydropower engineering; the design of Grades 4 and 5 concrete gravity dam may refer to this standard.
For the design of extremely important concrete gravity dam whose height is greater than 200m shall not only comply with this standard, but also speical study shall be carried out on some special issues.
1.0.3 Concrete gravity dam can be classified into low dam, medium dam and high dam according to its height. The dam whose height is less than 30m is referred to as low dam, greater than 30 and less than 70 (including 30m and 70m) is referred to as medium low and greater than 70m is referred to as high dam.
1.0.4 Main standards referred in this standard are as follows:
"Standard for Flood Control" (GB 50201)
"Standard for Classification and Flood Control of Water Resources and Hydropower Engineering" (SL 252)
"Design Specification for Intake of Hydraulic and Hydroelectric Engineering" (SL 285)
"Specifications for Seismic Design of Hydraulic Structures" (SL 203)
"Code for Design of Hydraulic Structures against Ice and Freezing Action" (SL 211)
"Hydraulic and Hydroelectric Engineering Specification for Design of Steel Gate" (SL 74)
"Design Code for Hydraulic Concrete Structures" (SL/T 191)
"Construction Specification of Cement Grouting Used for Hydraulic Structures" (SL 62)
1.0.5 The design of concrete gravity dam shall not only meet the requirements of this standard, but also comply with relevant current national and professional standards.
