本规范的主要技术内容是：地下厂房布置、围岩稳定分析、围岩开挖支护设计、施工期围岩稳定反馈分析与动态设计、地下厂房结构设计、防渗排水与防潮设计、安全监测设计。

1 General Provisions
2 Terms
3 Layout of Underground Powerhouse
3.1 Arrangement of Powerhouse Area
3.2 Interior Arrangement of Powerhouse
4 Surrounding Rock Mass Stability Analysis
4.1 General Requirements
4.2 Regression of In-Situ Stress
4.3 Numerical Analysis of Surrounding Rock Mass Stability
4.4 Block Stability Analysis
5 Excavation and Support Design of Surrounding Rock Mass
5.1 General Requirements
5.2 Excavation Design
5.3 Shotcrete Support
5.4 Anchor Bar Support
5.5 Tendon Support
5.6 Concrete Lining
5.7 Support of Special Geological Conditions and Parts
6 Feedback Analysis of Surrounding Rock Mass Stability and Dynamic Design in Construction Period
7 Structural Design of Underground Powerhouse
7.1 General Requirements
7.2 Structural Design
7.3 Detailing Requirements
8 Design of Seepage Control and Drainage and Moistureproof
8.1 General Requirements
8.2 Anti-seepage Curtain Design
8.3 Drainage Design of Powerhouse Area
8.4 Drainage Design of Powerhouse
8.5 Waterproof and Moistureproof Design
9 Design of Safety Monitoring
9.1 General Requirements
9.2 Monitoring Design
9.3 Data Collection and Analysis
Explanation of Wording in This Code
List of Quoted Standards