Preface 1 Scope 2 Normative references 3 Terms and definitions 4 Basic requirements 5 Materials 5.1 Manhole cover 5.2 Well chamber and wellbore 5.3 Cushion and foundation 5.4 Other materials 6 Design 6.1 General requirements 6.2 Loading conditions 6.3 Structural requirements 7 Construction of new inspection wells 7.1 General Requirements 7.2 Excavation of foundation trench 7.3 Foundation foundation 7.4 Well shaft and well chamber 7.5 Backfilling 7.6 Installation of well rim, well seat and manhole cover 8 Maintenance and reinforcement of existing inspection wells 8.1 General requirements 8.2 Main points of maintenance and reinforcement 9 Quality inspection 9.1 General requirements 9.2 Foundation foundation 9.3 Well Chamber shaft 9.4 Foundation trench backfilling 9.5 Manhole cover installation 10 Maintenance management
T/ZS 0337-2022 history
2022T/ZS 0337-2022 Technical specification for application of municipal pipeline inspection Wells