T/ZZXJX 046-2021 Urban Road Dredging and Repair Technical Specification
T/ZZXJX 046-2021 Urban Road Dredging and Repair Technical Specification
Basic Information
Scope
Main technical content: Foreword 1 Scope 2 Normative reference documents 3 Terms and definitions 4 Design 4.1 General provisions 4.2 Trench excavation 4.3 Roadbed backfilling 4.4 Repair of subbase and base layers 4.5 Repair of asphalt pavement 4.6 Repair of cement concrete pavement 4.7 Repair of paved pavement 4.8 Repair of sidewalks and kerbstones 5 Construction 5.1 General provisions 5.2 Trench excavation 5.3 Roadbed backfilling 5.4 Repair of subbase and base layers 5.5 Repair of asphalt pavement 5.6 Repair of cement concrete pavement 5.7 Repair of paved pavement 5.8 Repair of sidewalks, entrance/exit slopes, and kerbstones 6 Inspection and acceptance of road excavation repair projects 6.1 General provisions 6.2 Large-scale road excavation repair projects 6.3 Small-scale road excavation repair projects 7 Emergency road excavation repair