SL/T 595-2023 in English
VALIDMaintenance and repair specification of levee project
- Issued on:2023-03-27
- Implemented on:2023-06-27
- File Format:PDF
- Delivery:Via email within 10 business days
$1,776.00
Introduction
Analysis of the core contents of the standard revision
| Revision dimensions | 2013 version | New contents of the 2023 version |
|---|---|---|
| Technical system | Traditional manual inspection is the main method | Add intelligent detection methods such as drones and the Internet of Things (Article 3.1.3) |
| Structural type | Assembled flood wall is not specified | Special regulations on inspection and maintenance requirements (Article 3.3.1/4.5.5) |
| Ecological requirements | Basic biological protection | New ecological landscape maintenance content (Section 11.4) |
Inspection classification system and implementation specifications
Standards build a four-level inspection system:
- Frequent inspections: dike patrol personnel conduct daily inspections, focusing on the integrity of the dike structure
- Regular inspections: including pre-flood/flood/post-flood inspections, ≥ once a day during flood levels (Article 3.2.3)
- Special inspections: respond to extreme events such as typhoons and earthquakes (Article 3.2.4)
- Special inspections: use the SL/T 436 standard for hidden danger detection (Article 3.4.2)
Detailed explanation of key technical points
1.
The new standard specifies in Articles 4.4.7 and 5.4.4:
- Broken wires of the mesh should be repaired with materials of the same specification, and the reinforcement range should exceed the damaged area by 0.2-0.5m
- When the mesh is rusted as a whole, replace the wire mesh according to the YB/T 4190 standard
2. Crack treatment technology
According to Article 5.7:
| Crack type | Treatment method | Technical parameters |
|---|---|---|
| Longitudinal cracks | Excavation and backfilling | Exceeding 1m at both ends of the crack and 0.3-0.5m at the bottom |
| Horizontal cracks | Horizontal wall partitions | Spacing 3-5m, wall thickness ≥0.5m |
Implementation suggestions and precautions
Flood season management: Article 9.3 requires that pipe burst protection must distinguish between flow soil and pipe burst types, and the construction of anti-filtration and infiltration ditches refers to Appendix D
Informatization construction: Article 12.3 clearly states that observation facilities should comply with SL/T 794 standards, and data collection frequency ≥1 time/day
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