Technical regulations for termite control in water conservancy projects
1Key Takeaways
Regulation for termite control technology of water conservancy project DB34/T 2182—2025 This regulation specifies the general principles, ant condition inspection and monitoring, hazard level assessment, termite control measures, construction management, acceptance, and record-keeping for white ant prevention and cont…
2Expert Interpretation
An in-depth interpretation of Anhui Province's latest technical regulations for termite control in water conservancy projects, DB34/T 2182-2025, covering methods for inspecting termites, standards for hazard classification, key points of prevention and control techniques, and construction acceptance specifications. It is applicable to the comprehensive control of termites in water conservancy facilities such as earth-rock dams and embankments.
Core changes in the standard revision
| Revision dimensions | 2014 version | 2025 version | Technical significance |
|---|---|---|---|
| Monitoring system | Only inspection requirements | New intelligent monitoring system (5.2.1.3) | Real-time early warning of ant situation, response time ≤24 hours |
| Prevention and control measures | 7 traditional methods | New drilling and injection method (7.3.4) | Plum blossom-shaped holes, hole depth 1.5-2.0m, drug penetration rate increased by 40% |
| Environmental protection requirements | No clear restrictions | Drug barriers are prohibited (4.3) | Physical prevention and control is mandatory in drinking water source areas |
Three-dimensional assessment system for hazard levels
With nest cavity diameter, queen ant body length, and surface activity density as core indicators:
- Grade I (mild): main nest diameter ≤250mm, ≤5 activity traces per 1000㎡ of ant-infested area
- Grade II (moderate): 250mm＜diameter≤350mm, with flying holes (6.2.1)
- Grade III (severe): diameter＞350mm or penetrating ant tunnels, requiring emergency treatment
Typical case: A main nest with a diameter of 380mm was found on the dam of a reservoir in Chuzhou, accompanied by 3 secondary nests. The grouting reinforcement project was started within 48 hours.
Analysis of innovative prevention and control technologies
Intelligent monitoring system
Combination of UAV detection + IoT trapping box:
- Device spacing 5-10m plum blossom arrangement (5.2.1.2)
- Automatic daily data reporting, alarm accuracy ≥95%
- Automatic measurement and reporting frequency during flight period ≥1 time/30 minutes
Environmentally friendly elimination
Mandatory use in drinking water source areas:
- Physical barrier method: 2-4mm coal slag layer (7.2.2.1)
- Lime soil barrier ditch: 1:9 ratio, 1.5m deep (7.2.2.2)
Suggestions for the implementation of the standard
Key control points for construction:
- The drug-soil barrier must be set up continuously 0.2m below the turf (7.2.1.1)
- The grouting pressure must be strictly controlled at 0.02-0.05MPa (7.3.5.1)
- Drug residue detection must be carried out for large projects (8.2.3)
File management requirements:Construction records must be retained for at least 10 years in accordance with SL/T 824, including:
- Layout of the attractant device
- Drug usage ledger
- Grouting pressure curve