cart 0
Home Technical Articles Prefabricated Structure Optimization and Intelligent Operation of Municipal Inspection Wells ——Buried Pipeline Engineering Applications Based on GB/T 23483 Standard

Technical Articles

Sidebar

Categories

Recent Articles

Customization

We can also customize products with different specifications, colors, uses, etc. according to your needs. Please contact us and provide your drawings for professional solutions and quotes.

Customization Service & Quote

Please contact our Key Account Manager, send your drawings and requirements to get professional solutions, accurate quotes and customized products.

Prefabricated Structure Optimization and Intelligent Operation of Municipal Inspection Wells ——Buried Pipeline Engineering Applications Based on GB/T 23483 Standard

0 Comments / / Post by by 孙飞虎

1. Research Background

Inspection wells are critical nodes in urban underground pipelines, with 41% disease rate in 5 years for traditional brick wells:


  • ＞30mm settlement (62% of failures)
  • ＞2.5% leakage (GB/T 50268-2022 limit 1%)
  • ＜35% manual inspection coverage

2. Core Issue: Failure Mechanisms

2.1 Structural Mechanics

ABAQUS simulation (Figure 1) and field tests show:


  • 0.85MPa shear stress under vehicle load (asphalt tensile strength 0.5MPa)
  • 40% more displacement with <90% backfill compaction
  • 1:3 stiffness ratio between brick and concrete

2.2 Construction Pain Points

Process Traditional Issues Impact
Excavation >50% over-excavation ★★★★☆
Joint treatment >15% grout leakage ★★★★☆
Backfill <92% compaction with small machines ★★★★☆

3. Prefabricated Structure Innovation

3.1 Steel-Plastic Composite Wells

"HDPE base + Q235 steel belt" composite:


Material Type Ring Stiffness (kN/m²) Acid-Alkali Life (years) Construction Time (days/unit)
Brick well 6 15 5
Cast-in-place concrete 8 20 7
Steel-plastic composite 12 30 2


Breakthroughs:


  • Steel belts form 3D support framework (Figure 2), deformation resistance +50%
  • HDPE 导流槽 reduces head loss by 38%

3.2 Prefabricated RC Wells

Tongue-and-groove joint + prestressed rods for collapsible loess:


Joint Type Shear Strength (MPa) Leakage (L/24h) Allowable Settlement (mm)
Plain joint 1.2 1.5 ±10
Tongue-and-groove 2.8 0.6 ±5

4. Intelligent Operation System

4.1 Multi-Parameter Sensor

5-in-1 sensor (Figure 3) monitors:


  • Water level (±2mm)
  • Methane (0-100%LEL)
  • Manhole cover displacement (±0.1mm)
  • Settlement (±0.5mm)
  • Temperature/humidity (±1℃/±3%RH)

4.2 Digital Twin Platform

BIM+IoT enables:


  • 3D visualization of pipeline network
  • 5-level alarm system (e.g., red alert at >1.5m water level)
  • 10-second fault dispatch

5. Engineering Solutions

5.1 Construction Standard

Revised GB/T 23483-2021 requirements:


Parameter GB Requirement Optimized Standard Test Method
Backfill compaction (%) ≥90 95 Ring knife method
Joint leakage rate (%) ≤1.0 0.5 Water tightness test
Monitoring coverage (%) - 100 IoT platform

5.2 Standardized Process

"Three Controls Two Inspections":


  1. Survey control: <±5mm positioning
  2. Lifting control: >60° angle, <0.3% verticality
  3. Backfill control: Impact rolling instead of vibration
  4. Joint inspection: Robot 内窥 (±0.5mm accuracy)
  5. Load test: 10t vehicle 碾压无沉降

6. Field Test Case: Sponge City Project

Index Traditional Well Prefabricated Well Standard Requirement
5-year settlement (%) 4.2 1.1 ≤3
Annual repairs 2.3 0 0
Maintenance cost (¥/unit·year) 800 300 -

7. Advanced Technology Prospects

7.1 Self-Sensing Composite Wells

Carbon nanotube sensors enable self-diagnosis with 0.1% damage detection accuracy.

7.2 Low-Carbon Prefabrication

Recycled aggregate + 3D printing reduces carbon emissions by 40% and waste utilization to 95%.


Conclusion
This paper provides a lifecycle solution for inspection wells through prefabricated innovation + intelligent monitoring. As a professional supplier, we offer:
✅ Steel-plastic/RC prefabricated wells (DN700-DN2000mm)
✅ Customized monitoring systems
✅ Third-party safety and leakage tests


Keywords: Inspection well, prefabricated structure, intelligent monitoring, surrounding diseases, GB/T 23483
Older Post
Newer Post

Leave a comment

All blog comments are checked prior to publishing
Compare Remove All
Products
Rating
Description
Availability
Product Type
SKU
Size
Color
Option
You have successfully subscribed!
 

is added to your shopping cart.