Overview of Vacuum Preloading Technology
Vacuum preloading technology is a ground improvement technique used to accelerate soil settlement and increase soil strength, especially in soft clays and loose sands. It applies vacuum pressure to the soil, creating negative pore water pressure which aids in faster consolidation.
This method often employs vertical drains combined with a controlled vacuum system allowing water to migrate and escape efficiently from the soil, reducing settlement time and improving bearing capacity for construction.
Key benefits of vacuum preloading include less environmental impact, reduced construction time, and enhanced ground stability suitable for infrastructure and foundation projects.
Learn MoreHow It Works
Vacuum preloading reduces pore water pressure below atmospheric pressure, which enhances drainage and settlement through vertical drains installed in the soil.
Applications
Commonly applied in soft soils below embankments, reclamation areas, and airport runways to reduce consolidation time and improve load-bearing capacity.
Advantages
Environmentally friendly, cost-effective, minimizes excavation, and enables early construction start compared to traditional methods.
Core Patented Technologies
| No. | Patent Title | Certificate No. | Patent No. |
|---|---|---|---|
| Invention Patents | |||
| 1 | Soft Foundation Treatment Method Using Timed Closure of Drainage Channels | 3280234 | 201710107951.2 |
| 2 | Insertion Plate Friction Introduction Mechanism | 2429631 | 201510025786.7 |
| 3 | Water-Vapor Separation Device for Vacuum Preloading Soft Foundation | 2128945 | 201510083730.7 |
| 4 | Water-Vapor Separation Vacuum Preloading Method and Device | 1849630 | 201310481313.9 |
| 5 | Vacuum Preloading Method for Undrained Sand Cushion | 564728 | 200710031221.5 |
| 6 | Strong Drainage Pipe Structure for Soft Soil Reinforcement | 3844935 | 201710867113.5 |
| 7 | Strong Drainage Pump for Soft Soil Foundation Treatment | 4391255 | 201811337894.8 |
| 8 | Sludge Dewatering and Solidification Treatment Method | 4476205 | 201810851304.7 |
| Utility Model Patents | |||
| 9 | Plastic Drainage Board Rewinding Device | 12119429 | 201922273199.6 |
| 10 | Optical Fiber-Based Measurable Depth Plastic Drainage Board | 11957811 | 202020907218.6 |
| 11 | Installation Equipment Conduit for Plastic Drainage Board | 9970225 | 201920245310.8 |
| 12 | Water Construction Vessel for Drainage Board Installation | 8819932 | 201821192770.0 |
| 13 | Sand Spreader Machine | 9304308 | 201821198221.4 |
| 14 | Diesel-Driven Mini Insertion Machine | 8864323 | 201821192054.2 |
| 15 | Electric-Driven Mini Insertion Machine | 8810195 | 201821192842.1 |
| 16 | PVD Construction Vessel | 6972661 | 201720184125.3 |
| 17 | Strong Drainage Pipe with Water Collection for Soft Soil Reinforcement | 7363914 | 201721232166.1 |
| 18 | Low-Level Vacuum Preloading Device for Soft Soil Reinforcement | 6682868 | 201720315839.3 |
| 19 | Low-Level Vacuum Preloading Device for Soft Soil Reinforcement (Improved) | 7586730 | 201721355437.2 |
| 20 | Deep Strong Drainage Consolidation Structure for Soft Soil | 6972859 | 201720799513.2 |
| 21 | U-Shaped Strong Drainage System for Soft Soil Consolidation | 7470909 | 201721355436.8 |
| 22 | Filter-Pipe Strong Drainage System for Soft Soil Reinforcement | 7466952 | 201721353599.2 |
| 23 | Strong Drainage Collection Device for Soft Soil Treatment | 7360519 | 201721232595.9 |
| 24 | Water-Vapor Separation System | 6545276 | 201720184193.X |
| 25 | Water-Based Preloading Device for Soft Soil | 6682850 | 201720177516.2 |
| 26 | Liquid-Level Control Water-Vapor Separator | 4942479 | 201520502856.9 |
| 27 | Jet Vacuum Pump | 3358590 | 201530004153.9 |
| 28 | Jet Vacuum Pump Structure | 4504648 | 201520012955.9 |
| 29 | Three-Phase Motor Protection Device | 3957367 | 201420462699.9 |
| 30 | Environmental Protection Device for Vacuum Preloading Sites | 3066781 | 201220685076.9 |
| 31 | Panel Membrane Sealing Wall | 2938120 | 01220559542.9 |
| 32 | Ultra-Deep Insertion Device | 2972162 | 201220685122.5 |
| 33 | Horizontal Drainage System for Preloading Foundations | 2967732 | 201220559517.0 |
| 34 | Automatic Vacuum Check Valve | 2972962 | 201220685140.3 |
| 35 | Board-Pipe Connector | 1307312 | 200920049617.7 |
| 36 | Injection Molding Machine for Drainage Boards | 12385486 | 202020907165.8 |
| 37 | Production Mold for Drainage Boards | 12385487 | 202020907191.0 |
| 38 | Extrusion Machine for Drainage Boards | 12383863 | 202020909139.9 |
| 39 | Strong Drainage Pipe Preloading Device | 8792710 | 201821192327.3 |
| 40 | Filter-Tube Strong Drainage Device | 8788864 | 201821192841.7 |
| 41 | Vacuum Preloading Control System for Soft Soil | 12368724 | 202020383498.5 |
| 42 | Deep-Well Pump for Vacuum Preloading | 8776775 | 201821191931.4 |
| 43 | Protection Structure for Adjacent Buildings During Preloading | 13306676 | 201922204786.X |
| 44 | Adaptive Full-Drive Insertion Device | 12383014 | 202020453876.2 |
| 45 | Interval-Dissolving Plastic Drainage Board | 12383632 | 202020484501.2 |
| 46 | Optical Fiber Drainage Board | 14696527 | 202022006890.0 |
Patented Technology
In engineering design and construction, through the combination of production and research, we have overcome difficulties, established research projects, obtained patents, and improved the company's competitiveness. Summary: 46 patents, including 8 national invention patents and 38 utility model patents
A Strong Drainage Pump for Soft Soil Foundation Treatment
A type of soft soil foundation reinforcement treatment for strong drainage pipe structure with water collection
Vacuum preloading method for undrained sand cushion
A water vapor separation device for vacuum preloading soft foundation engineering
Water vapor separation vacuum preloading method and device
A Soft Foundation Treatment Method Using the Insertion Plate Friction Introduction Mechanism to Close the Drainage Channel Regularly
Insertion plate friction introduction mechanism
A Soft Foundation Treatment Method Using Timed Closure of Drainage Channels
Main Vacuum Preloading Techniques
Low-Level Vacuum Preloading
A technique that gradually applies vacuum pressure at low magnitudes to improve soil consolidation and strength.
Pressurized Vacuum Preloading
Utilizes combined pressurized air and vacuum for accelerated ground improvement with enhanced efficiency.
Vacuum Dynamic Compaction Preloading
Combines vacuum with dynamic soil compaction to increase soil density and reduce settlement time.
Direct Vacuum Preloading
Applies direct vacuum pressure on soil layers for immediate moisture removal and consolidation enhancement.
Pharmaceutical Vacuum Preloading
Specialized vacuum methods tailored to pharmaceutical soil stabilization contexts requiring precise control.
Vacuum Water Preloading
Technique involving vacuum-assisted water removal to speed up soil dewatering and strength development.
Practical Applications of Sunzo Technologies
Soil Stabilization
Using advanced soil treatment processes to strengthen and stabilize soft soils, ensuring durable foundations for construction projects.
Design & Planning
Comprehensive engineering design processes tailored for soft soil treatment delivering safe, efficient, and cost-effective solutions.
Innovative Equipment
Deploying state-of-the-art hydraulic solidification technology that is both environmentally friendly and highly efficient.
Preloading & Consolidation
Advanced preloading techniques like vacuum surcharge loads to accelerate soil consolidation and improve ground bearing capacity.
Drainage Solutions
Innovative siphon drainage methods that effectively accelerate consolidation in soft soil foundations to reduce settlement times.
Comprehensive Field Applications
Real-world implementations combining multiple technologies ensuring reliability and sustainability across diverse environments.
Why Choose Sunzo
Sustainable Innovation
Sunzo leads with cutting-edge, eco-friendly soil stabilization technology designed to reduce environmental impact without compromising performance.
Precision Engineering
Our expert team uses data-driven analysis to tailor solutions optimized for soil conditions specific to your project needs.
Proven Reliability
Sunzo’s solutions have been tested extensively to ensure long-lasting stability and safety under various environmental conditions.
Ready to Transform Your Project?
At Sunzo, we bring innovative solutions tailored to your soil stabilization needs. Reach out today and let’s build a stronger foundation together.
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