Underground Tunnel Polyurea Solution
A mobile dual-circuit package for primer application and two-component polyurea waterproofing, with configured surface-conditioning interfaces.
Seamless Elastomeric Defense for Subterranean Lifeline Infrastructure
A mobile dual-circuit package for primer application and two-component polyurea waterproofing, with configured surface-conditioning interfaces. The package covers the mobile spray chassis, infrared surface-conditioning module, separate primer and polyurea circuits, gun and controls. Generation and laser-guided scanning are optional. Coating and primer are supplied separately; lighting and drainage are customer interfaces. Site ventilation, exposure control and access arrangements are addressed separately from formulation solids content.
Mobile Dual-Circuit Package
The primer and polyurea circuits are separately configured on the specified mobile chassis.
Surface-Conditioning Interfaces
Preparation, drying and priming are selected for the substrate and coating supplier requirements.
Select the equipment, coating build-up and inspection plan against the substrate, part geometry, production target and site conditions. Material qualification and reported outcomes require project-specific records.
Turnkey Underground Waterproofing Process
A configured sequence of substrate preparation, material conditioning, application, cure and inspection for the selected coating system.
Joint Preparation & Debris Evacuation
Concrete joints and walls are mechanically ground to remove laitance, followed by vacuum cleaning and installing backing rods in 20 mm expansion bevels.
Vehicle Infrared Flash-Drying
The specified surface-conditioning module is used within the substrate and primer supplier requirements. A single surface reading is not assumed to establish bulk dryness or adhesion suitability.
Medium-Pressure Capillary Primer Sealing
An airless priming circuit applies moisture-tolerant penetrating epoxy primer, sealing microscopic concrete pores to prevent subsequent outgassing.
Reference Solution Engineering Envelope
Supplied configuration and coating-system references. Values depend on the stated material, substrate, test and operating conditions; original records are not attached.
| Parameter | Value / Unit | Applicable Configuration / Conditions |
|---|---|---|
| Subterranean Daily Output | Up to 1,200 m² | Mobile self-propelled dual-circuit spray vehicle; shift length, coating thickness and good-area counting require confirmation |
| Polyurea Working Pressure | 16.0 to 18.0 MPa | Heavy-duty hydraulic proportioning skid |
| Membrane Tensile Elongation | Greater than 450% | ASTM D412 test on cured pure polyurea; supplied material/test result requires original specimen, method and report |
| Dynamic Crack Bridging | Up to 2.0 mm fissure | Cyclic concrete joint movement testing; supplied material/test result requires original specimen, method and report |
| Hydrostatic Resistance Head | 0.5 MPa (50m water head) | Sustained 72 hours under GB 50108 test cell; supplied material/test result requires original specimen, method and report |
| Vehicle Operating Dimensions | 4.2m length x 1.75m width | Navigates standard 2.5m utility tunnel compartments |
Core Equipment for This Solution
The package covers the mobile spray chassis, infrared surface-conditioning module, separate primer and polyurea circuits, gun and controls. Generation and laser-guided scanning are optional. Coating and primer are supplied separately; lighting and drainage are customer interfaces. Site ventilation, exposure control and access arrangements are addressed separately from formulation solids content.
Core Advantages of Haifeng Tunnel Solutions
Configured process mechanisms and project interfaces for the selected equipment package.
Mobile Dual-Circuit Package
The primer and polyurea circuits are separately configured on the specified mobile chassis.
Surface-Conditioning Interfaces
Preparation, drying and priming are selected for the substrate and coating supplier requirements.
Joint-System Design
Movement capacity depends on the complete joint detail, reinforcement and tested coating build-up.
Waterproofing Verification
Hydrostatic performance and application output require defined specimens, curing conditions and project records.
Related Project Draft
Review the project configuration described in the supplied brief. Project records and reported results require verification before public use.
Frequently Asked Questions
Find answers about Underground Tunnel Polyurea Solution, including material selection, equipment configuration and the information needed to plan a production line.
How is a tunnel waterproofing system selected?
How is vehicle access confirmed?
How are gel time, cure and readiness for water pressure separated?
Does a high-solids formulation remove tunnel ventilation requirements?
Request an Underground Waterproofing Proposal
Share the substrate or finished part, selected materials, coating and quality requirements, target output, automation needs and factory or worksite conditions.
