End Bits 1U1545-1U1546 Segment Kit

Introduction to Trimble PCS900 3D Paving Control System

The Trimble PCS900 3D paving control system is a high-precision automated construction technology that integrates three-dimensional spatial positioning, BIM modeling, and real-time data collaboration to achieve millimeter-level paving control for roads or airport runways. This system directly reads digital design models, replacing the traditional manual wire-pulling positioning method, ensuring an efficient and precise construction process.

I. Core Working Principle

The system adopts the rear intersection technology to set up a high-precision total station (such as the SPS930 model), which tracks the active 360° prism coordinates on the boom of the paver in real time and transmits the position information to the control computer through the data transmission radio.

The control computer, in combination with the BIM model data, calculates the left and right elevation correction values of the ironing plate, automatically sends instructions to the hydraulic valve (such as the CB440 control box), and drives the oil cylinder to adjust the elevation Angle of the ironing plate, achieving dynamic elevation and slope control.

This system supports complex pavement designs (such as transition curves or frequently changing cross slopes), and can adapt to restricted environments like tunnels or narrow corridors, ensuring that the smoothness error is minimized.

Ii. Key Technological Advantages

Millimeter-level precision control ‌ : The paving accuracy usually reaches 3 millimeters (superior to the 10-millimeter standard of traditional methods), significantly reducing material waste and rework rate; For instance, in asphalt paving, it is possible to achieve intelligent optimization of laying more materials in low-lying areas and less in raised areas.

Eliminating human errors ‌ : By replacing manual pile driving and line hanging with automation, deviations caused by line damage or movement can be avoided, while reducing the demand for construction personnel (the case shows a reduction of 6 personnel).

Harsh environmental adaptability ‌ : Integrated with active tracking targets and total stations, it can operate stably under conditions of dust, rain, fog or night (such as milling depth control accuracy reaching 4-6 cm), ensuring the continuity of construction.

Iii. Practical Application and Effect

In expressway projects (such as the Beijing-Hong Kong-Macao Expressway expansion and renovation project), this system has controlled the laying error of the water-stabilized layer within ≤3 millimeters, increased the construction efficiency by 20%, and shortened the construction period.

When combined with milling operations (such as the milling function of Trimble PCS900), the system can provide a flat base for asphalt paving, reduce subsequent leveling work, and lower the overall material usage.

This system has become a core technology for large-scale infrastructure projects such as airport runways and overpasses, driving the industry towards digital construction.