The Herrenknecht Lining Lowering System (LLS) is a high-performance, mechanized solution designed for the controlled, efficient, and safe lining of vertical and inclined shafts. With a payload capacity between 120 and 400 tons and a working diameter range of 1.0 to 5.0 meters, it ensures precise and reliable installation even in challenging ground conditions.
Engineered for productivity and operator safety, the LLS integrates remote-controlled operation, automated control systems, and a compact hydraulic drive—making it ideal for both urban and confined jobsite environments.
Key Specifications
- Payload Capacity: 120 – 400 tons
- Applicable Shaft Diameters: 1.0 – 5.0 meters
- Inclination Range: Vertical and up to 25°
- Operation Mode: Remote-controlled, mechanized, and modular
Main Advantages
- Fully mechanized and controlled lining process for maximum accuracy and safety
- Remote-controlled operation minimizes personnel exposure and risk
- Compact hydraulic design optimizes space and energy use
- Adaptable to various pipe diameters and shaft geometries
- High automation and flexible setup for different geology types
- Can be combined with BBR (Boxhole Boring Rig) systems for simultaneous shaft drilling and lining
Product Variants
?? LLS – Jacking Frame Type
Based on Herrenknecht’s proven pipe jacking technology, this configuration uses a hydraulic jacking frame to lower, lift, or press the lining rings during shaft construction.
- Application: Vertical or inclined shafts in fractured or stable geology
- Mechanism: Retractable grab pins hold and move lining rings precisely
- Compatibility: Suitable for both new and retrofitted lining rings with integrated grab pockets
- Benefits: Allows controlled pressing of lining rings under challenging geological conditions
Typical Applications:
- Shaft lining after raise boring or boxhole boring
- Shaft maintenance or lining replacement
- Lining installation in complex geological settings
?? LLS – Strand Jack Type
This configuration employs strand jack technology, similar to Herrenknecht’s Vertical Shaft Sinking Machine (VSM) systems.
It uses multiple strand jack units symmetrically arranged around a circular base frame to handle heavy loads with exceptional precision.
- Load Capacity: Up to 200 tons per strand jack unit
- Setup Flexibility: Adjustable from 0°–90° around the shaft edge
- Configuration: 2–3 strand jack units depending on shaft depth and available space
- Modular Design: Enables fast adaptation to site-specific conditions
Typical Applications:
- Lining installation in vertical shafts with stable geology
- Integration with boxhole backreaming or raise boring systems
- Efficient post-sinking lining installation
Performance & Safety
- Automation Integration: Remote and digital monitoring ensures precision during lifting and lowering operations
- Safety Enhancement: Reduces on-site human exposure and manual intervention
- Versatility: Customizable for varying lining materials, geological profiles, and shaft depths
System Integration
The LLS can be combined with Herrenknecht BBR systems to enable simultaneous drilling and lining, optimizing project timelines and minimizing ground disturbance.
Applications
- Construction of access and ventilation shafts
- Sewer, utility, and metro infrastructure projects
- Mine and tunnel shaft lining operations
- Rehabilitation or replacement of existing shaft linings
Summary
The Herrenknecht Lining Lowering System (LLS) redefines shaft lining efficiency and safety through mechanization, precision control, and adaptability. Whether configured as a Jacking Frame System or Strand Jack System, it ensures fast, controlled, and safe lining installation in vertical and inclined shafts across all geology types.