Modular Full-Face Boring Machine for Flexible Underground Excavation
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Solution Overview
Problem
Full-face machines for underground rock material mining are cumbersome and time-consuming to assemble and disassemble, limiting their use to long, straight routes, making them inefficient for flexible and maneuverable mining or tunnel construction, especially in smaller sections or transverse branches.
Innovation Solution
A modular full-face machine design that breaks down into detachable longitudinal modules, allowing for easy reassembly and movement, enabling efficient excavation in various directions and configurations, including transverse sections, with a support unit for stabilization and a conveying system for rock material removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a full-face machine is used for underground rock material mining, then high excavation speed and efficient route construction can be achieved, but the machine has considerable overall length and is time-consuming to assemble and disassemble
Solution Approach 1:
The full-face machine is divided into multiple transportable modules that can be assembled and disassembled quickly. Each module contains specific functional components (cutting head, support device, conveying device) that can be independently transported and reconnected at the mining location, significantly reducing assembly time while maintaining the machine's excavation capabilities.
2Productivity
If a full-face machine with considerable overall length is used, then high excavation speed can be achieved, but the machine lacks flexibility and maneuverability for smaller sections or transverse branches
Solution Approach 1:
By segmenting the full-face machine into modular units, the system can be configured in different arrangements depending on the mining requirements. The modules can be assembled to create compact configurations for transverse branches or extended configurations for long straight routes, providing both high excavation speed and adaptability to various mining geometries.
Solution Approach 2:
The modular design allows the full-face machine to be dynamically reconfigured for different mining scenarios. Modules can be added, removed, or rearranged based on the specific geometry and length of the mining route, enabling the system to adapt from long straight tunnels to short transverse branches while maintaining efficient excavation performance.
3Ease of operation
If a full-face machine is designed as a compact unit, then ease of transport and handling can be improved, but the machine complexity increases for assembly and disassembly
Solution Approach 1:
The full-face machine is segmented into standardized modules with pre-defined connection interfaces. Each module is designed to be self-contained and transportable, simplifying handling and transport. The standardized interfaces reduce assembly complexity by providing clear connection points and procedures, making the reassembly process more straightforward despite the modular configuration.
Solution Approach 2:
The modular design employs universal connection standards and interchangeable components across different modules. This universality simplifies assembly and disassembly operations, as the same connection procedures and attachment mechanisms are used throughout the system, reducing the complexity that would otherwise arise from customizing connections for each module.
Data Source
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AI summary
The invention relates to a method for extracting rock material underground by forming a drift, and a full face boring machine provided for this purpose, comprising a rotatably driven cutting head which has a drill diameter that predefines the diameter of the drift. According to the invention, by means of the full face boring machine, a first drift is started and formed in a first drift direction emanating from a first main path to a second main path, the full face boring machine is turned around in the second main path, and by means of the full face boring machine a second drift is advanced and formed emanating from the second main path in a second drift direction which is substantially opposite to the first drift direction, which second drift extends along the first main path at a distance.