Multi-functional Intelligent Tunneling Apparatus for Partial Excavation Simulation
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Solution Overview
Problem
Current model test techniques for tunnel excavation lack the ability to simulate partial excavation processes accurately, as they rely on manual or full-section excavation methods, failing to replicate actual tunnel construction methods effectively.
Innovation Solution
A multi-functional intelligent tunneling apparatus comprising an operating platform, a slurry pumping system, a multi-functional rotary tunneling system, a precision power propulsion system, and an information acquiring and processing system, which enables accurate partial excavation and full-section excavation using different construction methods, with automated control and real-time monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual excavation or full-section excavation with conventional tunneling machines is used in model tests, then the excavation process can be completed, but it cannot restore the construction methods applied in actual tunnel construction processes
Solution Approach 1:
The tunneling machine is divided into multiple independent working sections (drilling section, blasting section, support section) that can operate independently or in combination. The cutting head is segmented into multiple cutter blocks that can be selectively activated. This segmentation enables the machine to perform different excavation methods (full-section, partial, sequential drilling and blasting) to accurately simulate various actual construction methods in model tests.
Solution Approach 2:
The tunneling machine is designed as a multi-functional apparatus that can perform multiple excavation methods (full-section excavation, partial excavation, sequential drilling and blasting, TBM simulation) using a single integrated system. The machine includes universal components such as a multi-functional cutting head, adjustable support system, and controllable propulsion mechanism that can adapt to different excavation scenarios, making it universally applicable for various model test requirements.
2Adaptability or versatility
If a multi-functional intelligent tunneling apparatus with multiple independent operating channels is used, then accurate partial excavation and full-section excavation can be simulated, but the device complexity increases
Solution Approach 1:
Multiple functional components are merged into integrated assemblies to reduce overall complexity. The cutting head combines drilling, blasting, and support functions in a single assembly. The propulsion system integrates hydraulic cylinders and control mechanisms into a unified drive unit. The dust removal system combines suction channels and filtration components into an integrated exhaust assembly. These mergers maintain multi-functionality while simplifying the overall device structure.
Solution Approach 2:
Components are nested within each other to save space and reduce complexity. The support shaft is nested within the tunneling bucket, allowing it to move along a guide rail inside the bucket structure. The cutting tools are nested within the cutting head assembly, which itself is nested within the tunneling machine body. This nested arrangement allows multiple functional elements to coexist in a compact configuration, reducing device complexity while maintaining versatility.
Data Source
AI summary
The present disclosure discloses a multi-functional intelligent tunneling apparatus and method for simulating partial excavation of tunnel. The apparatus comprises an operating platform, a multi-functional rotary tunneling system, a precision power propulsion system, an information acquiring and processing system, a digital display control box and a slurry pumping device, wherein, the multi-functional rotary tunneling system includes a plurality of independent operating channels, and can realize multi-functional simulation of a tunnel construction process, including drilling, slurry injecting, and partial excavation under real-time monitoring; under the control of the digital display control box, the precision power propulsion system can realize the fine control of the multi-functional rotary tunneling system by means of hydraulic monitoring and preset advance distance. The present disclosure can simulate partial excavation steps of tunnel well, ranging from drilling, slurry injecting, different partial excavation methods, supporting and data postprocessing and analyzing of test. The operating and testing method are easy, and with high reliability and high degree of automation and intelligence.